Architectural shingles
Metal roofing
Tile roofing
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Westwood
A full roof replacement in Westwood typically runs between $11,000 and $19,000 for a standard single-story mill-era home, depending on whether the original 1x sheathing needs re-decking and how much snow-load bracing the structure requires. Most Westwood jobs take five to nine working days once materials arrive, and we schedule around the mountain weather window to avoid getting caught mid-tear-off in a Sierra storm. If you’re seeing water stains on ceilings, curling shingles at the eaves, or ice dams building up on the north slope after freeze-thaw, call (844) 966-3891 for a roof inspection with no strings attached. We know Westwood’s housing stock, and we know what opening up these roofs actually turns up.
Why Crown Line Roof Repair Is Westwood’s Preferred Roof Replacement Company
Westwood homeowners call us because we lead with repair and recommend replacement only when the numbers justify it. The housing here is mostly older single-story wood-frame stock, mill-era and mid-century builds with low-slope or shallow-pitch roofs, and those roofs hide problems that a generic contractor misses. Our Roof Replacement team spends the first hour on every Westwood job checking what’s under the shingles, not just what’s on top of them. We look for split 1x sheathing, rotted decking at the soffit line, and venting that never worked right in the first place.
Noel Carrasco, our lead on residential roofing, grew up working mountain roofs and understands what Sierra snow load does to a structure over forty winters. He’ll walk you through what he finds, show you photos, and give you a written line-item estimate before any work starts. Westwood homeowners appreciate that we’re brand-agnostic and won’t steer you toward a material that doesn’t match your home’s existing system.
Styles & brands we work with
Flat Roof Replacement in Westwood
Flat Roof Replacement in Westwood is a specialized job because many of the older homes near the old mill area and along Chestnut Street were built with low-slope profiles that trap moisture and rot decking from the inside out. A flat roof replacement here costs $9,500 to $15,500 depending on square footage, whether we need to strip and re-deck, and how many penetrations the roof has. We install modern membrane systems that handle the snow-melt freeze cycle better than the built-up tar-and-gravel roofs these homes originally got.
Membrane Selection for Snow Load
On Westwood flat roofs, we recommend TPO or modified bitumen membranes with taped seams rather than older rolled asphalt systems. The goal is a surface that sheds meltwater and won’t crack when temperatures swing from mid-30s to single digits in a single night. We also slope-check the deck and add tapered insulation where water ponds near the scuppers.
Venting and Moisture Correction
Most flat-roof failures in Westwood trace back to inadequate ventilation inside the roof cavity. Warm interior air condenses on the underside of the deck overnight, and over a decade that rots the sheathing from inside. During replacement we add soffit vents and, where the roof pitch allows, a low-profile ridge system so the new membrane has a dry deck underneath it.
Roof Installation in Westwood
Roof Installation in Westwood covers both full tear-offs and new construction, and the difference matters when you’re dealing with a town full of older homes with original sheathing. A full installation with architectural shingles on a typical 1,200-square-foot home runs $10,000 to $16,500, and if re-decking is required the permit often triggers additional code upgrades to the roof assembly. We handle the permit, coordinate the inspection, and install the roof so it passes on the first walk-through.
Re-Decking Mill-Era Homes
Westwood’s mill-era homes often have original 1x sheathing boards that expand and contract with Sierra freeze-thaw cycles. When we open a roof and find those boards cupped or split, we recommend removing them and installing 7/16-inch OSB or plywood before any underlayment goes down. This step matters because the new shingles won’t protect a deck that’s moving underneath them, and skipping it voids the manufacturer’s material warranty.
Ice and Water Shield at the Eaves
We install self-adhering ice and water shield along the eaves, in valleys, and around penetrations on every Westwood roof. That’s the layer that keeps ice-dam meltwater from backing under the shingles when the shaded north slopes freeze and thaw. Combined with proper drip edge, it’s the difference between a roof that lasts twenty-five winters and one that leaks after three.
Trusted Brands We Service in Westwood
We work with seven major shingle manufacturers so we can match what’s already on your roof rather than pushing you toward whatever’s easiest to order. For Westwood homes we typically install GAF Timberline architectural shingles for their snow-load rating, CertainTeed Landmark when we need a specific color match for a partial replacement, and Owens Corning Duration for customers who want a heavier shingle with a stronger nail strip. If your existing roof is IKO or Atlas, we can match that too. We stage materials locally in Lassen County, which keeps turnaround tight once the mountain weather window opens.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Westwood Homes
- Split and cupped 1x sheathing from decades of snow load and freeze-thaw cycles. The original boards expand in winter and split along the grain, which cracks the shingles above them and lets rot set into the deck.
- Ice dams at the eaves on shaded north slopes where meltwater refreezes overnight and forces water under the underlayment. Missing drip edge and ice and water shield on these homes lets that water into the wall cavity.
- Rotting soffits and fascia on low-slope roofs near the old mill area because warm air condenses on the underside of the deck and the moisture has nowhere to go. By the time you see staining, the wood is already compromised.
- Multiple layers of old shingles trapping heat and hiding decking damage underneath. Westwood homes from the 1940s and 1950s often have two or three layers, and layered roofs accelerate the freeze-thaw stress on the structure.
Pricing for Roof Replacement in Westwood, CA
A full architectural shingle roof replacement on a standard Westwood home runs $11,000 to $16,500. Smaller low-slope or flat roofs near the old mill area run $9,500 to $12,500. The biggest cost variables are whether the original 1x sheathing needs to come off and whether we find framing damage once the deck is exposed. That’s why every Westwood estimate includes a line-item allowance for re-decking and framing repair, priced per sheet and per foot, so we’re not adding surprise costs after the tear-off. Call (844) 966-3891 to schedule your free estimate, and we’ll send someone out to measure and inspect before we quote anything.
We Also Serve Cities Near Westwood
Our crews work regularly in Westwood and the surrounding Lassen County communities. We also handle roofing projects in Silver Lakes, San Fernando, Northridge, and Adelanto for homeowners who need the same inspection-first approach and multi-brand material matching. If you’re just over the county line, call us and we’ll let you know our schedule.
Serving Westwood, CA — Our Local Coverage Area
We’re based in the Westwood 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 About Roof Replacement in Westwood
The answer is usually yes if the home was built before 1960 and still has its original roof deck. Westwood’s mill-era homes were built with 1x sheathing boards that cup, split, and move with Sierra freeze-thaw cycles, and layering new shingles over that deck won’t stop the leaks. A proper replacement means pulling the old boards and installing 7/16-inch OSB or plywood before the underlayment goes down. We’ll tell you this during the inspection so you can plan for it in the budget, and we wire in a written change-order process so you approve any re-decking before we nail a single shingle. Call (844) 966-3891 for an inspection and an honest assessment.
We prevent ice dams by installing ice and water shield at least three feet past the warm wall line, adding proper drip edge, and making sure the attic or roof cavity has enough ventilation to keep the roof deck near the outside temperature. On Westwood homes with chronic ice damming, we often find the real problem is a warm attic heating the roof surface and melting snow unevenly. The fix is usually a combination of venting correction, air-sealing at the attic floor, and the right underlayment, not just more shingles. To price this for your specific roof, call (844) 966-3891 and we’ll take a look.
A roof replacement in Westwood that requires re-decking or structural repair can trigger current snow-load requirements, which may mean adding collar ties or upgrading rafters on older homes. While a straight re-shingle on an existing deck usually doesn’t require structural changes, any time we expose framing and find damage, the county inspector may ask us to bring the assembly to current standards. We handle the permit, coordinate the inspection, and tell you upfront if we expect structural work before the contract is signed. That way the final price aligns with what the county requires. Call (844) 966-3891 to discuss your specific home.
Yes, we install TPO and modified bitumen membrane systems that replace the old built-up tar-and-gravel roofs on Westwood’s low-slope and flat-roof homes. The key is checking the existing slope and adding tapered insulation where water ponds, because even a high-quality membrane fails early if meltwater sits on it each spring. Many of the mill-era flat roofs near the old mill area have drainage problems that are just as damaging as the missing venting, so we address slope before we cover the deck. Call (844) 966-3891 for a roof inspection that looks at the whole assembly.
We build a re-decking and framing allowance into every Westwood quote, priced per sheet and per lineal foot, so the base number you sign covers what we can see and the allowance covers what we find. If we open the roof and discover split sheathing or rotted fascia, we send you a written change order with a photo and an exact price before we do the work. If the allowance isn’t fully used, you simply don’t pay it. This is the only fair way to price a roof in Westwood where forty-year-old decking failures are the rule, not the exception. Call (844) 966-3891 for a free estimate, and we’ll walk you through exactly how it works.
Written by Noel Carrasco, Owner at Crown Line Roof Repair, serving Westwood since the company’s first roof inspection in Lassen County.