HVAC companies in Walnut, CA 91789
9 HVAC companies, with local market data for this ZIP.
General contractors 30HVAC 9Concrete and masonry 4Garage doors 3Roofing and exteriors 3Electricians 3Carpentry, drywall and windows 2Other construction trades 2Fences and decks 2Remodeling 2Flooring and tile 2
Area profitability, HVAC67 / 100Strong market, crowded field
Typical home value$1,128,000+1.4% in the past year
New homes permitted, 202522,250Los Angeles County
Homeowners82.1%12,716 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Air CareSaverHVAC contractor · 245 Paseo Sonrisa, Walnut(626) 425-4711 · aircaresaver.com
Air-Cold HVACHVAC contractor · 380 S Lemon Ave, Walnut(626) 633-6408 · Air-coldhvac.com
Airtong Heating & CoolingHVAC contractor · 20739 Lycoming St, Diamond Bar(626) 780-3666 · airtong123.wixsite.com
AisniHVAC contractor · 20475 Yellow Brick Rd, Walnut(909) 977-0023 · aisniusa.net
Allstar Heating & Air Inc.HVAC contractor · Empire Prep Services, 4010 Valley Blvd, Walnut(626) 217-0966 · allstarheatingandairinc.com
Especial 't' Hvac Sheet Metal FittingsHVAC contractor · 19844 Quiroz Ct, Walnut(909) 869-9150 · especialt.com
I GO Heating & Air ConditioningHVAC contractor · 3745 Valley Blvd, Walnut(909) 837-7779 · igoair.wordpress.com
WeatheriteHVAC contractor · 21211 Commerce Pointe Dr, Walnut(909) 598-8900 · weatherite.com · 1 driver
Goodman City of IndustHVAC contractor · 20035 E Walnut Dr N, Walnut(323) 219-6192
HVAC in ZIP 91789 at a glance
Local building angle: Los Angeles County permitted 22,250 new homes in 2025, including 10,633 apartment units. 6% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.