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

The typical HVAC experience in Longmont, CO 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 Longmont, CO technicians are dispatched from positions close to your neighborhood, hold active CO 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 Longmont, CO 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 Longmont, CO — licensed, insured, guaranteed.
If your HVAC system just stopped working in Longmont, CO, you don't have time for voicemail or a 48-hour wait list. Calling +1-844-586-3138 connects you to a live Longmont, CO 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 Longmont, CO's prevalent HVAC systems, so we resolve most Longmont, CO emergency calls without a return trip. Your written quote comes before we start — always.
Emergency Line in Longmont, CO: +1-844-586-3138 →From a full new installation in your Longmont, CO 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 Longmont, CO. 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 CO permits handled.
Book Longmont, CO Home Visit: +1-844-586-3138 →For businesses in Longmont, CO, 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 Longmont, CO. Our commercial jobs are coordinated around your operating hours.
Commercial HVAC in Longmont, CO: +1-844-586-3138 →Longmont, CO 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 Longmont, CO's specific conditions. If someone in your Longmont, CO household manages asthma or allergies, improving indoor air quality is one of the most direct improvements available.
Air Quality Service in Longmont, CO: +1-844-586-3138 →More Longmont, CO homeowners are choosing heat pumps and ductless systems for their versatility and long-term efficiency. For additions, garages, and converted spaces in Longmont, CO 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 Longmont, CO: +1-844-586-3138 →The Longmont, CO 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.
Longmont, CO Service Plan Details: +1-844-586-3138 →


No surprises. No mystery. This is exactly what happens when you call FH HVAC in Longmont, CO.
A live dispatcher answers in Longmont, CO — day or night, weekends, holidays. Your location is logged and dispatch starts immediately.
We route the closest available tech in Longmont, CO. Your ETA is confirmed before you hang up — average is under 60 minutes in most Longmont, CO locations.
After diagnosis, your Longmont, CO technician hands you a written, itemized quote. 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 Longmont, CO. Your approved written quote is your guaranteed price in Longmont, CO — no exceptions.
Proximity to Longmont, CO is intentional, not accidental. Average on-site time in this market is under 60 minutes, including during peak summer and winter demand.
Longmont, CO licensing, liability coverage, NATE cert, EPA 608. Documentation available before any Longmont, CO job.
90 days. Parts and labor. No argument. The guarantee appears on your invoice because verbal assurances aren't guarantees.
Calling +1-844-586-3138 at 2 AM in Longmont, CO gets a person, not a machine. Your ETA is confirmed before the call ends.
Longmont, CO maintenance plan customers have dedicated scheduling that doesn't share the general queue. Plus a 15% discount on any repair parts and labor, all year.
"In Longmont, CO 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 Longmont, CO 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 Longmont, CO. 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 Longmont, CO. Call +1-844-586-3138 and get a real ETA within minutes.
📞 +1-844-586-3138 — Hvac in Longmont, CO, 24/7