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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
CertainTeed Roofing in Pomona, CA | Millstone Roofing
We handle Roof Repair in Pomona, CertainTeed roof inspection, and replacement across the city, from downtown bungalows to the 1950s ranch tracts in Wilton Heights and Lincoln Park. What makes our CertainTeed work here different is the same thing Pomona roofers have dealt with for decades: the Santa Ana winds hit these foothill neighborhoods hard, and aging shingles that looked fine in August come apart in October. Nelson Ibarra grew up in Ganesha Hills and has spent twenty-plus years reading Pomona roofs, so when we scope a CertainTeed repair, we already know what the climate has been doing to it. Call (855) 341-6021 and we’ll inspect first, then tell you honestly whether repair or replacement is the right call.
Why Pomona Residents Choose Us for CertainTeed Service
We inspect first. Every CertainTeed recommendation we make comes from documented findings, not a sales script, and that matters in a city where a roof can lose three shingles in one wind event and still have twenty years of serviceable life left elsewhere. Nelson Ibarra started in the building trades program at Chaffey College and has been on Pomona roofs long enough to know, the roof either keeps water out or it doesn’t. The rest is details.
Millstone Roofing is an independent CertainTeed in Covina and surrounding areas service provider. We are not manufacturer-affiliated and not authorized, which means we diagnose what is actually on your roof instead of steering every call toward a warranty claim. Our crews know the difference between Landmark and XT shingles on sight, and we write scopes that match how CertainTeed systems are really installed. If a repair will hold, we say so before we ever mention replacement. That is how we approach every job.
We also carry multiple roofing lines, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. The right material for your roof, not the easiest one for us to stock.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Pomona
- Curled and torn XT three-tab shingles after Santa Ana wind events. The original XT 25 and XT 30 shingles on Pomona’s 1950s ranch homes are now decades old. The keyway tabs lift, crease along the bend, and eventually snap off. We regularly replace wind-damaged courses on homes in Wilton Heights and Lincoln Park.
- Landmark granule loss and seal-strip failure on west-facing slopes. Pomona’s inland summers run regular 90s and 100s, and west-facing roof planes take the worst of the afternoon UV. Landmark architectural shingles eventually lose granule adhesion and the seal strips let go, so the first fall wind event peels whole courses loose. This is one of the most common CertainTeed repair calls we get in this city.
- Presidential Shake and Grand Manor blistering at laminate edges. Multi-layer luxury shingles trap heat and hold moisture at the laminate seams. In Pomona’s dry, hot climate that cycle produces blistering and delamination that homeowners often misread as a simple leak. We inspect the whole field before recommending a fix.
- Fastener pops and cracked sealant over original skip sheathing. Older downtown Pomona bungalows often have original wood sheathing under their CertainTeed shingles. The deck moves with age and temperature, and that movement telegraphs up through the shingles, cracking the sealant and popping fasteners.
- Low-slope and flat roof tie-ins that pond water. Many Pomona homes have patio additions or flat-roofed sections where the shingle roof meets a low-slope membrane. When the first winter storm hits after a dry spell, these intersections are where leaks show up. We trace the flashing and the membrane as part of any CertainTeed repair on these homes.
CertainTeed Service in Pomona: What Local Conditions Mean for Your Roof
Pomona sits in the foothills of the San Gabriel Valley, and every fall the Santa Ana winds come through with enough force to lift shingles, crack tiles, and peel back flashing on homes that have been baking through a summer of 90s and 100s days. The city’s older housing stock makes this worse. The 1950s ranch homes in Lincoln Park and Wilton Heights still carry original three-tab shingles that curl and tear at the edges, and a lot of those same houses have flat or low-slope patio additions that pond water quietly until the first serious storm. We see this exact combination on call after call after a wind event. The wind damage is obvious. The ponding is not, and it often only shows itself months later. What makes this a Pomona problem more than a Claremont or La Verne problem is the volume and density of these mid-century tract homes, plus the mix of flat-roofed buildings that sits right alongside them. A roofer working here has to be able to read both a pitched CertainTeed shingle field and a low-slope membrane tie-in, often on the same property. Our service area spans Pomona and the surrounding foothill communities, and we handle both.
CertainTeed Models & Products We Service in Pomona
We work on the full CertainTeed shingle line, including Landmark architectural shingles, XT 25 and XT 30 three-tab shingles, Presidential Shake, and Grand Manor. We also handle CertainTeed accessory components: starter strips, hip-and-ridge, and matching underlayments. Where a system calls for genuine CertainTeed parts, that’s what we use. Where the brand adds cost without adding performance, we use quality aftermarket flashing and vent boots instead. We stock common CertainTeed repair materials locally so we can move quickly when a Pomona roof needs attention. Our team provides CertainTeed sales & service across the Inland Valley.
See the difference
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AfterCertainTeed Service Pricing in Pomona
CertainTeed repair pricing in Pomona depends on what we find when we get on the roof, and whether you need our Roof Replacement in Pomona or a simpler fix. A targeted shingle replacement on a few wind-lifted courses runs less than a full re-roof, obviously, but the honest answer is that we cannot price a repair without seeing the deck, the seal strips, and the flashing condition. A free estimate from us includes the roof inspection, written findings, and a line-item quote so you know exactly what the work will cost before anything starts. We do not change the price after work begins. If the roof is past its granule and seal-strip life, we will tell you. If isolated shingles are the only issue, we will tell you that too. The point is to fix what actually needs fixing. Call (855) 341-6021 for an exact quote on your CertainTeed roof.
Serving Pomona, CA — Our Local Coverage Area
We’re based in the Pomona area and also provide CertainTeed service in Walnut; we know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Pomona
Yes, with the right installation details. Landmark is an architectural shingle with decent granule retention, but Pomona’s 90s and 100s summers and intense UV still take a toll over 20-plus years, especially on unshaded west-facing slopes. We recommend inspecting seal strips and granule coverage annually after about year 15. Call (855) 341-6021 and we’ll take a look.
Usually the seal strips had already lost adhesion from heat and UV exposure, and the wind simply finished what the sun started. We see this most on original XT three-tab shingles on Pomona’s 1950s ranch homes, where the keyway tabs curl and lift first. If the deck is sound, we can replace the wind-damaged courses. If the granule layer is gone and the seal strips are dead across the field, replacement is likely the honest answer.
In most cases, yes. Isolated wind-lifted or cracked shingles on an otherwise sound deck get a real repair, not a re-roof pitch. We match the shingle, replace the damaged courses, and check the surrounding fasteners and flashing. Our rule is simple: repair when repair is right, replace when replacement makes sense.
CertainTeed’s shingle warranties cover the shingle field, not low-slope membrane systems, and most flat patio roof issues are at the tie-in where the shingle roof meets the membrane. We rework the flashing at that transition and inspect the membrane for ponding damage. Call (855) 341-6021 and we’ll check the whole intersection, not just the shingles.
Yes, where the system calls for it. We use genuine CertainTeed starter strips, hip-and-ridge, and matching underlayments. Where the brand adds nothing but cost, like vent boots and some flashing, we use quality aftermarket parts instead. You get the right part for the job, not a brand tax.
Service Areas Near Pomona
We serve Pomona and the surrounding San Gabriel Valley communities, including La Verne, Claremont, San Dimas, Chino, and Walnut. If you’re just outside the city line, ask and we’ll let you know if we can get to you. We also offer CertainTeed service in La Verne and CertainTeed service in Claremont.
Book Your CertainTeed Service in Pomona Today
If you have wind-lifted shingles, granule loss, or a leak that showed up after the last storm, call (855) 341-6021 today to schedule a free roof inspection. We will write down what we find, give you a line-item estimate, and tell you straight whether repair or replacement makes sense. No pressure, no pitch, just the facts from someone who has worked Pomona roofs for two decades.
Written by Nelson Ibarra, Owner at Millstone Roofing, serving Pomona and the Inland Valley since the 1990s.