A broken HVAC system in Sullivan, WI 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 Sullivan, WI 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 Sullivan, WI is locally positioned, WI 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 Sullivan, WI 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 Sullivan, WI — licensed, insured, guaranteed.
If your HVAC system just stopped working in Sullivan, WI, you don't have time for voicemail or a 48-hour wait list. Calling +1-844-586-3138 connects you to a live Sullivan, WI 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 Sullivan, WI's prevalent HVAC systems, so first-visit fixes are the norm.. Your written quote comes before we start — always.
Emergency Line in Sullivan, WI: +1-844-586-3138 →Whether you're replacing a system that finally gave up or dealing with a specific repair in your Sullivan, WI 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 Sullivan, WI. 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 WI permits handled.
Sullivan, WI Home Service: +1-844-586-3138 →A broken HVAC system in your Sullivan, WI office, restaurant, or retail space translates directly to lost productivity or lost revenue. 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 Sullivan, WI. We work around your schedule.
Sullivan, WI Commercial Service: +1-844-586-3138 →Your air quality in Sullivan, WI 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 Sullivan, WI's specific conditions. If someone in your Sullivan, WI household manages asthma or allergies, improving indoor air quality is one of the most direct improvements available.
Air Quality Service in Sullivan, WI: +1-844-586-3138 →Heat pump and ductless mini-split installations in Sullivan, WI have picked up significantly as homeowners see the efficiency and dual-season benefits. For additions, garages, and converted spaces in Sullivan, WI 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.
Sullivan, WI Ductless & Heat Pump: +1-844-586-3138 →The Sullivan, WI 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.
Maintenance Plan in Sullivan, WI: +1-844-586-3138 →


From your first call to a fixed system — here's what to expect from FH HVAC in Sullivan, WI.
A live dispatcher answers in Sullivan, WI — day or night, weekends, holidays. Your location is logged and dispatch starts immediately.
We route the closest available tech in Sullivan, WI. Most Sullivan, WI 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.
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 Sullivan, WI. Every Sullivan, WI job starts with a written, itemized quote you sign before work begins.
Our technicians are staged near Sullivan, WI — not routed from a central depot an hour out. Even when everyone's calling in Sullivan, WI, we maintain sub-60-minute response in most locations.
Sullivan, WI licensing, liability coverage, NATE cert, EPA 608. All current, all on file, all available to review before any job starts in Sullivan, WI.
If a repair we did in Sullivan, WI 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 Sullivan, WI specifically because HVAC emergencies don't ask permission. Your ETA is confirmed before the call ends.
When demand peaks in Sullivan, WI 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 Sullivan, WI 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 Sullivan, WI 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 Sullivan, WI 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 Sullivan, WI 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 — Ductwork Repair in Sullivan, WI, 24/7