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CertainTeed Construction in Ontario, CA | Toolbox Contractors
We provide independent CertainTeed roofing and exterior installation across Ontario, from Landmark shingle tear-offs to standing seam metal and low-slope tie-ins. The one thing that makes our CertainTeed work different here comes down to what we find underneath: Ontario’s slab-on-grade tract homes from the 1950s through 1970s often lack the seismic tie-downs and modern sheathing that later-built cities already have, so a re-roof here routinely involves more than shingles. We’re Toolbox Contractors, led by Norm Castellano, and we’ve been untangling those mid-century builds as a General Contractor in Ontario and across the Inland Empire for years. Call (855) 382-3257 for a free estimate.
Why Ontario Residents Choose Us for CertainTeed Service
We install CertainTeed systems in Ontario every week, and we know the difference between a Landmark roof that’s still sound and one that has quietly lost its granule layer to a decade of 100°F summers. Norm grew up in the Muscoy area and studied construction technology at San Bernardino Valley College before spending nearly two decades on residential framing, roofing, and full gut-and-rebuilds. He’s the guy Ontario homeowners call when a previous contractor left the decking exposed or the flashing half done. We’re an independent CertainTeed installer, not a manufacturer affiliate, and we carry CertainTeed underlayments, starter, ridge vent, and edge metal so the assembly matches what the manufacturer specifies. Tell me what you’ve got and we’ll tell you what it actually needs.
For homeowners looking for CertainTeed sales & service across the Inland Empire, we bring the same full-scope approach to every job, from roof decking to the finish ridge cap.
Styles & brands we work with







Common CertainTeed Construction Problems We Solve in Ontario
- Santa Ana wind blow-offs on Landmark shingles. Ontario’s single-story tract homes sit broadside to the same wind events that sweep the 10 and 60 freeway corridors. When sealant strips fail on older Landmark roofs, tabs lift at ridges and rakes and the next gust takes them. We re-secure or replace the affected slopes and check the entire roof plane before calling it good.
- Sun-baked granule loss on south- and west-facing planes. Ontario summer highs routinely pass 100°F, and those exposed roof slopes age years faster than the north side. By the time homeowners notice granules in the gutters, the mat is usually showing. We inspect those planes first because they tell us whether a repair or a full replacement is the honest spend.
- Failed underlayment beneath tile roofs on 1960s – 70s tract homes. In neighborhoods around 91761 and 91762, the tile often outlasts the felt beneath it. Leaks show up at valleys and penetrations long before any tile breaks. We lift the tile, replace the underlayment with CertainTeed products, and reset the tile so it drains correctly.
- Ridge and eave edge-metal failures on original tract roofs. Fifty-year-old fascia and rake trim rots behind the shingle line and pulls fasteners loose. We replace the rotten wood, install new edge metal, and make sure the drip edge actually sheds water instead of trapping it.
- Skip-sheathing and unblocked rafters discovered during tear-offs. Older Ontario homes were built to a different code. When we strip a roof down, we often find gaps between boards and no blocking at the eaves. We re-deck, block, and add tie-downs so the new CertainTeed roof sits on a structure that can handle wind and seismic load.
CertainTeed Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario’s 91761 and 91762 tract homes were built slab-on-grade with no cripple walls or mudsill bolting for seismic movement. That detail changes how a re-roof works here. When we tear off an old CertainTeed roof in those neighborhoods, we routinely find ourselves coordinating roof-to-wall tie-downs and sheathing upgrades with the retrofit scope. That pairing doesn’t come up in Rancho Cucamonga or Upland, where CertainTeed in Upland benefits from later code cycles that already required the strapping and shear panels. In Ontario, a three-tab tear-off off South Grove Avenue means checking the rafters below while the sun is still up, because the next roof has to do more than shed water. It has to hold the building together when the ground moves. On a 1962 single-story stucco tract home off South Grove Avenue in 91762, our crew tore off a worn three-tab roof down to skip-sheathing and found the original rafters unblocked and the rake fascia soft from decades of Inland Empire sun. We re-decked the plane, replaced the rotted fascia, added rafter tie-downs to match the seismic scope, and installed a CertainTeed Landmark system with CertainTeed underlayment and ridge vent, giving the homeowner a wind- and heat-ready roof that also tightened the structure.
For the broader picture of where we work, see our Ontario service area page.
CertainTeed Models & Products We Service in Ontario
We install and service the full CertainTeed roofing lineup: Landmark and Landmark Pro architectural shingles, NorthGate Climateflex impact-resistant shingles for the wind and hail exposure common on Ontario’s open lot lines, Presidio standing seam metal for homeowners who want heat reflectivity and a tighter wind profile, and Flintlastic self-adhered modified bitumen for low-slope tie-ins on carport roofs and patio covers. We use CertainTeed underlayments, starter, ridge vent, and edge metal where the assembly calls for them, and our parts stock for Ontario turnarounds covers the common Landmark colors and accessory lines so we’re not waiting on a distributor when a repair can be done today. For larger projects, we order materials for the specific roof plan and have them delivered to the job site.
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AfterCertainTeed Service Pricing in Ontario
We price CertainTeed work the same way across San Bernardino County: line-item, written, and fixed before we start. No change orders for things we should have caught in the estimate. Here’s what certain CertainTeed work costs in Ontario right now:
| Service | Price Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Metal Roof Installation | $15,000 – $40,000 |
| Tile Roof Repair | $600 – $2,500 |
The biggest cost drivers in Ontario are decking condition (skip-sheathing often needs full re-decking), seismic tie-down upgrades triggered by the roof permit, and the number of roof planes. A free estimate includes a roof walk, decking inspection from the attic where accessible, and a detailed written quote. Call (855) 382-3257 to schedule yours.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario 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 Ontario
No, we don’t recommend overlaying on a 1960s roof in Ontario. The decking and underlayment are at the end of their service life, and adding a second shingle layer hides what’s failing beneath. A full tear-off lets us inspect the rafters, re-deck the skip-sheathing, and add tie-downs before the new Landmark system goes on. Call (855) 382-3257 and we’ll walk the roof and show you what’s actually there.
Landmark shingles hold up well when installed with the correct nail pattern, starter, and ridge vent, but on exposed single-story tracts we often recommend Landmark Pro or NorthGate Climateflex for the extra wind and impact rating. The right spec depends on your roof’s exposure and pitch. Call (855) 382-3257 for a free assessment.
Yes, Ontario requires a building permit for roof replacement, and if your home is slab-on-grade with no cripple wall bracing, the retrofit work is typically part of the same permit scope. We pull the permit, schedule the inspection, and coordinate the tie-down installation with the roofing work so you’re not doing two separate projects. Call (855) 382-3257 to talk through what applies to your address.
In Ontario’s 1960s and 70s tracts, the underlayment beneath the tile is usually the failure point. The tile outlasts the felt by decades, and leaks show up at valleys, pipe penetrations, and wherever the underlayment has dried out. We lift the tile in the affected area, replace the underlayment with CertainTeed repair in Chino and Ontario using the same products, and reset the tile. Call (855) 382-3257 for a leak inspection.
Standing seam metal reflects more heat and sheds Santa Ana winds more cleanly than shingles, but it costs two to three times more up front. For Ontario homeowners planning to stay long-term, Presidio standing seam often makes sense on exposed south- and west-facing planes. For a shorter horizon, Landmark Pro is the better spend. Call (855) 382-3257 and we’ll price both for your roof.
Service Areas Near Ontario
We serve Ontario and the surrounding Inland Empire communities including San Bernardino, Colton, Muscoy, Loma Linda, Rialto, and Highland. For CertainTeed work on the Lakeview side, see CertainTeed service in Lakeview. For work on the northern edge, see CertainTeed service in San Antonio Heights.
Book Your CertainTeed Service in Ontario Today
We’ll walk your roof, check the decking, and tell you exactly what the CertainTeed system needs. Call (855) 382-3257 to schedule your free estimate in Ontario today.
Written by Norm Castellano, Owner at Toolbox Contractors, serving Ontario and the surrounding Inland Empire, including CertainTeed service in Montclair.