CertainTeed Roofing Nationwide

CertainTeed Roofing: The Pomona Owner’s Guide

We stock and install CertainTeed-compatible roofing components across Pomona, with most CertainTeed repair jobs running $400-$1,800 installed and replacement systems starting at $8,000. Parts we carry on the truck include Landmark, NorthGate, and Presidential Shake series shingles, plus matching ridge caps, underlayment, and flashing. Most Pomona homeowners realize something’s wrong when they spot granules collecting in gutters after a Santa Ana wind event, or when a ceiling stain appears below a south-facing slope that’s been baking since 2018.

Call (626) 606-1081

Which CertainTeed Models This Applies To

CertainTeed’s residential lines break into three tiers, and the part you need depends on which shingle is on your roof. Landmark is the workhorse, a dual-layer laminate in dozens of colors; NorthGate adds SBS rubberized asphalt for impact resistance, which matters in Pomona where hail isn’t common but thermal cycling is brutal; Presidential Shake mimics cedar at triple the weight and requires beefier starter strips and ridge caps. Check the shingle back for a printed code, or measure exposure: Landmark shows 5-5/8 inches, Presidential Shake shows 7-1/2. The starter strip must match the shingle series, or the warranty voids and the edge lifts in the first high wind. We source OEM CertainTeed accessories for warranty-registered roofs and carry quality aftermarket equivalents for older systems where the color run is discontinued. The aftermarket ridge vent, for instance, fits the nail line but lacks CertainTeed’s printed certification number, which an inspector may flag if you’re selling in the next two years.

Signs Your CertainTeed Roofing Is Failing

• Granule loss exposing the asphalt mat. On Pomona roofs with 10+ years of direct sun, the ceramic granules shed from thermal expansion stress, leaving the shingle core vulnerable to UV breakdown. We see this most on west-facing slopes above 1,200 square feet.
• Curling or clawing at shingle edges. The bottom edge turns up (curling) or the center rises while edges stay flat (clawing), both signaling the asphalt has dried past recovery. NorthGate’s SBS formulation resists this longer, but no shingle outlasts 20 years of Inland Empire heat without ventilation.
• Cracked shingles in a diagonal pattern. Thermal shock from hot days and cool nights creates stress fractures, especially where attic ventilation is marginal. The crack pattern follows the plywood seam below.
• Ridge cap blow-off after wind. The ridge cap is the highest-stress shingle on the roof; if fasteners missed the truss or the sealant strip aged out, it departs first. We find this on Pomona’s older Fairplex-area homes where original ridge vents were hand-nailed.
• Flashing separation at wall or chimney. Step flashing corrodes where stucco meets roof, and counter flashing lifts when the sealant bead dries. Water follows the gap into the wall cavity before it ever drips inside.

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Replacement Cost & What’s Included

CertainTeed roof repair in Pomona runs $400-$1,800 depending on how many squares are involved and whether we match a discontinued color run. Full replacement with CertainTeed Landmark starts at $8,000 and ranges to $20,000 for complex cut-ups with multiple valleys and two-story access. Here’s how the numbers break:

The written quote includes tear-off, deck inspection with photo documentation, CertainTeed DiamondDeck or RoofRunner underlayment, starter strips, field shingles, ridge cap, vent replacement if needed, and haul-away. We pull permits through the City of Pomona Building & Safety Division and schedule inspection. Under Clause 1 of the Haven Standard, that price is fixed; if we find rotted decking, we photograph it, write a change order with the exact square footage and plywood grade, and nothing gets nailed until you sign. Our 365-Day Done Right Promise covers workmanship; CertainTeed’s own warranty covers material defects if the system is registered.

DIY or Call Us?

There’s a short list of what a Pomona homeowner can safely check from a ladder or the ground: gutter granule buildup, visible shingle gaps, attic daylight showing through, and whether ridge vents are still seated. Do not walk the slope. Asphalt shingles lose grip as they age, and a 6/12 pitch becomes a slide fast. More importantly, any repair involving nail penetration, flashing integration, or valley work requires matching the existing course lines and sealant strip activation, which is harder than it looks and obvious when it’s wrong. We’ve re-done DIY ridge cap jobs where the homeowner used the wrong nail pattern and voided the wind warranty. For anything above the gutter line, call (626) 606-1081 and we’ll scope it with a photo record you keep.

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