Additions · San Marcos, California
Home Addition Contractor
in San Marcos, CA
Licensed home addition contractor serving California. Ground-level additions, second stories, master suites, and garage additions — all in-house. TDQ Construction has served San Marcos including San Elijo Hills, Discovery Hills, Twin Oaks and surrounding areas since 1987.
Home Addition Contractor in San Marcos
Serving San Marcos and Surrounding Areas
TDQ Construction provides additions services in San Marcos, California. We are a Class A, B, and C-8 licensed contractor — giving us the legal authority to handle the full scope of your project in-house, including any civil, structural, and finish work required.
Most contractors in San Marcos hold only a Class B General Building license, limiting what they can legally self-perform. TDQ's broader licensing means your additions project stays under one accountable team from start to finish.
We serve homeowners and property owners throughout San Marcos including San Elijo Hills, Discovery Hills, Twin Oaks and all surrounding neighborhoods.
Areas We Serve in San Marcos
Home Addition Contractor Throughout San Marcos
Why Choose TDQ
The Licensed Choice for San Marcos
TDQ Construction has been serving California property owners since 1987. Our combination of Class A, B, and C-8 licenses allows us to handle the full scope of any residential or commercial project — without subcontracting work that requires specialized licensing.
When you hire TDQ for additions in San Marcos, you get one team, one contract, and one point of accountability from permit to final inspection.
Call (714) 357-1608Class A + B + C-8 Licensed
Most contractors in San Marcos hold only a Class B license. TDQ holds Class A General Engineering, Class B General Building, and C-8 Concrete licenses — giving us the legal authority to handle every phase of your project in-house.
One Contractor, Full Scope
TDQ manages every trade under one license and one point of contact. No coordination gaps between separate contractors, no accountability gaps, no scheduling delays.
Fully Permitted & Inspected
Every TDQ project in San Marcos is properly permitted and passes all required inspections. Unpermitted work creates liability at resale — we never take shortcuts.
Family-Owned Since 1987
TDQ has built its reputation on referrals since 1987. Every project in San Marcos is treated like our own property — because our long-term reputation depends on it.
Free Estimate
Discuss Your Addition in San Marcos
TDQ Construction provides detailed written estimates before any work begins. Call or email us to discuss your additions project in San Marcos.
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Service Area
Home Addition Contractor Across California
TDQ Construction provides additions services throughout California. Select a city to learn more.
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