Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across San Gabriel
Finding a general contractor in San Gabriel who actually shows up, gives you a written price before swinging a hammer, and stands behind the work is harder than it should be. Most homeowners we meet have already been burned once by a verbal estimate that ballooned or a repair that cracked again six weeks later. That’s exactly what we set out to change. Our crews know San Gabriel’s neighborhoods, its permit quirks, and its soil. If you’re planning a kitchen remodel, bathroom remodel, or whole-home addition, call (936) 259-2607 for a free estimate with a written number you can hold us to.
Why Penhallow Remodeling Is San Gabriel’s Preferred General Contractor Company
We don’t ask you to trust us on charm. We put the price in writing before any work starts, give you a real arrival window, and back every project with the 365-Day Done Right Promise: if something fails inside the guarantee period, we come back and fix it at no charge. No service call fee, no re-inspection fee, no debate. That promise is written into every job we do in San Gabriel.
Our reputation in San Gabriel comes from doing what we said we’d do, on schedule, at the number we gave you. Background-checked, uniformed technicians handle every job, so you know exactly who’s walking into your home. And when you call, a live person answers. Not a voicemail prompt. Not a callback window. A real human, 24/7.
Trevor Nash leads our team, and he’s the kind of contractor who explains what substrate means and then tells you exactly why it matters behind your tile. That’s the Kingswell Way, which has governed how we operate since 2004: say the price before the work, show up in the window we gave, leave the place cleaner than we found it.
Hire a General Contractor in San Gabriel
Hire a General Contractor in San Gabriel when the job is bigger than a patch or a quick swap. That means a full kitchen remodel, a bathroom gut, a room addition, an ADU in the backyard, or converting the garage into living space. These projects touch structure, plumbing, electrical, and often a permit counter. Doing it in pieces with four different trades rarely saves money. It usually costs more, takes longer, and leaves you managing arguments between subs. Our General Contractor team manages the whole sequence: permits, demo, rough-in, finishes, inspection, sign-off.
In San Gabriel specifically, the big variable isn’t just square footage. It’s what’s behind the walls when we open them. Older Craftsman bungalows on shallow post-and-pier foundations hide surprises. Newer tract homes have builder-grade finishes that fail at the seams. Either way, you’ll want a written line-item price before demo day. That’s standard for us.
Kitchen and Bath Scope
A kitchen remodel in San Gabriel runs $14,000 – $45,000 depending on cabinet line, countertop material, and whether we’re moving plumbing. Bathrooms typically fall between $9,000 and $28,000. Those are real ranges, not lowball teasers. The number we hand you is the number on the invoice.
Additions and ADUs
Home additions in San Gabriel start around $45,000 for a single room and run to $130,000 for a larger footprint. ADU construction sits between $90,000 and $220,000. These are the projects where drainage and grading matter most. San Gabriel’s clay soils shrink in the dry summers and swell in winter rains, so we design drainage in from the start, not after the slab cracks.
General Contractor Services in San Gabriel
General Contractor Services in San Gabriel cover more than swinging a hammer. We handle the parts of a remodel most people don’t see until they go wrong: permit sequencing, historic review where it applies, HOA architectural submittals, change orders in writing, and structural work that protects your builder warranty. When we work near the Mission District, we budget 4 – 6 extra weeks and a historical consultant fee into the bid because we know the city will flag anything within a few blocks of the 1771 San Gabriel Mission for cultural resource review and California SHPO coordination. Contractors in Alhambra or Rosemead never face that. We do, and we plan for it.
Our focus stays on kitchen remodeling, bathroom remodeling, and whole-home remodels. We’re not trying to be a roofer one day and a pool builder the next. That focus is why we can give you a written price before work starts and a written guarantee when it’s done.
Builder-Grade Upgrade Path
If you bought a home built in the last 15 years in one of San Gabriel’s infill developments, your first upgrades are almost always the kitchen cabinets, the bathroom vanity, and the thin laminate countertops. We quote KraftMaid and Wellborn cabinetry because they’re solid trade lines that don’t delaminate at the seams the way thermofoil does. Pair them with Cambria, Silestone, or Caesarstone counters and you’re not just updating the look. You’re installing products that carry their own warranties alongside ours.

Permit and HOA Navigation
San Gabriel has a layered approval process in the historic overlay zone, and newer HOA architectural committees here often mirror the city’s visual-impact standards. We run submittals before demo day, not after. We’ve had HOAs require finish samples and color matches on exterior vents. Fine. We plan for it. You shouldn’t have to guess what your HOA will accept when you’re spending $40,000 on a remodel.

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.
Trusted Brands We Service in San Gabriel
We install and service materials from brands San Gabriel homeowners recognize and trust: KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, Kohler and Moen fixtures, and James Hardie siding. Our suppliers hold local stock in the San Gabriel Valley, which means when a cabinet door arrives damaged or a faucet is backordered, we’re not waiting three weeks on a truck from out of state. We’re swapping it locally and keeping your schedule moving. We also work with prefab and panelized systems from companies like Abodu and Dvele when an ADU project calls for faster, tighter construction. You get the same written guarantee either way.
Common General Contractor Problems We See in San Gabriel Homes
- Historic adjacency review freezing a demo permit. Pulling a demo permit near the Mission District without checking historic adjacency triggers a 4 – 6 week freeze mid-project. We check the overlay map before we write the bid, so the schedule accounts for it.
- Builder warranty voided by a verbal change order. Tearing out builder-grade finishes is fine, but if the change isn’t in writing, the structural warranty gets murky fast. We keep every change order documented so your new-home warranty on the structure stays intact.
- Clay soil shrink-swell cracking a new slab. San Gabriel’s roughly 18 inches of annual rainfall lands almost entirely in winter. The clay-rich alluvial soil swells, then shrinks hard through the dry summer. A new slab or addition without proper grading and drainage design can crack within a season. We design for it from the first drawing.
- Builder-grade thermofoil cabinet peeling. We see this constantly in homes built between 2010 and 2020. The cabinet boxes are often fine, but the thermofoil facing peels at the seams. The fix is usually a new door and drawer front package, not a full cabinet tear-out. We’ll tell you which is cheaper and which one actually lasts.
Pricing for General Contractor in San Gabriel, CA
Here’s what you should expect to pay for common projects in San Gabriel. These ranges reflect local material costs, permit fees, and the extra layer of plan review that comes with historic overlay adjacent work. A kitchen remodel runs $14,000 – $45,000. A bathroom remodel runs $9,000 – $28,000. A home addition sits between $45,000 and $130,000. An ADU runs $90,000 – $220,000. A garage conversion falls between $30,000 and $80,000. What moves a number to the top of the range: moving plumbing stacks, structural retrofits on older foundations, Mission-area historic review, and high-end cabinet and countertop selections. What keeps it at the bottom: keeping the existing footprint, preserving plumbing locations, and choosing mid-line trade brands.
| Project Type | Typical Range in San Gabriel |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
Every estimate we give is free, and it’s a written line-item number, not a range. Call (936) 259-2607 to schedule yours.
We Also Serve Cities Near San Gabriel
Our crews work throughout the San Gabriel Valley, so if you’re just across the city line, we’ve got you covered. We serve San Gabriel and the surrounding communities including San Marino, Temple City, Alhambra, and Rosemead. Whether you’re in a 1920s Craftsman near the Mission or a 2015 tract home off Valley Boulevard, the same written guarantee applies.
Serving San Gabriel, CA - Our Local Coverage Area
We’re based in the San Gabriel 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 Gabriel
No, as long as the work is done by a licensed contractor and every change is documented in writing. The structure warranty on your home covers the frame, foundation, and major systems. Cosmetic upgrades like cabinets and counters don’t void it. But if the remodel touches plumbing, electrical, or structural framing, the changes need permits and written change orders. We handle that documentation so there’s no gap in your coverage if a subfloor issue shows up two years later. Call (936) 259-2607 if you want to walk through your warranty language before demo starts.
It depends on your HOA’s architectural guidelines, but in San Gabriel’s newer master-planned infill developments, the answer is frequently yes. Many local HOAs require architectural submittals before any exterior-visible change, and some require finish samples and color matches even for interior work that affects exterior vents or window placement. We check your HOA’s CC&Rs before we write the bid, and we handle the submittal packet so your schedule doesn’t stall at the committee table.
Start with the kitchen cabinets and counters, then the primary bathroom vanity and shower. Those are the finishes San Gabriel homeowners replace first, and they’re the ones that show wear fastest. KraftMaid or Wellborn cabinet swaps with Cambria or Silestone counters are a strong value because the products carry their own warranties. Skip tearing out good subfloor or moving plumbing unless you’re already at the top of the budget. We’ll tell you what’s fine as-is. That’s the honest read you’re paying us for in the estimate, and it’s free either way.
Yes, if your project falls within the Mission District historic overlay or within a few blocks of the 1771 San Gabriel Mission. The city flags projects for historical adjacency review, which adds cultural resource evaluation and California SHPO coordination to the permit path. That means 4 – 6 extra weeks and a historical consultant fee in most cases. We check the overlay map before we quote, so you’re not finding out about the delay after demo is halfway done.
Because San Gabriel’s clay-heavy alluvial soils shrink in the long dry summers and swell hard when the winter rains arrive. That seasonal movement puts real stress on slabs and foundations. A new addition or ADU that doesn’t account for drainage and grading can crack within a year. We design drainage, soil prep, and waterproofing into the plans from the first drawing, not as a change order after a problem shows up. Call (936) 259-2607 for a free estimate and we’ll walk you through what your specific lot needs.
Written by Trevor Nash, Owner at Penhallow Remodeling, serving San Gabriel and the wider San Gabriel Valley.
Call Penhallow Remodeling at (936) 259-2607 for a free, written estimate on your San Gabriel remodel. A real person answers, any hour.







Before
After
Before
After
Before
After