How far north do you go?
Firestone is part of our service area. If you're in a neighboring Carbon Valley community, send your zip and we'll tell you straight whether we can get there.
Furnace and AC repair in Firestone, CO
HVAC System Repair fixes furnaces, heat pumps, and air conditioners in Firestone, in Weld County's Carbon Valley — the original town and the newer neighborhoods near I-25 and Highway 119. We're a Denver metro area business owned by Brenda Klepper; HVACYID.com is our website.
Fall Heat Ready specials: Furnace startup — $120 · Duct cleaning — from $350 · Startup + duct cleaning combo — from $375 · 10% off humidifier or UV installs. Offer ends November 1, 2026.
Hours: Monday–Friday, 8 AM–5 PM · Emergency available · Call for service · 720-471-8705
Smell gas? Leave the house right away without touching switches or the thermostat, and call your gas utility from outside. Once it's safe, request a visit for repairs.
What we see in Firestone homes
From coal town to commuter town. Firestone incorporated on October 8, 1908, and was named for a landowner, Jacob Firestone. Coal mining shaped the area — the Firestone Trail follows an old railroad right-of-way that once served the mines. The town counted about 1,358 residents in 1990 and more than 16,000 in 2020, so most homes here are recent construction.
Builder equipment reaching middle age. Plenty of Firestone homes still run the furnace and AC the builder put in. As those systems hit their teens, failed igniters, weak capacitors, and clogged condensate lines become common. We repair first and only talk replacement if the system is honestly done.
Just under 5,000 feet, at the north end of our area. Firestone sits lower than Denver, but gas furnaces here still need the manufacturer's high-altitude setup. It's also at the north end of where we work, so send your zip when you book; hours are Monday to Friday.
What we fix in Firestone
- Heating: no heat, short cycling, condensate shutdowns, heat pumps blowing cold.
- Cooling: warm air, iced coils, dead capacitors.
- Installs you buy: mini-splits, UV lights, and whole-home humidifiers.
Request a visit
Call 720-471-8705 or request a visit at HVACYID.com. Tell us the house, the symptom, and the zip. Workmanship warranty on every repair — if it isn't right, we come back.
More: Denver furnace & AC repair · Furnace not heating? 5 checks · Nearby: North Denver metro (north of 136th Ave & I-25) · Brighton · Broomfield
Common questions
My builder-installed furnace is 15 years old. Should I replace it?
Only if the one you have is actually done. We repair first. If replacement is the honest path, you'll get numbers and time to think.
Can you put a mini-split in my garage?
Yes. You buy the kit on Amazon — we hang the head, run the line set, vacuum, and charge it. Refrigerant and 240-volt are not DIY.