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.
Every tech FH HVAC dispatches in Old Lyme, CT is locally positioned, CT licensed, NATE certified, and EPA 608 credentialed. 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. 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 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 →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. We work around your schedule.
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, dehumidifiers and ERVs configured for Old Lyme, CT's specific conditions. The impact on respiratory health is measurable and consistent for households that make this upgrade.
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. When you're adding conditioned space in Old Lyme, CT without an existing duct system, ductless is usually the cleanest solution. 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. 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. Members frequently tell us the plan paid for itself on the first avoided repair.
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.
You get the full price in writing before anything starts. Nothing begins until you've reviewed and approved it.
The job gets done right and backed by a 90-day parts and labor guarantee. If it fails within the window, we come back at no charge.
These are operating standards, not taglines.
Verbal quotes are how Old Lyme, CT customers end up with invoices they didn't agree to. Every Old Lyme, CT job starts with a written, itemized quote you sign before work begins.
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. The guarantee appears on your invoice because verbal assurances aren't guarantees.
We staff live dispatchers around the clock in Old Lyme, CT specifically because HVAC emergencies don't ask permission. Dispatch is confirmed, not promised.
Old Lyme, CT maintenance plan customers have dedicated scheduling that doesn't share the general queue. Plus 15% off parts and labor on any repairs caught at service visits.
"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."

You shouldn't have to wait days for Hvac Installation service in Old Lyme, CT. Call +1-844-586-3138 and get a real ETA within minutes.
📞 +1-844-586-3138 — Hvac Installation in Old Lyme, CT, 24/7