"Excellent service all around. Called, answered promptly, got a fixed-price quote for cleaning our 3000 sq ft two-zone heated home built in 1959 and likely not cleaned since it was built. Competitors were much more vague about services and pricing and generally were "we can come out and charge you depending on the setup...". They explained clearly what they were going to do, how long it would take, and what results we could expect. Called ahead to check that we were home and suggested clearance of area around vents to ensure no breakage. Arrived promptly and on schedule. Put on booties before entering home. Were clear about work to be done, rough timing, and access needed. Set up large vacuum unit in backyard and large hoses through basement window, along with several agitator lines to clean each vent. Removed all vents (supply and return, about 30), cleaned them all, replaced them all correctly. Cut two access holes in ducts where necessary due to our ducting setup and patched. Vacuumed around all work areas. Cleaned out vents, which they informed us had gravel and tile (!) in them from a previous renovation. Promised four hours, took 3.5. Was noisy but not unreasonable given work performed. Outstanding and professional service. $500 total for a complex job, billed as promised. Would recommend highly."

"Porterhouse Heating and Cooling was very professional and knowledgeable on the service provided. I used them to install my air conditioner unit. Eventhough, the unit was not my issue, they still came out and was able to find the issue and fix it. They were friendly, professional, and reasonably priced. I will definitely use again for any of my HVAC concerns."

"Had a major problem with my rug. The vacuum cleaner belt broke and melted. I had black spots all over my rug. He came over on a Saturday spent a lot of time and did a great job."

"JML did a great job replacing a cracked portion of a condensate line in my attic. The cracked PVC was up in the attic which is in a tight spot. Derek showed up the next day after I called and went up into the attic found the crack and replaced the pipe in a hour. There was only professionalism from him despite having to be in a hot tight attic digging through insulation for a hour replacing this condensate line. I would definitely hire this company again for any HVAC / Water Heater needs."

"Within a year it went out and they fixed it. I had mice that ate the insulation. They were able to make a connection and did not charge me for this even though they could have."

"Went okay. Based on some of my past tuneups, I felt like the tech could have done a little more. For example, tech had no vacuum to clean the bottom of inside the furnace. I am not sure he did any cleaning of the INSIDE of my central air unit either, but he did a great job using the hose to clean the side vents, etc., with the garden hose. Also not sure if he ever used that device with the hoses and gauge usually used to check pressure or is it Freon? For $89.95 for each (central air and furnace), I expect a super thorough job. I can’t get around these tuneups or I will void my warranty. I want to feel uber confident I am getting my moneys worth. Tech was super nice and very professional!"

"For DC/ Northern VA: Best price in the area. Very methodical, evaluated the ducts as he worked, very knowledgeable. Dryer duct cleaned as well. Showed up 2 hrs late, so ensure you have a full day for the job to be completed."

"The repair technician diagnosed the issue right away. A bit pricey but worth it."

"He was a good electrician. Did some troubleshooting to find the problem and then resolved it. Light fixture works perfectly. The only issue was the price for repair was much higher than I expected. He told me he added a service call to the charge."

"Daniel is knowledgeable, professional and personable. We were very satisfied with the service. He was able to schedule us quickly, arrived on time and finished the repair same day. His ability to assess and explain the issues as well as how he can resolve them was clear and concise; definitely appreciated the attention to detail. I strongly recommend his services."