About Arreglo Construction Inc.
Family-owned design-build general contractor serving the San Francisco Peninsula. We handle structural work directly — not through subcontractors — and deliver projects under a single contract, single price, single timeline.
Company Story
Arreglo means "to fix."
It’s the word you use when something needs to be made right — not replaced with something unrelated, but restored, improved, strengthened. That’s what we do.
We take Peninsula homes that were built sixty to eighty years ago with the materials and methods of their era, and we make them right for the next sixty.
ACI is a family-owned, design-build general contractor based in Pacifica, California. We build ADUs, renovate kitchens and bathrooms, complete whole home renovations, add rooms and second stories, and perform commercial construction — all on the San Francisco Peninsula, all under one contract, and all with our own crew doing the structural work that every project depends on.
Our office is at 188 Clarendon Road in Pacifica. Our crew drives these streets to work. The homes we renovate are in the neighborhoods where we live, where our kids go to school, and where our reputation matters more than any marketing campaign. When we finish your project, we don’t disappear to the next metropolitan area. We’re still here — down the street, answering the phone, standing behind the work.
Six Categories of Work
What We Build
We’re a general contractor, not a handyman service and not a specialty trade. We take on projects that require structural understanding, multi-trade coordination, permitting management, and the ability to handle what’s discovered behind the walls of an older home.
ADU Construction
Detached, attached, garage conversions, and JADUs. New foundations, new framing, new utility connections — complete units from the ground up. We’ve built ADUs across the Peninsula, from flat Linda Mar lots to hillside Pedro Point sites where the concrete has to be pumped uphill.
Kitchen Remodeling
Gut renovations that address the structure, the systems, and the finishes — not cosmetic refreshes. Load-bearing wall removal, beam installation, full electrical upgrades, plumbing replacement, and the cabinetry and finishes that make the kitchen worth living in.
Bathroom Remodeling
Gut-to-studs renovations with proper waterproofing, plumbing replacement, and layout modifications. Tub-to-shower conversions, primary suite creation, and aging-in-place accessibility — built to last in Pacifica’s fog-corridor moisture environment.
Whole Home Renovations
Foundation to finishes. Every system replaced: plumbing, electrical, insulation, seismic connections, windows. Every surface refinished. The most comprehensive renovation scope we offer — and the most efficient way to modernize a 1950s Peninsula home.
Room Additions & Second Stories
New square footage that integrates structurally and architecturally with the existing home. Second-story additions on hillside lots are among the most complex residential projects on the Peninsula — and among the most rewarding.
Commercial Construction
Restaurant buildouts, tenant improvements, and finish-out construction for Peninsula businesses. The same structural discipline we bring to residential work, applied to commercial spaces where code requirements are more stringent.
How We Work
Design-Build Under One Contract
We design and build under one contract. The people who draw the plans are the people who pour the foundation, frame the walls, and install the beam. There’s no gap between the architect’s vision and the builder’s reality — because they’re the same team.
This matters on the Peninsula more than it matters anywhere else. The homes here are old. The conditions behind the walls are unpredictable. The lots are sloped, narrow, or sitting above variable geology. A designer who doesn’t understand construction will produce beautiful plans that cost 40 percent more than the budget to build. A builder who wasn’t involved in the design will discover conditions that the plans don’t account for and generate change orders.
Our Key Differentiator
We Do the Structural Work Ourselves
Many general contractors are project managers. They coordinate subcontractors, schedule trades, manage the budget, and supervise the work — but they don’t physically build the structure. The framing crew is a sub. The foundation crew is a sub. The shear wall installation is a sub. The general contractor’s value is coordination, not construction.
At ACI, our crew does the structural work directly. Foundation bolting, cripple wall bracing, shear wall installation, beam setting, framing, and the connections that tie everything together — this is our work, performed by our people, under our direct supervision. We sub out the licensed specialty trades (electrical, plumbing, HVAC) to long-term partners we’ve worked with for years. But the skeleton of your home — the structure that carries every load, resists every earthquake, and determines whether the building stands for another sixty years — that’s us.
When the crew doing the structural work is the same crew that assessed the site, designed the solution, and will be accountable for the result, the quality of that work is different. Not because subcontractors are inherently worse — many are excellent — but because the accountability is unbroken. If the beam doesn’t fit, we don’t call someone else. We fix it. Because it’s our beam, our calculation, our installation, and our name on the project.
Unbroken Accountability
The crew that designed the solution is the same crew that builds the structure and stands behind the result.
Our Crew, Our Supervision
Foundation bolting, framing, beam setting, shear walls — all performed by ACI employees under direct supervision.
Long-Term Trade Partners
Licensed specialty trades (electrical, plumbing, HVAC) are subbed to partners we've worked with for years.
Why It Matters
Structural mistakes are the most expensive and most dangerous. An undersized beam, a missed hold-down bracket, a non-spec foundation — these aren't cosmetic problems.
Five Principles
What We Believe
Start with the structure
Every page on this site leads with what's behind the walls, not what's in front of them. We believe the foundation, the framing, the seismic connections, and the building systems are the project — the finishes are the reward for doing the project right. A beautiful kitchen built above a compromised foundation is a beautiful problem.
Publish what we know
This website contains more than 100,000 words of original content about Peninsula construction — costs, timelines, conditions, code requirements, permitting processes, and structural details for every project type we build. We publish this because we believe informed homeowners make better decisions.
Quote the real number
Our estimates reflect what the project will actually cost — including the behind-the-wall conditions we expect to find, the systems that need replacement, the permit fees, the engineering, and a realistic contingency. A contractor who quotes low to win the contract and recovers the difference through change orders hasn't given you a lower price.
Pull the permit. Always
Every project we build is fully permitted, fully inspected, and fully compliant with the applicable building code. The permit protects you at sale, at insurance claim, and at the next renovation. It protects us by ensuring the work is inspected by a third party who confirms it meets code.
Build what we'd build for ourselves
Our crew lives in these neighborhoods. The homes we renovate are next door to homes our families live in. When we make a construction decision — which beam to specify, how to detail a waterproofing membrane, whether to replace a galvanized supply line — we make the decision we'd make if it were our own house.
The Numbers