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About Us

D&T Heating and Cooling

With nearly 25 years of experience, you can count on us to expertly replace, repair, and maintain your heating and cooling system. As a family-owned and operated business, we know how important it is to work with a company you can trust. That’s why we stand behind everything we do—treating you and your home with respect while delivering service that is both knowledgeable and courteous.

We work hard for our clients every day, and most service calls are completed the same day—often with repairs made during the initial visit. Our mission is simple: to provide reliable heating and cooling solutions that help you feel comfortable in your own home.

We take pride in building strong connections with our clients by offering a range of personalized options to find the perfect fit for their needs. Our goal is to leave every customer with a lasting sense of quality, comfort, and peace of mind.

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Testimonials

Joanne Lang

I had Chubbz come and service my heat pump that you all put in 14 years ago. Nothing wrong with it, I just wanted to ...

Wanda coleman

Would highly recommend D&T. They were quick to return our call. We set an appointment, They were here on time, the young man was efficient ...

Jacqueline Dearden

We had Chubbz come out and just do a maintenance on our air conditioner. He was very professional and explained everything in a way that ...

Matt Lyons

We hired Mark and his team to install air conditioning in three separate, large, warehouse spaces. Couldn’t be happier with our decision! The workmanship is ...

John landsborough

I recommend D&T withh 100% confidence. I have been in contract with them for over 15 years and have received A++ service. I had to ...

William Mitchell

My ac unit went out on one of the hottest days of the year and upon referral I contacted D&T . The overall experience was ...

Anne F

Stacie is amazingly responsive. The gentleman Pat is the real deal. I’m so glad I switched services. Their service is top notch. Very happy customer!!! ...

Mark B

Just wanted to say thank you to your company and service technicians Ryan, Gary and Dave that responded to my need for service on my heater.  These ...

Dave H.

Went with D&T from recommendations, and Google reviews. Chatted back and forth with Doug to get the thermostat with features that I wanted – to ...

Christine G.

“I highly recommend D&T Heating and Cooling. We had a large project that consisted of two furnaces and two ACs and a water heater that ...

MK M.

“D&T Heating and Cooling installed two American Standard AC compressor units and coils for us. We are extremely happy and impressed with the service, professionalism, ...

Linda G.

New Heat Pump Had a new heat pump installed installers did a professional job everything was tied up nice and neat return service for check ...

Nancy Z.

DT Heating And Cooling Inc. I had a problem in my boiler and no heat on the weekend I call DT Heating and Cooling and ...

Nick & Debbie

Professional Mark was professional, friendly and knowledgeable. Would definitely recommend this company. 7/14/17

Allison M.

Excellent D & T Heating and Cooling operate with professionalism and excellent service. We researched competitive companies and the products they offered, none could compete.

Barbara K.

Very Polite Tech was very polite and very knowledgeable. He explained everything he did; told us the battery was dead in thermostat.

Randy F.

Great Job! Rick did a great job! We will continue to use and refer D&T in the future.

Elizabeth B.

Glad We Found Your Company Rick was pleasant, professional, courteous and a great representative of your company. So glad we found your company.

Geri S.

Explained Everything Tech was professional, very good manners, explained everything clearly.

Chris S.

Very Pleased Very pleased with the service; Mark was thorough and complete.

Richard M.

Pleasure To Work With Mark was a pleasure to work with. Diagnosed the problem very quickly.

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INDUSTRY-LEADING
DUCT & AIR SEALING
TECHNOLOGY


LEarn More Schedule Maintenance

New Furnace And

A/C Installation Any Size!

$7997**Call For Details


Promotions Schedule Installation

The Greater New Castle County Area

20th anniversary
in March



Service Areas Contact Us

INDUSTRY-LEADING
DUCT & AIR SEALING
TECHNOLOGY


LEarn More Schedule Maintenance

New Furnace And

A/C Installation Any Size!

$7997**Call For Details


Promotions Schedule Installation