Emergency Services · BBB A+ · CSLB #1030917

Fresno Heating & Furnace Repair
Same-Day Service, Video Diagnosis, Fix It Or You Don’t Pay

Your furnace is blowing cold air — or nothing at all. The temperature just dropped and another contractor quoted you a price over the phone without even looking at it. Before you pay for a guess, get the real diagnosis on video. Fresno-local techs, same-day dispatch, and carbon monoxide safety assessed on every call.

BOSCH Certified Avg 60-min On-Site Diagnostic CSLB #1030917 0% Financing

Fresno office · 3681 W Mckinley Ave, Fresno, CA 93722 · Same-day estimates available

Call (559) 245-1485 Call Now

4.8 ★★★★★ · 1,200+ Reviews

Verified across Fresno, Clovis & Madera

Fresno Winter Doesn’t Wait. Don’t Let Budget Timing Delay Your Furnace Repair.

A heating failure in California’s winter doesn’t give you time to plan a budget. Every hour without heat compounds the urgency — frozen pipes, space heaters running overnight, and emergency after-hours premiums. Financing removes the financial reason to delay. Lock in your diagnosis today.

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Call 24/7 — (559)245-1485

Six Signs Your Heating System Needs Repair Now — Not Later

Most Fresno homeowners ignore the early warning signs until the furnace fails completely — usually on the coldest night of the year. Here’s how to catch the problem before it catches you.

Furnace Running But No Heat Coming Out

The furnace starts, the blower runs, but the air coming from your vents is cold or room temperature. Most common causes are a failed igniter, a fouled flame sensor, or a gas supply issue — all of which get worse the longer the system runs without diagnosis.

Furnace Starts Then Shuts Off After A Few Minutes

The furnace ignites, runs briefly, then shuts off before the home reaches temperature. This is short cycling — usually caused by a tripped high-limit safety switch, a cracked heat exchanger, or a blocked flue. Short cycling on a furnace is never normal and always needs diagnosis.

Unusual Noises — Banging, Rattling, Squealing

A properly functioning furnace operates quietly. Banging at startup indicates delayed ignition — unburned gas igniting in a small explosion inside the heat exchanger. Rattling suggests a loose component. Squealing is a blower motor bearing. Every one gets worse with every cycle.

Yellow Or Orange Burner Flame

A healthy gas burner produces a steady blue flame. Yellow or orange flame indicates incomplete combustion — which means carbon monoxide may be present. Turn the furnace off and call immediately. Do not run a furnace with a yellow or orange flame.

Gas Bills Spiking Unexpectedly

A furnace losing efficiency — from a dirty heat exchanger, a failing inducer motor, or a degrading burner — runs longer to produce the same heat output. If your gas bill has increased significantly with no change in usage patterns, the furnace is working harder than it should be.

Furnace Over 15 Years Old

A furnace over 15 years old that hasn’t been serviced is not a question of if it will fail — it’s when. Heat exchangers in older furnaces are at elevated risk of cracking. Capacitors, igniters, and flame sensors all degrade over time. Diagnosis now costs far less than an emergency replacement in January.

Fresno Furnace Repair Pricing — Written Quote Before Any Work Begins.

No “come to your house to see the price” games. Most furnace repairs in California range from $150 to $1,500 depending on the failed component. Your exact price is locked in writing after we diagnose the system — before any work starts.

Furnace Repairs

Typical Repairs

On-site inspection, full system test, written quote. Credited to repair. Typical repair range: $180–$650.

Full AC Replacement

$0 Down · 18 Mo. 0% APR

If your system is 12+ years old or the compressor’s shot, replacement often beats repair. From $89/month · 144-month terms · 4.99% APR.

Call Now — 559-245-1485

Four Reasons Fresno Homeowners Call Grandmark First.

These are the reasons our Fresno customers call us back — and send their neighbors.

Fresno-Local Techs · W-2 Employees

We don’t subcontract. Every tech who pulls up to your door works for Grandmark, passed our background check, and has served Fresno homes for years. You get the same crew — not whoever answered the dispatch call.

Carbon Monoxide Safety On Every Call

A cracked heat exchanger can allow carbon monoxide into living spaces — a life-safety issue with no symptoms until it’s too late. We assess CO risk on every furnace service call as standard procedure. Not optional. Not an add-on. Standard.

$0 Down · 0% Interest For 18 Months

If the repair turns into a replacement, you’re not stuck. Same-day financing approval with no hard credit pull. Most homeowners qualify in under 10 minutes. No early payoff penalty.

Fix It Or You Don’t Pay

Same problem comes back after we repair it — we return at no charge. No argument. No invoice. Every heating repair across Fresno County — residential and commercial. That’s not marketing — that’s our policy.

Know exactly what’s wrong with your Fresno HVAC system — before you commit to anything.

Don’t pay for a guess. Get the proof.

Every Grandmark job starts with a free video diagnosis — refrigerant levels, electrical components, coil condition, airflow readings. You see every issue on camera before we quote a single dollar.
After the job: a completion video delivered to you. Every repair confirmed. Every reading documented. A permanent record for your home warranty, insurance claim, and future service calls.

Grandmark HVAC— Fresno, CA office.

Licensed HVAC crews dispatched daily across Fresno County and surrounding cities.

Address

3681 W McKinley Ave
Fresno, CA 93722

Phone

(559) 245-1485

Hours

Open 24 hours · Emergency service available

License

CSLB #1030917 · Licensed & Insured

Google rating

4.9 ★ · 40+ verified reviews

GMB Verified ✓

Call for a free estimate

What Fresno homeowners say about Grandmark HVAC.

4.8

★★★★★ · 1,200+ verified Google reviews

Fresno · Clovis · Madera · Sanger · Selma & surrounding Fresno County cities

Three Steps From No Heat To Fixed.

Simple, transparent, documented at every step.

STEP 1

Video Diagnosis + Written Quote

Our licensed tech (not a commissioned salesman) arrives within the window, inspects the furnace top to bottom, runs combustion analysis, assesses CO safety, and walks the whole system on video. You get the exact repair price in writing before work begins — no “expires tonight” pressure tactics

STEP 2

On-Site Repair

Most Fresno furnace repairs are completed on the first visit. Common parts — igniters, flame sensors, capacitors, inducer motors, control boards — are stocked on every truck. Financing approved in 10 minutes with no hard credit pull if the repair escalates.

STEP 3

Fixed & Guaranteed

Full system startup, combustion readings verified, all work documented on video, paperwork for PG&E rebates if applicable, fix-it-or-you-don’t-pay guarantee activated. We clean up, you turn up the thermostat.

$0 down HVAC in Fresno — most homeowners q$0 down furnace repair & replacement in Fresno — most homeowners qualify same day.

$0 down · 0% interest for 18 months · No hard credit pull · Same-day approval

Down payment

Interest rate

Same day

Approval · most cases

FAQ

Questions Fresno homeowners ask before calling an HVAC Contractor.

Straight answers, no sales pitch. Still stuck? Hit the button — we’ll text or call you back in under 10 minutes during business hours.

The most common causes are a failed igniter, a fouled flame sensor, a tripped high-limit safety switch, a failed control board, or a gas supply issue. Each has a different cause and a different repair — which is why proper diagnosis before replacing parts matters. We document the diagnosis on video before quoting any repair.

Yes — on every single furnace call, as standard procedure. A cracked heat exchanger can allow carbon monoxide to enter living spaces, which is a life-safety issue with no symptoms until it’s too late. CO safety assessment is not optional and not an add-on charge. It’s included on every heating service call we perform.

We make it right at no charge. If we diagnose your heating repair and fix it, and the same issue returns, we come back and handle it — no argument, no invoice. That guarantee applies to every residential and commercial heating repair we complete across Fresno County.

Yes. Grandmark services both gas furnaces and heat pump systems across Fresno County. Heat pump heating diagnosis requires different knowledge than furnace diagnosis — we assess reversing valve function, defrost cycle performance, refrigerant charge in heating mode, and auxiliary heat sequencing.

Fresno, Clovis, Madera, Sanger, Selma, Fowler, Kingsburg, Reedley, Dinuba, Parlier, Kerman, and Hanford. Same-day availability in most ZIP codes. Our Fresno office is at 3681 W McKinley Ave.

Most non-emergency service calls are dispatched the same day. For true no-heat emergencies on cold nights or any suspected carbon monoxide issue, we prioritize same-day response, typically within 2–4 hours. Call (559) 272-7495 for current availability.

Most furnace repairs in Fresno range from $150 to $1,500 depending on the failed component. An igniter replacement typically runs $150–$300. A flame sensor cleaning runs $80–$150. A control board replacement runs $400–$900. A heat exchanger repair can run $1,000–$1,500 — at which point furnace replacement is often the better financial decision. Grandmark provides a written quote before any work begins.

Heating Repair Across Fresno County & 11 Surrounding Cities.

Licensed HVAC crews dispatched from our 3681 W Mckinley Ave office. Same-day availability in most ZIP codes.

Fresno Clovis Madera Sanger Selma Fowler Kingsburg Reedley Dinuba Parlier Kerman Hanford

Stop Freezing. Start Calling.

Licensed Fresno techs on standby. Same-day diagnostics. Written quote before a wrench turns. Fix it or you don’t pay.

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