A-1 American Plumbing, Heating and HVAC — Castro Valley

Business Overview

A-1 American Plumbing, Heating and HVAC Castro Valley CA is an owner-operated plumbing and HVAC company serving homes and small businesses across the East Bay and North Bay. The business focuses on clear, practical work for remodeling, repairs, and installations. Emergency service is available for urgent plumbing and heating problems; customers can call for after-hours help when pipes burst or heating fails.

The company is a sole proprietorship with a small local crew. Work ranges from single-room remodels to commercial maintenance checks. The team handles both residential and commercial projects and works with homeowners, property managers, and small business owners.

Key Services

Services are grouped to help find what is needed quickly:

• Plumbing: drain installation and repair, water pipe installation and repair, plumbing inspection, sink, faucet, and toilet installation and repair, garbage disposal repair.
• Gas & Water Heat: gas line installation and repair, water heater installation and repair.
• HVAC: HVAC installation or replacement, system repair, and routine maintenance.
• Remodeling support: plumbing layout and installation for bathroom and kitchen remodels, custom work for additions.

Areas Served

Service areas include Castro Valley, San Lorenzo, Mill Valley, Fairview, Blackhawk, Marin City, Black Point Green Point, Woodacre, and Lagunitas Forest Knolls. A-1 American Plumbing, Heating and HVAC Castro Valley CA responds across the East Bay and into parts of the North Bay, matching local needs for older homes and newer builds alike.

Company History

David LeMay started the business in 1990 after earning his contractor’s license. He built his own custom home in 2004 and has run remodeling and service projects ever since. The business grew slowly by word of mouth. Over 26 years of operation brought steady work with local families and businesses.

The company handles routine maintenance and one-off projects. Its roots are practical: a work ethic learned from family and a hands-on approach to building and repairs.

Leadership

Owner-operator David LeMay manages daily operations. He brings decades of field experience in plumbing, heating, and air conditioning. David stays active in local projects and keeps skills current with industry practices. He is reachable directly for estimates and project questions, keeping the business local and personal.

Specialties & Highlights

• Owner-operated service with direct contact to the technician on the job.
• Experience with both residential remodels and small commercial systems.
• Skilled in gas line work and water heater installations for Bay Area homes.
• Practical troubleshooting and straightforward repair plans.

Why Locals Choose A-1 American Plumbing

Local homeowners and businesses pick this company for steady experience and a personal approach. A-1 American Plumbing, Heating and HVAC Castro Valley CA has a long record of service in the area. The business is known for clear communication, practical repairs, and a focus on work that fits local housing styles and the mild Bay Area climate.

For a direct, local contact who handles the work personally, residents often call A-1 American Plumbing, Heating and HVAC Castro Valley CA for estimates, repairs, and maintenance.