Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roofing Company Across Half Moon Bay
Roofing work in Half Moon Bay costs between $450 and $1,200 for most repairs and $18,000 to $42,000 for a full replacement on a typical coastal home, and the number you get depends heavily on what’s under the shingles, not just what’s on top. Brennan Roofing serves Half Moon Bay with written pricing before any work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise in writing on every job. Call (361) 320-9467 and a live person answers, 24/7. No voicemail, no callback queue. We know this town’s fog line, its storm patterns, and exactly what salt air does to a roof over 20 years.
Key Takeaways:
- Repairs in Half Moon Bay typically run $450 – $1,200; full replacements run $18,000 – $42,000 depending on decking, flashing, and material choices.
- Roofs west of Highway 1 corrode fasteners and flashing faster than homes just a mile inland. Stainless or copper nails and ice-and-water shield at eaves are standard practice on the coastal side.
- Every Brennan Roofing job gets a written price before work starts, a one-year written guarantee, and a free return visit if anything fails within 365 days.
- Materials come from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. We stock local parts for Half Moon Bay jobs and explain every option in plain English.
Why Brennan Roofing Is Half Moon Bay’s Preferred Roofing Company
Half Moon Bay homeowners call us because we show up when we say we will, the price goes on paper before any work begins, and the crew on your roof is background-checked and in uniform. You know exactly who is on your property. Travis Oakley leads the team under The Garrison Standard: written price first, disciplined work, and a one-year written guarantee on every repair and installation. That standard does not change whether we are replacing three tabs on a ranch in Alsace Lorraine or tearing off a corroded standing-seam on a coastal bluff west of Highway 1.
What does that look like in practice? The price on your estimate is the price on your invoice. If a repair fails within 365 days, we come back at no charge and fix it. That is in writing, not a verbal promise. Phones are answered by a live person around the clock. When a winter atmospheric-river storm rips flashing loose at midnight, you get a human voice, not a recording. We coordinate dispatch from the San Francisco Bay Area office, and crews serve Half Moon Bay locally with parts and materials sourced from GAF, CertainTeed, and Boral, among others.
Roof Coating in Half Moon Bay
Roof coating in Half Moon Bay typically runs $2,500 to $6,500 for a full application on a low-pitch or flat roof, and it is a common choice for coastal homes fighting moisture intrusion rather than shingle failure. The marine layer keeps roofs damp even in summer, and a properly applied coating seals small cracks, restores reflectivity, and buys years on an aging low-slope roof without a full tear-off. Brennan Roofing applies coatings from manufacturer lines including GAF and Boral, and every coating job starts with a written price in hand.
When Coating Makes Sense
A coating is not a substitute for failed decking or rotted framing. It works when the roof structure is sound and the membrane is aged but intact. On Half Moon Bay flat and low-pitch roofs, we see coating as a five-to-ten-year strategy, not a permanent fix. If the decking is soft or the seams are split, a coating will not save it, and we will tell you that plainly before quoting.
What We Prep First
Salt fog leaves a fine crust on roof surfaces along the coast. We wash, repair any split seams, prime where necessary, and then apply the coating in even passes. Skipping the prep is why coatings fail early here. The fog drip on north slopes keeps surfaces damp, so we schedule coating work for the dry season and document every step in writing.
Free Roof Estimate in Half Moon Bay
A free roof estimate in Half Moon Bay from Brennan Roofing means a technician climbs the roof, inspects the decking, flashing, underlayment, and drip edge, and hands you a written line-item price before any work is discussed. Every estimate includes specific dollar amounts: what the materials cost, what the labor costs, what the disposal costs, and what, if anything, is an allowance for work we cannot fully see until the roof is opened. Call (361) 320-9467 to schedule yours. No charge, no obligation, and the price does not move at the door.
What the Estimate Covers
We measure the roof, check the decking from the attic where possible, inspect flashings at chimneys, skylights, and valleys, and note the condition of the existing underlayment. On older Half Moon Bay homes, the estimate includes a written allowance for potential decking replacement, because we know what opening up a mid-century roof in this town typically reveals.
Why Written Prices Matter Here
Half Moon Bay’s fog line means two homes a block apart can have very different roof conditions. A house on the ocean side of Highway 1 may have corroded flashing while a home a mile inland in the hills is fine. A written estimate locks the scope and the price for both, with any surprise priced and approved in writing before we touch it.
Trusted Brands We Service in Half Moon Bay
Brennan Roofing installs and services materials from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. We stock local parts for Half Moon Bay customers and explain the trade-offs in plain English: GAF architectural shingles for wind-driven rain performance, Boral tile for coastal durability, Atlas for low-slope applications. You choose with confidence because you understand what you are buying and why it suits this climate. If a manufacturer has a known issue with salt-air corrosion or fog-belt moisture, we tell you before you spend a dollar.
Common Roofing Company Problems We See in Half Moon Bay Homes
- Corroded galvanized flashing and fasteners. West of Highway 1 and in El Granada, salt fog eats galvanized metal years faster than inland. We routinely find step flashing at chimneys corroded to lace, and the fix is copper flashing with stainless nails.
- Soft decking at north valleys and eaves. Fog drip keeps north slopes damp, and moss takes hold. By the time the shingles look worn, the 1×6 decking underneath is often soft and needs replacement, not just re-covering.
- Wind-driven rain intrusion at chimneys and vents. Winter southerly storms push rain sideways into flashings on ocean-facing homes. Standard flashing details fail here; coastal-side homes need extra ice-and-water-style membrane at eaves and valleys.
- Third-layer tear-offs with hidden framing damage. On mid-century ranch homes in tracts like Alsace Lorraine, we regularly find two or three layers of old shingles hiding rotted decking and outdated waterproofing nobody priced. The estimate allowance is how we handle it without a cost surprise at the door.
Pricing for Roofing Company in Half Moon Bay, CA
A typical roof repair in Half Moon Bay runs $450 to $1,200. Full replacements run $18,000 to $42,000 on most coastal homes, with metal roofing and tile at the upper end. Roof coating on flat or low-pitch roofs runs $2,500 to $6,500. What moves the number? Decking condition, the number of layers being torn off, flashing replacement, and whether your home sits west of Highway 1 where corrosion work is heavier. Every Brennan Roofing quote is a written line-item price before work starts. Call (361) 320-9467 for a free estimate and we will walk you through every dollar.
We Also Serve Cities Near Half Moon Bay
Brennan Roofing serves Half Moon Bay and the surrounding coast, including Roofing Company work in El Granada, Burlingame, Millbrae, and Belmont. If you are on the coast or just inland, our crews know the fog line and the storm patterns that come with it. Roofing Company in Half Moon Bay means a local crew, a written price, and a live person on the phone when you call.
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 Roofing Company in Half Moon Bay
Because Half Moon Bay sits in a marine fog belt with salt-laden air that corrodes galvanized fasteners years faster than inland San Mateo. West of Highway 1 and in El Granada, galvanized nails and flashing lose their zinc coating within a decade, then the steel underneath rusts and fails. We default to stainless or copper nails on the coastal side because the roof has to survive constant salt exposure, not just rain. Call (361) 320-9467 for a free estimate, and we will show you exactly what we found on your roof.
On mid-century ranches in tracts like Alsace Lorraine, we typically find multiple layers of old shingles hiding rotted decking, corroded step flashing at chimneys, and failed waterproofing at valleys and eaves. The fog drip keeps north slopes damp, so decking there is often soft. That is why we write an allowance for decking replacement into every estimate before work starts, and any surprise gets priced and approved in writing before we touch it. Call (361) 320-9467 to get a written estimate on your roof.
The fix is copper step flashing with stainless nails and ice-and-water-style membrane at the eaves and valleys, detailed so southerly winter storm winds cannot push rain sideways into the flashing. Standard galvanized flashing details fail on ocean-facing homes because the salt fog corrodes them and the wind-driven rain finds every gap. We price the upgrade in writing before any work starts. Call (361) 320-9467 for a free estimate on the chimney flashing and membrane work.
The green is moss and algae feeding on fog drip, which keeps the north slope damp for months at a time. The north side of a Half Moon Bay roof rarely gets direct sun, so moisture never burns off the way it does on the south slope. Over time, that moss holds water against the shingles and softens the decking underneath. We remove the growth, inspect the decking, and recommend ventilation or zinc strips if the slope is prone to repeat growth. Call (361) 320-9467 and we will take a look at your north slope.
A typical Half Moon Bay ranch home is 22 to 28 squares, meaning 2,200 to 2,800 square feet of roof surface. Two-story coastal custom homes run 35 to 50 squares. It matters because roofers quote by the square, and if one bid assumes 22 squares and another 28, the prices are not comparable. We measure your roof precisely and write the square count on the estimate, along with the price per square. Call (361) 320-9467 for a free estimate with the actual numbers on paper.
Call Brennan Roofing in Half Moon Bay for Your Free Estimate
The sooner you know what is on your roof and under it, the sooner you can decide with numbers in hand. Brennan Roofing serves Half Moon Bay with written pricing before any work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise in writing on every job. Call (361) 320-9467 and a live person answers, 24/7. We will schedule your free roof estimate, inspect the decking, flashing, underlayment, and drip edge, and hand you a written line-item price before any work begins.
Written by Travis Oakley, Owner at Brennan Roofing, serving Half Moon Bay, CA.