Allstar Heating & Air Inc.
HVAC contractor in Walnut, CA 91789
About this company
Allstar Heating & Air Inc. is listed as an HVAC contractor at Empire Prep Services, 4010 Valley Blvd in Walnut, California, in Los Angeles County. It is one of 9 HVAC companies in ZIP 91789.
Other HVAC companies nearby
Air CareSaver245 Paseo Sonrisa, Walnut
1.7 mi(626) 425-4711
Weatherite21211 Commerce Pointe Dr, Walnut
1.7 mi(909) 598-8900
I GO Heating & Air Conditioning3745 Valley Blvd, Walnut
2.4 mi(909) 837-7779
Airtong Heating & Cooling20739 Lycoming St, Diamond Bar
2.4 mi(626) 780-3666
Mike's Heat & Air Conditioning22839 Dry Creek Rd, Diamond Bar
2.5 mi(909) 396-4489
Housing market around ZIP 91789
Figures describe the local area, not this company.
Typical home value$1,128,000+1.4% past year · +66% in 10 years
Typical rent$3,890+3.1% past year
12-month value outlook+1.5%
New homes permitted, 202522,250Los Angeles County
Days to sale agreement26Los Angeles metro · 28 a year ago
Listings with a price cut24.4%Los Angeles metro
Sale price vs list99.9%Los Angeles metro
New construction sales217Los Angeles metro, Aug · +5% from last year
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
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.