Frequently Asked Questions About Construction in Foster City
If you’re researching a remodel, an ADU, a new roof, or exterior hardscape in Foster City, you probably have the same questions every homeowner asks us before signing a contract. We’ve collected the ones we hear most here, with straight answers and real numbers, so you can plan your project without a sales call first. If your question isn’t here, our line is open.
Pricing & Estimates
How much does construction service cost in Foster City?
Most mid-to-large remodeling projects we handle in Foster City land between $18,000 for a single room refresh and $250,000+ for a full-home interior and exterior renovation, with kitchen remodels typically running $55,000 – $95,000, bathroom remodels $22,000 – $45,000, asphalt shingle roof replacements $14,000 – $28,000, and backyard hardscape (pavers, patio, walkway) $12,000 – $40,000. Those ranges reflect Foster City specifically: homes here sit on fill over bay mud, which means foundation and drainage details matter more than in the hills, and many properties date to the 1960s – 1980s build-out, so we budget for the surprises that age brings – galvanized plumbing, undersized electrical panels, and settling at exterior walls. The numbers below are line-item starting points; your written estimate will be exact after we walk the property.
| Project | Typical Foster City Range |
|---|---|
| Kitchen remodel (full gut, mid-grade finishes) | $55,000 – $95,000 |
| Bathroom remodel (full, single bath) | $22,000 – $45,000 |
| Asphalt shingle roof replacement (GAF, Owens Corning) | $14,000 – $28,000 |
| Whole-home window replacement | $12,000 – $30,000 |
| Hardscape (Belgard, Techo-Bloc patio + walkway) | $12,000 – $40,000 |
| ADU (prefab or turnkey, permitting to finish) | $150,000 – $350,000+ |
| James Hardie siding (whole-home re-side) | $18,000 – $38,000 |
Call (877) 752-3868 for a free estimate – we’ll give you a written scope with material tiers before any deposit is due.
Do you offer free estimates?
Yes, estimates are free and include an on-site walkthrough. We measure the space, check the systems that will be touched, and ask about your material preferences (cabinetry finish, countertop surface, roofing line) before we price anything. Free walk-throughs also let us spot the Foster City issues that don’t show up on paper – a slab that’s settled near a bay-side lot, or a roof that’s aged faster than the neighboring house due to salt air exposure. Your estimate arrives as a written line-item scope, not a phone number.
Do you require a deposit, and how are payments scheduled?
We collect a modest deposit to lock your date and order long-lead materials (custom cabinetry, windows, and prefab ADU components can take weeks to arrive), then bill in milestones as work is completed and inspected. Final payment is due after your walkthrough and punch list, not before. Every payment tier is written into the contract, so there are no surprise invoices mid-build.
Is it cheaper to repair or replace in Foster City?
For a Foster City home older than 40 years, replacing usually costs less over a 10-year horizon than repeated repairs to the same failing system. A 1960s roof at the end of its second shingle layer will keep costing you after every winter storm; a single replacement with GAF or Owens Corning warranty protection resets that clock. The same logic applies to galvanized plumbing and single-pane aluminum windows, both common in Foster City’s original subdivisions. If you’re on the fence, call us – a 30-minute walkthrough will tell you which side of the line your system is on.
Service & Scheduling
How fast can you respond?
We typically respond to new inquiries within one business day and schedule on-site visits within a few days, faster for urgent issues like an active roof leak or damaged exterior. Foster City is small enough that we can often walk a property the same week you call. Reach out at (877) 752-3868 and we’ll confirm the earliest slot.
Do you offer emergency construction service?
We handle urgent repairs caused by storm damage, active leaks, and structural issues during business hours, prioritized ahead of scheduled projects. We’re not a 24/7 emergency service, so if water is coming through your ceiling right now, call us and we’ll get you on the schedule as fast as we can while you take steps to limit further damage. For a genuine safety hazard – a sagging ceiling, exposed wiring, gas smell – call the appropriate utility or emergency service first, then call us for the repair.
Do you handle projects that touch both interior and exterior?
Yes – that’s exactly where a full-scope general contractor earns their fee. A kitchen remodel that also needs a new window and a re-side of the wall behind it doesn’t require two separate companies and an awkward handoff; one contract covers all of it. The same goes for a bathroom remodel that borders an exterior wall, or an ADU project with new hardscape, fencing, and a roof. One contract, one project manager, one point of contact from the roofline to the foundation.
Can you handle a project while we’re living in the home?
Yes, and most of our Foster City clients stay in the house during the work. We plan phased schedules so the kitchen or bathroom stays functional as long as possible, seal off dust zones, and set daily cleanup routines. Whole-home projects are easier to live through when we sequence interior and exterior work on a single timeline rather than two contractors fighting for the same driveway.
How do you sequence a multi-scope project?
Multi-scope projects follow a standard sequence that we adapt to your home.
- Walkthrough and scope: we measure every area involved – interior and exterior – and lock material choices before the contract.
- Permits: filing with the City of Foster City and pulling trade permits for plumbing, electrical, and roofing in parallel.
- Exterior envelope first: roofing, siding, windows, and doors are completed before interior finishes, so water stays out and finishes stay protected.
- Interior rough-in: plumbing and electrical rough-ins, then inspections.
- Finish work: drywall, cabinetry (KraftMaid, Wellborn), countertops (Cambria, Silestone), plumbing fixtures (Kohler, Grohe, Toto, Moen), and paint.
- Exterior hardscape and site work: Belgard or Techo-Bloc patios, walkways, fencing, and final grading.
- Final inspection, punch list, and walkthrough: you sign off before the final payment.
Licensing & Trust
Are you licensed and insured?
Yes, Ashford Contractors operates as a state-licensed general contractor and carries insurance coverage for our projects. We’re happy to provide our license and insurance documentation with any written estimate – ask for it at the walkthrough. For homeowners, that means the company carrying the work is accountable for it, not a rotating cast of subs.
Do you guarantee your work?
Yes, we stand behind our workmanship, and our documentation explains how. Products carry their own manufacturer warranties – GAF and Owens Corning on roofing, James Hardie on siding, Therma-Tru on doors, Kohler and Moen on fixtures – and Ashford backs the installation side. If something we installed fails in the way we installed it, we come back and make it right, and the warranty language is written into your contract.
Are you a handyman or a full general contractor?
We’re a full-scope licensed general contractor, not a handyman. We take on substantive renovation projects – kitchens, bathrooms, roofing, siding, whole-home exterior work, hardscape, and ADU builds – that touch multiple systems and need a single accountable contractor. For a leaky faucet or a single shelf install, we’re honestly not the right fit; those calls should go to a handyman, and we’ll tell you so.
How do you handle permits in Foster City?
We pull all required permits as part of the contract – you don’t file anything. Foster City has its own plan check, inspection, and ADU review process that varies by neighborhood, and some properties near the bay carry additional environmental or flood-related review requirements. We handle filing, coordinate inspections, and keep you informed at each stage so no phase of the build stalls waiting on paperwork.
Specific Services
Do you handle kitchen remodeling?
Yes, full kitchen remodeling is a core service, from cabinetry and countertops to full gut renovations. We work with KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, and Kohler, Grohe, and Moen plumbing fixtures – so you choose the products and we make them fit. Most Foster City kitchen remodels take 6 – 10 weeks once materials are on-site, longer if you’re relocating plumbing or wall positions. A full project brief lives with our General Contractor in Foster City service page.
Do you handle bathroom remodeling?
Yes, bathroom remodeling is one of our most-requested interior services. A full bath typically runs $22,000 – $45,000 in a Foster City home, with fixture selection through Kohler, Toto, Grohe, and Moen. We handle wet-area waterproofing, tile, ventilation, and any plumbing relocation that comes with the layout change. Older Foster City bathrooms often hide galvanized supply lines or single-layer subfloors behind the wall, and we inspect for those before we quote.
Do you handle roofing?
Yes, we install and replace roofing across the full spectrum of asphalt shingles and specialty lines through GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That range means we can match your budget to the right product tier rather than steering you toward a single upsell line. Foster City roofs face bay-side moisture and salt exposure; we plan flashing and ventilation details around that. If your project involves high roof slopes, we bring in trained height-work crews rather than asking anyone to improvise – roof work is genuinely dangerous, and we treat it that way.
Do you handle windows and doors?
Yes, we replace and install windows and entry doors as part of interior and exterior renovation projects. We source windows and exterior doors through professional-grade lines and install Therma-Tru doors for entry, patio, and side-door replacements. Windows should be sequenced with siding and trim work, which is why having one contractor on the whole exterior envelope matters – you don’t end up with siding that doesn’t meet the window frames. Browse more of what we offer on our home page.
Do you build ADUs and install prefab units?
Yes, we’re one of the few general contractors in the region versed in both stick-built ADUs and modern prefab solutions, sourcing from Abodu, Dvele, Mighty Buildings, Boxabl, and Plant Prefab. Foster City properties often work well for ADUs – the lots are generous and the bay-side lot configurations offer usable backyard space – but each is different, so we check setbacks, utility access, and city ADU rules before pricing. Expect a range of $150,000 to $350,000+ depending on size, finish level, and whether prefab or site-built.
Do you do hardscape and exterior work?
Yes, hardscape and exterior work is handled in-house, not subbed to a landscaper. We install Belgard, Unilock, Tremron, Cambridge, and Techo-Bloc pavers for patios, driveways, and walkways, along with fencing, siding (James Hardie), and full roof replacements. Keeping those scopes with the same team means exterior projects finish faster and don’t leave a coordination gap between trades.
Do you accept credit cards, checks, or financing?
We accept common payment methods, including checks and electronic transfers, and can walk you through payment terms during the estimate process. For larger projects, payment schedules are tied to project milestones rather than lump sums, which helps with cash flow. If you’re considering financing for a large remodel or ADU, ask during the walkthrough and we’ll explain what’s available.
What areas do you serve?
We serve Foster City and the surrounding Peninsula communities, working on projects inside and outside the home. Foster City itself is our home base, and the mix of bay-side subdivisions, mid-century tract homes, and newer ADU builds is our daily work. If you’re outside the immediate area, call (877) 752-3868 and we’ll confirm whether your address falls within our service radius before scheduling.
What does “one contractor, every system” actually mean?
It means a single point of accountability for projects that span multiple trades. If your renovation needs new cabinetry, new windows, a re-roof, and new hardscape, you get one contract, one project manager, one schedule, and one call when something goes sideways. Materials come from a curated roster of 50+ manufacturers across every category we touch – so you’re choosing products, not contractors.
Have a question we didn’t cover? Call Ashford Contractors at (877) 752-3868.