Home & Room Additions

Expand Your Living Space with Confidence

At Full Steam Ahead Construction & Plumbing, we specialize in creating seamless home additions that blend perfectly with your existing space. Whether you need an extra bedroom, a larger kitchen, a second-story addition, or more functional living areas, our team delivers design and construction solutions tailored to your lifestyle.

Room Additions – Add square footage to your home with bedrooms, offices, playrooms, or family spaces.

Second-Story Additions – Build upward to maximize your property’s footprint.

Kitchen Expansions – Create a larger, more functional kitchen for cooking and entertaining.

Bathroom Additions – Add comfort and convenience with new full or half bathrooms.

Garage & ADU Conversions – Transform unused spaces into income-generating or functional living areas.

Custom Designs – Every addition is customized to match your home’s style and your personal vision.

Why Choose Us?

  • Decades of combined experience in construction, plumbing, and remodeling

  • Fully licensed and insured team

  • 3D design renderings and detailed project planning

  • Code-compliant and high-quality craftsmanship

  • Transparent communication from start to finish

Serving San Francisco East Bay Area

From San Francisco to the East Bay, homeowners trust Full Steam Ahead Construction & Plumbing for high-quality home additions. Whether you’re expanding your living space, adding a new bedroom, or building a second story, we deliver seamless construction with clear communication, honest work, and attention to detail that stands the test of time.

  • Concord

  • Walnut Creek

  • Pleasant Hill

  • Martinez

  • Benicia

  • Brentwood

  • Moraga

  • Lafayette

  • Orinda

  • Danville

  • San Ramon

  • El Cerrito

  • Richmond

  • Berkeley

  • Oakland

If you're located in or near these areas—and in select parts of Solano County and Alameda County—and looking for a trusted additions construction, our team is ready to help—on time, on budget, and with top-tier craftsmanship.

Adding space to your home is one of the best ways to increase both comfort and property value. With Full Steam Ahead Construction & Plumbing, you’ll have a trusted partner who can handle everything—from design and permits to construction and finishing touches.

Ready to expand your home? Contact us today for a free consultation.