What Can D & T Heating and Cooling Do for You in 2021?

D & T Heating and Cooling is a reputable HVAC company in Wilmington, DE. We are committed to helping families get the most out of their HVAC systems. Our experience and strong track record of delivering projects on-time and on-budget give us a competitive edge.

Our team comprises subject matter experts, and our technicians have a proven track record of success.

We provide the following services.

HVAC System Installation 

One of the most severe issues that will affect your HVAC system efficiency is how your system is installed. Taking the DIY route could prove to be a costly mistake. One wrong step and your HVAC system could develop a significant problem.

HVAC system installation is best left to the experts. We plan projects down to the last detail. Once we understand the factors at play, we will come up with an installation plan.


Home installation projects can be very complicated. A simple mistake, and the team may have to go back to the drawing board. No one understands this better than us. We plan for every possibility and leave nothing to chance.

We will also help you choose the right system for your home. If you are not sure what size HVAC unit you need, our team will perform a Manual J Load calculation to determine the number of BTUs required to cool and heat your home.

HVAC System Repair 

No matter how scorching or cold it gets outside, your HVAC system maintains a comfortable indoor temperature.

Returning home to a broken heating system on an unfavorable winter evening or waking up to a failing AC on a hot, humid summer night can be a traumatizing experience. Whether you have a minor heating or cooling problem or are grappling with a significant issue, we have got you covered.

The only foreseeable thing about heating and cooling systems is their unpredictability. Heating and cooling systems can develop problems during regular office hours or start acting up in the dead of night. We work 24/7 to ensure families get a resolution to their problem when they need it the most.

HVAC System Replacement 

Consider replacing it if your HVAC system is about to damage or on the last stage or damaged beyond repair. We will manage your HVAC system replacement project from start to finish. Safety is a critical concern for us, and we take all necessary precautions to avoid safety issues.

The Financing of Heating and Cooling System

If you are low on funds to buy a new HVAC system, talk to one of our technicians. We offer easy financing options. Our team will help you pick the correct opinion to fit your specific needs.

Whether you want to create an HVAC system maintenance plan but do not know where to start or need help choosing the right system for your home, D & T Heating and Cooling has got you covered.

We have our customers’ best interests at heart. Our team will help you make informed decisions. To discuss your HVAC system repair project in Wilmington, DEwith our team, call 302-838-6905.

Are You Dealing with Faulty Contactor?

A contactor is an electrical device that you can use to switch an electrical circuit on and off. Contactors have three components- the contacts, electromagnet, and enclosure. A circuit usually controls them with a lower power output than the switched circuit.

Contactors are an integral part of air conditioners. If your contactor goes terrible, your air conditioner won’t cool properly, and you may end up having hot and cold spots throughout your home.

How to Tell if You Have a Bad AC Contactor?

Air conditioners with faulty contactors cannot go through cycles (short-cycling) to maintain a comfortable indoor temperature. Here are some common bad AC contactor symptoms.

➢ Your system does not turn on at all.

➢ You hear a buzzing noise whenever you turn on your system.

➢ Your system makes a loud, clicking noise.

➢ Your system turns on but does not turn off quickly.

If you notice one or more of these signs, reach out to an experienced AC contractor in Wilmington, DEas soon as possible.

Testing an AC Contactor 

If your system makes a humming or chattering noise, test your contractor to see if it is the source of the problem. Follow these steps to test your contactor.

➢   Turn off the power to your AC: Your safety comes first. To prevent electrical hazards, shut down your unit at the thermostat and breaker level.

➢   Remove the side cover: Remove the side cover of the condenser. You will see multiple-colored wires connected to a black rectangle positioned vertically. That is your AC’s contactor.

➢   Take pictures: Take pictures of the contactor and corresponding wires from different angles, so you will know how to reconnect them.

➢   Remove the contactor and wires: Unscrew the contactor. Once you have removed the contactor, proceed to remove the wires.

➢   Test the contractor: To test your AC contactor, first set your multimeter to the OL setting and then connect it to the low volt terminals. If the reading is between 5 and 20 volts, your contactor is working correctly. If you get a lower reading or no reading at all, your contactor is faulty and needs a replacement.

Why Should You Not Try to Replace a Faulty AC Contactor Yourself? 

If you try to replace a faulty AC contactor yourself, you could end up injuring yourself or void the warranty. If you commit a mistake, things may get from bad to worse, and you could end up spending a ton on expensive repairs.

Frayed wires or a tripped circuit could cause your contactor to fail. Your air conditioning repair expert will get to the root cause of the problem and eliminate it.

Are you looking for an air conditioning repair expert in Wilmington, DED & T Heating and Cooling is a top-rated AC contractor in Wilmington, DEWe will treat the root cause of your AC problem, not just the symptoms. To schedule an inspection, call 302-838-6905.

How Hvac Professionals Help You To Reap The Benefits Of An Energy-Efficient Heating System

A reliable and smooth functioning HVAC system helps you deal with weather changes by providing your family with a comfortable environment. There is no doubt that energy costs are the primary expenses of any home, but you can save on power bills and even get rid of many health issues with well-maintained heating equipment. 

With heater repair Wilmington de, by experts, you can extend your heating system’s life and save on unnecessary cost on a replacement. Further, there are several other benefits of hiring a professional for a heating system check-up before winters. Take a look.

  • Better Energy Savings

A heating system that is not maintained properly has to work harder to raise the temperature in your home, and so you will see higher power bills. A qualified technician can provide you with the best furnace repair Wilmington de service and keep your energy bills low during winters. 

  • Increase in your Comfort

A malfunctioning furnace or heat pump reduced airflow, and leaky ductwork can be the reason behind your discomfort. Professionals can rectify these HVAC issues fast and make your heating equipment function as a new model. 

  • Enhanced Air Quality

With sufficient maintenance work, cleaning of clogged air filters, dust on the surface, dirty system components in your heating system, professionals can help you boost the air quality in your home and get rid of health issues like allergy and asthma.

Don’t stress about investment, do hire a professional for amplifying the functionality of the heating system now!

Trusting an HVAC company with your heating and cooling systems can help you avoid headaches of repeated repairs, tune-ups, or unnecessary installations. Further, there are many other advantages of calling a trustworthy technician. See for yourself-

  • Affordable rates, best pricing information, and no hidden charges 

If you research the cost of furnace repair in Wilmington, DE, you will find that D&T Heating and Cooling has reasonable prices. You are free to choose any HVAC service that you require with price estimation free of cost.

  • A proficient and top-quality guarantee of work

Experts in handling HVAC equipment can guarantee the quality of their work and are confident. First, professional technicians can show you exactly what is the cause of your HVAC equipment problems. They will only suggest replacement or repair after showing you decent evidence.

  • Straightforward information 

The Best HVAC company has skilled technicians who can talk to you in a language you understand. They can explain what an HVAC solution is best suited for your home and suggest you heater repair Wilmington, DE, when needed

Lastly, your safety is the priority of the HVAC professionals. D&T Heating and Cooling have experienced technicians who inspect gas connections, the burner combustion, and the heat exchanger to confirm that everything is working well. 

Remember, a dirty venting system can produce higher concentrations of carbon monoxide gas, which is deadly. Therefore, go for a Heater or Furnace tune-up service now and remain stress-free and comfortable all year long.

Why Hiring a Professional HVAC Repair & Installation Service is a Smart Choice?

Every HVAC system is different and whether it is an AC, Heat pump, or Furnace, hiring a skilled HVAC team for setting up your HVAC equipment is crucial. This is because professionals follow an intricate process of inspection and reviewing the overall home design to offer you the best possible HVAC solution. Testing the air and water for balance and troubleshooting each part of the HVAC system to assemble it for day-to-day operations is their priority. 

HVAC repair Wilmington, DE, professionals also perform end-to-end testing to guarantee fail-proof operations of your heating system. These HVAC tasks require a few skills that only experts have for further fine-tuning your HVAC system to ensure that everything is working fine. 

An efficient HVAC system in your home means real comfort in all four seasons. 

Selecting a suitable heating or air conditioning system based on your home size, family’s comfort requirements, and efficiency needs can keep you contended all year long. However, installing an HVAC system is a vital investment, and once installed, people often avoid investing in maintenance. 

Now, being a tremendous necessity during the cold winter months, heat pumps and Furnaces are a must-have for your home. Yet, to avoid replacement of your heater prematurely within a few years, you can save money with annual maintenance. 

Surprisingly you can get heater installation Wilmington, DE, at low prices & can even hire professionals for maintenance services at affordable rates. Today, it is easy to book HVAC services online and get a relaxed and sound sleep in the cold nights of winter and hot days in Summers. 

Don’t hesitate to upgrade or tune-up your heating system before winter. 

You can keep the heating and cooling system installed in your home or office operating well if you hire a professional for its maintenance regularly. No doubt, you can fix minor cleaning issues yourself as well. However, if you are installing new equipment or repairing an old one, hiring a professional can cut down costs and save your time. The fact is heater installation Wilmington, DE, is a tricky job, and only a trained professional can identify the problem and find quick solutions.

How the HVAC professionals will help you

D&T Heating and Cooling has technicians who are highly trained, licensed, and remain up-to-date on the HVAC industry’s recent developments. Once you call us, our team will solve your HVAC system related problems reliably and fast. Plus, our expert technicians are well equipped with fully stocked vehicles, which helps them accomplish 90% of HVAC repair Wilmington, DE, on their first visit!

Therefore, If your heating or air conditioning system needs replacing or repairing, we are ready to provide you with a quick HVAC solution for your needs and budget. Contact with D&T Heating and Cooling for various HVAC services like:

  • Furnace Repair, Installation, and Maintenance
  • Heater Replacement, Tune-Up, installation, repairs 
  • Smart Thermostats
  • AC Repair, installation, maintenance, and more

So, what are you waiting for now? Call a professional, take cost estimates of services, and let the experts take care of your HVAC needs. 

Top HVAC Company in Wilmington

The HVAC system is responsible for the indoor air quality in your homes. Without a sound HVAC system, bacteria and germs can fester and grow in the air. This can easily cause sickness and diseases. Some of the most common problems with HVAC systems are:

  • Dirty filters
  • A dirty condenser or evaporator coil
  • Lack of maintenance
  • Blown fuses
  • Mechanical wear and tear

These can easily cause breakdowns and malfunctions. While DIY videos are readily available online to solve these problems, hiring a professional is a much safer option. HVAC system technicians in Delaware are required to have special licensing. This means they’re more than equipped to troubleshoot and solve your problems. If you’re looking for HVAC Companies, Wilmington, DE, to help you upgrade your system, choose D&T Heating and Cooling.

Who are we?

D&T Heating & Cooling has been providing HVAC repair in Wilmington, DE since our establishment. We have 25 years of experience in HVAC systems. We’re a family-owned business and have been serving the community loyally. We’re registered with the Delaware State and have acquired appropriate licensing to provide HVAC services in the state. 

Currently, we provide services to New Castle County and surrounding areas. We provide emergency services for all systems and are dedicated to providing the best service you can find in the market.

Our Services

Our HVAC services include:

  • AC Installations and Replacement
  • AC Maintenance and Tune-ups
  • Heater Installation and Replacement
  • Heater Maintenance and Tune-ups
  • Smart Thermostat services

Why choose us?

  • Professional Technicians: We hire some of the best technicians in the city. Our technicians undergo special licensing according to Delaware state laws before they’re eligible to provide HVAC services. They also have to undergo regular training to keep their knowledge of all systems up-to-date.
  • Experienced in construction: Our technicians are trained to troubleshoot problems in all kinds of HVAC systems. We cater to old and newly constructed buildings throughout the city. While most of our clients live in residential buildings, we also provide HVAC services for small commercial buildings.
  • Complete Packages: You can hire us to install or replace your heating or cooling system. Following that, we also provide regular inspections and check-ups. If we detect a problem during this, we can repair, maintain, or tune-up your system accordingly. If you choose our complete HVAC package, you won’t have to worry about anything else!
  • Customer-oriented: We are a customer-oriented business that depends entirely on customer satisfaction. We use only the best name-brand tools available in the market. All our materials are inspected and tested before installation. We guarantee our work will be to your satisfaction. If you notice any mistakes, later on, you can contact us again.
  • Promotions & Financing: We always work within the budget so that our customer doesn’t have to spend anything extra. We also provide various promotions throughout the year. For those who have a bad credit score, we also provide various financing options. You can find details of promotions and financing on our website, or you can contact us!

If you’re looking for an HVAC Companies, Wilmington, DE, contact us now!

Best HVAC Repair Service in Wilmington

Heating, air conditioning, and ventilation systems require regular maintenance to keep them in the best shape possible. Without that, they can malfunction or break down. The advantage of an HVAC system is that they show symptoms before breaking down. Some of the symptoms are:

  • Weird or unusual sounds
  • Foul smell or smell of gas
  • No hot or cold air
  • No airflow at all
  • A rise in electricity bills

If you notice any of these symptoms in your system, it is time to call a technician to have a look at your HVAC system. One of the best services for HVAC repair Wilmington, DE, is D&T Heating and Cooling.

Who are we?

D&T Heating and Cooling is a family-owned HVAC service. We’ve been serving the New Castle County and surrounding areas since our establishment almost 25 years ago. We’re registered with the Delaware State and have acquired the particular license for providing HVAC services in the state. Since we were established and take pride in saying we provide one of the most affordable HVAC repair services in the state, we’ve been serving the community loyally.

Our Services:

We provide many HVAC services, including:

  • AC Installation and Replacement
  • AC Maintenance and Repair
  • Heater Installation and Replacement
  • Heater Maintenance and Repair
  • Smart Thermostat

Why choose us?

  • Pocket-friendly: We provide services at market cost. If you have a budget, we will stick to the amount you provide. We also update all our customers on pricing and costs, so you know where your money is going. If you’re unsure how much our services will cost you, you can ask us for an estimate before hiring.
  • High-quality equipment: We use only the best quality equipment available in the market. All our raw materials, tools, and products come from name-brands only who have proved to be trustworthy. Additionally, we also inspect all our materials and maintain proper records of them to provide you with the appropriate warranty/guarantee. If you notice any problems with your workmanship, we will always be present to help you out again.
  • Online and offline booking options: Our services can be booked online if you’re unable to call us to book a slot. Simply open our website, add your contact details, service you require, address as well as the time you’re most comfortable with. Our technician will be present at the time of your choice without fail.
  • Complete Service: We provide services in both commercial and residential buildings that are old as well as newly constructed. If you’re looking for Heating services Wilmington, DE, you should choose our complete service package, including regular inspections, tune-ups, maintenance, and repairs. These services can be booked ahead of time or last minute.
  • Special Maintenance Plans: If you have an existing HVAC system, you can contact us regarding our unique maintenance plans. This includes check-ups and inspections every three months. If we detect any problem in your system, we’ll give you a heads up so that you can choose to repair the system immediately instead of waiting for it to break down.

If you’re looking for  HVAC repair Wilmington, DE, contact us now! 

Reduce Your Carbon Footprint By Heating Your Home

According to a survey done by D&T Heating and Cooling- One of the reliable HVAC companies in Wilmington, DE, more than 20% of Wilmington’s total carbon emissions come from the energy used to heat homes. That is because when there is a cold wind in winter, every homeowner tries to heat up their household.

Nowadays, people are even more careful about their carbon footprint than ever before. In addition, everyone is looking for low carbon heating to reduce the impact of their carbon footprint on the planet.

Bring Your Carbon Footprint Down With Appropriate Heating Solutions

Well, in the cold winter of Wilmington, it is impossible to survive without a heating device. On the other hand, this is the moment when we have to try to deal with the climate crisis. Here at D&T Heating and Cooling, we want to inform homeowners of Wilmington about their journey to reduce carbon emissions. It’s just a way to change the way they use the energy to heat up their home.

Here Are Low Carbon Heating Systems That You Can Use for Your Home:

Room Heaters:

Once upon a time, people used to count room heaters to be useless devices, but the story has changed a lot. Nowadays, they are considered less efficient to save energy and reduce bills. Room heaters release heat and keep your home warm in the winter. Besides, it’s a great way to keep your home comfortable while reducing your carbon emissions.

Nowadays, room heaters are being manufactured with the latest technology and they are ready to give greater efficiency and comfort than ever before. In modern room heaters, manufacturers have added the feature of connecting the device to the thermostat, and you can set the desired temperature for the device.

Heat Pumps:

Heat pumps are another low carbon device to keep your home warm and comfortable. Heat pumps are an alternative to fossil fuel furnaces and they run on electricity. They absorb the heat from the outside air and heat your home. The main component used in a heat pump is air, which is a natural and renewable resource. Thus, heat pumps are environmentally friendly.

Additionally, heat pumps are very efficient and there are many types of heat pumps available in the market.


Boilers are also an important source of warmth and comfort during winter. If you compare the old model of boilers with the new ones, you will find sky high differences as new boilers are more energy efficient. This means that new boiler models help people to save energy and money.

The decision of reducing your carbon footprint is a big step that you can take for nature—partner with D&T Heating and Cooling in your journey of reducing the carbon footprint. We offer top-notch heater repairs in Wilmington, DE. Besides, we help the homeowners to find the right solution for their home heating. We offer specific tips for reducing energy waste.

We are here to schedule a heating/heater/furnace replacement, installation, and repair, services in Wilmington, DE. Call us – 302-838-6905 or fill out our contact form to schedule a service.


How To Fix A Furnace Flue?

If your furnace is not heating your home properly as it used to do before, or if your electricity bills are exceeding your monthly energy budget, you should check your furnace and its flue. Your furnace’s flue helps in eliminating carbon monoxide safely from the interior of your home.

Over time, the metal of the furnace flue begins to rust. Moreover, if you do get corrosion, it could be a sign that your furnace flue has not been treated for a long time.

If you avoid taking care of your furnace flue even after noticing the rust formation, you may be at risk of emitting dangerous gases into your home.

Replacing a flue is a complex process and you need experienced hands to do it. D&T Heating and Cooling are highly trusted HVAC companies in Wilmington, DEOur trained and certified HVAC technicians can handle all your home improvement projects, including replacing your furnace flue.

How To Tell If Your Furnace Flue Needs To Be Replaced?

If you can see a leak, it’s a clear sign that you need to repair the flue, but it’s important to remember that not all rust is visible. Your furnace’s exhaust stack extends above the roof and it is hard for you to detect any damage. You can schedule several annual cleanups and inspections to monitor furnace flue. During the annual maintenance, our HVAC technicians alert you to the problems.

How To Replace the Flue Yourself? 

If you are confident in your skillset, you can replace your flue by yourself. First of all, you need to turn off your furnace.

Materials You Will Need: 

  • Tape measure and pencil
  • Gloves
  • Ladder
  • Cordless drill
  • Galvanized sheet elbows and sheet metal ductwork
  • Screws
  • Flue glue or high-temperature silicone
  • Device for pipe crimping
  • Pliers and snips

A Step By Step Guide To Replace Your Furnace Flue 

Remove The Old Flue:

To start the process, you need to unscrew the connections and remove the damaged piece. You need to use a clean cloth to wipe around the edges of the flue.

Cut A New Piece:

Measure the length of the old piece using tape and then use a snip to cut a matching length as the flue pipe. Use a pipe crimper to crimp one end of the pipe.

Push The Pipe Inside:

Next, take the cut pipe and replace it with the old flue and fix all the connections. You need to drill and secure the pipe using some metal screws.

Caulk The Connection:

You can use high-temperature silicone caulk to seal the joints completely. This will prevent the gases from escaping and will help your furnace to run better.

If you encounter any problems during the process or after your project, you can call a professional from D&T Heating and Cooling to check your flue and furnace. If you think and understand the need for help before starting your DIY project, you can call us anytime. With a team of experienced HVAC contractors, we are providing all heating/furnace replacement and installation services in Wilmington, DE. Call us today – 302-838-6905.

Should I Replace the Air Conditioner and The Furnace Together?

The heating and cooling devices inside our home require a considerable investment. Thus, replacing an air conditioner and a furnace at the same time not only sounds expensive, but it actually is. After looking at this from a different perspective and after talking to many homeowners who have replaced their air conditioner and furnace together, we concluded that replacing both the device at the same time may be expensive. Still, it saves you money in the long run. But the question is if your air conditioner has given up, but your furnace can be fixed with heating services in Wilmington, DE should you consider replacing your furnace too?

Replacing the Air Conditioner and the Furnace at the Same Time

An air conditioner runs for 15 to 20 years, whereas the average lifespan is 15 to 30 years. Thus, a furnace works twice as long as an air conditioner. And you might be tempted to postpone the replacement of your furnace if it’s not too old. However, if you are replacing your air conditioner, you must consider changing your furnace to contribute to the entire HVAC system’s efficacy.

When Must You Replace the Air Conditioner and The Furnace at The Same Time?

While it is not necessary to replace your air conditioner and furnace at the same time, you may consider replacing it if the following contemplations are applicable in your case:

Your Furnace Is More Than 15 Years Old: If your furnace is 15 years old, it will definitely start losing its efficiency over time. If you are replacing your air conditioner, you can replace your 15 years old furnace too. A new furnace will increase your home comfort and will help the entire system to work efficiently.

If the Installation Is Complicated: In many cases, it is difficult to replace your air conditioner alone, due to the common electrical wirings. And the HVAC technicians may find replacing both the systems to be a better choice.

If You Want to Avoid Repairs and Replacement for A While: A new furnace will keep the need for heating replacement in Wilmington, DE, at bay. A new air conditioner and furnace together will keep your home comfort uninterrupted.

When Don’t You Need to Replace Your Air Conditioner and Furnace Together?

There are many instances when you must consider waiting to replace your furnace at the same time as your air conditioner, such as:

A furnace lasts for 20 to 30 years, and if your furnace is less than 10 years old, replacing the system may turn out to be a wastage of money. But your air conditioner needs to be changed every 10 to 15 years. And if your air conditioner has reached its maximum lifespan, you must replace the AC alone.

It’s always better to talk to an expert for professional suggestions before making a final decision. Talk to D&T Heating and Cooling to inspect your air conditioner and furnace and determine if you need to replace both the system. Contact us to get free estimates for replacement and other heating services in Wilmington, DE.


Some Heating Mistakes That Are Raising Your Electricity Bills

The coldest months are almost here, and there are many things you can do to increase your furnace’s efficacy. After all, your furnace accounts for the largest part of your monthly utility bills. But while you are putting every effort to save on your energy bills, some misinformation may lead you in the opposite direction, and you may end up needing pricey furnace repair in Wilmington, DE. Before you start believing some wrong information to be accurate, here we are to help you avoid some common mistakes to not spend anything over what’s necessary.

Top 5 Heating Mistakes Spiking Your Utility Bills

There are many mistakes that the homeowners commit while heating their houses. But we have listed the most common and top 5 mistakes responsible for raising your electricity bills.

Heating an Empty House

If you stay out of your home most of the time or unavailable during the weekend, don’t heat your house the way you do when you are present at your home. This mistake is made specifically when you rely upon a manual thermostat for controlling your room temperature. And you can deal with this mistake just by installing a programmable thermostat replacing the old one. A programmable thermostat will save money on energy bills while making your system work less and keeping it safe from pricey furnace repair in Wilmington, DE.

Not Changing the Air Filters

When your furnace air filters are clogged or dirty, they can make your furnace work harder than usual. All HVAC companies in Wilmington, DE, suggest cleaning your air filters frequently and to change them every 30 to 60 days. If you avoid this simple step for long, you waste energy instead of using the power supply sensibly.

Ignoring Drafts and Leaks

Don’t underestimate the amount of heat you are losing due to leaks and drafts. If your France is generating warm air, but if you can’t feel the warmth consistently, it is a sign that your home is losing the warm air. As a result, your furnace will work harder than it should to maintain the comfort inside your home. And you will notice a drastic rise in your electricity bills. Seal the gaps from where cold air is coming, or warm air is leaking out.

Using Your Fireplace for More Heat

Well, it may seem like a great idea, but it is not. When you use your fireplace along with the furnace, you do more harm than good. The heated air will go straight out of your house through the chimney, and cold air will enter from outside. It will make your house colder and will force your furnace to work harder.

Neglecting Regular Furnace Repair

You need to arrange regular heater repair in Wilmington, DE, to maintain your system to work efficiently. But if you miss regular checkups, remember that even a small undiagnosed issue in your furnace may turn into a costly maintenance problem.

D&T Heating and Cooling offer top-notch furnace repair in Wilmington, DE. Our technicians are available 24/7 to serve you. Talk to us and schedule an appointment today! 302-838-6905.