Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindow Company in San Lorenzo, CA
Most window and door replacement jobs in San Lorenzo run between $650 and $1,400 per opening, with full-home projects typically ranging from $8,000 to $18,000 depending on framing condition and material choice. We’re Lightwell Windows & Doors, the independently operated Cedarwell company serving San Lorenzo from our Bay Area office, and we specialize in the custom-fit work this postwar community demands. Call us at (562) 478-8017 to schedule your free written estimate.
Why San Lorenzo Homes Are Different
San Lorenzo was built almost entirely by the David D. Bohannon Organization starting in 1944 as a planned postwar community, leaving a dense, uniform stock of 70-plus-year-old tract homes whose original steel-casement and early aluminum single-pane windows are now actively corroding in the salt-laden marine air rolling off the nearby bay. Because Bohannon built to just a handful of repetitive floor plans, rough openings rarely match any modern standard size, meaning nearly every window replacement job here requires custom-ordered units or framing modifications.
San Lorenzo sits less than two miles from the tidal flats of San Francisco Bay, so homes receive a near-daily dose of salt-carrying marine fog that corrodes aluminum frames, eats through weatherstripping, and degrades dual-pane seals faster than in inland East Bay cities. The periodic hot Diablo wind days that drive temperatures into the 90s then stress those same weakened seals with rapid thermal expansion. Original window and door frames are frequently out of plumb after decades of settlement, and non-standard opening dimensions are the rule rather than the exception.
Because San Lorenzo is unincorporated Alameda County, window and door replacement permits are pulled through the Alameda County Building Department, not a local city hall. Contractors who work primarily in adjacent incorporated cities like San Leandro or Hayward are routinely caught off guard by the county’s separate submittal portal, fee schedule, and inspection queue, which can add days to project timelines if not handled from the start.
Our Main San Lorenzo Services
San Lorenzo homeowners call us most often for two types of work: replacing failing original windows in Bohannon-era homes, and installing new doors that actually seal against the salt air. Each job follows our C.A.R.E. values on site, and every price is written before any work starts.
Window Replacement in San Lorenzo
We remove corroded steel casement and early aluminum windows from San Lorenzo’s postwar homes and install modern units sized to the actual opening, not a standard catalog dimension. Most jobs require reframing or custom jamb extensions because Bohannon’s plans used sizes no manufacturer stocks today. We pull Alameda County permits, schedule county inspections, and protect floors with drop cloths throughout. Our crew uses quiet tools during nap time where kids are in the home, and we photograph the clean-up before we leave. Window Replacement in San Lorenzo covers full-frame versus insert options, brand selection, and what the county inspector looks for.
Window Installation in San Lorenzo
New window installation in San Lorenzo typically means cutting openings into original walls that have settled for 70-plus years, or adding windows to dark rooms in homes built before modern daylighting standards. We measure plumb and square on site because the plans can’t be trusted after this much time. Our technicians explain the written price before touching anything, ask before moving furniture, and respect quiet hours. Pet-safe sealants are used wherever there’s a choice. Window Installation in San Lorenzo details new-construction versus retrofit methods and how we handle the county permit process.
Door Installation in San Lorenzo
San Lorenzo’s salt air destroys door frames and weatherstripping faster than inland cities, so we specify fiberglass and composite materials that won’t absorb moisture or corrode. Entry door installation often requires reframing out-of-plumb openings from settled Bohannon construction, and patio door replacements must account for non-standard rough heights. We background-check and uniform every technician, and a live person answers our phone 24/7 if questions come up after install. Door Installation in San Lorenzo covers security, energy efficiency, and brand options for this climate.
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.
Brands We Service in San Lorenzo
We carry eight manufacturer brands so the recommendation fits your home, not our preferred vendor. For San Lorenzo’s salt-air conditions, we often specify PGT impact-rated vinyl, CGI aluminum with marine-grade finishes, or ViewLux fiberglass lines that resist corrosion without the thermal transfer of metal. CWS vinyl options work well for budget-conscious full-home replacements. We stock common hardware and weatherstripping locally, so most service calls don’t wait on shipping. See our brands for full specifications and warranty details.
Pricing for Window Company in San Lorenzo, CA
| Service | Typical range in San Lorenzo |
|---|---|
| Single window replacement (retrofit) | $650 – $950 |
| Single window replacement (full-frame) | $900 – $1,400 |
| Full-home window replacement (10-15 openings) | $8,000 – $15,000 |
| Full-home window replacement (15-25 openings) | $12,000 – $22,000 |
| New window installation (new construction opening) | $800 – $1,200 |
| New window installation (retrofit into existing wall) | $1,000 – $1,600 |
| Entry door installation (prehung, standard size) | $1,200 – $2,200 |
| Entry door installation (custom size, reframing required) | $2,000 – $3,500 |
| Patio/sliding door replacement | $1,800 – $3,200 |
| French door installation | $2,500 – $4,500 |
| Permit and inspection fees (Alameda County) | $200 – $450 |
| Reframing/modification per opening | $150 – $400 |
Prices in San Lorenzo run toward the higher end of these ranges when original Bohannon openings require reframing, when salt corrosion has damaged surrounding trim, or when custom-sized units are needed. We put every price in writing before any work starts, with no change orders unless you add scope, and we stamp every job with our 365-Day Done Right Promise.
Neighborhoods We Serve in San Lorenzo
We work across all of San Lorenzo’s unincorporated areas, from the original Bohannon tracts near Hesperian Boulevard to the mid-century additions closer to Washington Avenue. Crews dispatch from our Bay Area office and typically arrive within scheduled windows throughout the day.
- Hesperian Boulevard corridor
- Washington Avenue area
- Lewelling Boulevard neighborhoods
- San Lorenzo Village (original Bohannon tracts)
- Meekland Avenue vicinity
Service Area – Cities Near San Lorenzo
Our crews serve the full East Bay corridor surrounding San Lorenzo, including Castro Valley, CA to the south, San Leandro, CA to the west, Union City, CA to the southeast, and Oakland, CA to the northwest. Each city has its own permit environment and housing stock, and we adjust our approach accordingly.
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 Window Company in San Lorenzo
No city permit, because San Lorenzo is unincorporated. We pull permits through the Alameda County Building Department, which uses a separate online portal and fee schedule from neighboring San Leandro or Hayward. We handle the submittal, pay the fees, and schedule county inspections as part of every job. Call (562) 478-8017 if you want us to check your specific project requirements.
Most full-home projects in San Lorenzo take three to five working days, with an extra day or two when multiple openings need reframing to fit modern standard sizes. Alameda County inspections typically add one business day to the schedule. We give you a written timeline with your written price before work starts, and we coordinate inspection timing so you’re not waiting around. Call (562) 478-8017 for a project-specific estimate.
We can come close with modern materials that perform far better. Several of our brands, including ViewLux and CGI, offer divided-light grids and slim frame profiles that echo the original steel casement aesthetic without the corrosion or single-pane inefficiency. We bring sample boards to your estimate so you can see the match in your actual light. Call (562) 478-8017 to schedule a look.
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors 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
"New patio slider. Clean install, they protected the floor and hauled off the old door. Quiet, polite crew that worked around my work calls without complaint."
- Andre Bellamy"They replaced a big foggy picture window. Careful with the furniture, laid down protection, and left no mess at all. Calm and respectful crew, and the view is clear again."
- Teresa Okafor"Replaced six windows. The crew laid runners through the house and vacuumed each room as they finished. With a crawling baby, that no mess thing meant a lot. Windows are gorgeous."
- Rosalind Kemp