Foss Heating & Cooling

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United States
Mount Vernon, WA
Foss Heating & Cooling

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Since 1974, Foss Heating & Cooling has served the Skagit Valley with unmatched customer service and value.

It is our highest priority to deliver 100% satisfaction to our clients and be a great place to work for our team members.

10/15/2026

Thanks for trusting us with your home comfort, Teri! We hope your fireplace keeps you cozy for many Washington winters to come.

“Foss Heating & Cooling went above and beyond from start to finish on our gas fireplace insert installation. They were quick to schedule, showed up right on time, and effortlessly came up with smart solutions for every issue that popped up while removing our old insert. They took care of everything from coordinating the electrician, handling permitting, to getting the new insert fully installed without a hitch.

A special thank you to Kyle and Bryer, our installation team! They were exceptionally considerate of the fact that we work from home, kept the work area covered, and cleaned up thoroughly before leaving. We’ve used Foss for our heating and cooling maintenance for a while now, and their quality of service remains exceptional across the board. Highly recommend!” Teri B., Foss customer

10/12/2026

Turning your furnace on for the first time this fall? Don't panic if you notice a dusty smell at first. After sitting unused for months, your system may burn off some dust that collected over the summer.

But if you notice a strong burning smell, unusual noises, poor airflow, or your furnace isn't heating properly, that's a different story. Call on Foss to give you peace of mind this fall: 360-336-1517

10/07/2026

Your furnace is going from sitting quietly all summer to being the hardest-working appliance in your home.

Before you need it on a 30° Skagit Valley morning, check these things:
1. Change your filter
2. Check that your vents aren't blocked
3. Make sure your thermostat is working properly
4. Schedule maintenance with Foss: 360-336-1517

09/25/2026

Did you know today is National Tune-Up Day?

An annual heating tune-up from Foss can help:
-Improve efficiency
-Catch small issues before they become costly repairs
-Extend the life of your system
-Give you peace of mind before cold weather arrives

Schedule yours early and be ready when temperatures drop: 360-336-1517

09/22/2026

Fall has officially arrived in Skagit Valley!

Sweater weather, pumpkin everything, and crisp mornings are around the corner.

As you settle into the new season, make sure your home is ready too. If your heating system needs a little attention before the colder weather sets in, Foss is just a phone call away: 360-336-1517

09/11/2026

Today, we pause to remember the lives lost and the strength our communities showed on September 11.

We honor the first responders, service members, and all those whose courage and compassion continue to inspire us.

May we never forget, and may we continue to look out for one another in memory of this day.

09/07/2026

Happy Labor Day from all of us at Foss!

Today we're celebrating the hardworking people who keep our communities running, especially our incredible team members who show up every day to serve our customers.

We hope you enjoy a safe, relaxing holiday.

09/02/2026

September is National Preparedness Month, and it's a perfect time for us to remind you that preparing your home goes beyond stocking emergency supplies.

Take a few minutes to:
✔️ Test your smoke and carbon monoxide detectors
✔️ Replace HVAC filters
✔️ Schedule your furnace maintenance
✔️ Know where your main water shutoff valve is located

A little preparation today can help prevent bigger headaches tomorrow. Follow Foss for more home preparedness tips.

08/27/2026

Thank you, Vicki, for trusting Foss and for sharing your kind words. We're proud to have a team that shows every customer respect, communicates clearly, and delivers service you can feel confident in.

“Foss service people arrive on time, communicate clearly what they are here to do. They are very respectful of me, our house and of my disabled son. They do their work quietly and neatly and tell me what they have done and what I need to do. I appreciate them very much.” -Vicki W., Foss customer

08/18/2026

Be honest: have you changed your air filter in the last 3 months?
Replacing a dirty air filter is one of the easiest ways to help your HVAC system run more efficiently. A clean filter can improve airflow, support better indoor air quality, and reduce unnecessary strain on your equipment. If you need assistance with yours, contact us today.

Address

4101 Old Highway 99 South Rd
Mount Vernon, WA
98273

Telephone

+13603361517

Website

http://fossheating.com/

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