Open now · 24/7 emergency | St. George · Washington · Hurricane · Ivins · Cedar City · Mesquite NV
AC
Heating
Plumbing
Service Area
Specials Commercial About Contact Financing Available →
435-817-8181
★★★★★  Furnace repair · Same-day

Furnace acting up?
We get heat back.

Won't ignite, blowing cold, short-cycling, weird noises, error codes — flat-rate diagnostic, parts on the truck, written quote before we touch anything. Most repairs finished same visit.

Call 435-817-8181
Booking today Flat-rate quote Written warranty
Five Star Air Conditioning, Heating & Plumbing service trucks at a St. George home
4.9 from 200+ neighbors
Same-day service
|
Flat-rate pricing
|
25 years in the trade
|
UT #11804992-5501
|
No upsell scripts
Furnace repair · Same-day

Whatever your furnace
is doing — we know it.

Furnaces fail in predictable ways. Our trucks stock the parts that fail most often in Southern Utah homes.

01

Won't Ignite

Bad igniter, dirty flame sensor, gas valve issue, control board fault. Most no-ignition calls fixed in under an hour.

02

Blowing Cold Air

Thermostat misset, blower running but burner off, flame sensor cleaning needed. Diagnosed quickly, fixed cheaper than you'd think.

03

Short-Cycling

Furnace kicks on and off rapidly. Usually flame sensor, limit switch, dirty filter, or thermostat issue. Diagnosed in 15 minutes.

04

Strange Noises

Banging, screeching, rumbling. Could be ignition delay, blower motor, cracked heat exchanger. We diagnose safely and explain clearly.

05

Error Codes

Flashing lights on the control board mean something. We know what each manufacturer's codes mean and what they actually require to fix.

06

High Gas Bills

Furnace running too long or too often. Could be thermostat, blower issue, dirty system, or sizing. We find the cause.

— Or just call —

435-817-8181

Not sure what you need? A real human in St. George answers the phone day, night, weekends, holidays. Tell us what's happening and we'll point you the right direction.

Tap to call now
How a Five Star furnace repair runs

How it actually goes.

No mystery, no four-hour windows, no surprise charges at the end.

01

Call & Schedule

Real dispatcher answers in St. George — even at 2am for no-heat. Tell us the brand, age, and symptoms. Emergency no-heat calls go to the front of the line.

02

On-Site Diagnostic

Full diagnostic — ignition, gas pressure, safeties, electrical, airflow, error codes. Flat-rate diagnostic fee, written quote before any repair starts.

03

Heat Back On

Repair done, system tested through a full cycle, supply temps measured. We don't leave until your house is warming up.

Heating service across Southern Utah.

St. George-based with techs working from Bloomington up to Parowan every day. We'll be at your door — usually faster than you'd expect.

St. George (HQ) Hurricane Cedar City Washington Ivins Santa Clara La Verkin Toquerville Leeds Bloomington Parowan Mesquite, NV
Common questions

Straight answers, no fluff.

These are the questions our techs actually get asked on the phone every day.

How much does a furnace repair cost?
Flat-rate diagnostic fee, then a written quote. Most common repairs (igniter, flame sensor, thermostat, blower motor) run $180-$550 fully installed. Heat exchanger or control board replacement quotes separately.
Can you come out tonight?
Yes. No-heat is emergency priority year-round, especially during a Southern Utah cold snap. Real human answers the phone day or night, weekends, holidays.
Should I repair or replace my old furnace?
Furnaces in Southern Utah typically last 18-25 years (longer than national average due to mild winters). If yours is over 15 and you're facing a major repair (heat exchanger, control board, blower), it's worth getting a replacement quote alongside the repair quote.
Is a cracked heat exchanger really dangerous?
Yes. A cracked heat exchanger can leak carbon monoxide into your home. We test for cracks during every diagnostic — if we find one, we'll show it to you on a borescope camera. Safety isn't optional.
Do you do gas line work?
Yes — for connections to the furnace itself. Larger gas line modifications (running new lines, sub-meter work) we coordinate with our licensed gas plumbers.
Ready to book?

Furnace giving up?
Heat back tonight.

435-817-8181