Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why Pomona Homeowners Choose CertainTeed Construction
Rowan Construction Group provides Certainteed repair in Pomona for homeowners and property owners across the eastern San Gabriel Valley. We install and repair CertainTeed roofing, gypsum, and building envelope systems using OEM-compatible parts and manufacturer-specified methods, with a written flat price delivered before any work begins. Call (626) 606-1081 to schedule your free estimate.
CertainTeed has been a staple brand in Southern California construction for decades, and we’ve worked with their products long enough to know which lines hold up in Pomona’s inland heat and which ones need extra attention. The city sits in a thermal pocket where summer temperatures push past 105°F, and that stress shows up differently on a roof than it does in coastal LA or Orange County. We’ve replaced cracked Presidential Shake shingles on west-facing slopes in the Lincoln Park area, repaired wind-lifted Landmark tabs after Santa Ana events near the Fairplex corridor, and fixed moisture-damaged AirRenew board in historic bathroom renovations downtown. We’re not affiliated with CertainTeed and don’t speak for them. We work for you, with documentation to show what we found and what we did about it.
Why Trust Rowan Construction Group Pomona for Your CertainTeed Construction?
Grant Rowan trained at Los Angeles Trade-Technical College before founding this company in 2007, and the crew he’s built since then has handled CertainTeed products across more than 4,000 projects. We know the difference between a Presidential Shake TL shingle that failed from thermal oxidation and one that was simply nailed off-pattern. We can spot the blocked soffit vents that cook Landmark shingles from underneath, and we document both the problem and the fix with a photo record you keep.
Our technicians are background-checked and uniformed, and they arrive with CertainTeed-compatible materials already on the truck for common repairs. We stock genuine CertainTeed ridge caps, SureStart Plus underlayment, and color-matched Presidential Shake and Landmark shingles for the most common Pomona roof profiles. When a full replacement makes more sense than a patch, we tell you directly and put the number in writing before anyone touches a tool. That’s Clause 1 of The Haven Standard, and it’s how we’ve kept projects within a few percent of the agreed price since 2007.
We also offer a Free Second Opinion on any written estimate you’ve received from another contractor. Bring their line-item quote and we’ll review it with you, no charge. Measure twice, then we can talk.
Common CertainTeed Construction Problems We Fix in Pomona

- Presidential Shake thermal crazing on south- and west-facing slopes. The polymer-modified surface of Presidential Shake TL shingles oxidizes faster in Pomona’s 100°F-plus summer heat and intense inland UV. We’ve found this on homes near the historic core where original roof orientations maximize afternoon sun exposure. The cracking starts as hairline surface crazing, then deepens until water can penetrate. We replace the affected field with current-production Presidential Shake, matched to existing color, and often add ridge ventilation to reduce the attic temperatures that accelerate the damage from below.
- Landmark granule loss and blistering at the eave line. Landmark series shingles lose protective granules and blister where attic intake ventilation is choked. This is common in Pomona’s 1940s-1960s ranch homes, where original soffit vents are blocked by decades of paint, insulation, or rodent screening. The shingles overheat from below, the asphalt softens, and foot traffic or wind finish the job. We clear or replace soffit intake, then repair or replace the damaged courses.
- Seal-strip failure and wind uplift during Santa Ana events. CertainTeed’s self-sealing adhesive strips can fail to bond properly if installed in cold weather or if the nailing pattern drifts high on the shingle. When Santa Ana winds hit Pomona, typically fall through spring, the unsealed tabs lift at rake edges and ridges. We’ve repaired partial uplifts with OEM shingles and proper six-nail high-wind patterns, and we’ve replaced entire slopes where the failure was systemic.
- AirRenew gypsum edge-wicking behind bathroom tile. CertainTeed’s AirRenew board is designed to absorb formaldehyde and other VOCs, but the factory edge seal is critical. When installers cut the board on-site and don’t seal the exposed gypsum core, moisture wicks into the cut edges in Pomona bathrooms and laundry rooms. The board softens and crumbles behind the tile membrane. We remove the affected sections, install new AirRenew with proper edge treatment, and verify the vapor barrier continuity.
- Low-slope membrane degradation on additions and ADUs. CertainTeed’s Flintlastic and other modified bitumen membranes used on low-slope portions of Pomona home additions break down faster under the city’s extreme thermal cycling. The 105°F summer peak and occasional hard winter freeze create expansion-contraction stress that contractors from milder climates often underestimate. We inspect seam integrity, replace failed sections with heat-welded or torch-applied membrane, and detail the transitions to sloped roofing correctly.
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AfterCertainTeed Parts & Our Repair-vs-Replace Approach
For CertainTeed roofing, we use genuine CertainTeed shingles, SureStart Plus underlayment, and matching ridge and hip accessories. The color match and warranty documentation depend on it. Generic equivalents might save a few dollars per square, but the visual mismatch at the repair boundary and the lack of traceable lot numbers aren’t worth it.
In most cases, a localized repair with OEM components beats a full tear-off. A single wind-lifted slope, a thermal-crazed west face, or a valley leak from improper flashing - these are fixable. But when we find widespread thermal cracking across multiple exposures, or seal-strip failure exceeding roughly 30 percent of the field, replacement is the honest call. We don’t profit from selling you more roof than you need. Under The Haven Standard, the scope and price are written before work starts, and no change proceeds without a signed change order.
We stock the most common CertainTeed colors and accessories locally for fast turnaround on Pomona repairs. Call (626) 606-1081 for an exact quote - estimates are free.
Our CertainTeed Service Process - Step by Step

- 1
Diagnosis with documentation. We inspect the CertainTeed system - shingles, underlayment, ventilation, flashing, or interior gypsum - and photograph every condition we find. You receive the photo record as standard, not as an upgrade. For roofing, we note shingle series, age, exposure orientation, and ventilation adequacy.
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Written scope and flat price. We deliver a line-item quote with the repair or replacement detailed in plain language. The price is fixed. No “call for a quote” - the number is on the page, in writing, before anyone picks up a tool.
- 3
OEM-compatible repair or install. We use CertainTeed-specified materials and installation methods: six-nail patterns in wind zones, proper starter strip placement, SureStart Plus underlayment where the existing roof had it or where the slope demands it, and factory-sealed AirRenew edges on interior work.
- 4
Testing and verification. For roofing, we water-test valleys and penetrations. For interior work, we verify vapor barrier continuity and moisture meter readings before close-in. The crew lead signs off on a checklist.
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Warranty documentation and photo record. You receive a written warranty, the completed photo record, and, for full replacements, the CertainTeed warranty registration information. Our 365-Day Done Right Promise applies to all work: if it’s not done right, we make it right.
CertainTeed Products We Service & Install in Pomona
We work with the full CertainTeed roofing and gypsum lines most common in Pomona residential construction:
- Presidential Shake TL - polymer-modified asphalt shingles with dimensional shake appearance; we stock common colors for repair matching
- Landmark Series - including Landmark, Landmark Pro, and Landmark Premium; the workhorse shingle across Pomona’s post-WWII housing stock
- SureStart Plus underlayment - synthetic underlayment with enhanced slip resistance and lay-flat properties; we install with every full replacement
- AirRenew gypsum board - VOC-absorbing interior board for bathrooms, laundry rooms, and conditioned spaces; requires proper edge sealing
- Flintlastic and modified bitumen membranes - low-slope and flat roof applications on additions, ADUs, and commercial work
We maintain local inventory of the most requested colors and accessories to minimize lead time on Pomona repairs.
We Also Service These Brands

CertainTeed is one of more than fifty vetted brands in our sourcing system. We also install and repair KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, Kohler and Toto fixtures, GAF and Owens Corning roofing, and Belgard and Techo-Bloc hardscaping, plus Kitchen Remodeling services. The breadth matters because it lets us quote honest numbers rather than inflated ones - we can recommend the right product for your project, not the only one we carry.
FAQs - CertainTeed Construction Service in Pomona
No. We are an independent CertainTeed service provider, not a factory-authorized or affiliated contractor. We install and repair CertainTeed products using manufacturer-published specifications and OEM-compatible parts, but we work directly for you. Our loyalty is to the scope we write and the price we agree on, not to a brand’s marketing priorities. The Haven Standard governs our work, not a manufacturer program.
Yes, for roofing we use genuine CertainTeed shingles, SureStart Plus underlayment, and matching ridge and hip accessories. The color consistency and warranty traceability require it. For gypsum repairs, we use current-production AirRenew board with proper edge sealing. We do not use generic knock-offs for visible repair boundaries or warranty-critical components.
Most localized repairs - a wind-damaged slope, a valley leak, a bathroom AirRenew replacement - are completed in one to two working days once materials arrive. Full roof replacements on a typical Pomona single-family home take three to five days, depending on decking condition and weather. We don’t promise same-day dispatch for planned construction; we promise a written start date in your scope and a crew that shows up when agreed. Call (626) 606-1081 to check current scheduling.
We service and install Presidential Shake TL, Landmark Series (Landmark, Pro, Premium), SureStart Plus underlayment, AirRenew gypsum board, and Flintlastic modified bitumen membranes. If your CertainTeed product isn’t on this list, call us - we’ve likely worked with it, and we’ll tell you honestly if it’s outside our scope.
CertainTeed’s product warranties cover manufacturing defects, not installation errors or storm damage. Our use of OEM materials and manufacturer-specified installation methods preserves whatever product warranty coverage remains. However, no independent contractor can extend or guarantee a manufacturer’s warranty. We provide our own 365-Day Done Right Promise on all workmanship, backed by written terms, not an asterisk.
Pricing depends on scope, access, and material selection. Our current line-item ranges for Pomona are:
| Service | Price Range |
|---|---|
| Roof Repair | $400-$1,800 |
| Roof Replacement & Installation | $8,000-$20,000 |
| Tile Roof Repair | $600-$2,500 |
| Metal Roof Installation | $15,000-$40,000 |
These are flat-price ranges with written scope, not estimates that balloon. Call (626) 606-1081 for an exact quote - estimates are free.
Thermal oxidation of the polymer-modified surface, accelerated by Pomona’s inland heat and UV exposure on south- and west-facing slopes. The polymer hardens and crazes, then cracks. The fix is replacement of the affected field with current-production Presidential Shake, plus improved attic ventilation to reduce the temperature cooking the shingles from below. Call (626) 606-1081 for an exact quote - estimates are free.
Localized uplift at rake edges or ridges is usually repairable with OEM shingles and proper six-nail high-wind nailing. We replace the lifted tabs, seal the repair, and verify the remaining field’s seal-strip adhesion. If the uplift is widespread or the shingles are brittle from age and heat exposure, we’ll recommend replacement and show you the photos that support the call. Call (626) 606-1081 for an exact quote - estimates are free.
We install SureStart Plus or equivalent synthetic underlayment on every full roof replacement. It’s not optional in our scope - the material cost is modest compared to the protection it provides, and skipping it to save a few hundred dollars is a false economy in Pomona’s thermal and wind environment. The underlayment is itemized in your written quote.
AirRenew absorbs formaldehyde and VOCs, not moisture. It does not prevent mold; proper ventilation, vapor barrier continuity, and edge sealing do. We use AirRenew where the project calls for it, but we install it with sealed cut edges and verified exhaust fan capacity. The board is a component, not a solution.
Storm damage is typically abrupt, directional, and concentrated at edges and ridges - shingles lifted or torn in a pattern that matches wind direction, with intact but displaced pieces. Age and thermal damage are gradual and uniform: widespread surface cracking, even granule loss across exposures, and brittle shingles that break when handled. We document both conditions in our photo record and explain what we found before recommending repair or replacement. Call (626) 606-1081 for an exact quote - estimates are free.
Book Your CertainTeed Service in Pomona, CA

Call (626) 606-1081 to schedule your free estimate. We’ll inspect your CertainTeed system, document what we find, and deliver a written flat price with scope and warranty terms before any work begins. That’s been our process since 2007, across 4,000-plus projects, and it’s not changing now.
Written by Grant Rowan, Owner at Rowan Construction Group Pomona, serving Pomona since 2007.







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