About Vencon

We specialize in doors and finish carpentry, bringing extensive field experience and a streamlined approach to every project. Our team of skilled union labor and experienced project managers ensures efficiency at each phase. As a general contractor, we pride ourselves on our ability to integrate seamlessly into the workflows of large contractors, making us an ideal partner for multi-unit residential projects in the Bay Area. Vencon is a fully operational firm, certified as a Micro-LBE (Local Business Enterprise).

Who We Are

Gerrit Veneman, CEO


Gerrit has over 20 years of experience in the construction industry. He started as an apprentice carpenter, graduating from the Northern California Carpenters Training Center with a journeyman’s certificate. He has held roles ranging from carpenter, foreman, superintendent, senior superintendent and union signatory contractor. Gerrit’s role involves field operations, client relations, estimating and ensuring the delivery of high-quality construction.

Diego Martinez, Project Manager


Diego has a broad background in the construction industry, with experience in all phases at several large Bay Area firms. Holding a B.S. in Construction Management, he has contributed to planning and completing projects on schedule and within budget. His career began as a field engineer intern, and has since progressed through roles in general contracting and project management. Diego's work in project management included estimating, deepening his knowledge of cost and budget management. Recently, as an owner’s representative, he managed projects for international clients, overseeing from lease acquisition to project turnover.

Our Services

General Construction

Doors, Frames, and Hardware
Commercial Tenant Improvements
Finish Carpentry
Casework and Architectural Paneling
Union Labor

Project Management

Quality
Assurance
Budget
Control
Project
Safety
Subcontractor Management
Document Control
Schedule Performance

Divisions

Doors, Frames & Hardware

Installation of Hollow Metal Doors and Frames, Wood Doors and Frames, Aluminum Doors and Frames

Finish Carpentry

Installation of Baseboard, Stair Skirt, Window Sills, Handrails, Casing and Trim

Casework & Paneling

Installation of Kitchen Cabinets, Bathroom Vanities and Decorative Paneling

Union Labor

Supply of Union Labor for Various Tasks via Bid or T&M

General Contractor · San Francisco Bay Area

Doors, Finish Carpentry & Casework

San Francisco general contractor specializing in interior construction for multi-unit residential and commercial projects. Micro-LBE certified. CA General B Lic #1096244.

CA General B Lic #1096244 C-6 Cabinet, Millwork & Finish Carpentry C-61/D-28 Doors, Gates & Activating Devices Micro-LBE Certified SBE Certified North Coast States Carpenters Union San Francisco, CA

Who We Are

General Contractor.
Specialty Focus.

We bring the precision of a specialist with the accountability of a licensed general contractor.

Vencon Construction is a San Francisco-based general contractor specializing in doors, frames, hardware, finish carpentry, and casework for multi-unit residential and commercial projects across the Bay Area.

We hold a California General B license and deploy skilled journeymen and apprentices through North Coast States Carpenters Union. As a certified Micro-LBE and SBE firm, we help project teams meet participation goals on public and affordable housing projects — without sacrificing quality, schedule, or communication.

Our leadership brings 20+ years of Northern California construction experience, from apprentice to superintendent. We know what it takes to deliver clean work on a tight schedule because we've been doing it from the field up.

0+
Years Experience
0%
Union Craft Labor
LBE
Micro-LBE & SBE Certified
Gen B
CA Licensed General Contractor

Services

What We Build

Four core divisions, all delivered with union labor and dedicated project management.

Doors, Frames & Hardware

Hollow metal, wood, and aluminum doors and frames for commercial and residential scopes. Full supply and install — we coordinate with hardware suppliers to deliver turnkey door packages on schedule.

Finish Carpentry

Baseboard, casing, window sills, chair rail, stair skirt, handrails, and decorative trim.

Casework & Paneling

Kitchen cabinets, bathroom vanities, closet systems, and architectural wood paneling for multi-unit residential. We install to spec and coordinate with countertop and appliance trades.

General Construction

Licensed California General B contractor. Available as prime or specialty contractor depending on project needs.

Projects

Our Work

Multi-unit residential and commercial interior construction across the San Francisco Bay Area.

Multi-Unit Residential — Door Package

Doors, Frames & Hardware

Finish Carpentry — Trim & Base

Finish Carpentry

Custom Casework Installation

Casework & Paneling · San Francisco

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How We Work

Built for Partnership

A contractor you can put on the schedule and not worry about.

01

Bid & Preconstruction

We review drawings, walk the site, and deliver a detailed scope and price within your timeline. We ask the right questions early so there are no surprises later.

02

Submittals & Coordination

We handle submittals, procurement, and coordination with adjacent trades before we ever mobilize. When we show up, we're ready to install — not waiting on materials.

03

Installation

Dedicated project management and skilled union carpenters on-site. Daily logs, clean work areas, and proactive communication with your superintendent.

04

Punch & Close-Out

We self-inspect before you do. Punch list items addressed within 48 hours. As-builts, warranties, and final documentation delivered at project completion.

Qualifications

Licensed, Certified, Ready

The data that matters for prequalification.

Contractor License

General B

CSLB #1096244 — California General Building Contractor. Verify at cslb.ca.gov

Specialty License

C-6

Cabinet, Millwork & Finish Carpentry

Specialty License

C-61 / D-28

Doors, Gates & Activating Devices

LBE / SBE Certification

Micro-LBE

City of San Francisco Micro-LBE and SBE certified. Counts toward participation goals on public and affordable housing projects.

Union Affiliation

NCSCU

Signatory contractor with Northern California Carpenters Regional Council, North Coast States Carpenters Union. Full prevailing wage compliance.

Insurance

Fully Insured

General Liability, Workers' Compensation, and Umbrella coverage. Certificate of Insurance available on request.

Safety

IIPP Compliant

Written Injury & Illness Prevention Program. OSHA 10/30 certified field staff. Zero-incident commitment.

Capability Statement

Available

One-page capability statement with license, insurance, scope, and references. Request a copy

SBE Certified Badge San Francisco LBE Certified Northern California North Coast States Carpenters Union LBE Certified Badge

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Contact

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Location

San Francisco, California

Service Area

San Francisco, San Mateo, Marin, Alameda, Contra Costa, and Santa Clara counties