All Climate Heating & Air Conditioning

All Climate Heating & Air Conditioning has kept homes comfortable in Mountlake Terrace and across King and Snohomish Counties since 1993. This full-service HVAC contractor operates 24 hours a day, seven days a week with a dedicated answering service, ensuring residents of Seattle, Bellevue, Bothell, Kirkland, Edmonds, Lynnwood, and surrounding communities can reach them anytime for heating or cooling emergencies. With a perfect 5.0-star rating from 155 verified reviews, the company has built its reputation on technical expertise and transparent communication. Their service menu spans residential and light commercial systems, including traditional forced-air HVAC, boilers, radiant floor heating, and ductless mini-split installations.

What distinguishes All Climate from neighboring contractors is their breadth of brand partnerships and specialized capabilities. As a Bryant dealer, they install variable-speed systems engineered for Pacific Northwest efficiency. Their indoor air quality lineup includes the Air Scrubber by Aerus, a contractor-exclusive technology that treats airflow throughout the home. The company also handles electrical work, including generator installation, panel upgrades, and carbon monoxide detector wiring, plus water heater services covering traditional tank, tankless, and heat pump models. This multi-trade expertise means homeowners can consolidate vendors rather than coordinating separate contractors for related home systems.

The customer reviews consistently highlight technician Qi (also referred to as QI in reviews), who has solved problems that eluded other contractors. One homeowner described how Qi identified the root cause of a furnace issue that two other highly-rated companies had failed to resolve. Another customer with a wine refrigeration split system, described as difficult to find service for in the Seattle area, praised Qi's diagnostic ability and communication throughout the repair. A third reviewer noted Qi's bilingual communication in English and Chinese, which made technical explanations clear and accessible. These named experiences illustrate why 155 reviewers awarded perfect scores.