Airtong Heating & Cooling
HVAC contractor in Diamond Bar, CA 91789
About this company
Airtong Heating & Cooling is listed as an HVAC contractor at 20739 Lycoming St in Diamond Bar, California, in Los Angeles County. It is one of 9 HVAC companies in ZIP 91789.
Other HVAC companies nearby
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0.8 mi(626) 425-4711
Goodman City of Indust20035 E Walnut Dr N, Walnut
0.9 mi(323) 219-6192
Weatherite21211 Commerce Pointe Dr, Walnut
1.1 mi(909) 598-8900
Budget Air Conditioning & Heating1249 S Diamond Bar Blvd, Diamond Bar
2.2 mi(626) 915-6661
Don's Plumbing Service No:219503 Galeview Dr, Rowland Heights
2.2 mi(626) 964-4903
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.