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Construction in San Jose typically runs between $106,200 and $259,600 for a full-scale project like a home addition or ADU, with smaller jobs such as a kitchen remodel landing between $16,520 and $53,100. Those are real 2026 numbers from our market here in the South Bay, not national averages that fall apart when you actually call a local contractor. Your final price depends on square footage, materials, site access, and whether you’re building new or working inside an existing structure.
Bradford Remodeling Co San Jose puts every construction estimate in writing before a single tool comes out. You’ll know the exact number, the exact scope, and exactly what the 365-Day Done Right Promise covers – a full-year written guarantee that we come back and correct the work at no charge if it doesn’t hold up.
Construction Cost Breakdown (2026)
Here’s what construction work costs across San Jose right now, broken down by project type. These ranges reflect what we’re seeing on actual bids in neighborhoods from Willow Glen to Evergreen to Almaden Valley in 2026.
| Project Type | Typical Cost Range (San Jose, 2026) |
|---|---|
| Full Home Addition | $53,100 – $153,400 |
| ADU Construction | $106,200 – $259,600 |
| Garage Conversion | $35,400 – $94,400 |
| Kitchen Remodel | $16,520 – $53,100 |
| Small Kitchen Remodel | $10,620 – $23,600 |
| Bathroom Remodel | $10,620 – $33,040 |
| Small Bathroom Remodel | $5,900 – $14,160 |
| Roof Replacement | $9,440 – $23,600 |
| Window Replacement | $5,310 – $17,700 |
| Paver Patio Installation | $4,130 – $12,980 |
What drives a kitchen remodel from $16,520 up to $53,100? In San Jose, three things matter most: the condition of the substrate behind your walls, the cabinet line you choose, and whether you’re moving plumbing or electrical. A ranch house in Cambrian built in the 1960s often has framing that needs correction before new cabinetry goes in – that’s $2,000 to $6,000 in prep work before finish materials even get ordered. If you’re pulling permits for structural changes, plan on $3,000 to $8,000 in city fees depending on project scope, and San Jose’s permit review tends to run longer than neighboring cities, which affects scheduling.
At the top of the range, you’re specifying KraftMaid or Wellborn cabinetry, Cambria or Caesarstone surfaces, and Kohler fixtures. At the bottom, you’re keeping the existing footprint and swapping finishes. Both are legitimate projects. Neither should surprise you at the door.
What Affects Construction Pricing in San Jose
We price construction work in this city every week, and these are the factors that consistently move the number.
- Permit requirements and plan review timelines. San Jose’s building department requires permits for most structural work, additions, ADUs, and any job touching electrical, plumbing, or load-bearing walls. Plan review can run 4 to 12 weeks depending on workload, and expedited review adds cost. A homeowner who expects an ADU to go from signed contract to drywall in six weeks hasn’t priced San Jose reality.
- Home age and framing condition. Much of San Jose’s housing stock went up between 1950 and 1980. We regularly find termite damage, undersized joists, and non-compliant wire runs in homes from Alum Rock to Willow Glen. Correcting those before finish work starts is not optional – it’s code – and it’s the single biggest driver of “the estimate changed” horror stories from contractors who didn’t look behind the drywall.
- Site access and lot configuration. If your job site in the Rose Garden district has a narrow side yard, the crew is hand-carrying materials instead of rolling a dumpster to the back. That’s labor hours. Hillside lots in the East Foothills add shoring, drainage, and sometimes geotechnical review. Flat, open lots with direct street access price at the bottom of any range.
- Material selection. A 10-by-10 kitchen with stock cabinets and laminate counters is not the same job as the same footprint with Wellborn cabinetry and a Cambria island. Material costs in the Bay Area run 15 to 25 percent above national averages because of freight, warehouse costs, and local labor rates. We document every brand in writing – KraftMaid, Kohler, James Hardie – so you know exactly what you’re paying for.
- Scope of structural work. Removing a load-bearing wall or reframing a roof line adds engineering, steel, and a second permit cycle. If the wall you want gone is holding up the second story, budget $4,000 to $12,000 for the beam and the engineer’s stamp before you spend a dollar on finish work.
- Demo and disposal. San Jose’s construction and demolition waste rules require sorted loads and certified haulers. Dump fees and hauling run higher here than in most of the country, and they’re line items on every honest bid. If a contractor doesn’t list disposal, the number isn’t real.
What Does Bradford Remodeling Charge for Construction in San Jose?
We don’t publish a flat rate because construction doesn’t work that way. What we do publish is the process: a written price before any work starts, every time, no exceptions. That’s The Garrison Standard, the operating framework behind every Bradford project since the Garrison Partners family was established in 2004.
Here’s what that looks like on the ground. You call us, a real person answers – 24/7, not a voicemail, because that’s how the Standard works. We schedule a site visit. We measure, inspect, and write a scope. You get a line-item price that includes permits, materials, labor, and disposal. The number doesn’t move unless you change the scope, and any change gets its own written line item before the work proceeds.
Every Bradford technician who walks through your door is background-checked and uniformed. You’ll know the name and face before arrival. Curtis Lane, who leads our San Jose operation, runs crews the way the Garrison Code demands: clean site, documented scope, and a signed written guarantee in your hand at close – not an emailed PDF you’ll never open.
Kitchen Remodel Costs in San Jose
A kitchen remodel in San Jose runs $16,520 to $53,100 in 2026. That covers everything from a cosmetic refresh with new cabinet doors and hardware to a full gut with structural changes, custom cabinetry, and stone surfaces.
Here’s the line-item reality:
- Cabinet installation: $4,720 – $15,340. KraftMaid and Wellborn are our documented lines. Stock boxes with shaker doors sit at the bottom; full-custom with soft-close hardware and pull-out storage sits at the top.
- Countertop installation: $2,360 – $7,670. Laminate at the low end, Cambria or Caesarstone at the high end. Edge profiles and slab thickness move the number.
- Backsplash installation: $945 – $2,950. Subway tile is the least expensive; handmade or glass tile with a pattern layout runs higher because labor hours climb.
- Kitchen island installation: $3,540 – $11,800. A stock island with a butcher-block top prices differently than a 9-foot island with stone, a sink rough-in, and electrical.
A small kitchen remodel in a condo near Santana Row or a townhouse in Berryessa typically runs $10,620 to $23,600 – same room, smaller footprint, fewer cabinets, tighter access. Expect to spend more per square foot on a small kitchen than a large one because the fixed costs – permits, dumpster, crew mobilization – don’t shrink with the room.
Bathroom Remodel Costs in San Jose
A full bathroom remodel in San Jose runs $10,620 to $33,040. A small bathroom or powder room runs $5,900 to $14,160. The gap comes down to waterproofing scope, tile footage, and whether you’re moving the toilet or shower drain.
- Walk-in shower installation: $5,310 – $14,160. The waterproofing system matters more than the tile on top. We install a proper substrate – cement board or a foam pan system – and a full waterproof membrane. Cutting corners here fails inside two years, and then you’re paying for demo twice.
- Tub-to-shower conversion: $4,130 – $11,800. This is the most common bathroom job in San Jose’s older housing stock. You’re removing a cast-iron tub, which is demo labor, then reframing for a shower pan, new valve, and tile or acrylic surround.
- Shower replacement: $3,540 – $10,030. If the drain location stays and the valve is salvageable, this stays lean. If you’re relocating fixtures, expect plumbing permits and a higher number.
- Bathroom vanity installation: $945 – $3,540. Stock vanity with a cultured marble top at the bottom; a custom Wellborn vanity with a quartz top and new faucet rough-in at the top.
Driveway and Exterior Construction Costs in San Jose
Exterior work in San Jose carries its own pricing logic, driven by the region’s clay soils and wet-winter, dry-summer cycle. Ground movement is real here, and concrete that lacks proper base prep will crack within a few seasons.
- Paver driveway installation: $8,260 – $21,240. Pavers handle San Jose’s soil movement better than monolithic concrete because the joints flex. Belgard is the brand we document most often. A paver driveway in Evergreen with a proper gravel base and edge restraint will outlast a cheap concrete pour by decades.
- Concrete driveway installation: $5,310 – $14,160. Four-inch slab with rebar, proper expansion joints, and a broom finish. Removing and repouring an existing driveway adds demo, hauling, and base. Prices climb.
- Asphalt drive paving: $4,130 – $10,620. Faster and less expensive than concrete, but it seals yearly and doesn’t fight the clay soil as well.
- Driveway replacement: $5,900 – $16,520. Demo, haul-off, base correction, pour. If the original driveway has no base rock – and many 1960s-era San Jose homes don’t – the fix is part of this scope.
- Driveway sealing: $295 – $825. Asphalt only. Concrete doesn’t get sealed; it gets cleaned.
- Paver patio installation: $4,130 – $12,980. The variable here is base depth and whether you need a retaining course for grade changes. Flat backyard patios in Willow Glen with good access price lower than sloped lots that need excavation and drainage.
Roof Replacement and Repair Costs in San Jose
Roof work in San Jose runs $9,440 to $23,600 for a full replacement and $470 to $2,125 for a repair. If you’re in the hills or an older neighborhood where architectural shingle or tile is required by HOA or historical review, expect the top of the range.
- Full roof replacement: $9,440 – $23,600. GAF, CertainTeed, and Owens Corning are the shingle lines we document. Tear-off, new underlayment, drip edge, and ventilation. A roof on a 1,500-square-foot ranch in Cambrian runs lower than a two-story with steep pitch in the East Foothills.
- Roof repair: $470 – $2,125. Missing shingles, flashing failure, or a small leak. We price the repair after inspecting the decking – if the substrate under the shingles is rotted, the repair price changes because the scope changes, and you’ll see that in writing before work proceeds.
- Metal roof installation: $17,700 – $47,200. Standing seam. Twice the cost of asphalt, roughly 50 years of service. Making sense for homeowners who plan to stay, or who are installing solar and don’t want a second roof in the panels’ lifetime.
- Tile roof repair: $710 – $2,950. Tile roofs are common in older San Jose subdivisions. Walking a tile roof without breaking tiles is a skill, and the correct replacement tile usually has to be matched. We carry a list of local salvage yards so a single broken clay tile doesn’t turn into a visible patch.
Window and Fence Construction Costs in San Jose
Windows and fences don’t get the attention kitchens do, but they’re common projects in San Jose’s older neighborhoods, and they price out predictably.
- Window replacement: $5,310 – $17,700. The range covers a single window to a full-house swap in a three-bedroom ranch. If your home pre-dates 1978 and original windows are still in place, lead-safe work practices apply, and that’s a line item, not an option.
- Impact window installation: $9,440 – $29,500. Impact-rated glass is specified in hillside fire zones and for new ADUs in certain wildland-urban interface areas of San Jose. The glass unit costs 40 to 60 percent more than standard, and the frames are heavier.
- Vinyl fence installation: $4,130 – $10,620. Post spacing, panel height, and whether we’re hand-digging around tree roots or setting in clean fill. San Jose’s clay hangs onto fence posts, which is good for stability and rough on the crew doing the digging.
- Aluminum fence installation: $4,720 – $11,800. Higher material cost than vinyl, lower maintenance over time. Common around pools, where San Jose code specifies self-latching gates and height minimums.
Home Additions, ADUs, and Garage Conversions in San Jose
This is where San Jose construction pricing gets serious. A home addition runs $53,100 to $153,400. An ADU runs $106,200 to $259,600. A garage conversion runs $35,400 to $94,400.
San Jose has been aggressive about ADU permitting since state law shifted in 2020, and the city’s planning department has a dedicated ADU review path. That doesn’t mean it’s fast. A detached ADU in a backyard in Willow Glen still needs site prep, foundation, utility connections, and plan review – and those line items don’t shrink because the structure is small. An attached ADU or garage conversion costs less because the shell exists and you’re working inside it, but electrical service capacity is the wildcard. Older San Jose homes often have 100-amp panels, and an ADU with a kitchen and laundry typically needs 200 amps. If the panel upgrade is in scope, that’s $3,000 to $6,000 before you run the first wire.
For a full breakdown of ADU costs in this market, our home page has a pricing guide that covers every line item.
How The Garrison Standard Protects Your Construction Budget
Most construction horror stories in San Jose share the same plot: the price moved after demo started, the crew stopped showing up, and the guarantee was a handshake. The Garrison Standard – the framework Bradford Remodeling has operated under since 2004 – exists to remove those variables.
Here’s what it covers. A written price before any work starts, always. Every scope change documented as a written line item before the work proceeds. Background-checked, uniformed technicians on every visit, so you know who is in your house. A live person answering the phone 24/7 – not an answering service, not a callback queue. And the 365-Day Done Right Promise: a full-year written guarantee on every completed project. If the work fails inside that window, Bradford comes back and corrects it at no charge.
Curtis Lane runs our San Jose operation under that same Standard. The crew that shows up is the crew that was described to you. The site gets cleaned at close. The documents you sign are the documents you keep. That’s what “squared away” means here, and it’s been the operating pattern since the Garrison Partners family was established.
How to Save on Construction in San Jose
Saving money on construction doesn’t mean finding the cheapest bidder – in this market, the cheapest bidder is usually the one who didn’t price the permits, the disposal, or the framing correction behind the wall. Saving money means controlling scope and timing.
- Keep the footprint. Not moving walls, not moving plumbing, not moving the electrical panel. Every structural change adds engineering, permit time, and labor. If you want costs at the bottom of the range, work inside the existing envelope.
- Phase the work. If your kitchen and both bathrooms all need work, staging them across 18 months is easier on cash flow and lets you live in the house through the process. Bradford prices each phase as a separate written scope, so you’re never locked into a number for work you haven’t defined.
- Choose documented mid-range materials. Wellborn cabinetry instead of full custom. Caesarstone instead of an exotic slab. Kohler instead of name-beyond-name European fixtures. You get manufacturer specs and warranties, which back our own guarantee.
- Plan around San Jose’s permit cycle. If your project doesn’t need structural review, it doesn’t need structural review time. A tub-to-shower conversion with no drain relocation often clears faster than an ADU. Ask before you buy materials.
- Get a real written price first. Call (669) 272-2637. Our estimates are free, and the number comes in writing. You’ll know what the job costs before you commit, and you can compare it against any other bid with the same line items.
FAQs – Construction Cost in San Jose
How much does a home addition cost in San Jose?
A home addition in San Jose runs $53,100 to $153,400 in 2026. The range covers a single-room bump-out up to a full second-story addition, and the biggest variables are structural engineering, foundation work, and whether the existing electrical panel can handle the added load. Call (669) 272-2637 for a written price on your specific scope – estimates are free.
How much does an ADU cost in San Jose?
ADU construction in San Jose typically costs $106,200 to $259,600 for a detached unit, with attached conversions like garage remodels running $35,400 to $94,400. San Jose’s ADU review process is more streamlined than most Bay Area cities, but utility connections, foundation work, and electrical service upgrades all move the number. Call (669) 272-2637 and we’ll price your lot and plans in writing.
Is it cheaper to remodel or build new in San Jose?
In San Jose, remodeling almost always costs less per square foot than new construction – a kitchen runs $16,520 to $53,100 while a full addition starts at $53,100 and climbs past $153,000. The exception is homes with severe structural issues, where correcting the framing costs more than the finish work would on a clean lot. Bradford inspects the substrate before pricing, so you’ll know which side of that line your house sits on.
How much does a kitchen remodel cost in San Jose?
A kitchen remodel in San Jose runs $16,520 to $53,100, with smaller kitchens in condos and townhouses coming in from $10,620 to $23,600. Cabinets, countertops, and whether you’re moving plumbing or electrical are the three biggest line items. For an exact number, call (669) 272-2637 – the estimate is free and the price comes in writing.
How long does construction take in San Jose?
A bathroom remodel in San Jose typically takes 2 to 4 weeks on site; a kitchen runs 4 to 8 weeks; an ADU or full addition runs 4 to 8 months from permit submittal to final inspection. San Jose’s plan review is the schedule variable nobody controls, which is why we file permits the same week your scope is signed. Call (669) 272-2637 and we’ll give you a realistic timeline for your project.
Written by Curtis Lane, Owner at Bradford Remodeling Co San Jose, serving San Jose since 2004.
Pricing reflects the San Jose market as of 2026. Bradford Remodeling Co San Jose offers free estimates – call (669) 272-2637.
What Our Customers Say
"Replaced old windows and trim while redoing the kitchen. Clean finish work."
- Ron F."Solid job. Small punch list items were done within a few days of the walkthrough."
- Beth K."Home remodel with a new floor plan. Handled structural work and permits without drama."
- Gus R.
