Architectural shingles
Metal roofing
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Westwood
Roof replacement in Westwood runs $14,000 – $38,000 for a typical single-family home, with steep-slope tear-offs and re-decking pushing toward the higher end. Most of our Westwood jobs take five to nine working days once materials arrive on site. If you’re weighing repair against replacement or want a straight read on what your roof needs, call us at (866) 361-1724 for a free inspection and line-item estimate. We are Chatham Roof Repair, and we work solely on roofs – inspection, repair, and replacement – for homeowners across the 96137 ZIP and the surrounding mountain acreage.
Why Chatham Roof Repair Is Westwood’s Preferred Roof Replacement Company
This is mountain roofing, not valley roofing. At 5,000 feet on the eastern edge of the Sierra-Cascade divide, Westwood roofs take snow load, ice, and ember exposure that flat-valley crews in Susanville or Redding rarely contend with. Nelson Quarry leads our crew, and the work we scope here reflects what we see on Westwood rooflines every season: mill-era steep pitches, aging decking under decades of snow, and valleys packed with pine needles. We do not sell you a replacement because the name of our company happens to be Chatham. We are a repair-first company. If your roof can be fixed correctly and safely, we will say so plainly. If replacement is warranted, we’ll show you why with photos from your own roof, not stock images.
Our Roof Replacement team handles the full lifecycle, from the first inspection through tear-off, re-deck, underlayment, and shingle install. Because we install products from seven major manufacturers – GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – you are not stuck with a take-it-or-leave-it single product line. We match your existing roofline where we can, and we match your budget and warranty goals where it counts.
Styles & brands we work with






Reroofing in Westwood
Reroofing in Westwood means tearing off the existing shingles and underlayment, repairing or replacing the decking beneath, and installing a complete new roof system. On older mill-era homes and cabins around town, most roofs are now 20 to 30 years old. The original construction rarely included ice and water shield at the eaves, which is why we see so many leak patterns that start where ice dams form. A full tear-off lets us correct that. Westwood reroofing typically lands between $15,000 and $34,000 depending on pitch, square footage, and decking condition, with steep-pitch work and re-decking at the upper end. The honest answer is that you cannot know the true decking condition until the old roof comes off. That is why we scope a re-deck allowance into every Westwood quote instead of discovering soft plywood mid-job and handing you a change order.
Steep-pitch tear-off and re-deck
The older Westwood housing stock leans steep, which was designed to shed snow. That same pitch makes tear-off slower and safety more demanding, and it exposes decking that has been soaked by decades of freeze-thaw cycling. We plan for fall protection, dumpster placement, and material staging on every steep roofline before we quote.
Match the roof you already have
We are multi-brand for a reason. If you have an existing roof system with a particular shingle profile from CertainTeed or Tamko, we can often match it in profile and color so the replacement does not look like a patch job. Where a complete reroof is called for, that same multi-brand capability means you choose the product rather than inheriting whatever the contractor has a truckload of.
Flat Roof Replacement in Westwood
Flat roof replacement in Westwood is less common than steep-slope work, but it shows up on additions, carports, detached shops, and a handful of mid-century builds. Westwood’s flat roofs contend with the same snow load as the pitched ones, minus the natural shedding advantage. Snow sits, ice forms at the parapet, and any existing membrane or torch-down begins to fail where standing water or ice accumulates. If your flat roof has ponded water for more than 48 hours after a storm or shows cracking membrane at the seams, replacement is often the honest call. Westwood flat roof replacement generally runs $9,000 to $22,000 depending on square footage, membrane type, and whether the substrate needs replacement.
Snow-load design on flat roofs
At this elevation, we do not spec flat roofing that would be fine in the Sacramento Valley. The snow load governs the framing underneath, and we check for sag before we quote. Where joists show deflection or the decking has been saturated by repeated ice damming at the parapet, that work gets scoped and priced up front.
Commercial and shop roofs
Detached shops, garages, and small commercial outbuildings in Westwood often have low-slope or flat roofs that were installed cheaply the first time. We re-roof them with the same care we give a house, including drip edge, proper membrane adhesion, and code-compliant edge detailing for ember resistance.
Trusted Brands We Service in Westwood
We install from seven major manufacturer lines, and around Westwood that matters more than in most markets. The right shingle for a house off County Road A-21 in a pine ring is not necessarily the right shingle for a Century City condo, and we are not tied to one brand’s limitations. We regularly work with GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Westwood homeowners, that means we can spec architectural shingles rated for high wind and ember exposure, match your existing profile where a repair or partial replacement calls for it, and order materials with the manufacturer’s correct high-elevation and high-wind application patterns. Multi-brand inventory also shortens lead times when the county road or weather window tightens your schedule.
Common Roof Replacement Problems We See in Westwood Homes
- Ice damming at the eaves. Westwood nights drop well below freezing and days climb above it. Snowmelt runs to the cold eave, refreezes, and backs under the shingles. Older mill-era homes with no ice and water shield underlayment are the ones we see leaking first, especially on the north and east slopes.
- Snow-load sag and hidden decking rot. Steep pitch helps, but decades of heavy Sierra snowpack still compress framing and saturate plywood at any flashing failure. We find soft decking only after tear-off, which is why replacement quotes here must include a realistic re-deck allowance.
- Pine-needle debris and moss packing valleys. The conifer canopy over much of Westwood drops needles year-round. Valleys, penetrations, and gutter lines clog with decomposing needle litter that holds moisture against the roof surface and blocks drainage, accelerating shingle granule loss and underlayment breakdown.
- Ember intrusion on older construction. Westwood is surrounded by dense pine and fir, and roof edges, gable vents, and open eaves on mid-century homes were never built to today’s ember-resistant standards. We upgrade ridge vents and edge details during replacement to close the obvious entry points.
See the difference
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After
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Before
AfterPricing for Roof Replacement in Westwood, CA
Budget honestly for Westwood. A standard tear-off and reroof on a modest 1,200 to 1,800 square foot home runs $14,000 to $26,000. Steep pitches, multiple roof planes, older decking that needs replacement, or long material hauls from the county road push that to $30,000 and above. High-end architectural shingle systems with upgraded ice and water shield and full re-decking on a larger acreage home routinely land in the $32,000 to $38,000 range. Flat roofs on shops and outbuildings run $9,000 to $22,000. The county permitting path, well and septic setback staging, and open-lot drainage all affect scope and price. Call (866) 361-1724 and we will walk your roof and write you a line-item estimate that includes the decking allowance before we start, not after.
Key Takeaways
- Westwood roof replacement is scoped for heavy snow load, ice damming, and ember resistance – not valley roofing standards.
- Most Westwood homes need a tear-off, not a second layer, because ice and water shield was rarely used in original mill-era construction.
- Re-decking gets budgeted up front, because soft decking only shows itself after the old roof comes off.
- Permitting for outlying acreage runs through Lassen County, not a city building department.
- Free inspection and line-item estimate: call (866) 361-1724.
We Also Serve Cities Near Westwood
From our base in Inglewood, we work the mountain region around Roof Replacement in Westwood and reach nearby communities including West Hollywood, Hollywood, Beverly Hills, and Century City. Each market has its own roof stock, its own wind and moisture loads, and its own permitting rhythm. If you own property in more than one of these areas, we can scope both in a single site visit.
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
If your property sits within Westwood’s incorporated boundary, the permitting path runs through the city. If you live on outlying acreage or in an unincorporated Lassen County parcel around Westwood, Lassen County is the permitting authority. We confirm the jurisdiction before we quote because the two paths have different inspection schedules and plan-review timelines. We pull the permit and schedule the inspections on every replacement we perform. Call (866) 361-1724 and we will tell you which path your property falls under after one look at your address.
Well and septic setbacks dictate where debris can be staged, where dumpsters can sit, and where equipment can drive. On acreage parcels with a private well and septic system, there are minimum clearance distances that restrict access routes and material drop points. We survey those setbacks before we scope the job so the logistics are priced into the quote. If we ignored them, the tear-off would run into a fencing problem with the county mid-project. Call (866) 361-1724 for a free site walk that accounts for this from day one.
Detached buildings have their own snow-load and access considerations that usually differ from the house. Shops and cabins on the same parcel often have a low-slope or flat section, older framing, and no ice and water shield. They also sit farther from county road access, which means material staging and tear-off debris removal become longer hauls. We scope outbuilding work separately and often recommend a different membrane or shingle spec than the main house. For a quote on your outbuilding, call (866) 361-1724.
Eaves and valleys are where ice dams and pine-needle debris do their worst work. Valley metal collects needle litter that holds water, and eaves freeze-thaw all winter because the overhang stays colder than the roof’s main body. Without ice and water shield, meltwater backs under the shingles at the eave and wicks into the decking. That is the failure pattern we see over and over on mill-era Westwood homes. We address both during replacement with valley metal, eave membrane, and proper ventilation. Call (866) 361-1724 for an inspection that checks these weak points first.
Look at the re-deck allowance, the underlayment spec, the ice and water shield placement, and whether the bidder scoped county permitting and well/septic setback logistics. A lower bid that omits re-decking or skips ice and water shield at the eaves is not cheaper; it just moves the cost into the first winter after the snow hits. Multi-brand material choice matters too – if one bid specs a single brand at a forced product line, ask why. We price every Westwood quote with line items for decking, underlayment, ventilation, flashing, and haul logistics so you can compare apples to apples. Call (866) 361-1724 and we will walk you through what is on the page.
Get a Free Roof Replacement Estimate in Westwood
If your roof is showing its age, leaking at the eaves, or you simply want a straight answer about what it will take to replace it properly at this elevation, call Chatham Roof Repair. Nelson Quarry and the crew will walk the roof, check the decking, scope the county or city permit path, and write a line-item estimate that shows exactly what is being done and why. Estimates are free, and there is no obligation. Reach us at (866) 361-1724.
Written by Nelson Quarry, Owner at Chatham Roof Repair, serving Westwood and the surrounding Lassen County mountain region.