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.
Every tech FH HVAC dispatches in Old Lyme, CT is locally positioned, CT licensed, NATE certified, and EPA 608 credentialed. 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.
Every service below is on the table for Old Lyme, CT — licensed, insured, guaranteed.
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.
Emergency Line in Old Lyme, CT: +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. For any new installation, we do a proper Manual J load calculation — something many Old Lyme, CT contractors skip to save time and cost. Getting this wrong means a system that cycles constantly and fails years ahead of schedule. 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. Depending on your industry, it can mean health code violations, cancelled appointments, or closed doors. 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. The impact on respiratory health is measurable and consistent for households that make this upgrade.
Air Quality Service in Old Lyme, CT: +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.
Heat Pump Service in Old Lyme, CT: +1-844-586-3138 →Maintenance plan members in Old Lyme, CT consistently have fewer emergency calls than comparable non-plan households. 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.
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.
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.
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.
Stated as policies, not promises — because promises without systems are just marketing.
We don't quote jobs verbally in Old Lyme, CT. Every Old Lyme, CT job starts with a written, itemized quote you sign before work begins.
Proximity to Old Lyme, CT is intentional, not accidental. Average on-site time in this market is under 60 minutes, including during peak summer and winter demand.
Active CT license. General liability. Workers' comp. NATE certification. EPA 608. All current, all on file, all available to review before any job starts in Old Lyme, CT.
90 days. Parts and labor. No argument. 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 15% off parts and labor on any repairs caught at service visits.
"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."
"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 service in Old Lyme, CT. Call +1-844-586-3138 and get a real ETA within minutes.
📞 +1-844-586-3138 — Hvac in Old Lyme, CT, 24/7