Furnaces

Furnace service.

You’ve got high expectations for your heating system. Perfect comfort, peak efficiency, and reliable operation, year after year, is a lot to ask. When you let the experts from Trademark Mechanical Heating & Air Conditioning handle essential service, it’s nothing more than a job well done. We customize a maintenance program to suit your goals, budget, and the age and style of your heating equipment. With accommodating scheduling, prompt arrival, tidy job sites, and quick turnaround, Trademark Mechanical makes it easy to take the best care of your HVAC system in Northern Idaho and Eastern Washington.

Why Choose Trademark Mechanical?

We are a family-owned business, licensed and insured, with deep roots in Hayden, ID and the surrounding areas. Our team supports our local businesses, clubs, and organizations. We hire local—we are always welcoming new team members!

Our years of experience, along with our A+ rating from the Better Business Bureau (BBB), let you know we’re a company that always does things the right way. We stay true to transparency, with our Trademark Mechanical professionals always explaining the work before they start any project. We provide accurate up-front quotes, and our prices are fair.

Choosing a Furnace in Eastern Washington or Northern Idaho

Modern furnaces are powerful, quiet, and energy-efficient appliances that deliver comfort to every room in your home. They not only provide warmth but can also help improve your indoor air quality (IAQ).

Here are a few factors to consider when purchasing your next furnace:

1. The Right Size—Our heating and cooling experts will install a correctly sized furnace to fit the square footage and layout of your Spokane home. Doing so ensures you get the most benefits in terms of comfort and operating costs.

2. The Right Model—A smaller household can get away with a single-stage furnace that switches on and off based on the thermostat setting. But larger homes will benefit from a two-stage furnace or variable-speed furnace. These models quickly respond to any changes in the temperature and will keep your home at a more consistent temperature.

3. The Right Efficiency—Newer gas furnaces have an annual fuel utilization efficiency (AFUE) rating upwards of around 98 percent, which means they can convert 98 percent of the fuel they burn into energy. A higher AFUE rating creates greater efficiency.

4. The Right Fuel—Most homeowners in Spokane rely on natural gas to fuel their furnaces. If you don’t have access to a natural gas line, propane or oil are the likely alternatives. You can also consider an electric furnace, but be prepared to pay more in operating costs.

Our financing options and complete warranty packages make it convenient for you to pick out the perfect furnace for your home and budget, subject to approved credit.

Call us today!

How Much Money Can a New Furnace Save You?


Our AFUE energy savings calculator can help determine how much you could save on your utility bills. Just enter your current unit’s AFUE value and compare it to a newer, more efficient system.

The AFUE Calculator is disabled because JavaScript did not properly load.

To view the calculator please try your browser's refresh button, enable JavaScript, or try a different browser.

Furnace Installation or Replacement

At Trademark Mechanical, we pride ourselves on offering some of the best installation services throughout Northern Idaho and Eastern Washington. If a component is not installed correctly, you can expect problems down the road. Learn more about furnace installation and replacement.

What Size Gas Furnace Do I Need?

On average, you want a furnace powerful enough to deliver at least 40 BTUs (British thermal units) of heat per square foot of your living spaces. For a 2,500 square foot home in Spokane, you would want a furnace that delivers at least 100,000 BTUs of heat.

Furnace Repair in Spokane, WA, Hayden, ID, and Sandpoint, ID

Stay warm, stay cozy—don’t let a minor repair issue leave you in the cold! You can count on our team catching minor issues before they become costly and inconvenient repairs.

We offer 24/7 emergency repair services to be there when you need us. Call us whenever you need a helping hand.

Click here to learn more about Furnace Repair.

Furnace Maintenance

Preventative maintenance extends the service life of your equipment and ensures it will run when you need it most. The U.S. Department of Energy (DOE) estimates homeowners can reduce their energy costs by up to 30 percent through planned maintenance. Learn more about furnace maintenance.

Call on Our Team for All Your Heating Service Needs!

The results easily pay for the investment. You’re going to spend less for superior comfort every month and maximize value through longer service life. Our professionals further troubleshoot, verify safety, restore capacity and fulfill warranty obligations. Give us a call today or request service online for expert furnace service anywhere throughout Hayden, ID, Sandpoint, ID, Dalton Gardens, ID, Garwood, ID, Coeur d'Alene, ID, Post Falls, ID, Athol, ID, Spirit Lake, ID, Liberty Lake, WA, and Spokane, WA.

Furnace Service in Coeur d'Alene, ID | Furnace Maintenance Sandpoint, ID | Heating System Service Hayden, ID

Gas Furnace Repair in Post Falls, ID 83854

“Levi is very professional. He goes over and beyond to explain his findings and the best fix. He did a great job installing our new furnace pump. Very happy with Porsche who also went over and beyond to get us scheduled as quickly as possible as our furnace was leaving and we needed someone out as quick as possible. Trademark Mechanical is one of the best companies I have dealt with when it comes to customer service and quality work. If I could give 10 stars I would.”

- Kelly E.

Gas Furnace Repair in Spokane Valley, WA 99037

“Troy is the best! He quickly found the broken part, showed me why it failed, and made the repair. Thanks again!”

- Sherri W.

Gas Furnace Repair in Spokane Valley, WA 99016

“Thanks so much! Troy was great, he showed me what was wrong and fixed it right away!”

- Sherri W.

Gas Furnace Repair in Spokane, WA 99218

“Troy did a great job! He explained things clearly and I feel good about the quality of repairs that were done. When he came the 1st time, one of the ordered parts was not working correctly. He reordered the part and came a 2nd time to replace. Thanks Troy!”

- Mary V.

Gas Furnace Maintenance in Sandpoint, ID 83864

“I can’t say enough positive things about the service Alex Kerbs provided us today.  He was prompt, friendly, thorough, competent, and communicative. We felt like he left nothing unexplained. We would like to request that he be assigned as our regular service man. He personifies the quality for which Trademark is known.”

- Julie T.

Gas Furnace Repair in Spokane, WA 99205

“He is excellent, knowledgeable and personable”

- Deborah L.

Gas Furnace Repair in Bonners Ferry, ID 83805

“Trademark Mechanical had better hang on to this guy! He was the type of person you would be happy to have in your home even if he wasn’t there for repair service. Polite, pleasant, and very professional. 5 stars aren’t enough for this guy.”

- Gary R.

Gas Furnace Installation in Spokane, WA 99203

“Very knowledgeable & seemed to understand the installation completely. They both were very professional. Would have them back, for sure.”

- Robert W.

Gas Furnace Maintenance in Hayden, ID 83835

“The techs always tell you what they have done and how everything thing is with your furnace.”

- SANDRA R.

Gas Furnace Maintenance in Hayden, ID 83835

“Very thorough”

- Bob S.

Need Furnace Service?

Contact the experts at Trademark Mechanical.

Call us today at:

Hayden, ID
(208) 772-5269

Sandpoint, ID
(208) 265-0590

Spokane, WA
(509) 467-4000