5 Best HVAC Services in Seattle (2026)

What people praise

• Most-reviewed HVAC company on this page, at 4,773 reviews
• Over a century of local operation in Seattle
• Handles HVAC, electrical and plumbing under one roof
• Technicians walk customers through diagnostics and cost before starting work

Worth knowing

• Some reviewers report pricing on the higher end, especially for repairs discovered mid-job
• A recurring maintenance-plan upsell at the end of service calls, per multiple reviewers

What people praise

• Half a century of family-owned local operation
• Comfort advisors described as honest and clear about the pros and cons of each option
• Clean, respectful installation work noted repeatedly
• Willing to return the same day or next morning for urgent repairs

Worth knowing

• At least one detailed complaint involves an expensive repair where the root cause diagnosis took multiple visits
• Some after-hours calls are answered by an AI assistant rather than a live person

What people praise

• Perfect 5.0 rating across 251 reviews
• Fast turnaround, often next-day even on weekends and holidays
• Handles both HVAC and household appliance repair in one visit
• Technicians named repeatedly for persistence on tricky, older equipment

Worth knowing

• Broader appliance-repair focus means HVAC-specific installs may be a smaller share of its work than the specialists above

What people praise

• In-house electrical team, avoiding the need for a separate subcontractor
• Praised for competitive pricing against larger competitors
• Handles tricky older-home installs, including brick-sheathed and century-old properties
• Crews complete installs in a single visit rather than multiple return trips

Worth knowing

• Younger company than the century-old names on this page, with a correspondingly smaller review history

What people praise

• Three decades of experience, including commercial refrigeration work most residential-only companies don't handle
• Technicians praised for clear explanations without rushing the customer
• Flexible scheduling for out-of-town customers managing repairs remotely
• Long-lasting installs, including a commercial cooler still running well a year later

Worth knowing

• The widest spread of ratings on this page, including a notable share of 1-star reviews alongside the fives