Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across San Dimas
A general contractor in San Dimas needs to understand hillside lots, wind exposure, and homes built between the 1950s and 1980s. We do. Mason Remodeling Co West Covina handles everything from kitchen remodels to full home additions across San Dimas, with written pricing before any work starts and a 365-Day Done Right Promise on every project. Call (707) 760-7579 for a free estimate and we’ll tell you exactly what your project costs, line by line, before you sign anything.
San Dimas sits in the foothills of the San Gabriel Mountains. That means steep driveways, retaining walls, and drainage systems that flatland contractors rarely deal with. Our General Contractor team has handled all of it, and we’re familiar with the permit requirements specific to hillside construction zones in San Dimas, including Wind Exposure C designations north of Foothill Boulevard.
Why Mason Remodeling Co West Covina Is San Dimas’s Preferred General Contractor Company
Homeowners in San Dimas call us for one reason more than any other: they want to know exactly who is walking through their door and exactly what the job will cost. Mason Remodeling has provided general contracting, bathroom remodeling, and whole-home remodeling since 2004 as part of the Threshold Group family. The Threshold Standard means every crew member is background-checked, identity-verified, and introduced to you by name and photo before they arrive. They show up in a clean marked uniform with a photo ID badge at the door.
Isaac Pruett leads our team with a simple rule: a written price is delivered before any work begins. Not a verbal estimate. Not a ballpark. A written price. It’s never optional, never a promotion, and never waived. That’s why San Dimas homeowners who have been burned by vague allowances and surprise change orders choose us for hillside foundation work, cast-iron drain replacement, and storm-rated roof installations.
Every completed project in San Dimas carries a written guarantee with clearly stated terms, including a free return visit at no charge if a repair or installation fails. And a live person answers every call, 24 hours a day, 7 days a week. No call trees. No voicemail loops. You call (707) 760-7579 and a human picks up.
Styles & brands we work with
Residential General Contractor in San Dimas
Residential General Contractor work in San Dimas covers the full scope of home improvement: kitchen remodels, bathroom remodels, room additions, whole-home renovations, and structural repairs tied to hillside soil movement. A typical kitchen remodel in San Dimas runs $14,000 – $45,000 depending on cabinet grade, countertop material, and whether you’re moving plumbing or walls. A bathroom remodel typically runs $9,000 – $28,000. Home additions start around $45,000 and can reach $130,000 for larger second-story builds on sloping lots.
What makes San Dimas different is the soil. The hot, dry summers and occasional heavy winter rains cause significant expansion and contraction in the clay-heavy soils, especially in the foothill neighborhoods. Older homes commonly show foundation cracks and hillside erosion. Before we open up any wall or pour any footing, we check for drainage issues that could undermine the work.
Hillside Foundation and Drainage Work
Homes on sloping lots north of Foothill Boulevard often need retaining wall reinforcement, French drains, or foundation crack repair before cosmetic work even begins. We price this work separately and in writing, so you’re not hit with a surprise $12,000 change order when crews encounter fractured footings. You’ll know before demolition starts.
Seismic and Plumbing Retrofits
Most San Dimas homes were built between the 1950s and 1980s. Many still have cast-iron drain pipes that have corroded from decades of hard water. When we open a wall or floor during a remodel, we inspect those lines and recommend replacement before closing anything up. We pull the permits, schedule the inspection, and document everything.
Hire a General Contractor in San Dimas
Hire a General Contractor in San Dimas when the project involves structural changes, multiple trades, or permit-required work. You don’t want three separate crews with three separate schedules and no one accountable for the final result. A general contractor owns the schedule, the permits, the inspections, and the warranty. In San Dimas, that’s especially important because hillside wind exposure requirements add inspection steps that a handyman might skip.
A roof replacement in San Dimas runs $8,000 – $20,000. Impact window installation runs $8,000 – $25,000. These are not the cheapest numbers in the county, and there’s a reason: storm-compliant work costs more up front and protects you later. A cheap quote that skips uplift straps on roof-to-wall connections leaves you exposed during a Santa Ana wind event and gives your insurance adjuster a reason to deny the claim.
What a Compliant Quote Includes
Our written quotes include the specific materials rated for Wind Exposure C, the nailing pattern documentation for roof-to-wall connections, the permit fees, and the inspection schedule. We tell you which products we’re installing and why. No vague allowances. No “to be determined” line items.
Permits and Inspections
We pull permits for every job that requires them in San Dimas. That includes structural work, electrical, plumbing, and any roof replacement in a designated wind zone. We schedule the inspections, walk with the inspector, and hand you the signed documentation at the end. That paperwork matters when you file an insurance claim or sell the home.
Trusted Brands We Service in San Dimas
San Dimas homeowners get access to specification-grade material partnerships through Mason Remodeling: cabinetry from KraftMaid and Wellborn, surfaces from Cambria and Silestone, fixtures from Kohler and Moen, roofing from GAF and CertainTeed, and hardscaping from Belgard and Unilock. We specify these brands because they perform in San Dimas conditions. Cambria and Silestone surfaces hold up to hard water. GAF and CertainTeed roofing systems carry wind ratings that meet San Dimas hillside code requirements. We also work with Mighty Buildings and Boxabl on select ADU projects where a faster, panelized build makes sense on tight hillside lots. When you call for a free estimate at (707) 760-7579, we’ll walk you through which brands fit your budget and your site conditions.
See the difference
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AfterCommon General Contractor Problems We See in San Dimas Homes
- Corroded cast-iron drain pipes. In the hillside neighborhoods north of Foothill Boulevard, decades of hard water have eaten through cast-iron lines. We find pinhole leaks and full collapses that require complete replacement with PVC before walls are closed.
- Missing or undocumented roof-to-wall connections. Homes built before current wind codes often lack the uplift straps now required in Wind Exposure C zones. A standard reroof without those straps and their signed inspection leaves the family vulnerable during Santa Ana events.
- Foundation cracks from expansive soils. The clay-heavy soils in San Dimas foothills expand when wet and shrink when dry. This cycle cracks footings and shifts load-bearing walls. We address this before any framing begins.
- Unpermitted previous work hidden behind walls. We frequently open up walls in older San Dimas homes and find electrical or plumbing work that was never permitted. Fixing it correctly means bringing it to current code before moving forward with your remodel, and we document every step.
Pricing for General Contractor in San Dimas, CA
Here are the numbers San Dimas homeowners ask about most, in plain dollars. These ranges reflect the local market for storm-compliant, permitted work with written pricing:
| Project | Typical Cost in San Dimas |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Replacement | $8,000 – $20,000 |
What moves the number? For bathrooms, fixture grade, tile selection, and whether you’re replacing corroded drain lines. For impact windows, the number of openings and the rating level required for your hillside exposure zone. For roofs, the pitch, the number of layers being torn off, and the wind-load documentation required by the city. We give you a written, line-item price before any work starts. Call (707) 760-7579 to schedule your free estimate in San Dimas.
We Also Serve Cities Near San Dimas
Beyond San Dimas, our crews work regularly in La Verne, Glendora, Azusa, and Pomona. The wind-load requirements shift as you move out of the foothills, and we adjust our recommendations accordingly. If you’re in any of these neighboring cities, our General Contractor in San Dimas team can help you assess your property and get a written price.
Serving San Dimas, CA - Our Local Coverage Area
We’re based in the San Dimas area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About General Contractor in San Dimas
Yes, if your home sits in a designated Wind Exposure C zone, which covers most hillside areas north of Foothill Boulevard. The roof-to-wall connections must be inspected and signed off, and you need documentation of the nailing pattern and uplift straps. We include this inspection in every roof replacement quote. Call (707) 760-7579 to confirm whether your specific address falls in the wind zone.
A storm-compliant quote includes the uplift straps, the impact-rated materials, the permit fees, and the inspection schedule, all in writing. A cheap quote skips those items because they add cost. After the next Santa Ana wind event, the cheap quote is the one where your insurance adjuster asks for documentation you don’t have. Get a written quote from us and compare line by line at (707) 760-7579.
Yes, drain line replacement requires a plumbing permit and a rough-in inspection before walls are closed. Skipping this is exactly how homeowners end up with a slab leak behind new drywall and an insurance denial for undocumented structural work. We handle the permit and the inspection as standard practice, not as an add-on.
The clay-heavy soils expand and contract significantly with San Dimas’s wet winters and dry summers. This movement puts pressure on footings and can shift load-bearing walls. Before we remove or modify any load-bearing structure, we assess the foundation condition and soil drainage. If cracked footings are found, that gets addressed and priced in writing before framing work proceeds.
It can absolutely help your claim. When you have signed inspection documentation for wind-load connections, impact-rated windows, and permitted plumbing work, your insurance provider has proof the work met code at the time it was done. That can be the difference between a covered claim and a denial. Call us at (707) 760-7579 and we’ll make sure your project leaves you with the paperwork you need.
Written by Isaac Pruett, Owner at Mason Remodeling Co West Covina, serving San Dimas since 2004.
