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
Fast, Reliable General Contractor Across Half Moon Bay
Hiring a General Contractor in Half Moon Bay means finding someone who understands two permitting worlds: San Mateo County and the California Coastal Commission. That’s the reality of building on the coastside, and it’s why our team scopes every project differently here than we do inland. We know the review timelines, the salt-air material requirements, and how grading on open acreage changes a budget before the first permit is pulled. Call (877) 752-3868 to talk through your project with someone who works in Half Moon Bay regularly.

Why Ashford Contractors Is Half Moon Bay’s Preferred General Contractor Company
Half Moon Bay homeowners tend to ask the same first question: have you actually built out here? The answer is yes. We know the difference between a coastal development permit and a county building permit, and we know which one triggers which deadline. That matters when you’re six months into a remodel and the Coastal Commission has a design review question about your proposed roofline. We prepare for those questions before submission, not after.
The homes here run from 1950s ranch houses on flat streets to custom estates on ridgelines and working parcels off Purisima Creek Road. We’ve worked on all three. Each comes with its own set of code triggers, septic setbacks, and moisture patterns. Our customers in Half Moon Bay consistently tell us the difference is that we bring up permitting, corrosion, and drainage in the first conversation rather than discovering them mid-project.
Led by Glen Mossier, our team is built around a single point of contact for the entire scope. One contract, one project manager, and direct communication when something changes. That’s not a sales line. It’s the only sane way to run a project that touches the Coastal Commission, the county, and multiple trades at once.
Styles & brands we work with







Remodeling Contractor in Half Moon Bay
A Remodeling Contractor in Half Moon Bay takes on something inland remodelers rarely deal with: a project where the structure itself is fighting the climate. Salt-laden fog penetrates gaps, corrodes standard fasteners, and finds every weak point in flashing. A kitchen remodel here isn’t just cabinetry and countertops. It’s checking what the fog has done to the framing behind the old sink window before you install KraftMaid cabinetry or a Cambria countertop.
Interior Remodels With Coastal Moisture In Mind
When we remodel a kitchen or bathroom in Half Moon Bay, we start by assessing the building envelope rather than just the floor plan. Older coastal cottages often have hidden moisture intrusion around window openings and rim joists. We address that before finish work begins, so your new kitchen isn’t installed over a water issue that shows up two winters later.
Full-Scope Renovations From Roofline To Foundation
Many Half Moon Bay remodels become full-scope once we open walls and find what the marine air has done. Rather than patching, we coordinate the entire fix: framing repair, new sheathing, corrosion-resistant flashing, and proper ventilation before cabinetry and tile go in. It’s the same crew, the same schedule, and one accountable party for the result.
Licensed General Contractor in Half Moon Bay
Working with a Licensed General Contractor in Half Moon Bay means hiring someone who can carry the project through both the county permit and the coastal development permit, then build it with materials that survive this specific climate. We hold the state license and take on the liability of scheduling, inspections, and code compliance. You don’t chase submittals. We do.
Permit Coordination For Coastal Properties
Half Moon Bay projects often need two approvals: San Mateo County building permits and California Coastal Commission review. The commission looks at view corridors, height limits, and setbacks in ways that inland codes don’t. We prepare drawings and specs with those constraints already addressed, which shortens the review cycle compared to submitting just county-standard plans and waiting for the commission’s objections.
Acreage And Outbuilding Scopes
Many properties in Half Moon Bay sit on open acreage where the project isn’t just a house. Detached ADUs, shops, equipment storage, and replacement of failing decks on slopes all fall under the same general contract. We scope lot drainage, septic setbacks, and equipment access before we quote, because those costs hit early and hard on rural parcels. A garage conversion or ADU on acreage in Half Moon Bay runs $30,000 to $220,000 depending on the site work involved.

Trusted Brands We Service in Half Moon Bay
We source materials from over 50 name-brand manufacturers so you’re choosing components, not whatever a single supplier has in stock. On the fencing and exterior side for Half Moon Bay, we regularly install Barrette, Master Halco, Ameristar, and Jerith product lines. Each has different corrosion-resistance profiles, and we specify accordingly given the salt air here. Your project gets the right product for a coastal climate, not the right product for our inventory. We coordinate material delivery to Half Moon Bay in advance, so site storage and weather protection are part of the plan, not an afterthought.
See the difference
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After
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After
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AfterCommon General Contractor Problems We See in Half Moon Bay Homes
- Corroded deck hardware and flashing. Standard galvanized fasteners fail within years in fog and salt air. We routinely find ledger bolts so rusted they no longer hold weight, and that’s a structural hazard, not a cosmetic one.
- Permitting stalls mid-project. Homeowners start with only the county permit, then hit Coastal Commission requirements after cabinets are ordered. The commission review is not a rubber stamp, and the timeline should be built into the schedule from day one.
- Poor drainage on sloped lots. Half Moon Bay acreage slopes toward creek drainages, and winter storms move water fast. Without proper grading and drainage scoped before construction, water finds the foundation or septic field.
- Moisture intrusion in older coastal cottages. Fog-driven moisture penetrates older wall assemblies, especially around windows and unsealed rim joists. Repainting hides it. We open, repair, and detail it properly.
Pricing for General Contractor in Half Moon Bay, CA
Here’s what we actually quote for common scopes in Half Moon Bay. These are market ranges for this specific city, built from recent projects and current material costs:
| Project Scope | Typical Range in Half Moon Bay |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
What moves the number on acreage properties is site work: grading, drainage, retaining walls, septic setbacks, and access for equipment. A flat city lot addition and a sloped acreage addition can differ by tens of thousands before framing begins. We walk the property, mark out the scope, and give you a written line-item quote. Call (877) 752-3868 to schedule that walkthrough. The estimate is free, and it’s based on your actual lot, not a spreadsheet.
We Also Serve Cities Near Half Moon Bay
In addition to Half Moon Bay, we run projects in El Granada, Moss Beach, Montara, and Hillsborough. Each has its own permitting path and terrain, and we’ve built in all of them. If your property sits near the coast, the same salt-air and drainage rules apply. If you’re inland a bit, the scope simplifies. Either way, call (877) 752-3868 and we’ll tell you what’s realistic.
Serving Half Moon Bay, CA — Our Local Coverage Area
We’re based in the Half Moon Bay 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 Half Moon Bay
Yes, most exterior and structural work in Half Moon Bay requires both a San Mateo County building permit and a California Coastal Commission coastal development permit. The commission reviews design elements like height, setbacks, and view corridors that the county permit doesn’t address. We prepare both submittals together so the review timelines run in parallel rather than back to back. Call (877) 752-3868 for a free estimate and we’ll map out which permits your specific project triggers.
Salt-laden marine air corrodes standard galvanized fasteners and flashing within years, so we specify stainless steel or hot-dipped galvanized hardware, corrosion-resistant flashings, and exterior materials rated for coastal exposure on every Half Moon Bay project. This applies to decks, roofing, fencing, and any structural connection exposed to the fog. The up-front material cost is modest compared to the cost of tearing out failed components later.
ADU construction in Half Moon Bay typically runs $90,000 to $220,000, with acreage parcels landing on the higher end due to grading, drainage, septic setbacks, and equipment access. We partner with prefab manufacturers like Abodu, Dvele, Mighty Buildings, Boxabl, and Plant Prefab when the site allows, which can shorten the build timeline. Call (877) 752-3868 for an exact quote based on your lot.
We write a fixed scope with specific material line items, then use a change order process that requires your written approval before any variation. If a Coastal Commission condition forces a design change, we document the delta in writing with the revised cost and timeline. You approve before we proceed. We don’t bury change orders in the final invoice.
Open acreage in Half Moon Bay slopes toward creeks and drainages, and winter storms move water rapidly through those slopes. If grading and drainage aren’t scoped before construction, water runs toward the foundation, undercuts retaining walls, or saturates the septic field. We design site drainage into the project plan from the start, and call (877) 752-3868 to schedule a free lot walkthrough.
Written by Glen Mossier, Owner at Ashford Contractors, serving Half Moon Bay and the greater Peninsula.