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Whole-House Generators Installation
With our robust whole-house generators, you'll enjoy seamless power continuity, no matter the weather conditions.
Indoor Air Quality Installation
Enhance the health and comfort of your indoor spaces with our specialized services aimed at purifying your air.
Heat Pump Installation and Repairs
Our heat pumps deliver consistent, eco-friendly climate control, perfect for keeping your home comfortable year-round.We have the very best equipment available, From Mitsubishi Heat Pump Installation, American Standard Heat Pump Installation or even Bosch Heat Pump Installation we have you covered.  Take a look at our products page to see more options. 
Gas Fireplaces Services
Elevate your living environment by integrating our sophisticated gas fireplaces, blending style with cozy warmth effortlessly.
Gas Furnaces Repair and Installation
Warm your home with our advanced gas furnaces, offering superior energy efficiency and dependable heating solutions.
Electrical Repair
Upgrade your home's electrical infrastructure with comprehensive services from our seasoned professionals, ensuring safety and reliability.
Air Conditioning Repair Services
Embrace the modern convenience and efficiency of Air Conditioners, tailored for flexible climate control and energy savings. Our Install Teams care about how it looks when it's installed as much as the functionality of keeping your home or business comfortable.
Ductless Mini Split Repair and Installation
Our HVAC solutions in Snohomish County and King County WA are designed for peak efficiency and will help you be comfortable year-round. We have full confidence in Mitsubishi equipment. It's one of the overall best solutions for sound ordinances, monthly savings on utility bills, and getting you heat and cooling when your duct work isn't that good. 

Why Choose Onestop

"OneStop Heating Cooling Electric. We are a hvac service and installation company serving WA state. We pride ourselves on giving you the best service. Having expert employees and modern tools allows us to complete jobs effectively. With Onestop Heating Cooling Electric, we will be your go to for everything hvac or electrical."


We Service All Major Brands

We have been in the industry for over 10yrs and have worked with all brands. You're in good hands


100% Satisfaction Guarantee

We guarantee all our repairs, any part installed by Onestop for a maintenance member is guaranteed for 1 year!


Available 24/7

We will be there anytime your system is down. Maintenance members do take priority.