Full HVAC System Services in Marysville & Snohomish County

Your HVAC system is the heart of home comfort, keeping you cool in summer and warm through winter. Montanos provides complete HVAC system care with expert installation, timely repairs, and preventative maintenance designed for Washington families.

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Service Overview

Reliable HVAC Services for Snohomish and King Counties

Montanos offers full HVAC services that cover everything from new system design and installation to routine maintenance and urgent repairs. Our technicians ensure your heating and cooling equipment operates safely and efficiently, reducing the risk of unexpected breakdowns. Many homeowners face rising bills or uneven indoor temperatures when their systems are not maintained. With our full service approach, we help you achieve consistent comfort, lower energy costs, and reliable performance year after year.

Testimonials

What Our Customers Are Saying

Discover how our family-owned HVAC team has transformed homes throughout Snohomish County.

    
 
 
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   mario macandog 
 
 
 
 Trustindex 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 wrong
  
 
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   Jon 
 
 
 
 Trustindex 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.
  
 
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   Wilma Lamoureaux 
 
 
 
 Trustindex verifies that the original source of the review is Google. Wonderful service. Very professional. Honest price. Would recommend this company for any furnace issues.
  
 
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   Roger Prussack 
 
 
 
 Trustindex 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!
  
 
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   Deserien Hines 
 
 
 
 Trustindex verifies that the original source of the review is Google. Joel was very professional and very knowledgeable.
  
 
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   Mike Thomas 
 
 
 
 Trustindex 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!
  
 
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   Isaac Hoag 
 
 
 
 Trustindex 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.
  
 
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   Pratik Mankad 
 
 
 
 Trustindex 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.
  
 
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   Alex Crawford 
 
 
 
 Trustindex 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.
  
 
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   Leslie Hayden 
 
 
 
 Trustindex 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.

Featured Project

Recent Success Story

Take a look at one of our recent HVAC installations that showcases our craftsmanship and efficiency.

The Best In Hvac

The Advantage of Working with Montanos

Dedicated to delivering lasting comfort and dependable service.

Comprehensive Expertise

We handle furnaces, air conditioners, ductwork, and thermostats with precision.

Efficiency Focused

Our services are designed to reduce energy waste and improve indoor comfort.

Local Experience

Serving Snohomish and King Counties with knowledge of Washington homes and climate.

Schedule Complete HVAC Service Today and Keep Your Home Comfortable Year Round

How It Works

How We Deliver Complete HVAC Service

A simple approach that ensures quality results.

System Evaluation

We check your HVAC equipment and identify the best solutions.

Professional Service

Our certified technicians complete installation, repair, or maintenance with care.

Final Testing

We confirm performance and provide guidance for ongoing comfort and efficiency.

Serving Your Community

Areas We Serve

From our home base in Marysville, we proudly deliver HVAC services across Snohomish and King counties.

What we do

Our Other HVAC Services

From cooling and heating to advanced heat pumps and full HVAC care, Montanos delivers complete solutions for Washington homes and businesses.

Cooling

Reliable cooling makes summer comfortable. Montanos provides AC installation, repair, and maintenance to fix problems like hot spots, weak airflow, or rising energy costs. We install efficient systems that restore comfort and reduce utility bills.

Heating

Stay warm through Washington winters with our expert heating services. We install, repair, and maintain furnaces and heat pumps, solving issues like uneven heat or outdated systems. Montanos ensures safe, reliable, and energy-efficient heating for your home.

Heat Pump System

Heat pumps provide efficient heating and cooling in one system. Montanos installs, repairs, and maintains both ducted and ductless models. If you struggle with high bills or uneven comfort, we deliver energy-saving solutions that keep your home comfortable year-round.

Mini Splits

Mini splits offer zoned comfort without ductwork. Our technicians design and install efficient ductless systems perfect for older homes or additions. We replace wasteful or outdated equipment with modern mini splits that improve comfort and lower costs.

Full HVAC System Service

Montanos delivers complete HVAC care, including installation, repair, and maintenance for furnaces, AC units, ductwork, and thermostats. We solve problems like frequent breakdowns and rising energy bills, ensuring efficient, reliable comfort year-round.

FAQs for Our Full HVAC System Service

Got Questions? We've Got Answers!

What does full HVAC system service include?

Our service covers installation, repair, and maintenance for your entire heating and cooling system, including furnaces, AC units, ductwork, and thermostats.

How often should I have my HVAC system serviced?

We recommend at least twice a year, once before summer and once before winter, to ensure efficient and reliable operation.

What are signs my HVAC system needs service?

Uneven temperatures, unusual noises, weak airflow, or higher energy bills are common indicators your system requires professional attention.

Do you service both residential and commercial HVAC systems?

Yes. We provide complete HVAC care for homeowners and light commercial properties throughout Snohomish and King Counties.

Why is professional HVAC service important?

Proper service improves efficiency, extends equipment life, prevents costly breakdowns, and ensures your home stays comfortable year round.

More To Learn

Advantages of Full System Care Over Single Repairs

Focusing only on single repairs often fixes the immediate problem but leaves underlying issues unresolved. Full HVAC system care looks at the bigger picture, addressing heating, cooling, ductwork, and controls together. This approach improves efficiency, reduces the chance of repeated breakdowns, and helps your system last longer. By investing in complete service, you gain year-round comfort and save money compared to scheduling frequent, isolated repairs.

Get In Touch

Get in Touch With Montanos

Need complete HVAC service for your home or business? Call (425) 314-1814 today to schedule your appointment with our team.