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Delta T Heating & Cooling LLC

HVAC contractor in Philadelphia, PA.

In Delta T Heating & Cooling LLC's own words

Providing multiple solutions including repairs, installs and modifications, with 24 years of experience in the HVAC industry. Skilled and focused on residential and light commercial equipment.

Trade
HVAC contractor
Business address
925 Dickinson St, Philadelphia, PA 19147
Telephone
(215) 776-4447
Website
deltathvacpro.com
Hours
  • Monday8:00 am - 8:00 pm
  • Tuesday8:00 am - 8:00 pm
  • Wednesday8:00 am - 8:00 pm
  • Thursday8:00 am - 8:00 pm
  • Friday8:00 am - 8:00 pm
  • Saturday9:00 am - 5:00 pm
  • SundayClosed

From the business's Google listing, checked Oct 2026

Register
PA register

Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.

Google Reviews

5.0 (106)

  • These guys are awesome. Respectful, on time, thorough, and they do great work! I can't be happier to have Dimos and the rest of the team be my 'HVAC guy.'

    Nella B.

  • Dimos and crew are excellent at their job. They are knowledgeable, punctual, and thorough. They are consistent and helpful. They completed A+ work on two different systems with ease.

    Brian M.

  • I had a great experience with Delta T Duct Cleaning services. From the moment they arrived, everything was handled professionally and with care. Dimos and his team took the time to explain the entire process to me, which I really appreciated—it made me feel confident in the work being done. Luis and Angelo were awesome—friendly, hardworking, and very thorough. They paid attention to detail and made sure everything was cleaned properly, and they left my home neat when they finished. The whole experience was smooth, and the results were phenomenal. I would definitely recommend Delta T to anyone looking for quality duct cleaning.

    Evelyn H.

  • Fantastic experience! Dimos is very professional, thorough, and took the time to explain everything clearly. Friendly, efficient, and a pleasure to work with from start to finish. Highly recommend to anyone needing HVAC services!

    Colleen K.

  • My heater broke and Dimos showed up within 24 hours. He spent time explaining the problem and my options with pricing. This is not the first time he’s stepped in to help when my AC or heat broke and I always appreciate his prompt action. Highly recommend to anyone in the Philly area!

    Samantha R.

  • I called Dimos this morning about diagnosing an issue, and he was at my house this afternoon. He was friendly, knowledgeable, and quickly figured out what was wrong. He walked me through everything he was going to do before doing it and even looked at our circuit breaker to see if he could improve our setup to make the AC work better. And I haven't even mentioned that it was 100 degrees out! I can't recommend Dimos highly enough, and we will definitely be going to him for any AC needs we have in the future.

    Thomas R.

  • You know when you almost hate to leave a stellar review, because then your new favorite contractor will become so popular you'll never get another appointment?! Our AC went on the fritz today and we took a chance on Delta T Heating & Cooling LLC. Best call we could've made. Not only was Dimos incredibly responsive, but he was impressively professional, knowledgeable, honest and thorough. Before doing any work, he took the time to educate us and informed us of each and every associated cost, so we could make our best, most informed decision. While working, he took pictures and called us both outside and downstairs so we could physically see what he was seeing and doing. Wow! Our air has legitimately never run better- in fact, we had even purchased window units because we just assumed something was wrong with our ductwork and we must not have great air flow. Little did we know the previous owners of our home never serviced the AC so everything was a mess. Dimos, thank you for everything! You provided an incredible service on your Friday night and we couldn't be happier with your professionalism, honesty and integrity.

    Charlotte E.

  • Dimos is one of the best contractors I’ve ever dealt with. Incredibly timely, professional, and has always been able to diagnose any issue I’ve ran into. He explains everything thoroughly and always is patient and makes sure to answer any questions. I won’t go to anyone else in Philly.

    Steve Z.

  • This guy was probably the most patient contractor I've come across, he would take extra time to make sure I didn't have any other questions. He fit us into his schedule and communicated clearly. The only slightly negative thing was the prices quoted didn't match the final bill, though he did mention up front that the estimates they may not be exact. And there wasn't much clarity on the final bill in terms of itemization. But he came out and fixed my issue and I felt he did solid work which matters more to me.

    i G.

  • Updating my review based on the incredible service I just received. The team promptly came out to check on a strange noise I was experiencing when our AC was on. Within 5 minutes, the problem was identified, fixed, and the team made it complimentary because it was so insignificant. I will be using Delta T for all my HVAC needs moving forward! Incredibly professional and respectful of my house. He took the time to explain his work to me and answer all of my questions. Definitely recommend!

    Jimmy G.

Read all reviews on Google

About Delta T Heating & Cooling LLC

Delta T’s repair, installation and modification work

Delta T Heating & Cooling LLC handles HVAC repairs, installations and modifications. The company says it has 26 years of industry experience and works with residential and light commercial equipment.

Delta T Heating & Cooling LLC offers maintenance, air conditioning, heat pumps and mini splits. It also offers emergency service, alongside repair and maintenance work.

Delta T’s rating, reviews and hours

Reviewers most often mention prompt arrivals, careful diagnostics, clear explanations and thorough work; one review raised a concern that an estimate and final bill did not fully align and that itemization was unclear.

The business is open from 8:00 am to 8:00 pm Monday through Friday, from 9:00 am to 5:00 pm Saturday, and is closed Sunday. Reviewers also describe the team as professional, responsive and respectful of homes.

Heating and cooling in Philadelphia

In Philadelphia, utility gas heats 70% of housing units, per the American Community Survey. NOAA normals for 1991-2020 give the city a 57.0°F mean temperature, 65.9°F average high and 48.2°F average low.

Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from the US Census and NOAA.

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