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CertainTeed Construction in Montclair, CA | Timberline Contractors
We install, repair, and replace CertainTeed roofing and exterior systems across Montclair, CA, and also provide Claremont CertainTeed service. Most of our CertainTeed work here is tear-off and re-roof on 1950s-70s tract homes where narrow lots and low-pitch rear sections create problems newer subdivisions never see. If you’re dealing with granule loss, lifted tabs, or leaks on a CertainTeed roof in Montclair, call us at (866) 253-5808 for a free estimate.
Why Montclair Residents Choose Us for CertainTeed Service
We’ve spent years working on CertainTeed products in the Pomona Valley, and we know how Landmark architectural shingles, Presidential Shake, and DiamondDeck underlayment actually perform on Montclair’s postwar housing stock. Nelson Fung, our owner and General Contractor – Montclair, learned the trade at Los Angeles Trade-Technical College before spending years on remodels and commercial builds across the LA basin. He brings that same materials-first thinking to every roofing decision we make.
We are an independent contractor. We are not authorized, sponsored, or warranty-backed by CertainTeed. What that means for you is simple: we’ll tell you plainly when a CertainTeed roof can be repaired with matching product versus when the deck or flashing is too far gone and replacement is the smarter spend. For Montclair homeowners, that honesty matters. See our full CertainTeed sales & service scope or check what we offer across Montclair service area.
Styles & brands we work with







Common CertainTeed Construction Problems We Solve in Montclair
- Granule loss on south- and west-facing slopes. Inland Pomona Valley summer heat beats down on these exposures, and CertainTeed Landmark shingles on those slopes lose granules and start curling years before shaded sections. We see it constantly on Montclair’s single-story tract homes.
- Premature cracking on low-pitch rear sections. Many 1950s-70s Montclair bungalows have flat or low-pitch additions where standard CertainTeed steep-slope shingles were laid too flat over aging felt. Water pools, cracks form, leaks show up at valleys and wall flashings first.
- Santa Ana wind damage at edges and ridges. Exposed roof edges take the brunt of wind events. Shingle tabs lift and crease where the original install used too few fasteners or sealed over dust. We match replacement CertainTeed product and re-secure the perimeter.
- Failed underlayment beneath otherwise fine shingles. DiamondDeck and older felt underlayments on Montclair homes have often reached end of life. A shingle looks serviceable from the ground, but the moisture barrier beneath it is spent. Leaks appear at wall flashings and valleys.
- Tear-off logistics on narrow lots. Montclair is fully built out, and nearly every CertainTeed job here is a re-roof, not new construction. We stage tear-off debris in driveways and work around block-wall fences inches from the roofline.
CertainTeed Service in Montclair: What Local Conditions Mean for Your Equipment
Montclair sits in the Pomona Valley where hot inland summers and seasonal Santa Ana winds stress every exterior surface, similar to the conditions we see providing CertainTeed service in La Verne. But the bigger factor for CertainTeed roof owners is the city’s housing stock itself. Predominantly post-WWII single-story tract homes and small stucco bungalows with original wood-framed walls and low-pitch roofs, Montclair was essentially built out decades ago. There is no greenfield left. So nearly every CertainTeed roof job we do here is a tear-off and re-roof on a 50-70 year old deck, squeezed onto a narrow parcel with minimal setbacks and existing block-wall fences right where staging needs to go. That tight-lot reality changes how we sequence the work: staging in the driveway, keeping the neighbor’s side clear, and protecting the stucco and landscaping inches from the drip edge. Newer suburbs don’t have this problem. Montclair does. On a 1960s single-story tract home near the 10 freeway, we tore off a failed CertainTeed Landmark roof where the south slope had heavy granule loss and lifted tabs after a Santa Ana wind event. The original low-slope rear section had been shingled too flat over spent felt, so we corrected the pitch with a proper low-slope detail, laid new DiamondDeck underlayment, and finished with matching Landmark shingles and CertainTeed ridge cap. Because the lot was tight against the block-wall fence, we staged the tear-off in the driveway and kept the neighbor’s side clear. Do it right the first time or explain yourself twice.
CertainTeed Models & Products We Service in Montclair
We work on the full CertainTeed steep-slope lineup: Landmark architectural shingles, Presidential Shake and Presidential TL, XT 25 three-tab shingles, and DiamondDeck underlayment. For repairs, we use genuine CertainTeed shingles, ridge caps, and DiamondDeck underlayment so the roof stays consistent. We switch to quality aftermarket accessories only where they outperform the OEM part: vents, fasteners, and edge metal. For Montclair homeowners, that means a repair blends into the existing roof and the replacement parts we use are chosen for performance, not convenience.
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AfterCertainTeed Service Pricing in Montclair
What you’ll pay depends on slope count, deck condition, and whether we’re repairing a section or replacing the whole roof. Here are the ranges we work within across Montclair:
| Service | Price Range |
|---|---|
| Roof Repair | $400 – $1800 |
| Roof Replacement | $8000 – $20000 |
| Tile Roof Repair | $600 – $2500 |
A single-slope repair with matching CertainTeed product usually makes sense. Once granule loss and seal failure span multiple slopes on a 50-year-old deck, replacement is the better spend. Every estimate includes a written scope and line-item pricing. Call (866) 253-5808 to schedule yours.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair 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 – CertainTeed Construction in Montclair
If granule loss is isolated to one slope and the deck and underlayment are still sound, a slope repair with matching CertainTeed Landmark shingles usually works. If granule loss and seal failure span multiple slopes, or the deck is 50-plus years old, replacement is the better spend. Call (866) 253-5808 and we’ll assess it on-site.
Standard steep-slope CertainTeed shingles don’t perform well below the manufacturer’s minimum pitch, a problem we also address with CertainTeed repair in Ontario. Many Montclair homes have rear additions shingled too flat over aging felt, which leads to premature cracking and leaks. We correct the pitch with the right low-slope detail before re-covering. Call (866) 253-5808 for a free estimate on your specific roof.
Santa Ana winds lift and crease shingle tabs on exposed roof edges and ridges, especially where the original install used too few fasteners or sealed over dust. After a wind event, look for lifted or creased tabs at the eaves and hips. We can re-secure those areas and match replacement CertainTeed product where needed.
We use genuine CertainTeed shingles, ridge caps, and DiamondDeck underlayment for repairs, so a properly done repair blends into the existing roof. Color and weathering variation is normal on any repair, but matching product keeps it consistent. Call (866) 253-5808 to discuss what your roof needs.
No. We are an independent contractor. We are not authorized, sponsored, or warranty-backed by CertainTeed. That independence is why we can tell you straight whether a repair or replacement makes sense. Call (866) 253-5808 for an honest assessment.
Service Areas Near Montclair
Beyond Montclair, we provide CertainTeed service in CertainTeed service in Upland, CertainTeed service in Fullerton, Buena Park, Hesperia, and Cypress. If you’re in the Pomona Valley or nearby, call (866) 253-5808 to check availability.
Book Your CertainTeed Service in Montclair Today
We handle roof repair, roof replacement and installation, and emergency and storm damage work across Montclair. Call (866) 253-5808 to schedule your free estimate.
Written by Nelson Fung, Owner at Timberline Contractors, serving Montclair since he started the company.