Blue Diamond Heating and Air
HVAC contractor in El Cajon, CA 92020
About this company
Blue Diamond Heating and Air is listed as an HVAC contractor at 409 Vernon Way in El Cajon, California, in San Diego County. It is one of 32 HVAC companies in ZIP 92020.
Other HVAC companies nearby
Lucky Air Inc2667 Camino Del Rio S Unit 103, San Diego
0.6 mi(619) 343-2515
Surf Bros HVAC2710 Adams Ave, San Diego
0.9 mi(619) 848-3133
California Pro Heating and Air Inc.4388 Texas St, San Diego
1.2 mi(619) 288-5700
Clima Heating and Cooling8280 Clairemont Mesa Blvd Ste 121, San Diego
1.5 mi(858) 261-4905
Carini Home Services825 Washington St, San Diego
1.7 mi(619) 332-5176
Housing market around ZIP 92020
Figures describe the local area, not this company.
Typical home value$824,000+0.3% past year · +73% in 10 years
Typical rent$2,124−0.2% past year
12-month value outlook+0.4%Roughly flat
New homes permitted, 202511,707San Diego County
Days to sale agreement25San Diego metro · 29 a year ago
Listings with a price cut28.8%San Diego metro
Sale price vs list99.3%San Diego metro
New construction sales70San Diego metro, Aug · −1% 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: San Diego County permitted 11,707 new homes in 2025, including 7,311 apartment units. 5% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.