
Heat Pumps

-
Evolution™ Extreme 24 Variable-Speed Heat Pump
284ANV
COOLING EFFICIENCY: Up to 22 SEER2
HEATING EFFICIENCY: Up to 10.5 HSPF2
COMPRESSOR TYPE: Variable-Speed -
Evolution™ Variable-Speed Heat Pump
288BNV
COOLING EFFICIENCY: Up to 18.5 SEER2
HEATING EFFICIENCY: Up to 9 HSPF2
COMPRESSOR TYPE: Variable-Speed -
Preferred™ 2-Stage Heat Pump with Intelisense™ Technology227TBN
COOLING EFFICIENCY: Up to 16 SEER2
HEATING EFFICIENCY: Up to 7.8 HSPF2
COMPRESSOR TYPE: Two-Stage -
Preferred™ Single-Stage Heat Pump
225S
COOLING EFFICIENCY: Up to 15.2 SEER2
HEATING EFFICIENCY: Up to 8.1 HSPF2
COMPRESSOR TYPE: Single-Stage -
Preferred™ Single-Stage Heat Pump with Intelisense™ Technology
246SAN
COOLING EFFICIENCY: Up to 16 SEER2
HEATING EFFICIENCY: Up to 7.8 HSPF2
COMPRESSOR TYPE: Single-Stage -
Preferred™ Compact Heat Pump
38MURA
COOLING EFFICIENCY: Up to 18 SEER2
HEATING EFFICIENCY: Up to 9.8 HSPF2 -
Legacy™ Single-Stage Heat Pump
215S
COOLING EFFICIENCY: Up to 15.5 SEER2
HEATING EFFICIENCY: Up to 8.1 HSPF2
COMPRESSOR TYPE: Single-Stage -
Legacy™ Single-Stage Heat Pump
235SAN
COOLING EFFICIENCY: Up to 16 SEER2
HEATING EFFICIENCY: Up to 7.8 HSPF2
COMPRESSOR TYPE: Single-Stage -
LEGACY™ SINGLE-STAGE COASTAL HEAT PUMP
215SAN***C
COOLING EFFICIENCY: Up to 16 SEER2
HEATING EFFICIENCY: Up to 7.8 HSPF2
COMPRESSOR TYPE: Single-Stage -
Legacy™ Single-Stage Coastal Heat Pump
235SAN
COOLING EFFICIENCY: Up to 16 SEER2
HEATING EFFICIENCY: Up to 7.8 HSPF2
COMPRESSOR TYPE: Single-Stage

Built on Trust. Powered by Expertise.
-
From emergencies to routine calls, our team is always ready, day or night, to restore your comfort quickly.
-
We offer flexible financing and value-packed memberships to keep your home running smoothly all year.
-
Your home is in safe hands with fully certified technicians and reliable, code-compliant service.
-
Serving Snohomish and King County with trusted, community-focused HVAC and electrical expertise.

Hear From Our Happy Customers
At ONESTOP, your satisfaction is our priority! See for yourself what our customers have to say about working with us.
-
This company fixed a refrigerant leak that was left by a larger company in the area. They did it at a reasonable rate, they were friendly, knowledgeable, and perform the work in a timely manner. 10 out of 10 recommend.- Michael B.
-
I used them for maintenance on my furnace and AC. They explained things well, were polite & professional. It was scheduled quickly and the price was good.- Jon E.
-
It was amazing to watch OneStop Heating's team in action. Heat pumps are not small investments so it makes all the difference to know you've got a quality installation and the company will back its work with a sound maintenance program.- Ann M.
-
I have to say thank you to Adam for coming out and getting us all fixed up and running again. He is very professional and very knowledgeable, and got the job done quickly. I will definitely be using him from here on out. Great guy for sure!!- Tony N.
-
They serviced my furnace and AC, and they were on time and super friendly. I would highly recommend Onestop all my family and friends.- Joshua F.
-
Adam and Gram did an amazing job with our HVAC setup. They were professional, efficient, and knew their stuff. The new system was installed quickly, and they made sure we understood everything before they left. Great experience from start to finish.- Michael B.
-
He pointed out some conditions that function best with regular inspection and recommended their maintenance program.- Missy A.
-
I recently hired Onestop for a furnace repair, and I couldn't be happier with the service they provided. From the moment I contacted them to the completion of the repair, Onestop demonstrated professionalism and expertise that exceeded my expectations.- Ashley N.