Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Remodeling Company in Alum Rock, CA
Home renovation in Alum Rock means working with houses that were built decades ago, on lots that slope toward Alum Rock Park or run along Alum Rock Avenue, under Santa Clara County permit rules rather than San Jose’s. Gold Star Contractors has served Alum Rock since 2012, and we manage full interior remodels, exterior replacements, and ADU work through one accountable team. Call (833) 382-8544 for a free estimate.
Why Alum Rock Homes Are Different
Alum Rock is an unincorporated pocket of east San Jose, which means construction here runs through Santa Clara County permitting instead of city of San Jose rules. That changes the paperwork, the inspection sequence, and the timeline on nearly every project we take on in the 95127 ZIP code. The housing stock is mostly mid-century and pre-1970s single-family homes, along with small multi-unit buildings on subdivided lots. Many of these homes still carry original framing, galvanized plumbing, and electrical panels that were sized for a different era.
The terrain adds another layer. Homes near Alum Rock Park and along the canyon edges sit on slopes and older fill, so foundation, grading, and drainage issues surface more often than they do on the flat valley floor. Add in hot, dry summers and mild, wet winters, and exterior materials take real punishment. Roofs, siding, and exposed wood framing wear faster here, which means renovation scopes frequently include structural upgrades and deferred-maintenance repairs that a newer home would not need. A kitchen remodel in Alum Rock is rarely just cabinets and countertops; it is often the moment we discover a sagging floor joist or a drain line that has been failing quietly for years.
Styles & brands we work with
Our Main Alum Rock Services
Two services dominate the calls we get from Alum Rock homeowners: full general contracting for complex, multi-trade projects, and whole-home remodeling for houses that need coordinated updates across several rooms at once.
General Contractor in Alum Rock
Most Alum Rock projects touch multiple trades, and that is where a single accountable contractor earns the fee. A homeowner adding a second unit or reworking a hillside foundation needs framing, plumbing, electrical, and grading to happen in the right order, with county inspections scheduled correctly. We manage that sequence end to end. If you are planning an addition, an ADU, or a structural fix on an older Alum Rock lot, start with our General Contractor in Alum Rock page. It explains how we scope work on unincorporated county properties and what the permit path actually looks like.
Home Remodeling in Alum Rock
Remodeling an Alum Rock home usually means opening walls in a house that has been through decades of piecemeal changes. We find additions that were never properly tied into the original framing, electrical runs that would not pass today, and subfloors that have shifted with the hillside. A remodel here is a retrofit, not a fresh start. Our Home Remodeling in Alum Rock page walks through how we approach kitchens, baths, and full interior updates on the older stock that defines this area, including how we phase the work so a family can keep living in the house while we rebuild it.
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.
Home Renovation in Alum Rock
Home renovation in Alum Rock is a different animal from renovation in a newer subdivision. The houses here were built before modern energy codes, before seismic retrofitting became standard, and often before anyone thought about how a hillside lot would drain in a wet winter. That means a renovation is frequently a correction of decades of deferred maintenance, not just a cosmetic update. As a full-scope Home Renovation contractor, we plan each project around the age of the framing, the condition of the original plumbing and electrical, and the realities of Santa Clara County permitting. We specify the brand, manage the install, and stand behind the result.
Home Renovation Contractors
Signs you need it
You are planning work that touches multiple rooms or systems at once, and you do not want to juggle separate crews for framing, plumbing, electrical, and finish work.
What it costs in Alum Rock
Full home renovation on an Alum Rock property typically falls between $45,000 and $130,000 depending on square footage, structural condition, and finish level.
How we do it
We start with a structural and systems assessment, then produce a written scope, pull county permits, and run the project through a single project manager from demolition to final inspection.
Home Renovators
Signs you need it
Your home has original 1960s or 1970s systems, piecemeal additions, or rooms that were updated at different times and no longer work together as a cohesive floor plan.
What it costs in Alum Rock
Kitchen renovations in Alum Rock run $14,000 to $45,000, while a small kitchen remodel lands between $9,000 and $20,000.
How we do it
We relocate or upgrade plumbing and electrical, correct framing issues, and install cabinetry, countertops, and fixtures from our 50-plus manufacturer brand portfolio.
Home Improvement Contractors
Signs you need it
You have a list of updates that never seem to get done because each one requires a different trade, a different permit, and a different schedule.
What it costs in Alum Rock
A bathroom remodel on an Alum Rock home ranges from $9,000 to $28,000, with a small bathroom remodel at $5,000 to $12,000.
How we do it
We bundle the trades under one contract, sequence the work so inspections pass on the first visit, and coordinate everything from Schluter waterproofing to Kohler and Toto fixture installation.
Renovation Contractors
Signs you need it
Your Alum Rock home needs exterior work such as roofing, siding, or windows at the same time as interior updates, and you want one team accountable for both.
What it costs in Alum Rock
Roof replacement on Alum Rock homes runs $8,000 to $20,000, and window replacement typically lands between $4,500 and $15,000.
How we do it
We coordinate exterior and interior phases so weather-sensitive work happens in the right season, using brands like GAF, James Hardie, PGT, and CertainTeed.
What Home Renovation Costs in Alum Rock
| Item | Typical range in Alum Rock |
|---|---|
| Full home renovation | $45,000 – $130,000 |
| Kitchen remodel | $14,000 – $45,000 |
| Bathroom remodel | $9,000 – $28,000 |
How long does a full home renovation take in Alum Rock?
A full renovation on an older Alum Rock home typically runs 4 to 9 months, because we often uncover framing, drainage, or electrical issues once walls are open. County permits and inspections add time compared to unpermitted work. Call (833) 382-8544 to get a realistic timeline for your specific house.
Will the price change once work starts on an Alum Rock renovation?
We write fixed-price scopes after our structural assessment, so the number does not move unless you change the scope. On older Alum Rock homes, we build a contingency line into the written estimate for hidden conditions, and we discuss any discovery with you before spending a dollar of it.
Brands We Service in Alum Rock
We install and service materials from more than 50 manufacturers, including Abodu and Dvele for prefab ADUs, Cambria and Caesarstone for countertops, GAF and CertainTeed for roofing, and James Hardie for siding. Parts and samples come straight from our supplier network, which keeps turnaround predictable. See our brands for the full list.
See the difference
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AfterPricing for Remodeling Company in Alum Rock, CA
| Service | Typical range in Alum Rock |
|---|---|
| Home addition | $45,000 – $130,000 |
| ADU construction | $90,000 – $220,000 |
| Garage conversion | $30,000 – $80,000 |
| Kitchen remodel | $14,000 – $45,000 |
| Bathroom remodel | $9,000 – $28,000 |
| Roof replacement | $8,000 – $20,000 |
| Window replacement | $4,500 – $15,000 |
| Paver patio installation | $3,500 – $11,000 |
| Vinyl fence installation | $3,500 – $9,000 |
| Countertop installation | $2,000 – $6,500 |
| Driveway sealing | $250 – $700 |
| Backsplash installation | $800 – $2,500 |
Prices in Alum Rock run higher than the valley floor when a home sits on a slope or needs foundation, grading, or drainage correction before finish work can start. Our written estimates are line-itemed and fixed before we begin, so the price we quote is the price you pay.
Neighborhoods We Serve in Alum Rock
We work across the entire 95127 ZIP code, from the canyon-edge streets near Alum Rock Park to the flatter lots along Alum Rock Avenue and the residential streets branching off Toyon and McKee. Our crews know the unincorporated county permit path and the hillside conditions that come with each pocket.
- Alum Rock Park area
- Alum Rock Avenue corridor
- Toyon area
- McKee corridor
- Country Club area
Service Area – Cities Near Alum Rock
Gold Star Contractors serves Alum Rock and the surrounding east side communities. We regularly work in East Foothills, CA, San Jose, CA, Seven Trees, CA, and Buena Vista, CA. If you are planning a renovation anywhere in this part of the county, call us for a free estimate.
Serving Alum Rock, CA — Our Local Coverage Area
We’re based in the Alum Rock 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 Remodeling Company in Alum Rock
Yes. Alum Rock falls under Santa Clara County permitting, not the city of San Jose, so we pull county permits and schedule county inspections on every project that requires them. Unpermitted work on an unincorporated lot creates problems when you sell or refinance, and we will not cut that corner.
Most Alum Rock projects start within 2 to 6 weeks after the contract is signed, depending on the permit queue and material lead times from our manufacturer partners. Larger structural or hillside work may take longer for county plan review. Call (833) 382-8544 and we will give you a straight answer for your scope.
Yes, and we see them on a large share of the Alum Rock homes we renovate. Our scopes include grading, foundation repair, retaining walls, and drainage correction when the lot requires it. We would rather find a slope issue during planning than after your remodel is finished.
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 Alum Rock Customers Say
"Excellent build. Costs came in about six percent over the original contract, driven mostly by material price movement during the build, which he documented each time."
— Doug Mercer"Honest people. That's getting rare."
— David Kim"Weekly site meeting, every week, with a written summary afterward. I always knew where the money and the schedule stood."
— Andre Robinson