Orange County Heating Season

$89 Furnace Tune-Up

Your furnace has been sitting untouched since spring. A tune-up now is how a worn ignitor or a dirty burner gets found on a quiet Tuesday, instead of at 10pm on the first genuinely cold night of the year.

Book My $89 Tune-Up Call (949) 590-3296

Flat $89 per system Full gas safety check Written report 5.0 on Google

Why It Matters Here

Idle Most of the Year, Then Asked for Everything

Orange County is hard on heating equipment in a way that is easy to miss. Your furnace does almost nothing for eight or nine months, sitting in an attic, a closet, or a garage collecting dust, and then it is expected to run perfectly the first time you ask.

Almost every heating call we take lands between October and March, and the heaviest stretch is the two or three weeks right after the first real cold snap, when every furnace in the county starts up at once. That is the worst possible week to discover yours will not light.

A tune-up before that happens is the cheapest thing on this page. It is also the only part of the year when you get to choose the appointment time.

What the Visit Covers

Safety First, Then Performance

A gas furnace is the one appliance in the house that burns fuel and vents exhaust. Half of the visit is about proving that is happening safely. The other half is about making sure the system heats the way it should without wasting gas.

Combustion & Safety

Heat exchanger inspected for cracks and corrosion
Carbon monoxide test at the unit
Gas connections and operating pressure checked
Burners inspected and cleaned, flame pattern verified
Ignitor and flame sensor tested and cleaned
Flue and venting checked for proper draft and obstruction
Safety limit and rollout switches confirmed working

Performance & Efficiency

Blower motor and wheel inspected, airflow checked
Air filter checked and its condition reported
Temperature rise measured across the system
Electrical connections tightened, amp draw tested
Thermostat operation and heat cycle verified
Condensate drain checked on high-efficiency systems
Full start-to-finish heat cycle run before we leave

You get it in writing. After the visit you receive a report showing what was inspected, what was adjusted, and what we would keep an eye on, so you know the actual condition of your system instead of taking our word for it.

Straightforward Pricing

One Price, No Surprises

$89

per system

The same $89 whether the visit takes 45 minutes or two hours
No trip fee and no separate diagnostic fee
Two systems in the same visit: $178 total
Written report of everything checked
If we find a repair, you get a flat price before anything is touched
Included twice a year with a Season Pass membership

Book Online Now

Prefer to talk it through? Call (949) 590-3296, a real person answers 24/7.

Quick Self-Check

Has Your Furnace Been Telling You Something?

Tap anything you have noticed. None of these mean your furnace is about to fail, but each one is a thing a tune-up is designed to find.

Recognize any of these?

Every one of these is on the tune-up checklist. Booking one is the cheapest way to find out whether it is nothing or the start of something.

Book My Tune-Up

How It Goes

An Hour, and You Know Where You Stand

Step 1

Pick Your Time

Book online in about a minute, or call and talk to a real person. Before the first cold snap you still get your choice of appointment windows.

Step 2

The Full Checklist

Your technician works through the combustion and safety checks first, then the performance side, and runs a complete heat cycle before leaving.

Step 3

A Straight Answer

You get the written report and an honest read on your system. If something needs fixing, you get a flat price. If nothing does, we say that too.

If You Would Rather Not Think About It

Season Pass Maintenance

Most people mean to book a tune-up and then remember in January. The Season Pass takes the remembering off your plate: two visits a year, one in spring for the air conditioner and one in fall for the heat. We reach out to schedule both.

Twice-yearly tune-ups, heating and cooling
Priority booking when the schedule is full
25% off your first service
15% off repairs
We call you, so nothing gets forgotten

See the Season Pass

What Orange County Homeowners Say

Real reviews from verified Google and Yelp customers across Orange County.

One Season saved the day yet again! Daniel and Peter were thoughtful, thorough, and respectful and the work is outstanding! Thank you!

Hope Shimizu
February 12, 2026

The only repair and install service I will use for now on. Quick response and great price. Thank you

Tausha Wagner
February 6, 2026

These guys are the real deal. Honest. Reliable. We had a big HVAC issue that they solved timely. We felt fully taken care of and would absolute recommend this company.

Dan D.
February 19, 2026
Excellent experience, Aubrey was able to thoroughly test our system & fix it quickly, highly recommend!

Sandeep Kumar
March 20, 2026

I had One Season out to do a laundry list of enhancements and repairs on my heat pump systems. They came promptly to perform an estimate, prices were very reasonable, and they scheduled an appointment for the following week. They showed up on time, worked quickly and cleanly, and the installations they did look excellent. I really appreciate the prompt, clean, and professional work!

Alex Ruby
December 19, 2025

Daniel did a good job . Thanks

Olive Rhone
December 12, 2025
Great experience with One Season! First time using them for maintenance on my heater and it couldn’t have been better! Highly recommend them!

Suzanne Gorman
December 23, 2025

Amazing vendor. Very honest, and have amazing tech. We were in difficult situation where our lennox has proprietary system and our thermstat went out. But he made simple and just easy to be out of that lennox dependency. Will use them again in the future with their annual maintenance

Johny Hartanto
April 21, 2026

Very professional and easy to work with. Not only did they have a very good solution for replacing the old furnace and air conditioner, but they also redid much of the ductwork so everything works better. I highly recommend One Season!

David Nale
April 20, 2026

CA License #1038022 5.0 on Google · 203 reviews 4.9 on Yelp · 63 reviews 24/7, a real person answers 100% Satisfaction Guarantee

Good Questions, Straight Answers

How long does a furnace tune-up take?

Plan on about an hour for a single system. It runs longer if the technician finds something that needs attention, and we will tell you before any extra work is done.

Is $89 really the whole price?

Yes, $89 per system, with no trip fee and no diagnostic fee added on top. A second system in the same visit is $89 as well, so two systems is $178. If the tune-up turns up a repair, you get the finding and a flat, upfront price before anything is fixed.

Does my furnace really need this every year?

Gas heating equipment is checked annually for a reason: the parts that matter most for safety, the heat exchanger, the burners, and the venting, fail quietly. In Orange County your furnace also sits unused for most of the year, which is its own kind of wear. Annual service is also what most manufacturers require to keep a warranty valid.

My furnace seems to work fine. Is a tune-up still worth it?

That is the best time to have it done. A tune-up on a working furnace is how a worn ignitor or a weak flame sensor gets caught while it is still a small part, instead of on the first cold night when the house will not warm up.

What happens if you find a problem?

You get a straight explanation of what we found, what it affects, and a flat price to fix it. Nothing gets repaired without your approval, and our technicians are never paid to upsell. The $89 still covers the visit either way.

Do you service wall furnaces and floor furnaces?

Yes. Along with standard attic, closet, and garage furnaces, our technicians service wall and floor units, which are common in older Orange County homes.

What if my furnace is too old to be worth servicing?

We will say so. If a system is near the end of its life or has a safety problem that cannot be repaired responsibly, you get an honest read on repair versus replacement rather than a tune-up on equipment that does not warrant one.

Is the tune-up included with the Season Pass plan?

Yes. Season Pass members get two visits a year, one in spring for the air conditioner and one in fall for the heat, plus priority booking and member pricing on repairs. We reach out to schedule both.

Book Your Tune-Up

Before the First Cold Night

It takes about a minute to book, and about an hour to know your furnace is safe and ready for the season. Flat $89 per system, across all of Orange County.

Book Online Now Call (949) 590-3296

24/7, a real person answers 7700 Irvine Center Dr #800, Irvine, CA 92618 Serving homeowners across Orange County

$89 Furnace Tune-Up

Idle Most of the Year, Then Asked for Everything