HVAC companies in Seattle, WA 98104

2 HVAC companies, with local market data for this ZIP.

Area profitability, HVAC61 / 100Moderate market, balanced field
Typical home value$529,000−4.0% in the past year
New homes permitted, 20258,505King County
Homeowners8.2%9,035 households

Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.

MacDonald-Miller Facility SolutionsHVAC contractor · 1004 Madison St, Seattle(206) 763-9400 · macmiller.com
MM Comfort SystemsHVAC contractor · 800 5th Ave 101 463, Seattle(206) 542-9100 · mmcomfortsystems.com

HVAC in ZIP 98104 at a glance

Local building angle: King County permitted 8,505 new homes in 2025, including 5,102 apartment units. 41% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.