Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterRemodeling Company in San Lorenzo, CA
Home remodeling in San Lorenzo means working with 70- to 80-year-old Bohannon tract homes built on bay mud and alluvial soils, where original post-and-pier foundations, aging framing, and seismic vulnerability from the nearby Hayward Fault make every project a structural conversation before it’s a design one. At Penhallow Remodeling, we specialize in whole-home transformations that address what these homes actually need: foundation stabilization, cripple-wall bracing, and layouts that respect the original footprint while modernizing how families live. Call (936) 259-2607 to schedule your free estimate, and we’ll walk your property with you to show exactly what your Bohannon-era home requires before we talk finishes.
Why San Lorenzo Homes Are Different
San Lorenzo’s identity is inseparable from the Bohannon tract. Developer David D. Bohannon built thousands of nearly identical small wood-frame homes starting in 1944, and today those houses dominate every block of San Lorenzo Village. The uniformity that made rapid construction possible now creates a hidden challenge: because the framing plans repeat house after house, a single unpermitted load-bearing wall removal or addition from the 1970s shows up across dozens of properties, and an experienced local contractor learns to spot those surprises before demo day.
The soil compounds everything. San Lorenzo sits on bay-fringe alluvial and bay mud deposits that shift seasonally, clay layers expanding with winter rains and shrinking through dry summers. That seasonal movement, combined with proximity to the Hayward Fault, drives strict Alameda County requirements for foundation anchoring and cripple-wall bracing that most homeowners don’t discover until they’re already into a remodel. We’ve learned to budget for structural upgrades that other contractors miss entirely.
Our Main San Lorenzo Services
San Lorenzo homeowners call us most often for comprehensive project management and room-specific transformations. Here’s what each service involves in this market.
General Contractor in San Lorenzo
General contracting in San Lorenzo means coordinating structural engineers, geotechnical assessments, and Alameda County permit inspectors around the realities of Bohannon-era construction. We manage the full sequence: foundation evaluation, seismic retrofitting where required, and the finish trades that follow. Every project starts with a written price and a written schedule before any work begins. General Contractor in San Lorenzo
Bathroom Remodeling in San Lorenzo
Bathroom remodels in these compact Bohannon homes often require rethinking the footprint entirely, original layouts having been designed for 1940s standards. We address venting through original rooflines, plumbing routed through post-and-pier crawl spaces, and moisture barriers that failed decades ago. Our crews arrive in uniform, background-checked, and with the written guarantee already prepared. Bathroom Remodeling in San Lorenzo
Kitchen Remodeling in San Lorenzo
Kitchen remodels here mean working within tight original footprints while updating electrical service that predates modern appliance loads. We regularly open walls to find knob-and-tube remnants or unpermitted modifications from prior decades, and we price that discovery work into our upfront written quote rather than surprising you after demo. Cabinetry from KraftMaid and Wellborn, countertops from Cambria and Silestone. Kitchen Remodeling in San Lorenzo
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 Remodeling in San Lorenzo
Whole-home remodeling in San Lorenzo starts with understanding that most Bohannon tract houses need more than cosmetic updating. The original post-and-pier foundations, the cripple walls that fail in seismic events, the unpermitted modifications repeated across neighborhood after neighborhood, these structural realities define every project we take on. We approach Home Remodeling as a systematic process: assess the bones, stabilize what the Hayward Fault and bay mud soils threaten, then build the finishes that make the house yours.
Whole House Remodel
Signs you need it
Your Bohannon-era home still has original wiring, a failing post-and-pier foundation, or you’ve discovered unpermitted wall removals that compromise structural integrity.
What it costs in San Lorenzo
Whole house remodels in San Lorenzo typically run from $45,000 up to $130,000, with structural stabilization and seismic retrofitting adding $8,000 – $25,000 to base finish costs.
How we do it
We start with a structural engineer’s evaluation of foundation and cripple-wall condition, pull Alameda County permits for all structural work, then sequence mechanical, electrical, and plumbing rough-in before any finish trades touch the space.
Home Renovation
Signs you need it
Your home functions but feels dated, with original bathrooms, a kitchen last updated in the 1980s, and energy bills climbing from uninsulated walls and single-pane windows.
What it costs in San Lorenzo
Home renovation projects in San Lorenzo generally fall between $14,000 and $45,000 for kitchen-focused work, or $9,000 – $28,000 for bathroom renovations, depending on whether we encounter hidden structural issues.
How we do it
We preserve the structural envelope where it’s sound, replace systems that have reached end of life, and upgrade finishes with materials from recognized trade brands, all priced in writing before demolition starts.
What Home Remodeling Costs in San Lorenzo
| Item | Typical range in San Lorenzo |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
Do you pull permits for home remodeling in San Lorenzo?
Yes, we pull all required Alameda County permits for structural, electrical, and plumbing work, and we schedule inspections at rough-in and final. Call (936) 259-2607 to discuss your project and we’ll outline exactly which permits apply.
Will the price change if you find foundation problems?
We price common Bohannon-era issues, including cripple-wall bracing and foundation anchoring, into our upfront written quote based on what we observe during evaluation, so the number you sign is the number on your invoice. Call (936) 259-2607 for a free estimate.
Brands We Service in San Lorenzo
We install cabinetry from KraftMaid and Wellborn, countertops from Cambria, Silestone, and Caesarstone, and fixtures from Kohler, Moen, and Delta. For exterior projects, we work with James Hardie siding and Therma-Tru entry systems. Parts are sourced through Bay Area distributors with typical turnaround of 2 – 3 weeks for standard orders. our brands
Pricing for Remodeling Company in San Lorenzo, CA
| Service | Typical range in San Lorenzo |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Roof Replacement | $8,000 – $20,000 |
Prices in San Lorenzo run higher than inland markets because structural stabilization, seismic retrofitting, and Alameda County permit requirements add scope that simpler cosmetic projects don’t face. Every homeowner receives a written price before any work starts, the number on day one is the number on the invoice, guaranteed.
Neighborhoods We Serve in San Lorenzo
We work across San Lorenzo Village and surrounding areas, from the original Bohannon tracts near Lewelling Boulevard to the later phases closer to Hesperian Boulevard. Crews dispatch from our San Francisco Bay Area coordination office, with typical arrival windows scheduled in writing when you book.
- San Lorenzo Village (original Bohannon tracts)
- Lewelling Boulevard area
- Hesperian Boulevard corridor
- Washington Manor
- Ashland adjacent
Service Area – Cities Near San Lorenzo
Our crews serve homeowners throughout the East Bay corridor, including Castro Valley, CA to the east with its hillside foundations and different seismic considerations, San Leandro, CA to the north with its mixed-era housing stock, Union City, CA to the south where newer developments present different challenges, and Oakland, CA to the northwest with its varied topography and older Victorian-era structures. Each city carries distinct permit requirements and soil conditions that we factor into every written estimate.
Serving San Lorenzo, CA - Our Local Coverage Area
We’re based in the San Lorenzo 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 San Lorenzo
A live person answers our phone 24/7, and we typically schedule evaluations within 3 – 5 business days. Your written estimate follows within 48 hours of our site visit.
Most San Lorenzo neighborhoods lack HOAs, but historic or specific tract overlays may require design review; we check Alameda County records and any applicable neighborhood covenants before work begins.
Alameda County enforces strict seismic standards due to Hayward Fault proximity, requiring engineered plans for foundation work, cripple-wall bracing, and any structural modification; we include permit costs and scheduling in every written quote.
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 San Lorenzo Customers Say
"Gutted and redid the master bath. They gave me a schedule and actually stuck to it. Any time there was a choice to make they called me instead of guessing. Love the result."
- Kayla Benton"Kitchen and dining room opened up into one space. They were honest about which wall could come down and which couldn't, no sugarcoating. Dust was kept way down with plastic everywhere."
- Oscar Benitez"Redid two bathrooms at once. The crew protected the floors and cleaned up every single day before leaving. Quote was detailed and there were no mystery charges at the end."
- Tricia Dawson