15 Best HVAC Companies in Seattle

CM Heating is a Seattle HVAC contractor handling heating and cooling installation, repairs, and on-site service. Its work covers furnaces, air conditioning, heat pumps, gas fireplaces, and related home comfort systems, with technicians able to explain equipment choices and operating differences clearly.

Ballard Natural Gas Service is a Seattle HVAC contractor specializing in residential heating, cooling, heat pump installation, maintenance, and repair. The team also handles electrical work, giving homeowners a broader option when a comfort project involves more than the HVAC equipment itself.

Fuse Service handles residential and commercial heating and cooling in Seattle, including air-conditioning repair, furnace work, heat pumps, mini-splits, and system replacement. The team is geared toward fast diagnostics, with on-site technicians who explain the fault, complete repairs efficiently, and keep the work area orderly.

Repair coverage includes common components such as capacitors, motors, fans, and sealed-system parts. Written estimates can help clarify replacement decisions, while warranty terms depend on the equipment and repair involved.

GREENTOP Heating provides Seattle-area installation, repair, maintenance, and emergency HVAC service for furnaces, air conditioners, heat pumps, and ductless mini-splits. Its online estimate tool gives homeowners an early cost range before an in-home assessment, which can make project planning easier.

Progressive Comfort Solutions specializes in Mitsubishi Electric heat-pump systems for Seattle homes and businesses, from single-room mini-splits to complex multi-zone installations. The process is notably deliberate: the team listens to household priorities, works through placement challenges, and explains design choices in accessible terms before installation.

Glendale Heating & Air Conditioning serves Seattle with furnace, air conditioning, heat pump, ductless, and indoor air quality work. The family-run company handles both repairs and new installations, with free estimates available for new systems and same-day appointments for many repairs.

Brennan Heating, Air Conditioning, & Electric serves Seattle with HVAC installation and repair for furnaces, heat pumps, air conditioners, and water heaters. Its service stands out for organized appointments, punctual technicians, clear system explanations, and careful cleanup after the work.

The team is equipped for both planned replacements and equipment problems that need a quick response. Larger projects may require advance scheduling, so it is worth confirming current availability and the exact scope of service before arranging an appointment.

Olson Energy Service handles heating and cooling work in Seattle, including furnace, air-conditioning, and heat-pump installation and repair. The company’s approach pairs practical scheduling with efficient execution: appointments can be arranged promptly, estimates are explained clearly, and installation crews work quickly while leaving the home tidy.

Go Green Heating AC & Electric serves Seattle with HVAC installation, repair, and electrical support. The company is especially relevant for ductless and Mitsubishi heat-pump projects, including installations that require coordinated electrical work. Clear proposals, flat-rate repairs, and practical explanations help keep the process understandable from the first estimate through completion.

Leschi Top HVAC Specialist focuses on heating and air-conditioning repair, maintenance, replacement, and residential installation in Seattle. The business is particularly appealing when a furnace or combined heating-and-cooling system needs attention quickly: same-day appointments, advance arrival notices, detailed estimates, and efficient repairs are central to its service profile.

Mark’s Mini Splits concentrates on ductless mini-split and heat-pump installation in Seattle. The service is a natural match for older homes without central HVAC , targeted room comfort, and projects requiring thoughtful placement of indoor units and outdoor equipment. Mark’s approach emphasizes patient explanations, flexible planning, and steady communication from estimate through installation.

Washington Energy Services is a Seattle HVAC contractor with services spanning heating, cooling, electrical, plumbing, and selected home improvements. Its HVAC work includes service, repair, and installation, while heat pump water heater projects provide an option for homeowners planning a broader energy or equipment upgrade.

Make It Wright HVAC takes on Seattle heating, cooling, repair, replacement, and custom ductwork projects. Its strongest differentiator is technical problem-solving: the team has addressed difficult airflow, noise, code, and system-design issues rather than limiting the work to straightforward equipment swaps.

Brennan Heating, Air Conditioning, & Electric provides Seattle HVAC installation, repair, replacement, and urgent service for furnaces, air conditioners, heat pumps, and related home systems. Its broader service model is useful when a project involves more than one household system, while on-site technicians focus on practical solutions and clear communication.

Nortech Heating, Cooling & Refrigeration serves Seattle with HVAC installation and repair for furnaces, heat pumps, air conditioning, ductless systems, and commercial refrigeration . Its range is useful for households and businesses that need one provider across comfort equipment and refrigeration, including walk-in cooler repairs and installations.