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.

The typical HVAC experience in Old Lyme, CT involves waiting, vague estimates, and invoices that don't match what you were told over the phone. FH HVAC is built to be the opposite of that.
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.
Our written quote comes before work starts. Our 90-day guarantee is on every 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 first-visit fixes are the norm.. Your written quote comes before we start — always.
Old Lyme, CT Emergency Dispatch: +1-844-586-3138 →Whether you're replacing a system that finally gave up or dealing with a specific repair in your Old Lyme, CT home, the approach is the same. 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. Getting this wrong means a system that cycles constantly and fails years ahead of schedule. 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. Our commercial jobs are coordinated around your operating hours.
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, 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.
Old Lyme, CT Indoor Air Quality: +1-844-586-3138 →Heat pump and ductless mini-split installations in Old Lyme, CT have picked up significantly as homeowners see the efficiency and dual-season benefits. 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 can handle everything from initial installation through refrigerant service and annual performance checks.
Old Lyme, CT Ductless & Heat Pump: +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. Members frequently tell us the plan paid for itself on the first avoided repair.
Maintenance Plan in Old Lyme, CT: +1-844-586-3138 →


No surprises. No mystery. This is exactly what happens when you call 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.
You get the full price in writing before anything starts. No surprises after the work is done.
Completed and covered — 90 days on parts and labor, documented on your invoice. If it fails within the window, we come back at no charge.
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.
Proximity to Old Lyme, CT is intentional, not accidental. Even when everyone's calling in Old Lyme, CT, we maintain sub-60-minute response in most locations.
Old Lyme, CT licensing, liability coverage, NATE cert, EPA 608. All current, all on file, all available to review before any job starts in Old Lyme, CT.
If a repair we did in Old Lyme, CT fails within 90 days, we return and fix it at no charge. The guarantee appears on your invoice because verbal assurances aren't guarantees.
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."
"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."

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