The question isn't whether you need Furnace Repair service in Amherst, NH — it's which contractor you trust to do it right. FH HVAC's answer: a written quote before we start, a NH-licensed technician at your door fast, and a 90-day guarantee documented on every invoice.

If you've dealt with contractors in Amherst, NH who gave you a verbal estimate and handed you an invoice that didn't match — or sent someone who clearly wasn't NH licensed — you know exactly why the bar feels low in this market.
When you call FH HVAC in Amherst, NH, you get a NH-licensed technician with NATE certification and EPA 608 credentials. Your quote is in writing before we start. Your guarantee is on your invoice. Call +1-844-586-3138 and a live dispatcher picks up — day or night, weekend or holiday.

All six services are available in Amherst, NH — performed by NH-licensed technicians and backed by written pricing and our 90-day guarantee.
System failure in Amherst, NH doesn't wait for business hours. A live dispatcher at +1-844-586-3138 routes the nearest NH-licensed tech to your location and gives you an ETA before you hang up. Most Amherst, NH emergency calls resolve on the first visit. Written quote before we start — always.
Emergency line in Amherst, NHFrom a full system replacement to a targeted repair in your Amherst, NH home, our residential technicians don't guess system size. Every installation starts with a proper Manual J load calculation — the step that prevents the common mistake of oversizing, which causes short-cycling and early system failure. All NH permits pulled. Parts and labor both warranted.
Schedule Amherst, NH home serviceA failed HVAC system in your Amherst, NH office, retail location, or commercial facility means real money lost. Our commercial team handles rooftop units, large split systems, VRF and chiller work across Amherst, NH — coordinated around your operating hours to minimize disruption. Priority response for commercial service agreement clients.
Commercial HVAC in Amherst, NHIndoor air quality in Amherst, NH is affected by the specific seasonal conditions here — humidity patterns, allergen load, and how airtight homes tend to be in this climate. We install HEPA filtration upgrades, UV germicidal systems, dehumidifiers, humidifiers, and ERVs configured for this region's conditions. Most impactful for households managing asthma or recurring respiratory conditions.
Indoor air quality: +1-844-586-3138More Amherst, NH homeowners are choosing heat pumps and ductless systems for additions, garages, and conversions where running ductwork through existing walls isn't practical. Our Amherst, NH technicians are factory-trained on all major brands — Mitsubishi, Daikin, Fujitsu, LG, Bosch — and handle everything from initial installation through refrigerant service.
Ductless install: +1-844-586-3138Consistent preventive maintenance is the single biggest factor in how long an HVAC system lasts — and most Amherst, NH homeowners underinvest in it. Our Amherst, NH maintenance plan includes two full tune-ups per year, priority scheduling during peak season, a 15% discount on any repair parts and labor, and a written condition report after every visit.
Maintenance plan in Amherst, NHFour steps. No surprises. That's the whole model.
Real person answers. Not voicemail. Dispatch starts immediately from a position close to Amherst, NH.
The nearest NH-licensed technician is routed to your Amherst, NH address. Background-checked, NATE certified, EPA 608 credentialed.
After diagnosing your system in Amherst, NH, your technician hands you a written, itemized quote. The number you sign is the number on your invoice. We never add charges after work is complete.
90 days, parts and labor, documented. If it fails within the window, we return at no charge.
These are the operating commitments behind every Amherst, NH job. Verifiable. Documented.
What you approve is what you pay. Always. No post-job surprises in Amherst, NH.
NH license, general liability, and workers' comp — all current, all documented, available on request for any Amherst, NH job.
Regional technician positioning throughout Amherst, NH keeps response times under 60 minutes in most markets — including during peak summer and winter demand.
The guarantee is on the invoice. 90 days, parts and labor. Not a handshake — a documented commitment.
Calling +1-844-586-3138 at 2 AM in Amherst, NH gets a person who routes a technician immediately.
"I asked for proof of NH licensing before letting anyone in. Two contractors couldn't produce it. FH HVAC sent documentation in under two minutes."
— Verified customer, Amherst, NH"Called FH HVAC in Amherst, NH on a Saturday afternoon, had a tech at the door in under an hour, written quote before they started, invoice matched the quote exactly. I've never had an easier contractor experience in Amherst, NH."
"Our business in Amherst, NH had an HVAC failure during a client event. I didn't think anyone would respond that fast on a Friday evening. FH HVAC had a commercial technician there in 50 minutes, diagnosed and fixed within two hours. Nothing we planned had to be cancelled."
"Two years on the maintenance plan in Amherst, NH. At the spring tune-up this year they found a slow refrigerant leak in my evaporator coil. Caught and fixed at the maintenance pricing. That would have been an emergency call in August at double the cost."

FH HVAC covers all of Amherst, NH with licensed technicians, written upfront pricing, and live 24/7 dispatch. One call. Real ETA. No runaround.
📞 +1-844-586-3138 — Furnace Repair in Amherst, NH