Delta T Heating & Cooling LLC

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.★★★★★

• Dimos was an excellent communicator and quickly fixed my immediate problem while outlining the cause, the solution, and one or two other potential issues in the future based on the current configuration. Very knowledgeable and very accommodating.

  Hassan S.★★★★★

• Highly recommend. Really good service and gave us a lot of good advice for our AC. Appreciate all the professional service. Will definitely call again.

  Bob M.★★★★★

• I’ve been using Delta T for several years now for a rental property I have in Philadelphia. I live in California so it is important to me to use someone I can trust since I’m not there to see whatever work has been done. I’ve always found Dimos to be honest, he won’t oversell you on services you don’t need, and he’s always flexible when working with my tenants to accommodate to their schedules. He’s top notch from start to finish.

  john D.★★★★★

• Dimos was excellent! Called in with no AC on a very hot holiday weekend - he responded quickly to get us on the schedule for the next day - came earlier than he'd originally said - did a full diagnostic, and the system just needed maintenance and cleaning. Communication was very clear and thorough - never felt like there was upselling - and he was great to deal with. Would highly recommend!

  Susan S.★★★★★

• Very satisfied with Delta T’s service! They came late after a long day and fit me in, and did a great job of explaining everything to me. They were upfront about the price, and timely in completing their work while also thorough. Dimos and Jamaal were kind and friendly as well. I would definitely use them again!

  Amanda M.★★★★★

• Amazing. Super professional, very nice and didn’t price gouge.

  Kelly R.★★★★★

• We had a wonderful experience with Dimos! He is very easy to communicate with and gives you updates and explanations on what he sees in your home. Cost is fair and transparent. Very highly recommend Dimos for all your HVAC needs!

  Neha D.★★★★★

• Dimos was professional, on time, and offered fair rates. Would recommend for those in the Philly area!

  Jordan C.★★★★★

• Dimos is very responsive and professional. I highly recommend.

  Frank S.★★★★★

• Amazing! He was so incredibly flexible and when he got to my apartmbwt he quickly fixed the problem and was very patient explaining everything to me. He was also very sweet to my dog :) Overall he was super helpful but the best part was he was so kind

  Katherine O.★★★★★

• Highly recommend!! Called Delta T when I discovered my AC was not working. They were quick to come diagnose the issue and were able to fix it temporarily while the ordered part arrived. Dimos was very thorough and explained everything. Will continue to call Delta T for all my heating and cooling maintenance etc!

  Emily★★★★★

• Can't speak highly enough of Dimos and his professionalism and service. We had a heat outage during the coldest week of the year and Dimos got to us as soon as he could. He diagnosed the problem, temporarily fixed it to restore our heat, and then came back the next day to permanently fix it. Dimos is reliable and friendly and excellent at communicating the issues with your system. Won't ever consider calling someone else for HVAC service as long as he is around

  Tyler H.★★★★★

• Multiple positive experiences with Delta T. Timely, professional, and helpful. Strongly recommend!

  Jacob H.★★★★★

• Dimo provided me with some HVAC unit maintenance as well as a diagnosis on where some water was coming from in my house. He could not have been more thorough and I felt the quality of his work was second-to-none. The transparency of the work he performed and what to look out for moving forward was amazing. He also replaced an air filter of mine with a spare he had in his truck. I will be recommending him to all of my friends and will 100% be returning business to him.

  Steven S.★★★★★

• We have worked with both Dimos and Sam for regular HVAC maintenance as well as for a gas leak issue that we had recently. We cannot say enough about how great this company is. They are responsive, professional, and have fair and transparent pricing. Would recommend them to anyone and plan on exclusively working with them for any HVAC issues.

  Allison S.★★★★★

• We have had a great experience with Dimos and Delta T. Dimos is very professional, transparent and has fair pricing. Will be using Delta T for all of our future HVAC needs.

  Joseph R.★★★★★

• I highly recommend Delta T Heating & Cooling for any HVAC needs. My A/C stopped working during a recent heatwave and I reached out to the owner, Dimos, to see if he could help. He made time in his busy schedule and came the next day for a service visit. Dimos quickly diagnosed the problem and fixed it. He also serviced my entire cooling system to make sure it was performing efficiently. Throughout his visit, Dimos walked me through what he was doing and answered all of my questions with great detail. I am very happy with experience using Delta T Heating & Cooling.

  Scena N.★★★★★

• This was our first time using this service and we were more than pleased. Dimos was a true professional. He responded to me immediately and accommodating. If you aren’t using them you are crazy. We are so happy we found them. I can now say that I’ve got a HVAC guy. Thank you so much.

  marlene M.★★★★★

• Delta T is one of those special companies: responsive, knowledgeable, and trustworthy. As new a new homeowner, Dimos has helped improve my house's heating and cooling -- and educate me in the process. He explains what's happening, shares his expertise, and offers a fair and reasonable price. We're happy to work with him!

  Becca F.★★★★★

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