Coast Builders Group is a family-owned design-build company that is built as a father-and-son team with over 20 years of experience serving Altadena and greater Los Angeles. Our hearts are with the families who have lost their homes, and we’re committed to showing up with compassion, clarity, and reliable support as the community rebuilds.

We provide residential design, permitting and plan coordination, and general contracting services for remodels, additions, ADUs, and ground-up residential construction. Our team manages the full process from early planning and drawings through estimating, budgeting, scheduling, and on-site execution. So clients have one accountable team from start to finish.

We prioritize honest communication, high-quality craftsmanship, and respectful jobsite management, with a focus on protecting the homeowner experience and delivering durable, long-lasting results.