Heating & AC Repair in Winchester, VA

When your furnace or heat pump stops heating, call our Winchester office and a technician will find the cause and explain what failed and what the repair will cost. Most no-heat calls come down to one failed part, such as an igniter, flame sensor, capacitor or control board. We repair furnaces, heat pumps and dual-fuel systems on all makes and models. If your system is running but short cycling, making new noises or leaving some rooms cold, call before it quits. A part caught early is a smaller bill than a breakdown on the coldest night of the year. Read more about furnace and heat pump repair.

“Heat went out on a Friday morning when it was very cold, they made it out same day and fixed the problem within an hour!”
Nathaniel J., Google review

Yes, if it’s a cold-climate model sized for the house, and that’s what we recommend on most heat pump installations in Winchester. HVAC systems are sized for a local design temperature, the cold mark a system should handle without help, and Winchester’s is 15°F. Cold-climate heat pumps such as Mitsubishi’s hyper-heating models keep full heating capacity down to 5°F, ten degrees below that mark, so they can carry a home through a normal Winchester winter without leaning on backup heat strips. A standard heat pump loses capacity as the temperature drops and switches to the strips, which cost a lot more to run. If you’re replacing a heat pump, ask which kind you’re being quoted. If your house has gas, a dual-fuel system pairs a heat pump with a gas furnace for the coldest days. Learn more about heat pump installation and repair.

“Mountain Valley again lived up to expectation for its speedy response when the relay on my heat pump failed just days before severe cold and heavy snow is due.”
David E., Google review

Our Winchester technicians repair central air conditioners, heat pumps in cooling mode and ductless units, on all makes and models. The usual problems are warm air from the vents, an outdoor unit that won’t start, ice on the refrigerant lines, water around the indoor unit, and a system that runs all afternoon without catching up. Many of these trace to a weak capacitor, a clogged drain line or low refrigerant from a leak, and the technician will tell you which before quoting the repair. Read more about air conditioning repair.

Ductless mini-splits heat and cool a room or addition without ductwork, which suits older Winchester homes with no ducts, finished basements and rooms the central system doesn’t reach. As a Mitsubishi Electric Elite Diamond Contractor, we install single-zone and multi-zone systems and maintain and repair them after. For homes with a geothermal system, our technicians maintain and repair those too. See ductless installation, ductless repair and geothermal service.

“Thanks to the Mountain Valley Home Comfort crew for the professional 3 head mini-split installation, One day in-and-out!”
Alan W., Google review

Is there a charge for a service call?
Yes. Each repair visit has a dispatch fee, and visits after hours or on weekends cost more. Home Comfort Club members get $20 off the regular fee and $30 off after hours.

Can I get a rebate on a heat pump in Virginia?
A few, depending on your electric company. The federal tax credit for heat pumps and furnaces ended for systems installed after 2025, and Virginia’s state home energy rebates are still waiting on federal approval, with no launch date. Dominion Energy customers can book a Home Energy Evaluation, and income-qualifying households may get upgrades, including electric HVAC systems, at no cost. Shenandoah Valley Electric Cooperative has no equipment rebate. Check with your utility before you sign, because some programs require approval first.