Custom Insulation
General contractor in El Cajon, CA 92021
About this company
Custom Insulation is listed as a general contractor at 1217 Greenfield Dr in El Cajon, California, in San Diego County. It is one of 62 general contractors in ZIP 92021.
Other construction companies nearby
Nielsen Builders1220 Greenfield Dr, El Cajon
Under 0.1 mi(619) 719-7127
Castaneda & Associates Inc.1260 N 2nd St, El Cajon
0.2 mi(619) 365-1283
Deep Blue Construction1274 Bostonia St, el cajon
0.3 mi(619) 443-8726
Nielsen Painting1241 Linalda Dr, El Cajon
0.4 mi(619) 444-9415
Corbin Construction1549 Drell Ct, El Cajon
0.4 mi(619) 571-3002
Housing market around ZIP 92021
Figures describe the local area, not this company.
Typical home value$772,000−0.4% past year · +72% in 10 years
Typical rent$2,191+0.4% past year
12-month value outlook+0.6%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. 13% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.