Need Heating or Cooling Help in Keene, NH?

Call (603) 499-5264 or request service online. Serving Keene and southern New Hampshire.

✓ Licensed & Insured    ✓ EPA 608 Certified
✓ Financing Available    ✓ Locally Owned in Keene

Capital HVAC services: furnace and boiler heating, air conditioning, heat pumps and maintenance plans

Cooling for Hot, Humid Summers

Central AC and ductless mini-splits installed, repaired and tuned up, so your home is ready before the first heat wave.

Central Air Conditioning – Installs, replacements and repairs
Ductless Mini-Splits – Quiet cooling without ductwork
Spring AC Tune-Ups – Ready before the heat hits
Emergency AC Repair – Fast help on hot days

Ductless mini-split heat pumps installed on a New Hampshire home by Capital HVAC

Heating Built for New England Winters

Gas, oil and propane furnaces and boilers, plus cold-climate heat pumps, sized to your home so you stay warm through the coldest nights and spend less on fuel.

Furnaces & Boilers – Gas, oil and propane repairs and installs
Cold-Climate Heat Pumps – Efficient heat on sub-zero nights
Fall Tune-Ups – Catch problems before the cold
No-Heat Repairs – Fast response when the heat goes out

Bright living room with a wall-mounted ductless mini-split

Cleaner Air, Every Season

Humidifiers, dehumidifiers, air purifiers and filtration that work with your heating and cooling system to keep the air in your home clean all year.

Whole-House Humidifiers – Relief from dry winter air
Dehumidifiers – Control summer humidity and basement mildew
Air Purifiers & Filtration – Trap pollen, dust and pet dander
Fresh-Air Ventilation – Clean air without losing heat

Technician servicing a boiler during a seasonal tune-up

Seasonal Maintenance for New England Homes

A tune-up before each season catches small problems early, before your furnace quits on a January night or your AC fails in a July heat wave.

Fall Heating Tune-Up – Furnace, boiler and heat pump checks
Spring Cooling Tune-Up – AC and mini-split cleaning and testing
Safety Checks – Carbon monoxide, gas connections and venting
Maintenance Plans – Two visits a year with priority scheduling

Trusted Brands, Rebates & Financing

We install and service quality equipment from Mitsubishi, Rheem, Rinnai, Custom Comfort and Goodman, and we help you make a new system more affordable.

Mitsubishi Electric, Rheem, Goodman and Rinnai heating and cooling equipment installed by Capital HVAC

Brands We Trust

Equipment from Mitsubishi, Rheem, Rinnai, Custom Comfort and Goodman, installed and serviced by a licensed, experienced technician.

Rebates

Upgrading to a heat pump or high-efficiency system? Ask us about NHSaves and utility rebates that may lower your cost.

See current rebates →

Financing

Financing is available on new furnaces, boilers, heat pumps and AC systems, so you can stay comfortable without paying it all up front.

Worked With Us? Leave a Review

Capital HVAC is a new, locally owned company, and reviews from neighbors help other New Hampshire homeowners find us. If we have helped keep your home comfortable, we would be grateful if you shared your experience.

Contact Capital HVAC in Keene, NH

189 Pako Ave
Keene, NH 03431

Opening Hours

Mon - Fri: 7am - 5pm
Sat - Sun: Closed

Contact

(603) 499-5264

info@capitalhvac.org

Committed to your comfort

Capital HVAC was built on the core values of transparent pricing, reliable service, and technical excellence. Whether you need a quick repair or a new climate control installation, our team is ready to serve you.

Heating & AC FAQs for Keene, NH Homeowners

Have questions about your heating or cooling equipment? Find quick answers to common queries regarding repairs, maintenance schedules, and our HVAC services.

How often should I have my HVAC system serviced?

We recommend servicing your system twice a year: a heating tune-up in the fall and an air conditioning check in the spring to keep systems running smoothly and prevent unexpected breakdowns.

What areas in New Hampshire do you serve?

We're based in Keene, NH and serve homeowners across Cheshire County and southern New Hampshire, including Swanzey, Marlborough, Walpole, Winchester, Hinsdale, Jaffrey, Rindge, Fitzwilliam, Peterborough and the Monadnock region. Not sure if you're in our area? Give us a call at (603) 499-5264.

How do I know if my system needs repair or replacement?

If your system is over 10-15 years old, requires frequent repairs, makes strange noises, or causes high energy bills, a modern high-efficiency upgrade may be more cost-effective than another repair.

Do you offer emergency HVAC repairs?

Yes, we prioritize urgent heating and cooling failures to ensure your home remains safe and comfortable, especially during extreme temperature drops or heatwaves.

Calling after hours or on a Sunday? Leave a message with your name, town and what's going on, and we'll call you back as soon as possible. If you smell gas, leave the house right away and call your gas company or 911 first.

Can you install smart thermostats?

Absolutely. We install and configure smart thermostats that help automate your indoor comfort, monitor performance, and lower monthly energy costs.

How can I book an appointment?

Call us at (603) 499-5264, email info@capitalhvac.org, or fill out the request form on our Contact page. We will get back to you quickly to set up a time that works for you. For no-heat emergencies, please call.