







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across San Ramon
A general contractor in San Ramon handles the scope, permits, scheduling, and coordination for projects that touch structure, plumbing, electrical, or the building envelope. Most whole-home remodels here run $45,000 to $130,000 depending on square footage and the condition of what’s behind the walls, and a kitchen remodel typically lands between $14,000 and $45,000. You’ll want someone who knows that many San Ramon neighborhoods, from Windemere to Gale Ranch, sit under HOA architectural review and that hillside lots trigger soils and drainage scrutiny before the first inspection sign-off. Call (803) 680-2547 and we’ll walk the project with you, line by line, before any tool comes off the truck.
Why Mason Remodeling Is San Ramon’s Preferred General Contractor Company

We’ve worked on mid-1990s two-stories in Windemere, newer builds near Dougherty Valley, and the older ranch-style properties tucked along Bollinger Canyon Road. Each has its own permit path, and ours starts with a written price delivered before any work begins, never a verbal estimate that grows on the final bill. Isaac Pruett leads our crews, and every technician who arrives at your door has been background-checked, identity-verified, and introduced to you by name and photo before the visit. That’s the Threshold Standard, and it matters more when the person entering your home will be there for weeks, not hours.
San Ramon homeowners often tell us the same thing: they’ve heard stories about change orders that doubled the price and about crews who skipped the HOA review and then had to redo exterior work after the fact. Our 365-Day Done Right Promise means if the work is not right within a year of completion, we make it right at no cost to you. We put allowances for cabinets and countertops in writing up front, because the moment you pick Cambria or KraftMaid upgrades during finish, you should already know what that line item will be.
Styles & brands we work with







General Contractor Services in San Ramon
General Contractor Services in San Ramon cover the structural and permit-driven work that separates a true remodel from a cosmetic refresh: framing changes, load-bearing wall removal, foundation or drainage work, and the mechanical rough-in that has to pass inspection before drywall goes back up. A San Ramon homeowner needs this level of coordination when walls move, when square footage gets added, or when the project touches anything a city inspector will need to sign off on. Kitchen remodels here run $14,000 to $45,000, while a small kitchen remodel is usually $9,000 to $20,000. Whole home remodels can touch $45,000 to $130,000 when you’re moving plumbing and electrical throughout the house, and ADU construction ranges from $90,000 to $220,000 depending on whether the unit is attached or detached and how steep the lot is.
Kitchen and Bath Coordination
These are the projects where rough-in order matters most. A mid-1990s Windemere kitchen opened to the family room means confirming the load-bearing wall first, mapping the existing rough-in, and then sequencing cabinets, countertops, plumbing, and electrical so each inspection passes in one visit. Bathroom remodels in San Ramon generally fall between $9,000 and $28,000 for a full gut, with a small bathroom remodel at $5,000 to $12,000.

Whole Home and Addition Work
When the scope includes a room addition or a garage conversion, the general contractor is the one coordinating the structural engineer, the geotechnical report on a hillside lot, and the HOA architectural submittal alongside the city permit. Garage conversions run $30,000 to $80,000 in San Ramon, and the final price depends heavily on whether the slab and drainage are already adequate or need to be brought up to code.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Construction Company in San Ramon

A Construction Company in San Ramon is what you need when the project includes work that cannot be inspected without a licensed GC on the permit: structural changes, additions, ADUs, and anything involving gas, electrical panels, or steep-slope drainage. In San Ramon specifically, hillside properties along the Dougherty Valley and parts of Norris Canyon can require a soils report and a drainage review before the city will even issue the permit. We’ve seen customers lose weeks to this step because they treated it as a formality. A home addition here typically runs $45,000 to $130,000, and an ADU is $90,000 to $220,000. Garage conversions land between $30,000 and $80,000.
Hillside and Drainage Scope
We took on a mid-1990s two-story in the Windemere development where the customer wanted a kitchen opened to the family room, and the first thing we confirmed was the load-bearing wall and the exact path of the existing rough-in before anything came out. After updating the cabinets and Cambria countertops, our tech found the original subfloor had dipped around the sink from an old slow leak, so we added a change order for repair in writing before we set the new cabinetry. The project ended with a passed inspection sign-off, an HOA-approved exterior vent, and a punch list we cleared in one visit.
Permit and Inspection Coordination
We handle the city permit, the HOA submittal, and the scheduling of each inspection with the trade who did the work on site. That means one point of contact when the inspector flags something, one person who knows what the soils engineer said about your lot on Bollinger Canyon or Iron Horse Trail, and one written price that reflects the actual scope, not a guess.
Trusted Brands We Service in San Ramon
We stock and install specification-grade materials from partners including Cambria, KraftMaid, Kohler, and Moen, so San Ramon homeowners get access to vetted, professional-grade product lines without chasing supply-house stock themselves. We also work with construction systems like Abodu and Cover when the project calls for a panelized or prefab approach, and we can walk you through whether Dvele’s higher-performance envelope makes sense on a steep hillside lot where draining and airflow matter. Having local stock and established supplier relationships shortens lead times, and that’s a real advantage when your kitchen is torn out and your family is eating in the garage.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in San Ramon Homes
- HOA architectural review gets skipped. We’ve seen projects on Canyon Lakes Drive stall for weeks because the homeowner started with a contractor who treated HOA approval as an afterthought. By the time the board flagged the exterior vent or the new fence line, the draw schedule was already off track and the plans had to be redrawn.
- Hillside drainage is treated as a routine box-check. On sloped lots near the Dougherty Valley, a missing drainage allowance in the original bid becomes a five-figure change order during excavation. Retaining and drainage work is not an upgrade; on many San Ramon hillside lots it’s the first thing the geotechnical reviewer asks about.
- Cabinets and countertops are quoted without a written allowance. A homeowner picks Cambria slabs or KraftMaid maple at the showroom, and suddenly the final bill is thousands higher than the initial range. We write the allowance into the price up front so that selection is a known cost, not a surprise.
- Older subfloors hide old leaks. In 1990s-era San Ramon builds, we regularly find dipped subfloor around sinks from slow leaks that never got caught. Repairing that before setting new cabinetry is cheaper, faster, and keeps the inspection from flagging the floor later.
Pricing for General Contractor in San Ramon, CA
San Ramon construction pricing tracks the broader East Bay market, but HOA compliance and hillside drainage add real cost drivers that flat neighboring cities do not share. Here’s what a typical San Ramon homeowner should expect before we walk the site:
| Project Type | Typical San Ramon Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the number is clear: lot slope, structural condition, HOA submittal requirements, and the finish level you choose for cabinets, counters, and fixtures. We deliver a written price before any work starts, and that document includes the allowances for those finishes so you’re choosing from known numbers, not discovering them at the end. Call (803) 680-2547 to schedule your free estimate, and we’ll give you the same line-item detail in writing.
We Also Serve Cities Near San Ramon
Our crews serve San Ramon and the surrounding East Bay communities, including Dublin, Danville, Hayward, and Pleasanton. If your project sits in one of those cities, the permit path and HOA requirements may differ, but our General Contractor team brings the same written-price standard and the same crew verification to every job.
Serving San Ramon, CA - Our Local Coverage Area
We’re based in the San Ramon 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 Ramon
Yes, a kitchen remodel in San Ramon that moves plumbing, electrical, or walls requires a city permit, and if your home sits in an HOA-governed community like Windemere or Gale Ranch, you’ll also need architectural review approval for any exterior-facing changes like vent relocation or window resizing. On hillside lots, the city may also require a soils or drainage review before the permit is issued. We handle both submittals and sequence the work so the HOA’s approval does not block the city’s inspection schedule. Call (803) 680-2547 and we’ll check your specific property before you plan around a start date.
A full bathroom remodel in San Ramon typically takes 3 to 6 weeks from demo to final inspection, with a small bathroom remodel on the shorter end and a larger primary bath with custom tile and glass on the longer end. HOA review can add a week or two if your HOA requires documentation for vent changes, and hillside lots sometimes need a drainage sign-off that extends the window. We build the calendar with those San Ramon-specific steps included, so the date we give you is the date we plan to hit. Call (803) 680-2547 for a project-specific timeline.
The three things that change the price after work begins are: hidden structural issues like rotted subfloor or old leak damage, HOA or city requirements that force a redesign, and finish selections beyond the written allowance. On a San Ramon hillside lot, the most common one is drainage or retaining work that the geotechnical review requires but the original bid did not include. We put allowances and known conditions in writing before we start, and any change order is delivered to you in writing before we proceed. Call (803) 680-2547 and we’ll show you exactly where the cost drivers sit in your project.
We submit the plans, material specifications, and any required samples to your HOA’s architectural review committee and we do not start exterior work until we have written approval in hand. For a driveway in a hillside community, that may also include a drainage plan showing how runoff will be managed. We coordinate the HOA submittal alongside the city permit so neither one stalls the other. Call (803) 680-2547 and we’ll tell you what your specific HOA requires before we ever break ground.
A general contractor on a San Ramon home addition runs the permit application, the structural and geotechnical engineering, the HOA submittal, the framing, the mechanical rough-in, the drywall, the finish work, and every inspection in between. Hiring separate trades means you become the coordinator, and on a hillside lot that means chasing a soils engineer, a structural engineer, three inspectors, and an HOA board on your own. We give you one point of contact and one written price that covers the entire scope. Call (803) 680-2547 to talk through your addition.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Ramon.










