Whether your system quit overnight or you've been limping along hoping it'd fix itself, FH HVAC sends a licensed technician to your Old Lyme, CT address fast — with a written quote and the parts to finish the job.

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 understand the local building stock, the climate demands specific to this area, and the brands most prevalent in Old Lyme, CT homes and businesses.
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. Simple, consistent, and we've held to it since day one.
All six of these services are available in Old Lyme, CT, performed by CT-licensed technicians, backed by our written guarantee.
Your system quit in Old Lyme, CT and you need someone right now — not a callback. Calling +1-844-586-3138 connects you to a live Old Lyme, CT dispatcher immediately. We dispatch the nearest available tech and confirm arrival time before the call ends. Our trucks carry the most common repair parts for Old Lyme, CT's prevalent HVAC systems, so first-visit fixes are the norm.. 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. We never guess system size in Old Lyme, CT. Every new installation starts with a Manual J load calculation. 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.
Book Old Lyme, CT Home Visit: +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. We work around your schedule.
Commercial HVAC in Old Lyme, CT: +1-844-586-3138 →Your air quality in Old Lyme, CT is shaped by local climate factors that shift across the seasons. FH HVAC installs and services HEPA filtration upgrades, whole-home UV germicidal systems, dehumidifiers and ERVs configured for Old Lyme, CT's specific conditions. 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. The plan covers two annual tune-ups, refrigerant checks, electrical inspection, coil cleaning, priority scheduling, and a 15% parts and labor discount year-round. The avoided emergencies alone usually justify the plan within the first season.
Old Lyme, CT Service Plan Details: +1-844-586-3138 →


No surprises. No mystery. This is exactly what happens when you call FH HVAC in Old Lyme, CT.
A live dispatcher answers in Old Lyme, CT — day or night, weekends, holidays. Your location is logged and dispatch starts immediately.
The nearest CT-licensed technician is routed to your address. Your ETA is confirmed before you hang up — average is under 60 minutes in most Old Lyme, CT locations.
You get the full price in writing before anything starts. No surprises after the work is done.
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.
Stated as policies, not promises — because promises without systems are just marketing.
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. Even when everyone's calling in Old Lyme, CT, we maintain sub-60-minute response in most locations.
Active CT license. General liability. Workers' comp. NATE certification. 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. Dispatch is confirmed, not promised.
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.
"In Old Lyme, CT on a July weekend with no AC, I expected a two-day wait. FH HVAC had a tech there in under an hour. Same-day fix, exact quoted price. Nothing like I've experienced with other contractors."
"Our Old Lyme, CT shop HVAC died during our busiest week. FH HVAC commercial team showed up fast, diagnosed accurately, had the part on the truck. Back to normal temperature before it cost us customers. Honest pricing on top of everything."
"I've been a FH HVAC maintenance plan member in Old Lyme, CT for two years. The spring visit caught a developing refrigerant leak in the evaporator coil and fixed it at the tune-up discount. That avoided what would have been an emergency call in August when it finally failed — and August emergency rates are not fun.

Don't sit with a broken system in Old Lyme, CT waiting on a callback that may or may not come. Call +1-844-586-3138 right now and speak to a live dispatcher who will get a licensed tech to your door fast.
📞 +1-844-586-3138 — Hvac in Old Lyme, CT, 24/7