Whether one speaks of rolling hills of Orinda and Lafayette or the coastal fringes of Richmond and Martinez, the terrain of the Contra Costa County is as diversified as beautiful — and that diversity causes its own drainage problems. Intensive downpours on steep slopes occur during heavy rains whereas the flat valley districts have a way of trapping the water which leaks out in lawns, basements as well as crawl spaces.
We combine engineering accuracy and harmony with the landscape that keeps your property functional and attractive. Running off hillside, flooding the yard or the basement, we shape each system to the terrain and type of soil of your property- developing a clear cut solution that blends with the surrounding natural environment.

Even an ideal drainage system can use seasonal inspection even in an area with changing soil and seasonal rainfall such as the Contra Costa County. Your system is maintained by our programs that ensure that it is clean, efficient, and storm ready.
Drainage Inspections- Annual: We check out all lines, slope and outlets of debris, clog or settling problems.
Pre-Rainy-Season Preparation: We maintain and clean systems in advance of winter storms to make sure they are fully ready when you need it the most.
Adaptive Upgrades: We renovate the old drainage systems when necessary to accommodate the alterations in the weather patterns and the intensity of the precipitation.
This preventive service will help you to keep your system to protect your home, lawn and foundation with little maintenance and maximum dependability.
The terrain of Contra Costa County is a combination of coastal, hilly, and valley lands that require drainage systems that can fit the terrain. These are specific regional issues to which our custom solutions provide an answer that is narrowly focused and attentive.
Our drainage systems are designed in layers, which regulate water runoffs, stabilize the soil as well as safeguard the retaining walls.
In case of lower-lying areas, we will use surface drains in combination with underground piping to remove standing water and avoid stress on the foundations.
Our design forward practices ensure that your outdoor areas are functional, appealing and free of floods.

An effective drainage system must be effective in its operations without interfering with the beauty of your backyard. Homeowners are too frequently reluctant to install drainage due to their concern with the appearance of visible pipes or ugly grates.
We deal in systems that blend in with your landscape. We maintain water control through decorative channel drain, subsurface piping and minor grading which do not make your lawn look any different. Your lawn remains green, smooth and attractive – there are no pits, no soil erosion, and no concessions.
It does not take long before water that accumulates outside your foundation walls gets in. Small cracks may allow the moisture to enter basements causing the growth of mold, odors, and expensive repair.
We also install full systems of water control- such as perimeter drains, sump pumps and waterproof barriers to prevent the leaks at their beginning. The outcome is a clean, dry, and safe basement even when the rain falls a lot and in the Contra Costa County.
Had a great experience working with Kyndell from Golden Bay Foundation Builders. I recently purchased the home and was looking for help with earthquake retrofitting options. He inspected my foundation carefully and determined that past bolting was likely adequate. He had suggestions about monitoring the foundation. He was very thoughtful and detailed in his approach, and worked to determine what was best for the home. In this case, that meant no need for additional work now. But if I need any additional assistance in the future, will be calling him again.
We needed crawl space repairs due to pests and moisture damage. They sealed it up, reinforced the beams, and added vapor barriersnow it’s dry and structurally sound. Excellent service from start to finish!
Our home needed retrofitting, and they did an amazing job reinforcing the foundation. They preserved the home’s character while making it structurally sound. If you need an expert who respects older homes, these are your guys.
We had a terrible experience with another contractor before finding these guys. They corrected the shoddy work, fixed our foundation properly, and treated us with respect. Finally, a business that stands by their word and does quality work.
We had a sinking foundation that caused doors to stick, but they fixed it with piers and proper leveling. Their team was professional, answered all our questions, and even followed up afterward. No more sticking doorsjust a solid, stable home.
A quick inspection by the crew revealed minor cracks that could’ve turned into big problems. They fixed them affordably and even gave tips to prevent future issues. So glad we called them before things got worse proactive and professional!
I was hesitant about foundation repair costs, but they gave a fair quote and stuck to itno surprise fees. Their crew worked fast, cleaned up perfectly, and even explained how to maintain our foundation. Honest and skilled highly recommend!
They saved us from a potential disaster when they spotted foundation issues during our home inspection. Their repair plan was clear, and the work was done efficiently without cutting corners. Now our floors are level, and we have peace of mind, great job!
The retrofitting work they did on our older home was top notch. They reinforced our foundation properly and even fixed some drainage issues we didn’t realize were affecting it. Their crew was efficient and left the site clean couldn't be happier with the results.
We’re here to help! Swiftly addressing these concerns is key. Our experts will promptly inspect and repair your foundation, ensuring the lasting strength and safety of your home. Reach out without hesitation for reliable assistance.






We are happy to service communities throughout the East Bay Area and beyond.

Restore stability, fix cracks, and reinforce your foundation for lasting structural integrity

Thoroughly assess foundation health, identify issues, and provide expert recommendations for maintenance.

Ensure a healthy crawl space environment by addressing moisture, insulation, and structural concerns.

Replace damaged or compromised structural elements with precision and quality craftsmanship.

Strengthen your property to withstand seismic activity, safeguarding against potential earthquake damage

Expertly repair and reinforce stem walls to maintain the overall stability of your property.

Efficient drainage solutions to manage water runoff and prevent issues such as flooding and soil erosion. Our expert team designs and installs drainage systems tailored to your property's needs, ensuring effective water management.

Stabilize sinking foundations with push piers that reach load-bearing soil. Restore structure and prevent further settlement.

Fully replace failing foundations with expert craftsmanship and durable materials for lasting structural strength.

Install helical and push piers to support foundations, lift settled areas, and ensure long-term stability.

Repair damaged beams, replace supports, and level flooring to restore the integrity of pier and beam foundations.

Strengthen weak foundations by adding support beneath them, preventing movement and future damage.

Fix cracks and unevenness in slab foundations to restore level surfaces and prevent structural issues.

Improve ground support by treating unstable soil, reducing foundation movement and settlement risks.

Trust our certified experts to retrofit soft-story buildings with precision, meeting all seismic safety standards.
Golden Bay Foundation Builders: Your Bay Area Foundation Pros. At Golden Bay Foundation Builders, we embody the essence of professionalism and steadfast dedication to excellence. Our unwavering commitment to providing top-tier foundation solutions reflects our core values and drives every aspect of our work. Searching for a foundation repair specialist near you? Give us a call.
Contractor’s License #1112835
Bond: #66828987
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94 reviews