General Contractor in San Marino
Any San Marino project that involves structural work, a permit and more than one trade requires a licensed general contractor to coordinate it properly. Most homes here were built between 1920 and 1950, after the Shorb ranch was subdivided following the city’s 1913 incorporation, and those large older houses on lots that often exceed 30,000 square feet have formal, compartmented floor plans where the kitchen sits well apart from the living areas. Updating a house like that typically pulls framing, plumbing, electrical and finishes into a single job. Horizon Construction and Remodeling is a California Class B general building contractor that handles remodels, additions and new construction in San Marino, managing the permit through the City of San Marino Building and Safety Division, the subcontracted trades and every required inspection from the first drawing to the final sign-off.
Services We Offer
Room Additions & ADUs
Whole Home Remodels
New Construction
About Working with a General Contractor in San Marino
Hiring a general contractor in San Marino means navigating a process that is more involved than in most surrounding cities, and we set that up clearly from the first visit. We come to your property, assess the existing conditions, and put the scope in writing. Because so many homes here date to the 1920s and 1940s, the drawings we prepare often need to account for older structural systems, and we bring in a licensed structural engineer or energy consultant whenever the work requires one. Any exterior change also moves through the City of San Marino’s design review process, so we build that step into the schedule from the start rather than treating it as a surprise. A written home improvement contract covers the work, the payment schedule, and the start and completion dates before anything is ordered.
Selections happen before construction begins, which keeps crews moving without waiting on tile or fixture decisions. We submit plans to the City of San Marino Building and Safety Division, respond to plan-check comments, and pull the permit. One project manager then sequences demolition, framing, and all trade work in order, calls for each inspection, and issues a written change order before any scope adjustment is made. We close the permit, collect lien releases, and walk the finished work with you at the end.
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Permits, Licensing, and Contract Rules Worth Knowing
Permit applications for remodeling work in San Marino go through the City of San Marino Building and Safety Division. What sets this city apart from most neighboring communities is the additional layer of design review and zoning oversight applied to exterior changes. The city guards its residential character carefully, and that scrutiny affects how drawings are prepared and how long plan check can take. We account for those realities before a contract is signed, not after a correction notice arrives.
California’s Class B general building contractor license covers projects that involve at least two unrelated trades, or any framing and carpentry work, on a structure people live or work in. A specialty contractor holding a C-10 or C-36 license can perform skilled work in a single trade, but that classification does not authorize acting as prime contractor on a multi-trade remodel. Before you commit to anyone for work on your San Marino home, search the contractor’s license number on the Contractors State License Board website. Confirm the license is active, held in the right classification, and listed under the company’s legal name. The same record shows whether a bond and workers’ compensation coverage are currently on file.
Home improvement contracts in California are governed by Business and Professions Code 7159. Every contract must be in writing and must include a description of the scope, a payment schedule tied to work actually completed, approximate start and finish dates, and required consumer notices including your right to cancel under certain conditions. Business and Professions Code 7159.5 caps the down payment a contractor may collect and prohibits progress payments that run ahead of completed work. A request for a large sum before work begins is a straightforward warning sign.
Two additional rules apply to most jobs here. Subcontractors and suppliers who go unpaid can record a mechanics lien against your property even when you have paid the general contractor in full, which is why preliminary notices are common during a project. Collecting lien releases as each payment goes out is the standard protection. Separately, homes built before 1978 are common throughout San Marino’s predominantly prewar housing stock, and any work that disturbs painted surfaces falls under the EPA Renovation, Repair and Painting rule, which requires a certified firm to perform that work.
Other Remodeling Services We Offer
A kitchen remodel touches more trades than any other room in the house: layout, cabinetry, plumbing, electrical, ventilation and finishes. Horizon designs and builds kitchen remodels under one contract, from the measured layout to the final inspection.
Whether you envision a classic Southern California pool or a fully customized backyard oasis, Horizon Construction & Remodeling delivers the highest level of quality and service. Our comprehensive pool design and remodeling services cover everything from layout and decking to built-in BBQs and final touches like landscaping. Let Horizon be your trusted partner in transforming your backyard into the perfect outdoor retreat.
If you are planning a complete bathroom remodel or simply want to change your tub, shower, update your plumbing fixtures, or make the space more efficient, our team at Horizon will help you through the process with expert advice, professional craftsmanship, and affordable options with beautiful results. Learn more about our bathroom remodeling services.
Transform your space with our expert interior work services. We offer a comprehensive range of solutions — from space planning and custom design to the selection of high-quality finishes and materials. Our team of experienced professionals works closely with you to create a space that’s both functional and stylish, tailored to your unique needs, goals, and budget. Whether you’re updating a single room or overhauling your entire interior, we bring precision, creativity, and craftsmanship to every project.
At Horizon, we believe your home is more than just four walls — it’s where life happens. It’s the place you relax, gather with family and friends, and create lasting memories. That’s why we offer a full range of exterior work services designed to elevate your outdoor living space. From patios and hardscaping to custom decks and exterior renovations, we help turn your vision into a dream yard that complements your lifestyle and enhances curb appeal.
At Horizon Construction & Remodeling, our expert team includes a dedicated design and planning division that works hand-in-hand with licensed architects and structural engineers. We take care of everything — from detailed plans and blueprints to securing city permits — so you don’t have to deal with delays or red tape. Our goal is to streamline the process and provide a fully approved set of documents that aligns with both your vision and city regulations, saving you time and stress.
Why Choose Horizon Remodeling For General Contractor in San Marino
Horizon has been doing this work since 2009, and the license we carry today is the same one we have carried from the start. We are licensed by the California Contractors State License Board, and we are bonded. The license number on your contract is the same one used to pull permits through the City of San Marino Building and Safety Division, so there is no gap between who planned the job and who is accountable for it.
San Marino’s homes are mostly prewar construction, the majority built between 1920 and 1950, with large lots and formal floor plans that were never designed for the way families live now. Opening up a compartmented kitchen, adding square footage, or converting underused space into an ADU all require coordination across multiple trades and careful permit handling. We manage that coordination under a single contract, with one project manager responsible from drawings and engineering through final inspection.
The city also applies strict design review to exterior changes, which means a general contractor who understands that process is worth having in your corner early. We handle whole-home remodels, room additions, structural work, and new construction, the kinds of projects where one sequencing mistake between trades costs real time and money.
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General Contractor FAQ
Do I need a general contractor for my project in San Marino?
For any project that requires a building permit, involves two or more unrelated trades, or touches framing, California generally requires a licensed contractor holding the appropriate classification, and for multi-trade work that means a Class B general building contractor. You can take the owner-builder route on your own home, but the scheduling, inspections, and any employer obligations for workers you bring on all fall to you. In San Marino, where the City’s Building and Safety Division applies strict design review alongside standard permit requirements, and where most homes date to the 1920s through 1940s on large formal lots that often need careful coordination between trades, most homeowners find that managing all of it is effectively a second full-time job.
Who pulls the permit, and who deals with the inspector?
Yes, Horizon pulls permits directly under our license through the City of San Marino Building and Safety Division and carries responsibility for passing every inspection along the way, from foundation and framing through rough trades to final sign-off. If an inspector flags something, we correct it and schedule the re-inspection. We close out the permit at the end, which puts the work on record with the city and matters when you refinance or sell a home in this market.
How long does a general contractor project take?
Timeline depends on scope and on how the permitting process unfolds in your jurisdiction. Design and engineering for a larger remodel or addition often take several weeks to a few months, and plan check with the City of San Marino Building and Safety Division can add several more weeks depending on workload and how many correction rounds come back. Because San Marino applies strict design review to protect its residential character, exterior changes on the city’s large prewar homes can draw additional scrutiny and extend that review window. Construction on a single-room remodel typically runs several weeks, while a whole-home remodel, addition, or new build usually takes many months. Once the scope is defined, we give you a realistic schedule rather than a guarantee.
What drives the cost of a general contractor project?
Project cost is shaped above all by scope and structure. On the large prewar homes that line streets like Huntington Drive and Oak Knoll, moving walls, adding square footage, or changing a roofline pulls in engineering, framing, and additional inspections. Updating aging electrical service, replacing old plumbing, or meeting current Title 24 energy requirements adds further work. Soil conditions, site access, and fire-zone rules also factor in, as do finish selections. The most avoidable cost driver is changes made after construction begins, which is why we lock selections down before work starts.
How much can a contractor ask for up front?
California law caps the down payment a contractor can collect on a home improvement contract under Business and Professions Code 7159.5, and after that initial payment, any further draws are supposed to reflect work that has actually been completed. A contract demanding a large portion of the total before a single task is finished is a warning sign worth taking seriously. Our agreements follow the statute, tie each payment to a defined stage of work, and include the consumer notices the law requires. That structure matters in San Marino, where projects on older prewar homes along blocks like Oak Knoll or Monterey Road often involve layered scopes reviewed closely by the City of San Marino Building and Safety Division, and clear payment milestones keep the project accountable at every stage.
Do you use subcontractors?
Yes, like nearly every general contractor, we bring in licensed specialty subcontractors for certain trades, and they work on our schedule and under our direct supervision. We take responsibility for their work, pay subs and suppliers on time, and provide lien releases as payments go out, so a preliminary notice from a supplier stays routine paperwork rather than a problem for you. On a large prewar property along Oak Knoll or Monterey Road, you deal with one project manager, not a separate list of trades.
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Horizon is a licensed Class B general building contractor serving San Marino and the surrounding Los Angeles County communities.