Heat pump systems designed around your home for reliable comfort year-round.
Cold-season performance, year-round comfort, and an install done the right way.
A complete heating and cooling solution that upgrades your existing ductwork with modern heat pump technology for consistent comfort throughout your home.
A smart hybrid heating system that blends electric heat pump efficiency with gas furnace reliability for balanced, year-round comfort.
A comfort solution designed to efficiently heat and cool a single room.
Choosing the right comfort system starts with choosing the right team. As a BPI-certified company, we understand that heat pumps perform best when they’re designed around the home. We evaluate how the home impacts comfort, efficiency, and long-term system performance, ensuring better results and a healthier living space.
Capital Heat Pumps is based in Accokeek, MD, serving homeowners across nearby communities. We built this company with a clear focus: heat pumps — modern systems that can improve comfort and efficiency when they’re chosen correctly and installed properly.
We keep the process straightforward with clear communication, clean workmanship, and solutions that fit your home. Whether you’re replacing an older system or planning a new install, our goal is simple: deliver reliable comfort you can count on, season after season.
Cire “Davey doggo” Fracker2025.11.08.Trustindex verifies that the original source of the review is Google. Fixed our furnace in a timely manner. Tasheba Hamilton2025.11.08.Trustindex verifies that the original source of the review is Google. Awesome, great service Chris Denney2025.11.06.Trustindex verifies that the original source of the review is Google. Mason was very professional and informative. He was also a good communicator and punctual. Marie Darby2025.11.01.Trustindex verifies that the original source of the review is Google. Mason's did an outstanding job installing my new boiler. They arrived on time and were very professional. Mason's kept me updated throughout the entire process. They work very neatly and ensured that I understood the operation of my new boiler system. Terri Humphries2025.10.27.Trustindex verifies that the original source of the review is Google. Fast, Reliable , and kept me updated ! Christine Gunter2025.10.23.Trustindex verifies that the original source of the review is Google. Fantastic. The young man worked with me to get an appointment that was more convenient. He was VERY knowledgeable. He explained everything to me. He was efficient and made sure everything was put back where and how he found it. I would definitely use them again. Andrew McGuire2025.10.23.Trustindex verifies that the original source of the review is Google. This HVAC repair person was exceptional! They arrived promptly, were very professional, and conducted a thorough inspection of the unit. Best of all, they gave me a great deal on the price. I highly recommend their service. Lisa Johnson2025.10.21.Trustindex verifies that the original source of the review is Google. We can’t say enough about Mason’s Air Control—truly incredible. I’m not HVAC-savvy, and I didn’t even realize what I was looking at, but Mason’s team discovered black mold in our old ducts and walked us through everything with patience and care. They removed the contaminated ductwork, installed a new furnace and central A/C split system, and set up a Wi-Fi programmable thermostat that connects to our home so we can control the temperature from anywhere. They also fully insulated the HVAC room, which we didn’t have before. Their attention to detail was next-level: punctual, respectful of our home, clear explanations at each step, and thorough cleanup. Mason has been faithful from start to finish—and beyond—with follow-through that’s so rare these days. The before-and-after photos say it all: unsafe to safe, messy to meticulous. Our system runs smoothly, and we finally have real peace of mind. Strongly recommend Mason’s Air Control. ★★★★★ Erik Wright2025.10.16.Trustindex verifies that the original source of the review is Google. I had an excellent experience with Mason.He was very thorough professional and found the problem. Anne DIGUARDO2025.10.13.Trustindex verifies that the original source of the review is Google. I was very impressed with Mason's Air Control LLC. Mason was very knowledgeable, didn't hurry, pointed out things that might make my heating/air system work to my advantage. Also took the time to explain why one room in my condo was not cooling as efficiently as the other rooms, and an affordable fix to take care of the problem. It was a pleasure having him checkout my heating system for the winter months. Thank you.
We’re based in Accokeek, MD and provide heating and cooling services across the DMV.
If you’re within a 20–30 mile radius of Accokeek, MD there’s a good chance we’ve worked on a home near you.