A broken HVAC system in Old Lyme, CT isn't a someday problem. FH HVAC dispatches a certified local tech with upfront pricing and a real ETA within minutes of your call.

If you've ever called an HVAC company in Old Lyme, CT and gotten a runaround about pricing, availability, or what's actually wrong with your system, you know exactly why we built FH HVAC the way we did.
Our Old Lyme, CT technicians are dispatched from positions close to your neighborhood, hold active CT contractor licenses, and carry NATE certification and EPA 608 credentials. They know the HVAC systems common in this market and the seasonal patterns that cause the specific failures we see most often in Old Lyme, CT.
Before we touch anything, you get a written quote. When the job is done, you get a 90-day parts and labor guarantee — documented on the invoice. That's the whole system. It works because it's simple and we actually follow it.
All six of these services are available in Old Lyme, CT, performed by CT-licensed technicians, backed by our written guarantee.
If your HVAC system just stopped working in Old Lyme, CT, you don't have time for voicemail or a 48-hour wait list. Calling +1-844-586-3138 connects you to a live Old Lyme, CT dispatcher immediately. A licensed technician gets rolling toward your address with an ETA before you hang up. Our trucks carry the most common repair parts for Old Lyme, CT's prevalent HVAC systems, so we resolve most Old Lyme, CT emergency calls without a return trip. Your written quote comes before we start — always.
Old Lyme, CT Emergency Dispatch: +1-844-586-3138 →From a full new installation in your Old Lyme, CT home to a targeted repair on an older system, our residential team brings the right tools and the right knowledge of the systems common in this market. For any new installation, we do a proper Manual J load calculation — something many Old Lyme, CT contractors skip to save time and cost. Skip it and you end up with an oversized system that short-cycles and wears out early. All major brands serviced. All CT permits handled.
Old Lyme, CT Home Service: +1-844-586-3138 →For businesses in Old Lyme, CT, HVAC failure means more than discomfort. In food service, it can mean health code complications. In offices, it means people can't work. FH HVAC's commercial team handles rooftop units, large split systems, VRF and chiller work, and ongoing maintenance agreements for commercial properties throughout Old Lyme, CT. Our commercial jobs are coordinated around your operating hours.
Commercial HVAC in Old Lyme, CT: +1-844-586-3138 →Old Lyme, CT residents deal with indoor air quality challenges that depend on the season — high humidity in summer, dry air in winter, allergens and dust year-round. FH HVAC installs and services HEPA filtration upgrades, whole-home UV germicidal systems, humidity control equipment, and energy recovery ventilators sized for this climate. If someone in your Old Lyme, CT household manages asthma or allergies, improving indoor air quality is one of the most direct improvements available.
Air Quality Service in Old Lyme, CT: +1-844-586-3138 →More Old Lyme, CT homeowners are choosing heat pumps and ductless systems for their versatility and long-term efficiency. For additions, garages, and converted spaces in Old Lyme, CT where ductwork would mean opening walls, ductless is typically the right call. Our technicians are factory-trained on all major brands and service everything from installation to seasonal efficiency verification.
Heat Pump Service in Old Lyme, CT: +1-844-586-3138 →The Old Lyme, CT maintenance plan customers who call us least often aren't the ones with the newest systems — they're the ones who get tuned up twice a year. Two full tune-ups per year, priority scheduling when the season peaks and wait times go long, a 15% discount on any repair parts and labor, and a written condition report after every visit. The avoided emergencies alone usually justify the plan within the first season.
Old Lyme, CT Service Plan Details: +1-844-586-3138 →


From your first call to a fixed system — here's what to expect from FH HVAC in Old Lyme, CT.
Real person. Real-time. Not a bot or a callback queue. Your location is logged and dispatch starts immediately.
The nearest CT-licensed technician is routed to your address. Most Old Lyme, CT customers have a tech on-site in under an hour.
After diagnosis, your Old Lyme, CT technician hands you a written, itemized quote. Nothing begins until you've reviewed and approved it.
The job gets done right and backed by a 90-day parts and labor guarantee. Call us back within 90 days for any covered issue and we return free.
These are operating standards, not taglines.
We don't quote jobs verbally in Old Lyme, CT. Your approved written quote is your guaranteed price in Old Lyme, CT — no exceptions.
Our technicians are staged near Old Lyme, CT — not routed from a central depot an hour out. Average on-site time in this market is under 60 minutes, including during peak summer and winter demand.
Old Lyme, CT licensing, liability coverage, NATE cert, EPA 608. Documentation available before any Old Lyme, CT job.
If a repair we did in Old Lyme, CT fails within 90 days, we return and fix it at no charge. It's on the invoice because a promise without documentation isn't worth much.
Calling +1-844-586-3138 at 2 AM in Old Lyme, CT gets a person, not a machine. Your ETA is confirmed before the call ends.
When demand peaks in Old Lyme, CT and general wait times stretch out, plan members have reserved slots. Plus a 15% discount on any repair parts and labor, all year.
"Called FH HVAC in Old Lyme, CT on a Saturday with a broken AC in summer weather. Had a real person immediately, tech was at the door in 52 minutes, had the part on the truck, and fixed it that afternoon. Invoice matched the quote exactly. Genuinely the best HVAC service call I've had in years of homeownership."
"We run a small retail shop in Old Lyme, CT and our HVAC went down on a Tuesday during a sale event. FH HVAC had a commercial tech there within the hour, the issue was a failed contactor, and we were back to normal temperature before we lost foot traffic. The price was exactly what they said. Five stars, no question."
"Two years on the FH HVAC maintenance plan in Old Lyme, CT. They caught a slow refrigerant leak at the spring tune-up. That one catch saved me an August emergency repair at full price. The plan has been worth it three times over."

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