A new rear addition with a vaulted beamed ceiling and tall windows
General Contractor · San Ramon, CA

General Contractor in San Ramon - Written Fixed-Price Quotes, Permits Handled

Free on-site estimate and a written, line-item quote before any work begins. One contract, one crew, one accountable point of contact. Licensed, insured, permits handled.

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A finished backyard cottage with a small covered porch
A single-story rear room addition with tall windows and a new patio
A powder room with botanical wallpaper and a stone sink
A remodeled laundry and mudroom with a bench, cubbies and painted cabinets
A built-in window seat in a bay window
A dining nook with a built-in banquette
A home office with a built-in desk and shelves
A remodeled kitchen with a waterfall island and wood cabinets
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Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled

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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.

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Why Mason Remodeling Is San Ramon’s Preferred General Contractor Company

A second-story addition that matches the existing roofline

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.

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Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

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.

Kitchen and Bath Coordination

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.

Whole Home and Addition Work
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What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Construction Company in San Ramon

A wide opening with a new beam where the kitchen wall was removed

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.

Before & after

See the difference

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Common 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

Why San Ramon Chooses Mason Remodeling

We set the standard for general contractor in San Ramon.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in San Ramon

Getting your general contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your general contractor needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in San Ramon - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local general contractor pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What San Ramon Customers Say

Trusted by homeowners across San Ramon and surrounding areas.

★★★★★

"Written scope, fixed price, and weekly updates. No change orders we hadn't agreed to."

Carlos H. · Verified customer
★★★★★

"Bathroom gut job. Replaced the old tub with a walk-in shower and added a niche. Waterproofing was done properly with a flood test before tile."

Greg L. · Verified customer
★★★★★

"Very respectful in the house. Shoe covers every day and a cleanup every evening."

Alma V. · Verified customer

Ideas for every room in the house

Built-ins, window seats, family rooms and staircases: the changes that make a whole house work better.

Read our remodeling guides
A finished basement family room with a media wall and wet barA walk-in pantry with wood shelvingA wood double vanity with two mirrors after a bathroom remodelAn open living space after a whole-home remodelA remodeled kitchen with painted cabinets and a farmhouse sinkA remodeled primary bathroom with a soaking tub and walk-in shower

More remodeling services in San Ramon

Every project below starts the same way: a free on-site visit and a written price.

Getting started with Mason

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a kitchen with the homeowner during a free estimate

Free on-site estimate

A project lead walks the job with you, measures it and hands you a written, line-item price. No obligation.

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What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise

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