Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Construction in Martinez, CA
Kitchen remodeling in Martinez typically runs $14,000-$45,000 for a full project, with smaller kitchens falling between $9,000 and $20,000. What makes pricing here different from Concord or Lafayette is the housing stock: downtown Martinez hillsides are dense with late-Victorian and early-Craftsman homes built between the 1880s and 1920s, many on pier-and-post foundations with balloon framing that predates seismic codes. Before we touch a cabinet, we check what’s behind the wall. Call (470) 298-9650 for a written estimate on any of the five trades below.
Why Martinez Homes Are Different
The defining construction reality in Martinez is age plus geography. Homes above downtown sit on grade changes that stress foundations differently than the flatlands below Alhambra Avenue, and many of the oldest structures use balloon-framed Victorian wood framing, which means wall cavities run continuously from sill to roof with no fire blocking. That matters for kitchen and bath work: opening a 1910 wall for plumbing or electrical tells you within five minutes whether the last renovation was done right or just covered up.
Climate adds a second layer. The Carquinez Strait funnels a daily Delta breeze with afternoon gusts regularly hitting 20-35 mph, and summer temperatures push into the mid-to-upper 90s more often than coastal Bay Area cities. That combination accelerates UV and moisture damage on exterior siding and trim, and it stresses roofing materials through repeated thermal expansion. For window and door work, wind load is a real spec, not a footnote.
There’s also the refinery factor. Properties within a half-mile of the Shell Martinez boundary often trigger Phase I environmental site assessments before Contra Costa County approves grading or foundation work. Out-of-area contractors unfamiliar with that requirement lose weeks on permitting. We plan for it from day one.
Our Main Martinez Services
Two jobs Martinez homeowners call about most often are fence installation and driveway replacement, both shaped by hillside lots and the city’s older housing stock. Here’s what each involves.
Fence Installation in Martinez
Many Martinez backyards step down a hill, which changes how posts are set and what wind load the fence must carry. Wood fences on exposed ridgelines take a beating from the daily Carquinez breeze, and older properties sometimes have retaining walls at the property line that determine what can be anchored where. We quote vinyl and aluminum fence installation with written line items, starting at $3,500 for vinyl and $4,000 for aluminum, and the number is fixed before anyone digs a hole. Full details live on our Fence Installation in Martinez page.

Driveway & Pavers in Martinez
Driveways on Martinez hillsides usually need a slope correction or drainage plan before new material goes down, and the historic districts have their own expectations for what looks right. Paver driveway installation here runs $7,000-$18,000; concrete replacement is $4,500-$12,000; asphalt paving runs $3,500-$9,000. We write the full scope and price before the first load of stone arrives. See the Driveway & Pavers in Martinez page for paver versus concrete trade-offs on hillside lots.

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


A full kitchen remodel in Martinez runs $14,000-$45,000, and the spread comes down to what’s inside the walls of your house. In the Victorian and Craftsman homes above downtown, kitchens were often added as lean-tos or converted porches, so we regularly find uneven floor framing, undersized joists, and electrical that was never meant to carry a modern appliance load. Grant Rowan’s crews open walls expecting that, and the written quote accounts for it before work starts rather than sending a change order after day three. Our Kitchen Remodeling team works from a documented scope with cabinet brands including KraftMaid and Wellborn, so the number is honest and the plan is explicit.
Full Kitchen Remodeling
Signs you need it
You’re working around a layout that no longer functions, the cabinets are failing at the hinges, or the floor slopes visibly toward the back wall because the addition below it was never properly supported.
What it costs in Martinez
Full kitchen remodeling in Martinez runs $14,000-$45,000 depending on cabinet grade, appliance moves, and what the framing inspection reveals.
How we do it
We document existing conditions with photos, pull permits, strip to framing where structural work is required, and rebuild with a written scope and signed change orders only when something hidden changes the plan.
Cabinets & Countertops
Signs you need it
Cabinet boxes are swollen or delaminating from years of sink and steam exposure, or the countertop material is cracked, stained, or dated beyond what a refinish can fix.
What it costs in Martinez
Cabinet installation runs $4,000-$13,000 and countertop installation runs $2,000-$6,500, depending on material and linear footage.
How we do it
We measure to the sixteenth, order from brands like KraftMaid and Wellborn with Cambria or Caesarstone tops, and install with documented photo records at each step.
What Kitchen Remodeling Costs in Martinez
| Item | Typical range in Martinez |
|---|---|
| Full kitchen remodel | $14,000 - $45,000 |
| Small kitchen remodel | $9,000 - $20,000 |
| Countertop installation | $2,000 - $6,500 |
How long does a kitchen remodel take in Martinez?
Most full kitchen remodels in Martinez take six to ten weeks, with older homes sometimes running longer if structural repairs surface during demolition. The written scope sets the schedule, and change orders only extend it when you approve them. Call (470) 298-9650 for a timeline specific to your house.
Will the price change once work starts on my Martinez kitchen?
Only if hidden conditions require it, and only after you sign a change order approving the new number. That discipline, under Clause 1 of the Haven Standard, is why Rowan projects finish within a few percent of the agreed price. Call (470) 298-9650 to see how we write the quote.
Bathroom Remodeling in Martinez


Bathroom remodeling in Martinez runs $9,000-$28,000 for a full project, with smaller bathrooms at $5,000-$12,000. The older homes near downtown often have bathrooms shoehorned into former closets or back porches, which means tight dimensions, strange plumbing runs, and floor framing that has spent eighty years absorbing moisture. Our Bathroom Remodeling crews quote the job with those realities on paper, not as surprises. Here’s what that looks like in practice.
Full Bathroom Remodeling
Signs you need it
The tile membrane has failed, the subfloor around the toilet or tub is soft, or the layout is so tight the door hits the vanity when it opens.
What it costs in Martinez
Full bathroom remodeling in Martinez runs $9,000-$28,000, with the high end reflecting moved plumbing and structural floor repairs in older homes.
How we do it
We strip to framing where needed, inspect the joists and subfloor, replace what failed, then rebuild with a waterproof membrane, documented in photos at every layer.
Tub-to-Shower Conversion
Signs you need it
The tub is too shallow or unsafe to step into, and you want a walk-in shower without moving the bathroom’s existing footprint.
What it costs in Martinez
Tub-to-shower conversion in Martinez runs $3,500-$10,000 depending on tile choice and whether the drain needs to be repositioned.
How we do it
We remove the tub, inspect and repair the subfloor, relocate the drain if needed, install a waterproof shower pan and wall membrane, and finish with tile and fixtures from lines like Kohler or Toto.
What Bathroom Remodeling Costs in Martinez
| Item | Typical range in Martinez |
|---|---|
| Full bathroom remodel | $9,000 - $28,000 |
| Small bathroom remodel | $5,000 - $12,000 |
| Walk-in shower installation | $4,500 - $12,000 |
Can you fix a water-damaged subfloor during a Martinez bathroom remodel?
Yes, and it’s common in older Martinez homes where decades of small leaks have softened the framing under the floor. The written scope includes the repair if we find it, with a signed change order only for conditions outside that scope. Call (470) 298-9650 for an inspection.
Does a Martinez bathroom remodel require a permit?
Most bathroom remodels in Martinez require a permit when plumbing or electrical moves, and we pull the permit as part of the job. The written quote includes permit fees so there’s no added line item later. Call (470) 298-9650 to confirm your scope.
Roofing in Martinez


Roof replacement in Martinez runs $8,000-$20,000, and the deciding factor is usually what’s already up there. Many of the older Victorian and Craftsman homes near downtown still carry their original shingle layers, and the daily Carquinez wind plus summer heat has done visible work on the edges and ridges. Our Roofing crews document the shingle layer count and substrate condition before writing the number, because a roof over balloon framing needs different handling than one over a flatland ranch. Here’s what the work involves.
Roof Replacement & Installation
Signs you need it
Shingles are lifting or missing along the rake edges, you see daylight in the attic, or the roof is at the end of its expected life and the underlayment is brittle.
What it costs in Martinez
Roof replacement in Martinez runs $8,000-$20,000 depending on square footage, pitch, and the number of layers that must come off first.
How we do it
We strip to decking, inspect the framing, replace damaged sheathing, install new underlayment and flashing, then finish with GAF or Owens Corning shingles per the written scope.
Roof Repair
Signs you need it
You’re seeing water stains on the ceiling after wind-driven rain, or shingles have lifted along the ridge from repeated Delta breeze gusts.
What it costs in Martinez
Roof repair in Martinez runs $400-$1,800 depending on the extent of the damage and how many layers are involved.
How we do it
We locate the leak source, document the condition with photos, replace failed flashing or shingles, and test the repair with water before we call it done.
What Roofing Costs in Martinez
| Item | Typical range in Martinez |
|---|---|
| Roof replacement | $8,000 - $20,000 |
| Roof repair | $400 - $1,800 |
| Metal roof installation | $15,000 - $40,000 |
How many shingle layers are legal on a Martinez roof?
California building code allows up to two layers of asphalt shingles, but many Martinez homes already sit at that limit, so a second reroof means a full tear-off. We check the layer count during the estimate. Call (470) 298-9650 for a roof assessment.
Does the wind in Martinez really damage roofs?
Yes. The Carquinez Strait funnels afternoon gusts of 20-35 mph that lift shingle edges and drive rain sideways under flashing. Proper edge detailing and correct nail patterns matter more here than inland. Call (470) 298-9650 to have your roof checked.
Windows & Doors in Martinez


Window replacement in Martinez runs $4,500-$15,000 for a typical home, and the older housing stock near downtown changes what that number buys. Many of the original double-hung windows in Victorian and Craftsman homes are single-glazed with rotted sashes and counterweights that no longer hold, and the daily wind off the Carquinez Strait finds every gap. Our Windows & Doors team measures existing openings, checks the framing for rot, and writes the replacement number with the actual units specified. Here’s the detail.
Window Replacement
Signs you need it
Sashes are painted shut or the glazing putty is failing, you feel drafts on windy afternoons, or the frames show rot at the sill and jamb.
What it costs in Martinez
Window replacement in Martinez runs $4,500-$15,000 depending on unit count, material, and whether the original openings can be reused.
How we do it
We measure each opening, order units sized to it, remove the old sashes and stops, repair or replace rotted framing, and install with full perimeter insulation and flashing.
Impact Windows & Doors
Signs you need it
You want windows that hold up to wind-driven debris and reduce sound from the Carquinez wind, or you’re replacing everything anyway and want the upgrade done once.
What it costs in Martinez
Impact window installation in Martinez runs $8,000-$25,000 depending on size, frame material, and the number of openings.
How we do it
We spec impact-rated units, order with the correct wind-load designation for your exposure, and install with the same documented process as standard replacement, including photo records.
What Windows & Doors Costs in Martinez
| Item | Typical range in Martinez |
|---|---|
| Window replacement | $4,500 - $15,000 |
| Impact window installation | $8,000 - $25,000 |
| Window installation (new openings) | $4,500 - $15,000 |
Do old Martinez windows need full replacement or can they be repaired?
Many original windows can be repaired with new sash cords, glazing, and weatherstripping, but rotted sills and failed glazing usually mean replacement is the better value. We’ll document what yours need and price both. Call (470) 298-9650 for an evaluation.
What window material holds up best in Martinez’s climate?
Fiberglass frames handle the thermal expansion from Martinez summers and the moisture from the Carquinez Strait better than wood or vinyl in many exposures, but each opening is different. The written quote names the material and why. Call (470) 298-9650 to talk specific windows.
Home Additions & ADU in Martinez

A home addition in Martinez runs $45,000-$130,000, and an ADU runs $90,000-$220,000, with the spread driven by foundation conditions and the city’s permitting path. Homes on the downtown hillsides often sit on pier-and-post foundations that need evaluation before any structural tie-in, and properties near the Shell refinery boundary may trigger a Phase I environmental site assessment before grading is approved. Our Home Additions & ADU team handles that due diligence as part of the written scope. Here’s how the work breaks down.
ADU Design & Permitting
Signs you need it
You have a lot with enough side or rear setback for a detached unit, or an existing garage or basement that could be converted, and you want the permit path handled without surprises.
What it costs in Martinez
ADU construction in Martinez runs $90,000-$220,000 depending on size, foundation type, utilities, and finish level.
How we do it
We survey the lot, check zoning and setback rules, file the plans, pull permits, and manage the build with signed change orders and a photo record at every inspection point.
Garage Conversion ADU
Signs you need it
You have a detached or attached garage that’s underused, and you want living space without the cost or footprint of a new foundation.
What it costs in Martinez
Garage conversion in Martinez runs $30,000-$80,000 depending on whether the existing slab can support living space and how much electrical and plumbing must be added.
How we do it
We evaluate the slab and walls, document the condition, design the conversion to code, and build it with a written scope covering utilities, insulation, and finish work.
What Home Additions & ADU Costs in Martinez
| Item | Typical range in Martinez |
|---|---|
| Home addition | $45,000 - $130,000 |
| ADU construction | $90,000 - $220,000 |
| Garage conversion | $30,000 - $80,000 |
Does a Martinez ADU trigger an environmental assessment?
Only if the property sits within about a half-mile of the Shell Martinez refinery boundary, where Contra Costa County may flag grading or foundation permits for a Phase I assessment. We check the address against that zone at the estimate stage. Call (470) 298-9650 for a site evaluation.
Can I build an ADU on a hillside lot in Martinez?
Yes, but the foundation design must account for the slope and existing pier-and-post conditions on many older downtown hillside lots. The written quote includes geotechnical evaluation when the site requires it. Call (470) 298-9650 to discuss your lot.
Brands We Service in Martinez

We install and service cabinets from KraftMaid and Wellborn, countertops from Cambria and Caesarstone, roofing from GAF and Owens Corning, and fixtures from Kohler and Toto. Most replacement parts are stocked in our Bay Area dispatch, so turnaround times in Martinez stay short. See our brands for the full list of fifty-plus vetted manufacturers.
Pricing for Construction in Martinez, CA
| Service | Typical range in Martinez |
|---|---|
| Full kitchen remodel | $14,000 - $45,000 |
| Full bathroom remodel | $9,000 - $28,000 |
| Roof replacement | $8,000 - $20,000 |
| Window replacement | $4,500 - $15,000 |
| Home addition | $45,000 - $130,000 |
| ADU construction | $90,000 - $220,000 |
| Paver driveway installation | $7,000 - $18,000 |
| Concrete driveway installation | $4,500 - $12,000 |
| Vinyl fence installation | $3,500 - $9,000 |
| Aluminum fence installation | $4,000 - $10,000 |
Two things push prices up in Martinez: hillside foundations that need structural attention before new work ties in, and the refinery-adjacent permitting zone that can add environmental due diligence. Neither one appears as a surprise because the written price is built before anyone starts, under Clause 1 of the Haven Standard.
Neighborhoods We Serve in Martinez

We work across Martinez, from the Victorian-heavy hills above downtown to the mid-century ranch homes in the flatlands and everything in between. Here are the neighborhoods we serve most often:
- Downtown Martinez
- Mountain View
- Alhambra Valley
- Virginia Hills
- Hidden Lakes
Response time across the Martinez service area is typically one to three business days for an estimate visit, depending on scheduling.
Service Area - Cities Near Martinez
Rowan Construction Group serves Martinez and the surrounding Contra Costa County communities. If you’re in Pleasant Hill, CA, Benicia, CA, Lafayette, CA, or Concord, CA, the same written-price-before-any-work promise applies. Estimates are free, and the number doesn’t change because you’re a few minutes outside Martinez.
Serving Martinez, CA - Our Local Coverage Area

We’re based in the Martinez 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 Construction in Martinez
Yes. We pull all required permits as part of the written scope, and the permit fees are included in the quote. For Martinez specifically, properties near the Shell refinery boundary may require a Phase I environmental site assessment before grading or foundation permits are approved, and we handle that documentation. Call (470) 298-9650 with your address and we’ll check the requirements.
We schedule by trade and crew availability, and the written quote includes an expected timeline. Older homes near downtown Martinez sometimes have hidden structural conditions that extend a project, but those extensions only happen after you sign a change order. Call (470) 298-9650 to get a schedule estimate for your job.
We serve all of Martinez plus the nearby cities of Pleasant Hill, Benicia, Lafayette, and Concord. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and crews serve Martinez locally, so travel time is built into the schedule, not the price. Call (470) 298-9650 to confirm your address is in the service area.
What happens when you call
- 1A real person answersNo phone trees - talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Martinez Customers Say
"Fence and retaining wall along a sloped boundary. They photographed the footing depth at each post, which mattered when the county inspector came."
- Iona F."Talked us out of the larger scope we came in asking for, because it would not have added the value we thought."
- Emil R."They found an old septic line under the driveway run and stopped, documented it, and re-quoted before continuing."
- Xavier L.







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