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
GAF Construction in Los Altos Hills, CA | Brookside Contractors
We’re Brookside Contractors, and we install and service GAF roof systems across Los Altos Hills, from full tear-offs on steep custom homes to re-flashing jobs that stop leaks other crews chase for years. The thing that makes GAF work different here isn’t the shingle, it’s what surrounds it: heritage oaks, one-acre lots, clay slopes, and 1960s-era construction that fights you at every transition. If your GAF roof is leaking, losing granules, or lifting at the ridge, call (833) 725-3508 and we’ll put eyes on it.
Why Los Altos Hills Residents Choose Us for GAF Service
We work in GAF’s shingle, low-slope, and component families every week. Timberline HDZ, UHDZ, EverGuard TPO, Pro-Start starter strips, Seal-A-Ridge caps. That matters because most roof failures in Los Altos Hills don’t start in the shingle field. They start at the flashing, the transitions, the decking under a low-slope section, or the ridge where hilltop wind loads triple what a valley home sees. Nate Burrell, our owner and General Contractor in Los Altos Hills, trained in construction technology at Gavilan College and spent two decades on job sites across South Santa Clara County before building Brookside. He’s the one who reads the plans, checks the fastening pattern, and tells you honestly whether a repair holds or you’re throwing money at a roof that’s done. That’s the kind of straight answer Los Altos Hills homeowners expect, and it’s exactly what we deliver.
We’re an independent GAF service provider. No manufacturer affiliation, no authorized-dealer badge, and no one telling us which accessories we have to push. That independence means we recommend what the roof actually needs. When a GAF assembly calls for GAF’s own starter strips and ridge caps, we install them because mixed-brand accessories are the fastest way to void a coverage argument. When a roof is sound except for one failed transition, we repair and re-flash. When decking, flashing, or the shingle field is failing across multiple planes, we tell you replacement is the honest call. One contractor, every phase.
Styles & brands we work with
Common GAF Construction Problems We Solve in Los Altos Hills
- Wind-lifted or creased shingle tabs on exposed ridgelines. Hilltop wind loads in Los Altos Hills run significantly higher than the valley floor, and the ridge and hip are where it shows first. Timberline HDZ shingles are rated for high wind, but only if the fastening pattern is right. We’ve seen roofs where every tab was intact but half the ridge cap was lifting because someone skipped nails. That’s a repair, not a re-roof, but only if caught early.
- Granule loss and premature aging on south- and west-facing planes. Los Altos Hills sits in the rain shadow of the Santa Cruz Mountains, which means long, hot afternoon sun on those exposures. Shingles lose granules faster there than anywhere else on the roof. If your south-facing plane looks bald while the north face still looks new, you’re seeing uneven aging. We can replace the affected plane with matched Timberline and get years back.
- Leaks at multi-level wall and glass-wall transitions. The 1960s through 1980s custom homes in Los Altos Hills were built with expansive glass and walls that step down with the terrain. The leak isn’t in the shingle field. It’s in the step and counter-flashing where the roof meets those walls. We trace the water, rebuild the flashing, and leave the shingle field alone when it’s still serviceable.
- Deck deterioration under low-slope GAF membrane sections. Many of these hillside homes have flat or low-pitch sections that meet steep shingle planes without proper transition detailing. Water ponds, the membrane traps moisture, and the deck rots from underneath. EverGuard TPO is a good membrane, but only on a dry, sound deck with proper slope. We rebuild those transitions with new underlayment, a cricket where needed, and correct flashing detail.
- Leaks around chimneys, skylights, and roof penetrations. These are the classic water entry points on any roof, but on Los Altos Hills homes with complex rooflines, they multiply. We re-flash penetrations and replace damaged Seal-A-Ridge caps as part of a repair, not as a separate upsell.
GAF Service in Los Altos Hills: What Local Conditions Mean for Your Equipment
Los Altos Hills mandates minimum one-acre lots and enforces a strict 5,000 sq ft maximum footprint, with exceptions, so nearly every construction project here is a custom hillside home or a major remodel requiring extensive geological, drainage, and tree-preservation review before a permit is issued. For a GAF reroof, that means the roof plane, staging area, and even where a dumpster can sit are often dictated by protected-tree root zones before a single shingle is ordered. The town’s Heritage Tree Ordinance protects native oaks and redwoods and requires arborist reports and protective canopies for any heritage tree within 50 feet of a construction footprint. We’ve sequenced tear-off around a heritage oak canopy on a multi-level 1970s custom home off Elena Road. Our crew traced winter ceiling stains to failed step flashing where a low-slope section met a steep shingle plane, not to the Timberline field. We rebuilt the transition with new underlayment, GAF ridge and starter components, and a proper cricket, and no equipment entered the root zone during the re-roof. Winter storms dump intense rainfall on steep, clay-rich hillsides here, so drainage, retaining walls, and erosion control are part of the roof conversation too. A roof that sheds water into a saturated clay slope without proper drainage is a problem waiting for the next big storm. That’s what we mean by scoping the roof, not just the shingles.
GAF Models & Products We Service in Los Altos Hills
We install and repair the full line of GAF roofing systems. Timberline HDZ and HDZ UL shingles are the workhorse for steep Los Altos Hills pitches, with Timberline UHDZ as the upgrade option when homeowners want deeper shadow lines and a heavier look on a large custom home. For low-slope sections, we install EverGuard TPO single-ply membrane, and we pair it with Pro-Start starter strips and Seal-A-Ridge ridge caps wherever the assembly calls for them. We stock common GAF accessories locally for fast turnaround on repairs, so a flashing or ridge cap job doesn’t wait on a special order. When it comes to GAF sales & service, we match the material to the project, not the other way around.
See the difference
Before
After
Before
After
Before
AfterGAF Service Pricing in Los Altos Hills
Here’s what GAF construction work typically runs in the Los Altos Hills market. These are honest ranges, not bait numbers.
| Service | Typical Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Metal Roof Installation | $15,000 – $40,000 |
| Tile Roof Repair | $600 – $2,500 |
What drives the cost in Los Altos Hills? Access, slope, and tree protection. A steep lot with limited staging and a heritage oak within the root zone adds labor and time. A simple ranch-style roof with good access stays on the lower end. What does a free estimate include? A full roof inspection, a written line-item quote, and a straight answer on repair versus replace. Call (833) 725-3508 to schedule yours.
Serving Los Altos Hills, CA — Our Local Coverage Area
We’re based in the Los Altos Hills area and also provide GAF service in Los Altos, so we know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – GAF Construction in Los Altos Hills
For most steep Los Altos Hills lots—and similar conditions for GAF in Mountain View—a properly fastened GAF Timberline HDZ or UHDZ shingle roof is entirely appropriate, with two caveats. First, the fastening pattern on ridges and hips has to be right for hilltop wind loads. Second, if the roof has low-slope sections or extensive transitions to walls and glass, the flashing and underlayment details matter more than the shingle choice. We install both shingle and metal, so the recommendation depends on your specific pitch, exposure, and budget. Call (833) 725-3508 for an exact assessment.
No. We’re an independent GAF service provider. We install GAF roof systems and use GAF’s own accessory components because we believe in the product line and because mixing accessory brands creates coverage disputes. But we’re not manufacturer-affiliated, and that independence means our recommendation is based on your roof, not a dealer agreement.
Yes. We install GAF Pro-Start starter strips, Seal-A-Ridge ridge caps, and GAF underlayments wherever the assembly calls for them. On a repair, if the existing field is Timberline, we match it with the same product line. Aftermarket accessories that look close enough are the most common reason manufacturers deny coverage. We don’t cut that corner.
A straightforward reroof on an accessible Los Altos Hills home, like those we handle with GAF service in Loyola, typically runs one to two weeks. Add time if there’s a heritage oak requiring an arborist protection plan, if staging is tight, or if we find deck damage that needs replacement. Tree protection and steep-slope access are the two biggest schedule variables in this town. We’ll give you a realistic timeline in the written estimate, not a promise we can’t keep.
Most GAF roof repairs in Los Altos Hills run between $400 and $1,800, depending on what’s failed. A simple ridge cap replacement is on the low end. Re-flashing a multi-level wall transition is on the higher end. If the leak has been going on long enough to damage decking, you’re looking at a larger scope. Call (833) 725-3508 and we’ll give you an exact quote. Estimates are free.
Service Areas Near Los Altos Hills
While we focus on Los Altos Hills and the surrounding hillside communities, we also serve Morgan Hill, San Martin, Gilroy, and the broader South Santa Clara County area. We’re familiar with the terrain, the permit offices, and the tree ordinances across the region. For GAF work in neighboring communities, see GAF service in Palo Alto and GAF service in Stanford. For our full coverage map, visit our Los Altos Hills service area page.
Book Your GAF Service in Los Altos Hills Today
If your GAF roof is leaking, lifting, or losing granules, don’t wait for the next winter storm to make it worse. Call (833) 725-3508 to schedule a free estimate. We’ll inspect the roof, explain exactly what we found, and give you a written quote with no pressure and no games. Do it once, do it right – everything else is just a future repair bill.
Written by Nate Burrell, Owner at Brookside Contractors, serving Los Altos Hills and the surrounding South Bay hillsides.