Do you charge for the diagnosis?

We quote the diagnostic fee up front when you book, and you always see the repair price before any work starts, no surprises on the invoice.

Repair or replace, how do you decide?

We weigh the repair cost against the furnace's age and condition and tell you plainly which we would choose in your house. Many furnaces have years left after an affordable fix.

Is a loud boom at startup dangerous?

It can be, delayed ignition burns off gas that has pooled in the burner compartment. Stop using the furnace and have it looked at promptly.

Do you check for carbon monoxide?

Yes. Every furnace repair includes a heat exchanger inspection and a CO reading, it is the most important safety check a gas furnace gets.

Furnace Repair

Furnace Repair, Diagnosed Before Fixed

A furnace rarely quits without warning, it gets louder, cycles oddly, or heats some rooms and not others, usually right as the first cold week arrives. We diagnose before we touch anything: you see what failed, what it costs to fix, and whether a repair actually makes sense for your system's age. Then we fix it properly, test it under load, and show you the before-and-after readings.

Get a Free Quote (425) 200-5790

Furnace Repair, real job photo by MOMO Air Care

Signs your furnace needs repair

Blowing cool or lukewarm air on a heat call

Short-cycling, firing up and shutting down in quick bursts

Rattling, screeching, or booming sounds at startup

The thermostat is set right but rooms stay cold

Burner flame looks yellow or unsteady instead of blue

Heating bills jumping without a change in weather or habits

Key Benefits

Diagnosis and a clear price before any repair begins
Repair-or-replace guidance based on age, condition, and cost, not a sales script
System tested under load after the fix, with readings you can see
One team for the whole airflow side: furnace, blower, and ducts

Equipment We Use

Combustion and CO analyzers
Digital multimeters and manometers
Inspection cameras for heat exchangers and ducts

What's Included

Full diagnostic of ignition, burners, blower, and controls
Safety check: heat exchanger inspection and carbon monoxide reading
Clear written quote before repair work starts
Component repair or replacement as approved by you
Post-repair test cycle with temperature-rise verification
Photo documentation of what was wrong and what was done

How It Works

Describe the Symptoms

Tell us what the furnace is doing, it usually narrows the cause before we arrive.

Diagnose & Quote

We test the system, find the fault, and give you a clear price and an honest recommendation.

Repair & Verify

The fix is done same visit whenever parts allow, then tested under a full heat cycle.

Walkthrough

You see the photos, the readings, and what to watch for, plus straight advice on remaining lifespan.

Photo Proof, Every Job

Before/after photos are standard, you see exactly what we did.

Upfront Pricing

The price we quote is the price you pay. No door-step upsells.

Satisfaction Guaranteed

If anything isn't right, we come back and fix it free.

Furnace Repair. Common Questions

Usually within the same week, and sooner when schedules allow. Call (425) 200-5790 and we will give you an honest arrival window on the spot.

Furnace Repair is available across Greater Seattle, WA, including Seattle, Bellevue, Tacoma and Renton. See the full service area.

Air Duct Cleaning →Dryer Vent Cleaning →Furnace Cleaning →Crawl Space Services →Chimney Cleaning →HVAC Repair & Inspection →Furnace Installation & Replacement →Heat Pump Installation & Repair →AC Repair & Installation →

Get Your Free Furnace Repair Quote

Tell us about your home, we'll reply fast with a clear, honest price.