Mann-In

Name: Mann-In
Address: 14700 Flint Lee Rd #F, Chantilly, VA, 20151, US
Telephone: 703-263-1200
Price range: $
Rating: 5.0

14700 Flint Lee Rd #F
Chantilly, VA 20151 703-263-1200

Checkbook's Top Rating
Quality
Price

394 ratings
96% gave a "superior" overall rating
- Prices 17% lower than average
Compare 194 nearby heating & air-conditioning contractors
"The AC system at my daughter's townhouse failed in August early of this year. The existing AC system..."
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Prices for Mann-In

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Consumer Ratings for Mann-In — 394 Ratings

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Complaints for Mann-In

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Areas Served by Mann-In:

Arlington Co.
Fairfax Co.
Loudoun Co.
Prince William Co.

Equipment company services/installs:

Humidifiers
Air ducts (sheet metal work)
Central air conditioners
Electric furnaces
Gas furnaces

Electronic air cleaners
Heat pumps

Consumer Comments for Mann-In

Consumer from FAIRFAX, VA
Sep 01, 2024

The AC system at my daughter's townhouse failed in August early of this year. The existing AC system was 20 years old and the gas heating system was 14 years old so it was best to completely replace the whole system. I found Mann-In from the Consumer Checkbook listing and they were rated very well for quality and price. Mann-In was able to replace it within 3 weeks which was very reasonable considering the hot summer. They offered to provide window air conditioners while we waiting for the replacement. However, I already had a unit for my daughter to use. They provided a very good suggestion to add a return duct in the basement family room to provide better circulation which I added to the scope of work. They replaced the return duct so that the air filter could be easily replaced. The cost was reasonable considering prices for materials and labor have increased significantly in the last few years. The system works great!

Consumer from ALEXANDRIA, VA
Aug 31, 2024

Installed gas water heater, without County-mandated permit, even though a specific contract line item identified them to handle it; they didn't see that as a problem, given a future Gas Furnace install would be placed on the same permit. 13VAC5-63-80. Section 108 is the governing doc. Failure violated safety/personal welfare, placing home insurance coverage at risk, because work being done on gas-fired appliance without county approval. No perceived remorse for failure. Gave incorrect tech data several times, e.g., must install a 240-volt breaker, when a Gas Furnace has no need for it. Had to ask the crew to sweep up the mess left on the floor. Cancelled rest of contract & later found a superior HVAC contractor near me.

Consumer from FALLS CHURCH, VA
Jun 29, 2024

We're absolutely over the moon about our Carrier system that we recently purchased from and had installed by Mann-In. Our house is dry all the time now because the variable speed heat pump’s built-in dehumidifier is super effective. The humidity now never gets above 50%, which is what we set it to achieve. Who knew 75F was so cool? The house is nice and cool all the time, but not uncomfortably so because it’s dry air. The system’s fan only needs to run on low all the time to maintain the temp, too, no matter the temp outside. And it's completely quiet in the house now. No sound of the fan running or forced air thru the ducts. When the system was first installed, it needed to be tweaked to eliminate fan resonance at super low speed but that was it. We'll see how it sounds in the winter when the furnace kicks in, but I can honestly say the heat pump is totally quiet. You can practically hear a pin drop in the house now. The heat pump outside is also completely soundless. No more loud thrumming outdoors when the AC compressor kicked on. We purchased the “Infinity Series” High-Efficiency Two-Stage Gas Valve Furnace with the “Infinity / Greenspeed” Variable-Speed Heat Pump and AprilAire filter. This one continually monitors the indoor and outdoor temp and varies the cooling and fan speed as needed to keep the house at a steady temp. Because it’s so efficient, the fan runs at a very low speed We run the it all the time to mix the upstairs and downstairs air and keep both levels more similar in terms of temp. The furnace is direct vent (outside air comes into it thru the wall next to the furnace and is vented to same, so it never pulls air from inside the house). We carefully researched which heat pump would give us the tax incentive (John looked up the qualifying specs on the Feds websites) and variable speed heat pump was the only one. The lower end heat pump models did not qualify for it. The price was reduced by rebates and because Carrier was offering a summer Sale on its heat pump systems. By the time we added up the tax incentive and the rebate and sale savings, the system was only $1K more than a comparable traditional system (90% efficiency furnace and traditional AC with dehumidifier and high capacity (AprilAire) air filter). Qualifying heat pumps by competitor vendors were more expensive and didn’t look to be any better than Carrier, which is a very solid brand. We went with Mann-In, because their estimator Aaron Gagnon was the only one who took the time to thoroughly assess our house’s load and configuration needs and was highly professional and patient with our questions and requests for options, quotes, and modifications to the proposal. When it came time to install the system, the technicians did a terrific job of taking out the old system in the house and compressor outside, removing the old cement pad outside that the compressor had sat on and pouring a new one for the heat pump, drilling holes thru the cinder block wall to the outside to install the direct vents (2) and then sealing them up from the outside, installing and fine tuning the heat pump and furnace, retrofitting the ducting to fit the new system, and leaving the room pristine when done. They also installed the system thermostat. At the end of the day the owner of the company, Dan Fols, fired up both the heat pump and furnace to test them, set up the thermostat to our requested temps, and showed us how to work the thermostat. He also fine-tuned the fan to eliminate the resonance. Depending on the size of your house and volume of air the fan is pushing thru the system at low speed, the fan may or may not develop the resonance. In our case and one other customer’s, it did. Dan took care of it right away. Mann-In’s customer service and professionalism were very impressive. And, last but not least, they were the least expensive. They offered us the lowest quote and the most system for the money. I can’t recommend Mann-In highly enough.

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