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 Lompico, CA | Daly City Construction
We provide independent GAF roofing installation and repair across Lompico as a General Contractor in Lompico, and the one thing that makes our work here different is that we plan every job around steep private drives and redwood-shaded lots that most roofing crews never see. Since Lompico sits in a canyon off Highway 9 with narrow unpaved access on many properties, we stage materials differently, schedule around drainage, and build roof systems that hold up to heavy winter rain and persistent moisture under the canopy. If you need GAF shingles, underlayment, or a full roof replacement in Lompico, call (866) 505-5254 for a free estimate.

Why Lompico Residents Choose Us for GAF Service
We’ve torn off and rebuilt GAF roofing systems on enough Lompico cabins to know exactly how Timberline shingles behave under redwood shade and canyon humidity. North-facing slopes here stay damp long after the rain stops, and that changes how we think about ventilation, underlayment, and flashing. Noel Cabrera, our owner, grew up in Daly City’s Westlake district watching the same fog and moisture problems eat at postwar tract homes, so when he sees a moss-covered GAF roof in Lompico or on a Mount Hermon GAF service call, he already knows what’s happening underneath. We’re an independent contractor, not a GAF-authorized dealer. We install their materials because they’ve earned their place on steep, wet, mountain lots, not because a manufacturer told us to.
Our GAF sales & service work follows one rule: use GAF’s system components where they make a complete roof, and use better materials where they exist. We keep our Lompico response times short because we know a small flashing leak under a redwood canopy becomes a ceiling stain fast. Estimates are free, and we’ll walk the roof with you before we quote anything.
Styles & brands we work with







Common GAF Construction Problems We Solve in Lompico
Here’s what GAF roofs actually do when they fail in this canyon, based on what we’ve repaired on homes throughout Lompico:
- Moss and algae streaking on north-facing Timberline HDZ slopes. Redwood shade keeps shingles damp for weeks after storms, and that moisture feeds moss growth that lifts shingle edges and traps water. We see this constantly on Lompico lots where the canopy blocks direct sun for most of the day.
- WeatherWatch and Deck-Armor underlayment wrinkling at low-slope transitions. Porch roofs and patio overhangs on older Lompico cabins often sit at pitches below what GAF’s underlayment handles well. High canyon humidity plus poor attic ventilation makes the membrane buckle and hold condensation.
- Pipe boot and step flashing failures on mid-century cabins. Older GAF roofs here rarely fail in the shingle field first. They fail where aging pipe boots crack, where step flashing pulls away from siding, and where redwood needles dam water at roof-to-wall transitions and valleys.
- High-nailed shingles lifting on steep pitches after winter storms. We’ve found nails driven above the nail line on Lompico roofs where homeowner repairs or rushed handyman work left shingles barely attached. Wind uplift hits those slopes hard in January and February, and the leak reads as a ceiling stain inside, not as visible shingle damage outside.
- Ceiling staining that traces back to underlayment, not shingles. This is the one that confuses people. The shingles look fine, but water is getting through at a valley or transition where the underlayment was torn or never properly lapped. On Lompico’s low-slope additions, that’s usually the culprit.
GAF Service in Lompico: What Local Conditions Mean for Your Equipment
Here’s a fact about Lompico that changes how GAF roofing work gets done here, and it’s not something you’d find in a generic roofing article. Many of the private, unpaved drives off Lompico’s canyon roads wash out during winter storms, and a standard delivery truck carrying pallets of shingles simply can’t make it up to the house. So we stage GAF roof drops with smaller trucks, hand-carry bundles to the build site, and plan shingle loads around how much we can safely stack on decking without overloading it. That’s not true in Boulder Creek, GAF service in Felton, or Ben Lomond where most lots have paved county road frontage and standard delivery access. In Lompico, the site access problem comes before the roof problem, and if you don’t plan for it, you end up with materials stacked in somebody’s driveway for a week while the unpaved road ruts out underneath the delivery truck. We plan every GAF roof in Lompico around driveway access, drainage, and bundle staging before a single shingle gets loaded.
GAF Models & Products We Service in Lompico
We install and repair the full GAF residential system on Lompico homes: Timberline HDZ architectural shingles for standard re-roofs, Timberline UHDZ for homeowners who want the thicker, higher-end architectural look, WeatherWatch ice-and-water barrier for eaves, valleys, and low-slope transitions, and Deck-Armor roof deck protection for the dried-in base layer. We pair those with GAF ridge cap and starter strips so the system performs as a system. When a repair calls for a part GAF doesn’t make or doesn’t make well for this climate, we use quality aftermarket pipe boots and flashing, which often outperform the original on older Lompico cabins. We don’t stock full pallets in Lompico itself because there’s no warehouse space up here, but we pull from local suppliers in Santa Cruz and Los Gatos so turnaround stays short.
See the difference
Before
After
Before
After
Before
AfterGAF Service Pricing in Lompico
What you’ll pay for GAF work in Lompico depends on roof pitch, decking condition, and whether we’re doing a spot repair or a full tear-off with new underlayment. Here are the ranges we work within:
| Service | Typical Range |
|---|---|
| Roof Repair | $400 – $1,800 |
| Roof Replacement & Installation | $8,000 – $20,000 |
| Metal Roof Installation | $15,000 – $40,000 |
| Tile Roof Repair | $600 – $2,500 |
Steep lots and hand-carry access add labor time, which is the honest reason a Lompico roof can land higher than the same roof on a flat Daly City lot. The free estimate includes a roof walk, an inspection of the underlayment and flashing, and a written line-item quote before you commit to anything. Call (866) 505-5254 and we’ll put a number on yours.
Serving Lompico, CA — Our Local Coverage Area
We’re based in the Lompico area and know this community well, and we also offer Brookdale GAF service nearby. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – GAF Construction in Lompico
No. Daly City Construction is an independent general contractor. We install GAF roofing materials because they hold up on steep, wet, redwood-shaded Lompico lots, not because GAF endorses us or pays us. That independence means we recommend the right roof for the house, not the roof that satisfies a manufacturer quota.
We use a mix, and we’ll tell you which before we start. For shingles, ridge cap, starter strips, and underlayment, we use GAF’s own system components so the repair matches the existing roof. For pipe boots and flashing on older Lompico cabins, we’ll often use quality aftermarket parts that hold up better in this canyon climate than the original GAF-supplied flashing that failed. The deciding factor is performance, not brand loyalty.
Most repairs take a day or less once materials are on site. On Lompico properties with steep unpaved drives, the material staging can add a day on the front end because we hand-carry bundles instead of dropping them from a delivery truck. If you need a full re-roof, expect a few days to a week depending on pitch, tear-off depth, and weather windows, which get tight in winter.
We install Timberline HDZ and Timberline UHDZ architectural shingles, plus the complete GAF system components: WeatherWatch ice-and-water barrier, Deck-Armor roof deck protection, and matching GAF ridge and starter accessories. If a different GAF line fits a low-slope or specialty application on your Lompico roof, we’ll bring it up during the estimate.
On some Lompico lots, yes. If your property sits on a steep timbered slope with high fire risk, a standing seam metal roof gives you a non-combustible surface that GAF asphalt shingles can’t match, and it’s worth pricing both. We install metal roofing alongside GAF systems, so we can quote the comparison honestly instead of steering you one way. Call (866) 505-5254 and we’ll walk through the numbers for your specific lot and defensible-space constraints.
Service Areas Near Lompico
We serve Lompico and the surrounding Santa Cruz Mountain communities, including GAF service in Ben Lomond, GAF service in Bonny Doon, Boulder Creek, Felton, and Zayante. If your property sits off Highway 9 or any of the canyon roads, we’ll come take a look.
Book Your GAF Service in Lompico Today
Whether you’ve got a stain spreading across the ceiling or you’re planning a full re-roof before the next winter, call (866) 505-5254 for a free estimate. We’ll walk the roof, check the underlayment and flashing, and give you a line-item quote. Noel’s answer on the roof is always the same: tell me what the house needs, not what you think it needs, then we’ll figure out the right fix.
Written by Noel Cabrera, Owner at Daly City Construction, serving Lompico and the Santa Cruz Mountains.