Reliable Furnace Maintenance in Marysville & Snohomish County
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What Our Furnace Maintenance Includes
What Our Customers Are Saying
Discover how our family-owned HVAC team has transformed homes throughout Snohomish County.
Posted on mario macandogTrustindex verifies that the original source of the review is Google. No doubt…the best service, honest , fair price, no haggle..direct pricing. Joel was easy to talk to, very courteous . Highly recommended, you can’t go wrongPosted on JonTrustindex verifies that the original source of the review is Google. Worked with Joel and he helped with Bellevue permitting process for ductless. Overall smooth process. They completed the condensation piping well and looked clean.Posted on Wilma LamoureauxTrustindex verifies that the original source of the review is Google. Wonderful service. Very professional. Honest price. Would recommend this company for any furnace issues.Posted on Roger PrussackTrustindex verifies that the original source of the review is Google. Had a great experience with Joel, he was a total professional, knew his stuff, did not apply any pressure to make a sale as other larger companies in the region did to me while wanting to charge me a much higher price.... Montanos Heating and Cooling Services - is my go to HVAC company moving forward and y'all should make Joel and his team yours as well!Posted on Deserien HinesTrustindex verifies that the original source of the review is Google. Joel was very professional and very knowledgeable.Posted on Mike ThomasTrustindex verifies that the original source of the review is Google. Joel was amazing. Bid process was efficient and his pricing was extremely competitive, beating out another bid by $2K+. He started the project the next day and jumped through multiple obstacles to get the entire job done in a single day! Highly highly recommend!Posted on Isaac HoagTrustindex verifies that the original source of the review is Google. We could not be more thrilled with our experience with Joel. From start to finish, he rose significantly above the competition. We reached out to several service providers before we started the project. Joel was quick to respond, quick to come on site and assess the project, quick to deliver an estimate, and quick to schedule and complete the work. We have used several HVAC providers over the years, and I will never call anyone besides Joel in the future. If you need any HVAC work done, just call Joel. You won’t be disappointed.Posted on Pratik MankadTrustindex verifies that the original source of the review is Google. In March 2025, our old Trane HVAC system stopped working and was no longer able to provide heat. We contacted Montana’s Heating & Cooling Services for help. During the initial visit, Joel inspected the system and managed to get the heating temporarily working. However, due to the age of the system, its performance remained unreliable. After discussing our options with Joel, he recommended replacing the entire unit. Following some research, we decided to proceed with Joel’s recommendation and replaced the old Trane system with a Bosch unit. Joel did an excellent job uninstalling and removing the old system and installing the new one. This was especially impressive considering the furnace was located in a cramped crawl space with limited room to maneuver. He carefully removed the old furnace and installed the new one with great attention to detail. We’re very happy with the quality of the work. Thank you, Joel — we truly appreciate your professionalism and effort.Posted on Alex CrawfordTrustindex verifies that the original source of the review is Google. They were friendly and quick to service, very professional and efficient. My old hvac heating unit was cleaned well and ready for the home sale.Posted on Leslie HaydenTrustindex verifies that the original source of the review is Google. Montanos installed a new dual fuel heat pump with gas backup furnace. Joel was the only bidder who suggested expanding the air intake to the furnace. I noticed the difference immediately. I was a little worried about the installation as my house was not designed for air conditioning. The Bosch system works great! The team was professional and did a great job.
Why Choose Us
Preventive Focus
We find and fix small issues before they turn into costly repairs.
Efficiency Gains
Our maintenance improves heating performance while lowering bills.
Local Knowledge
We understand Washington’s climate and how to keep homes comfortable.
How We Maintain Your Furnace Step
Full-System Check
Cleaning & Adjustments
Final Testing
Areas We Serve
From our home base in Marysville, we proudly deliver HVAC services across Snohomish and King counties.
Our Heating Services
From cooling and heating to advanced heat pumps and full HVAC care, Montanos delivers complete solutions for Washington homes and businesses.
Furnace Replacement
Got Questions? We've Got Answers!
How often should I schedule furnace maintenance?
What does a professional furnace tune-up include?
Can regular maintenance extend the life of my furnace?
What are the signs my furnace needs maintenance right away?
Why is professional maintenance better than DIY cleaning?
Common Problems Prevented with Routine Tune-Ups
- Clogged Filters – Prevent restricted airflow that leads to poor efficiency and uneven heating.
- Dirty Burners – Avoid buildup that can cause weak heat output or system shutdowns.
- Worn Components – Catch failing parts early to prevent sudden breakdowns.
- Ignition Issues – Identify and fix pilot or ignition problems before they leave you without heat.
- Thermostat Malfunctions – Ensure accurate temperature readings for consistent comfort.
Routine tune-ups help you avoid these problems while lowering energy bills and extending your furnace’s lifespan.
Schedule Your Furnace Maintenance Today
Call (425) 314-1814 now to book your professional tune-up and keep your furnace running efficiently all season long.

