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 easy for you to pick out the perfect furnace for your home and budget. 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.

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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 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.

Gas Furnace Maintenance in Post Falls, ID 83854

“Great serve. Very professional and knowledgeable.”

- KEN H.

Gas Furnace Maintenance in Hayden, ID 83835

“Delta has done a fantastic job for my husband and I in every single capacity that we have worked with him and this time was no different. We are grateful for always knowing he would be honest and get the job done like we needed. Thanks again so much!”

- Patricia R.

Gas Furnace Installation in Post Falls, ID 83854

“I had both a gas furnace and AC installed…friendly, professional, FAST and fairly priced! Would recommend Trademark in a heartbeat. Also love that they are a homegrown small business making good!!!”

- Jennifer M.

Gas Furnace Maintenance in Post Falls, ID 83854

“Very polite and professional!”

- Douglas K.

Gas Furnace Installation in Post Falls, ID 83877

“Fabulous work & technicians! You are the best!!”

- Sarah H.

Gas Furnace Installation in Rathdrum, ID 83858

“Andrew was very experienced and efficient and took the time to answer all our questions about the installation. At the time he was also teaching and helping the team. They all did a great job and we now have a warm and cozy house. Thank you for sending such an experienced and nice gentleman.”

- Bill and Pat L.

Gas Furnace Installation in Post Falls, ID 83877

“Fabulous & so professional. I highly recommend Trademark Mechanical. Several years ago I lived alone 40 miles out of Coeur d Alene & in the coldest part of the winter, my furnace died. I called several heating businesses but Trademark Mechanical was the only company who would help me. I will be forever grateful for your service & will be your loyal customer.”

- Sarah H.

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