Let's Build Together
Tell us about your project and we'll get back to you with a free, no-obligation estimate.
Get in Touch
Contact 21M Construction
Reach out by phone, email, or the form — whatever's easiest. We typically respond within one business day.
Office
735 Goetschl Street
San Diego, CA 92114
Hours
Mon–Fri: 8:00am – 5:00pm
Sat–Sun: By appointment
(Placeholder hours.)
License
California CSLB #1136864
General Building · Bonded & Insured
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Where We Work
Proudly serving San Diego County
Based in San Diego and serving the surrounding communities. (Service-area towns below are placeholders — we'll confirm 21M's exact coverage.)
San Diego
Chula Vista
La Mesa
El Cajon
National City
Santee
Lemon Grove
Spring Valley
Bonita
Coronado
Poway
La Jolla