General Contractor in San Dimas
Any San Dimas project that crosses trade lines and requires a building permit needs a licensed general contractor to manage it properly. Most of the residential fabric here grew up after the city incorporated in 1960, shaped by the same suburban foothill tracts that spread across the San Gabriel foothills during the post-war decades, and remodeling those single-family homes almost always means framing, mechanical, electrical and finish work running together in a single job. Horizon Construction and Remodeling is a California Class B general building contractor serving San Dimas, and we handle remodels, additions and new construction while carrying permits through the City of San Dimas Building and Safety Division, coordinating every trade, and walking the project through each required inspection to final sign-off.
Services We Offer
Room Additions & ADUs
Whole Home Remodels
New Construction
About Working with a General Contractor in San Dimas
Working with a general contractor in San Dimas begins with a site visit to your home and a written scope of work. From that scope we prepare drawings, bring in a structural engineer or energy consultant when the project calls for one, and put everything into a home improvement contract that clearly states the work, the payment schedule, and the start and completion dates. Because parts of San Dimas fall under specific plan areas with Early California and Western architectural guidelines, exterior projects may also move through the design review process before plans go to the City of San Dimas Building and Safety Division for permitting.
We submit plans, respond to plan-check comments, and pull the permit under our license. Once construction starts, one project manager sequences demolition, framing, and all trade work, orders materials ahead of schedule, and calls for each required inspection. Selections are locked in before the crew arrives so no finish decision stalls progress. Any change you request gets a written change order showing the cost and schedule impact before work proceeds. At the end we close out the permit, collect lien releases, and walk the finished project with you.
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Permits for a remodel or addition in San Dimas run through the City of San Dimas Building and Safety Division, and that process carries a local wrinkle worth knowing about before drawings go to plan check. Portions of the city fall inside specific plan areas carrying Early California and Western architectural guidelines, and exterior work in those zones goes through the design review process set out in Chapter 18.12 of the zoning code. We account for those requirements before a contract is signed rather than discovering them after a plan check comment sends the set back.
A Class B general building contractor license covers projects that involve at least two unrelated building trades, or any framing or carpentry, on a structure where people live or work. A specialty licensee such as a C-10 electrician or a C-36 plumber can do skilled work in one trade, but state law does not permit a specialty licensee to act as prime contractor on a multi-trade remodel. Before signing with anyone in San Dimas, look up the license number on the Contractors State License Board website. The record should be active, in the right classification, and in the company’s legal name, and it shows whether a bond and workers’ compensation coverage are on file.
Home improvement contracts in California are governed by Business and Professions Code 7159, which requires a written agreement that includes a description of the work, a payment schedule tied to work performed, approximate start and completion dates, and specific consumer notices including your right to cancel in certain situations. Business and Professions Code 7159.5 places a state-law cap on the down payment a contractor may collect, and progress payments cannot run ahead of the work completed. A contractor who asks for more up front is a warning sign.
Two additional rules surface on most projects. Subcontractors and suppliers who are not paid can record a mechanics lien against your property even if you paid the general contractor, which is why preliminary notices arrive during a project. Paying on the contract schedule and collecting lien releases as each payment goes out is the standard protection. On the lead paint side, most San Dimas residential tracts went up after the city incorporated in 1960, but homes completed before 1978 fall under the EPA Renovation, Repair and Painting rule, which requires that any firm disturbing painted surfaces be certified. Horizon is an EPA Lead-Safe Certified Firm.
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 Dimas
Why San Dimas Homeowners Work With Horizon
Horizon Construction & Remodeling Inc. has been operating as a licensed general contractor since 2009, which means we have been coordinating multi-trade projects in Southern California for over 15 years. We hold a Class B General Building license, and we are bonded. The license listed on your contract is the same one used to pull permits with the City of San Dimas Building and Safety Division, so there is no gap between who planned the work and who is accountable for it.
We work as a design-build contractor. Drawings, engineering coordination, permitting, and construction all sit under one agreement with one project manager. That structure matters most on the work a general contractor is built for: whole-home remodels, room additions, ADUs, structural changes, and ground-up new construction, where a sequencing mistake between trades costs real time and money.
San Dimas carries specific plan areas with Early California and Western architectural guidelines, and exterior work goes through the design review process under the local zoning code. We account for those requirements from the first set of drawings forward, so approvals do not become an afterthought late in the schedule.
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General Contractor FAQ
Do I need a general contractor for my project in San Dimas?
For any project in San Dimas that pulls a building permit, involves two or more unrelated trades, or touches framing, California generally requires a licensed contractor holding the right 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 then the scheduling, inspections, and any employer obligations for workers you hire fall on you. On an addition, a whole-home remodel, or a new build in one of San Dimas’s suburban foothill tracts, most homeowners find that carrying all of that becomes a 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 Dimas Building and Safety Division and takes responsibility for every inspection from foundation and framing through rough mechanical work to final sign-off. San Dimas has a strong base of owner-occupied suburban tract homes, and keeping the permit record clean matters when you refinance or sell. If an inspector flags anything, we correct it and schedule the re-inspection ourselves, then close out the permit so the work is properly on record with the city.
How long does a general contractor project take?
How long a project takes depends on its scope and on how the local permitting process runs. For work going through the City of San Dimas Building and Safety Division, design and engineering on a larger remodel or addition can take several weeks to a few months, and plan check may add several more weeks depending on workload and any correction rounds. Construction on a single-room remodel typically runs several weeks, while a whole-home remodel, addition, or new build usually takes many months. We give you a realistic schedule once the scope is defined, not a guarantee.
What drives the cost of a general contractor project?
Cost in a general contracting project is shaped first by scope and structure. Homes across San Dimas suburban footprint tracts were largely built after 1960, and many are now at the stage where owners want to move walls, add square footage, or alter a roofline, all of which bring in engineering, framing, and additional inspections. Upgrading electrical service, replacing aging plumbing, or meeting current Title 24 energy requirements adds further work. Site conditions, soil, slope, access, and fire-zone factors carry weight too, and so do finish selections. Changes made after construction starts are the most avoidable cost driver, which is why we work to settle every selection before the build begins.
How much can a contractor ask for up front?
California law caps the down payment on a home improvement contract under Business and Professions Code 7159.5, and every payment after that is supposed to reflect work that has actually been completed. Any contract asking for a large share of the total before a crew shows up is a warning sign worth taking seriously. Our agreements follow the statute, tie each payment to a defined stage of the project, and carry the consumer notices the law requires, so San Dimas homeowners know exactly where their money goes before work begins.
Do you use subcontractors?
Yes, like nearly every general contractor, we bring in licensed specialty subcontractors for certain trades, and those subs work on our schedule and under our direct supervision. We take responsibility for their work, pay them and our suppliers on time, and hand you lien releases as each payment goes out, so a preliminary notice is routine paperwork rather than a concern. On a San Dimas project, whether the home sits in the Via Verde area or along a West San Dimas foothill tract, you work with one project manager throughout, not a rotating list of separate trades.
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Horizon is a licensed Class B general building contractor serving San Dimas and the surrounding Los Angeles County communities.