Best Hvac Installation in Washington DC

I have used Al's Twin Air for several years for all my HVAC needs, for my primary residence and rental property. The staff are always professional. They arrive on time, complete the job as promised. The lady in the office is excellent. When I called requesting emergency service when my air conditioner died during the extreme heat, she worked her magic (lol) to get someone to my home very quickly. I have recommended Al to all my friends. They have had the same professional experience.

Frederick was great! He fixed a Navien tankless water heater issue that had flummoxed two other plumbers. Next, he fixed the HVAC wiring to our Nest thermostat which one other electrician and one Nest technician could not figure out. In short, in one afternoon he fixed issues that four other professionals could not. If you have a Navien issue, call Charles & Sons first. If you want a problem solver ask for Frederick.

Limbert is very professional and extraordinarily trustworthy. He is my go to guy for all our plumbing needs.

Carlos Reed provided excellent service and discussed thoughtful recommendations for the unit. Appreciated his information.
Sila is my HVAC provider and I’ve gotten great service over the years. Keep it up!!

Ephrem was wonderful, quick and definitely knew what he was doing. Awesome work! Will definitely use again!

I got my HVAC system repaired by them and they were very thoughtful and open with questions. I can't say the same with other companies who tried to overcharge.

Highly recommend. When my HVAC died I called three companies for estimates. The first (Gary Frank Heating and Cooling) never showed for their appointment. The second (John C. Flood) showed on time but asked an obscene $11.6k for a new HVAC unit. The third (Jimmy Gusky) showed on time and quoted me $4k less than John C. Flood for a comparable unit. So if you’re looking for an honest business to replace your HVAC or heat pump, this is it.

I paid them 49$ for an estimate. 6 days later that still have not provided an estimate and are not refunding my money. I called them 5 times over the 6 days and they repeatedly told me estimates take 24-48 hours… 148 hours later still no estimate or refund. Don’t waste your time calling them. If I could give negative stars I would.

They the job professionally and quickly. Will definitely call on them again.