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CertainTeed Roofing in Montclair, CA | Millstone Roofing
We provide Roof Repair – Montclair with independent CertainTeed service, from full tear-offs to targeted shingle repairs. What separates our work here is simple: we understand how CertainTeed shingles age on Montclair’s specific 1950s and 60s tract homes, where shallow attics and original skip sheathing change what a roof actually needs. If your CertainTeed roof is showing premature wear, call (855) 341-6021 and we’ll inspect it before recommending anything.
Millstone Roofing works with seven major shingle manufacturers, including CertainTeed. That matters in Montclair because we’re not pushing one product line. We’re matching the right material to your roof’s actual condition. Our CertainTeed sales & service team knows the Landmark, Xtreme IR, and Presidential Shake lines well enough to tell you when a repair makes sense and when a replacement is the honest answer.
Why Montclair Residents Choose Us for CertainTeed Service
Nelson Ibarra grew up in the Pomona Valley and has spent two decades working roofs across the Inland Empire. He learned construction through the building trades program at Chaffey College and built Millstone around a simple inspection-first approach. No guesswork. No pressure. Every recommendation comes with documented findings.
For Montclair homeowners, that means we inspect before we quote. We don’t sell shingles. We solve roof problems. The roof either keeps water out or it doesn’t, everything else is details. Our crews service the full Montclair service area and know exactly what to look for on the 91763 ranch and tract homes here, from under-vented attics to original sheathing that still flexes under new shingle courses.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Montclair
- Premature granule loss on south-facing slopes. Montclair’s Inland Empire heat beats down on south-facing roof slopes, and when attics lack proper ridge venting, CertainTeed Landmark shingles bake from underneath. We see exposed mat and curling that looks like a 25-year roof at year 12.
- Thermal-expansion cracking and seal-strip separation. Repeated heat cycles cause CertainTeed architectural shingles to expand and contract. On Montclair’s composition shingle roofs, this shows up as cracked tabs and shingles that no longer seal, leaving the field vulnerable to winter rain.
- Lifting and nail-head pop-through at hips and ridges. Original skip sheathing on 1950s and 60s Montclair homes flexes as temperatures swing. CertainTeed shingle courses fastened over those gaps start to lift, and nail heads push through the surface.
- Failed accessory underlayment over aged sheathing. When CertainTeed underlayment was installed over original decking that’s now deteriorated, winter rains wick into the seams. We replace the failed sections and install modern underlayment rated for the Inland Empire’s occasional downpours.
- Flat and low-slope section leaks adjacent to shingle fields. Many Montclair tract homes have built-up flat roof sections that meet the CertainTeed shingle field. The transition flashing fails first, and water finds the seam. We address both sides of that transition.
CertainTeed Service in Montclair: What Local Conditions Mean for Your Roof
Here’s the detail that changes everything for CertainTeed owners in Montclair. The south-side tract homes in 91763 were built in the 1950s and 60s with shallow attic ventilation and low-slope or flat roof sections. A straightforward shingle swap rarely fixes what’s actually wrong. The CertainTeed Landmark field curling on the south slope isn’t just old shingles, it’s attic heat with nowhere to go. So before we quote an overlay, we inspect the venting. In most of these homes, the fix requires added ridge venting and modern underlayment before new CertainTeed shingles will perform the way they should. That combination of original sheathing plus under-vented attics is specific to this housing stock. A homeowner in Chino or Ontario with a newer tract home doesn’t face the same underlying condition. The shingles are half the story here. The attic and the decking are the other half.
This is what we mean by inspection first. We don’t put new CertainTeed shingles over a roof that’s going to destroy them in ten years. We document what’s underneath, show you the photos, and build the scope from what’s actually there. On a 1962 single-story ranch off the south side of Montclair, our crew tore off a heat-curled CertainTeed Landmark field on the south-facing slope where granule loss had exposed the mat after years of attic heat with no ridge vent. We replaced the failed skip sheathing sections, added ridge venting, and laid new CertainTeed architectural shingles with fresh underlayment. The homeowner got a cooler attic and a shingle field that no longer bakes from underneath. That’s the difference between a shingle swap and a roof that lasts.
CertainTeed Models & Products We Service in Montclair
We work on the full CertainTeed line common to Montclair homes: Landmark architectural shingles, Xtreme IR reflective shingles for homeowners who want heat-reflecting performance on south-facing slopes, Presidential Shake luxury shingles, and the SwiftStart and Carriage House accessory lines. When we replace damaged shingles, we match the existing CertainTeed color and profile so the repair blends. For underlayment and flashing, we use quality aftermarket materials where they outperform the original accessory. We stock the common CertainTeed colorways locally for faster turnaround on Montclair repairs, and we order specialty colors direct when the roof calls for it.
See the difference
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AfterCertainTeed Service Pricing in Montclair
Claremont CertainTeed service runs a wide range depending on scope, and our Montclair pricing follows the same model. A targeted shingle repair with matching CertainTeed color typically falls between $350 and $900. Partial replacement of a damaged slope, including underlayment and venting corrections, runs $2,500 to $6,500. A full CertainTeed tear-off and replacement on a 1950s-to-70s Montclair ranch generally lands between $12,000 and $28,000, depending on square footage, decking condition, and whether we’re adding ridge venting or replacing skip sheathing. Added ridge vents and modern underlayment are the variables that move a Montclair quote. A free estimate from us includes a written scope, photos of what we found, and a line-item price. Call (855) 341-6021 to schedule yours.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair area and know this community well, with CertainTeed repair in Upland also available nearby. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Montclair
New shingles alone won’t fix curling if the attic is still under-vented. The heat that caused the original CertainTeed field to curl will do the same to the replacement. The fix on Montclair’s 91763 tract homes usually requires added ridge venting and modern underlayment before the new shingles go down. Call (855) 341-6021 and we’ll document your attic’s current venting before quoting anything.
Landmark is a solid architectural shingle for Montclair’s ranch and tract homes when the attic is properly vented. If your attic lacks ridge venting, we may recommend Xtreme IR for the south-facing slopes to reduce heat absorption, or we may recommend correcting the venting first and then using Landmark. The material decision follows the roof’s condition, not the other way around.
Lifting at hips and ridges on Montclair homes is usually a sign of flexing skip sheathing beneath the shingle courses, not necessarily a failed shingle. If the field is otherwise sound, we repair the ridge, replace the failed sheathing sections, and re-secure the shingles. If the field is 20 to 30 percent curled, we’ll tell you honestly whether a full replacement is the better spend. We won’t push a tear-off when a repair will hold.
Yes. Flat and low-slope sections need a different system than a shingle field, and the transition between them is where most Montclair leaks start. We treat the flat section with an appropriate built-up or membrane system and address the flashing where it meets the CertainTeed shingle field. Both sides get documented in the scope.
Yes. We match the existing CertainTeed shingle color and profile so the repair area blends with the surrounding field. CertainTeed colorways are widely available, and we stock the common ones locally for faster CertainTeed service in La Verne and Montclair. Bring us the shingle wrapper if you have it. It speeds up the match. For an exact quote on a partial replacement, call (855) 341-6021.
Service Areas Near Montclair
Montclair sits central to the Inland Empire, so we also handle CertainTeed work in CertainTeed service in Chino to the east, CertainTeed service in Ontario to the south, plus Whittier, La Mirada, and Temple City to the west. Same crews, same inspection-first process.
Book Your CertainTeed Service in Montclair Today
If your CertainTeed roof is showing granule loss, curling, or lifting at the ridges, don’t wait for another rainy season to confirm the problem. Call (855) 341-6021 to schedule your free inspection and written estimate. We’ll show you what’s happening up there and what it takes to fix it right.
Written by Nelson Ibarra, Owner at Millstone Roofing, serving Montclair and the Inland Valley.