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GAF Construction in Las Lomas, CA | Milpitas Construction
We provide independent GAF roofing service across Las Lomas, from full Timberline HDZ re-roofs to targeted leak repairs on older ranch homes. What makes GAF work different here comes down to one thing: Las Lomas is unincorporated GAF in Pajaro Valley ground, so every roof we touch runs through Monterey County permitting, not a city building department. That changes how tear-offs get staged, how drainage gets reviewed, and how fast a project can move. Call us at (877) 752-4194 for a free estimate.
Why Las Lomas Residents Choose Us for GAF Service
Ken Stafford, owner at Milpitas Construction, grew up near the Milpitas BART station back when that corridor was mostly warehouse lots and family-owned shops. That same hands-on, neighborhood-level way of working is how we approach every GAF roof in Las Lomas. We’ve torn off, repaired, and replaced GAF systems across the Pajaro Valley, including GAF service in Watsonville, long enough to know which failure modes show up on foggy north slopes versus sun-baked south exposures.
We’re an independent crew. Not GAF-authorized, not factory-sponsored. Our credibility comes from installations that pass Monterey County inspection and roofs that stay dry through wet winters. We spec genuine GAF components: underlayments, starter strips, ridge and hip products. Mixing aftermarket accessories with a GAF shingle system is where warranty disputes and premature failures start, and we’re not interested in either.
When you work with us, you get one point of contact from first tear-off to final inspection. The same crew that handles your GAF roof can also manage windows, siding, fencing, or a kitchen remodel under one contract. That’s the difference between a roofing subcontractor and a full-scope general contractor.
Styles & brands we work with







Common GAF Construction Problems We Solve in Las Lomas
- Algae streaking and granule loss on north-facing slopes. Foggy Pajaro Valley summers keep roof decks damp longer than inland roofs. We regularly find GAF shingles on north exposures showing granule loss and streaking years before the field shingles look worn. The fix is usually a targeted replacement with proper ventilation, not a full tear-off.
- Skip-sheathing and thin original decking under old GAF layers. Older ranch and farmworker-era homes in Las Lomas often have original decking that’s too thin or spaced too wide for a modern Timberline HDZ course. A tear-off exposes nailing that won’t hold, and re-decking becomes part of the job. We catch this on the estimate, not after the shingles are off.
- Rotted shingle edges and drip flashings from splashback. On rural parcels near the Pajaro River and its sloughs, winter runoff soaks the low eave and fascia. GAF shingle edges rot from the bottom up while the field still looks intact. We re-route gutters and replace drip edges so the new system doesn’t repeat the old failure.
- Leaks at shingle-to-low-slope transitions. Floodplain-adjacent additions and patio tie-ins were frequently flashed by hand decades ago. Those junctions are where we find the first leaks after a wet winter. We add GAF Liberty or EverGuard on low-slope sections instead of forcing shingles onto a flat area.
- Multiple layers of old GAF shingles hiding deck damage. Many Las Lomas homes have two or three layers of shingles from previous owners who roofed over instead of tearing off. The weight hides cupped decking and failed flashing until the roof starts leaking in multiple spots.
GAF Service in Las Lomas: What Local Conditions Mean for Your Equipment
Because Las Lomas is unincorporated Pajaro Valley ground rather than a city, every GAF re-roof here is permitted through Monterey County. On parcels near the Pajaro River and its sloughs, the county’s floodplain and ag-buffer review can shape roof staging, drainage discharge, and even how tear-off debris leaves the property before we load a single bundle. That’s not bureaucratic detail. It’s the difference between a permit that clears in two weeks and one that stalls for two months because the drainage plan didn’t account for floodplain elevation.
Housing here reflects the same reality. Las Lomas is a mix of older single-story ranch homes, scattered rural parcels, and newer infill on small lots along the valley floor. Much of the work we do is additions, ADUs, and repairs to aging rural structures rather than large tract construction. On a ranch-era single-story home off Las Lomas Drive, our crew tore off three weathered layers of GAF shingles and found the original skip-sheathing had cupped where fog-season moisture had worked in for decades. Nothing would nail down clean. We re-decked the roof, installed a GAF Timberline HDZ system with new underlayment and ridge venting, and re-routed the low-eave gutter so winter runoff stopped soaking the fascia. The previous owner had patched that roof twice. It leaked again each rainy season until the decking and drainage got fixed together.
GAF Models & Products We Service in Las Lomas
We work with the full GAF roofing lineup that makes sense for GAF service in Corralitos and Pajaro Valley homes. GAF Timberline HDZ is our go-to architectural shingle for most Las Lomas re-roofs: it nails down clean on new decking and holds up to coastal moisture better than three-tab. For owners who want a heavier, premium look, we install Timberline UHDZ with the same full underlayment and ventilation system. On flat or low-slope porch and addition tie-ins, we use GAF Liberty self-adhering rolled roofing or GAF EverGuard TPO membrane rather than forcing shingles onto a section they were never designed for.
We keep genuine GAF underlayments, starter strips, and ridge products in our local supply rotation, so Las Lomas projects don’t stall waiting on accessories. The OEM-versus-aftermarket distinction matters: GAF warranties and performance both depend on a matched system, and we don’t cut that corner to save a few dollars on materials.
See the difference
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AfterGAF Service Pricing in Las Lomas
Roof work pricing in Las Lomas follows the same ranges we quote across the Pajaro Valley, with one local variable: homes near the river and sloughs sometimes need additional drainage or re-decking scope that county review brings to light. That’s not a surprise fee. It’s the reason we walk the roof and check the decking before we hand you a number.
| Service | Price Range |
|---|---|
| Roof Repair | $400 – $1800 |
| Roof Replacement | $8000 – $20000 |
| Metal Roof Installation | $15000 – $40000 |
| Tile Roof Repair | $600 – $2500 |
A free estimate includes a full roof walk, decking inspection where accessible, and a written line-item quote so you know exactly what’s included. Call (877) 752-4194 to schedule yours.
Serving Las Lomas, CA — Our Local Coverage Area
We’re based in the Las Lomas 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 – GAF Construction in Las Lomas
Yes, but not from a city. Las Lomas is unincorporated Monterey County ground, so every GAF re-roof is permitted through Monterey County’s building division. We handle the permit package, including the floodplain and drainage review that applies to parcels near the Pajaro River and its sloughs. Call (877) 752-4194 if you want us to check what your specific parcel requires.
Winter runoff and splashback soak the low eave on homes near the river and sloughs, and foggy summers keep that moisture in the wood longer than on inland roofs. GAF shingle edges and drip flashings rot from the bottom up while the field still looks fine. The fix is correcting drainage at the gutter level, not just swapping shingles. Call (877) 752-4194 for a roof walk before the next rainy season.
Sometimes, but rarely on Las Lomas homes. Many ranch-era houses here have skip-sheathing or thin original decking under decades-old GAF layers. Roofing over hides cupped decking and failed flashing until the roof leaks in multiple spots. We tell owners honestly when a tear-off and re-deck is the right call, and we don’t sell a new roof just to sell one. A free estimate answers this for your specific roof.
We don’t force shingles onto flat sections. We use GAF Liberty self-adhering rolled roofing or GAF EverGuard TPO membrane on low-slope tie-ins, then flash the transition to the shingle system properly. Those junctions are where hand-flashed additions from decades ago leak first after a wet winter. Call (877) 752-4194 to have us look at your tie-ins.
When the field shingles are intact and the failure is localized at a valley, flashing, ridge, or low eave. On a 20-year-old Timberline roof with solid field shingles, a targeted repair with genuine GAF components often makes more sense than a tear-off. We’ll tell you straight which one your roof needs. Estimates are free at (877) 752-4194.
Service Areas Near Las Lomas
We provide GAF service across the Pajaro Valley and surrounding areas. That includes GAF service in Elkhorn, GAF service in Tiburon, and nearby communities like Marin City, San Juan Bautista, Castroville, Prunedale, and the Silver Lakes and Piñon Hills areas. If you’re within driving distance of Las Lomas, we’ll make the trip.
Book Your GAF Service in Las Lomas Today
If your GAF roof is showing granule loss, edge rot, or leaks at the tie-ins, don’t wait for the next wet winter to find out how bad it is. Call (877) 752-4194 to schedule a free estimate. We’ll walk the roof, check the decking, and give you a written line-item quote with no surprises.
Written by Ken Stafford, Owner at Milpitas Construction, serving Las Lomas, GAF in Amesti, and the Pajaro Valley. Build it right the first time – the Bay Area doesn’t give you a free pass on shortcuts.
Learn more about our GAF sales & service and our Las Lomas service area.