Cai Construction San Francisco CA
Business Overview
Cai Construction San Francisco CA is a licensed general contractor (License B) and plumbing contractor (C-16) serving homeowners and small businesses across San Francisco and San Mateo County. The company handles both residential and commercial projects, from quick plumbing repairs to multi-room additions and ADU construction. They offer emergency plumbing service and respond to urgent calls when possible.
The crew is a small team of licensed tradespeople and project managers. Staff are bonded and insured, and the office schedules free estimates for local jobs. Typical hours are Monday–Saturday, 8:00 AM–5:00 PM, with Sunday closed.
Key Services
Cai Construction focuses on practical building and plumbing work that fits Bay Area homes and properties. Main service groups include:
- Plumbing: inspections, repairs, drain and sewer repairs, water heater and sump pump installation, gas line work, faucet, sink, toilet, and garbage disposal installation.
- Remodeling & Additions: kitchen and bathroom remodels, bedroom and laundry room updates, new room and story additions, guest houses and ADUs.
- New Construction & Structural: single-family homes, detached garages, foundation and structural repairs, deck, patio, porch, and balcony construction.
- Special projects: balcony additions, garage remodels, landscaping-related construction, and manufactured or modular home work.
Areas Served
Primary service area includes San Francisco and the wider San Mateo County. Cai Construction also serves Moss Beach CA and nearby coastal communities, offering site visits and estimates for properties on bluffs, hillsides, and typical San Francisco lots.
Company History
The company began as a small contractor operation focused on plumbing and grew to include general contracting. Over time the team added licensed tradespeople and expanded services to full remodeling and new construction. Projects range from single-day plumbing fixes to multi-month additions and ADU builds.
The company learned to work with San Francisco’s narrow lots, steep streets, and local permit requirements. That practical experience is reflected in their approach to planning and scheduling.
Leadership
Leadership includes the owner, a Bay Area–based licensed general contractor with the C-16 plumbing specialty. They bring local building knowledge and a hands-on approach to each project. The leadership stays involved with permitting, subtrades, and on-site inspections so projects meet local codes and neighborhood expectations.
Specialties & Highlights
- Licensed: Contractor License B and C-16 plumbing specialty.
- Free on-site estimates for San Francisco and San Mateo County projects.
- Experience with ADUs, balcony additions, and coastal property constraints.
- Bonded and insured crew that handles both plumbing and general construction.
Why Locals Choose Cai Construction
Homeowners in the city and along the coast pick Cai Construction San Francisco CA for straightforward pricing, local permitting know-how, and a team that understands San Francisco weather, fog-driven moisture concerns, and older home construction. The company focuses on clear communication and steady workmanship rather than flashy claims.
To request a free estimate or report an urgent plumbing problem, residents in San Francisco, Moss Beach CA, and surrounding San Mateo neighborhoods can call the office during business hours.
Contact Information
Cai Construction
: San Francisco, CA 94124
Business Services
- Balcony addition
- Bathroom remodeling
- Bathtub installation
- Bathtub repair
- Bedroom remodeling
- Building additions
- Construction design services
- Deck construction
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garage remodeling
- Garbage disposal installation
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Patio, porch, or terrace construction or installation
- Kitchen remodeling
- Landscaping building construction
- Laundry room remodeling
- Guest house or ADU construction
- Detached garage construction
- Manufactured home construction
- Modular home construction
- Single-family home construction
- New structure construction
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Remodeling
- New room addition
- Bathroom addition
- Bedroom addition
- Common area addition
- New room design
- Garage addition
- Kitchen addition
- Laundry room addition
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- New story addition
- New story design
- Structural repair
- Sump pump installation
- Sump pump repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
| Mon: | 8:00 AM - 5:00 PM |
| Tue: | 8:00 AM - 5:00 PM |
| Wed: | 8:00 AM - 5:00 PM |
| Thu: | 8:00 AM - 5:00 PM |
| Fri: | 8:00 AM - 5:00 PM |
| Sat: | 8:00 AM - 5:00 PM |
| Sun: | Closed |













