Countywide Mechanical Systems
HVAC contractor in El Cajon, CA 92020
About this company
Countywide Mechanical Systems is listed as an HVAC contractor at 1400 N Johnson Ave in El Cajon, California, in San Diego County. Federal motor carrier records list 4 drivers and 2 trucks for the company. It is one of 32 HVAC companies in ZIP 92020.
Other HVAC companies nearby
Sears Parts & Repair Center1406 N Johnson Ave, El Cajon
0.1 mi(619) 590-3812
Air Temperature Specialists1300 N Johnson Ave, El Cajon
0.1 mi(888) 588-1602
Strand HVAC and Air Duct Cleaning1365 N Johnson Ave, El Cajon
0.2 mi(619) 596-2665
Hurn Mechanical Heating & Cooling1568 Fayette St, El Cajon
0.3 mi(619) 312-1924
Air Flex - HVAC & Solar1586 Fayette St, El Cajon
0.3 mi(619) 663-2207
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.