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 Norwalk
Roof replacement in Norwalk usually costs between $8,500 and $16,000 for a typical 1,100 to 1,600 square foot single-story home, with flat roof tear-offs running slightly higher due to the labor involved in removing multiple bonded layers. Most Norwalk jobs take 3 to 5 working days once materials arrive. We respond to Norwalk service calls within one to two business days for inspections, and we quote every job in writing before any work starts. Call (866) 650-8319 to schedule a free roof inspection or replacement estimate.
Why Gable Roof Repair Is Norwalk’s Preferred Roof Replacement Company
We know what sits on top of Norwalk homes because we’ve opened up hundreds of them. The housing stock here tells a story: single-story stucco tract homes from the 1950s and 60s, low-pitch roofs over modest floor plans, and decades of heat loading on materials that were never designed for the inland Gateway Cities sun. When Norwalk homeowners call us about a leak, we don’t lead with a replacement quote. We inspect first, document what we find, and recommend only what the roof actually needs.
Our Roof Replacement team handles the full tear-off, decking assessment, underlayment, and new material installation, but we also carry a repair-first approach baked into the company name. If a Norwalk roof has five more years in it, we say so. If it doesn’t, we show you exactly why with photos from the ridge to the eaves.
We currently serve all four Norwalk ZIP codes: 90650, 90651, 90652, and 90659. Being based in Orange County puts us close enough to respond quickly, and far enough that we don’t cut corners to rush the next job. Neil Drummond runs the company with a simple standard: price the job honestly, then build it right.
Styles & brands we work with






Flat Roof Replacement in Norwalk
Flat Roof Replacement in Norwalk is the most common full roof job we do here, because so many of these mid-century tract homes were originally built with built-up roofing that has now reached its third or fourth decade in direct sunlight. A typical flat roof replacement on a Norwalk home runs $9,500 to $17,000 depending on square footage, number of layers being torn off, and whether we need to replace damaged decking once we expose the sheathing.
The job starts with a full tear-off down to the decking. On most Norwalk homes, that means removing two or three layers: the visible top layer, one or two intermediate layers, and often the original 1950s BUR still bonded to the wood. We inspect every inch of exposed sheathing, mark soft spots, and photograph what we find before quoting any additional decking replacement. Once the decking is sound or repaired, we install new underlayment, drip edge, and the flat system you choose.
Built-Up Roof Removal
Removing old BUR from a Norwalk home is labor-heavy. The layers bond together after decades of heat, and the top surface breaks into chunks rather than peeling cleanly. Our crews remove it all by hand down to bare wood. No shortcuts like leaving old layers in place, which adds weight and hides damage.
Flat System Installation
We install flat roofing systems from the same manufacturers we trust for shingle work: GAF, CertainTeed, and Owens Corning all produce flat-system membranes and coatings. You choose the material after we walk through the cost difference and lifespan expectation. No single-brand upsell. The roof’s pitch and your budget decide the system, not our inventory.
Roof Installation in Norwalk
Roof Installation in Norwalk covers both full replacements on existing homes and new roof systems on Norwalk’s infill construction and second-story additions. A full new roof installation on a standard Norwalk tract home runs $8,500 to $14,000 for asphalt shingles, with architectural shingles adding $1,500 to $3,000 on a typical roof. New construction pricing depends on the roof design, but most Norwalk additions under 500 square feet fall between $4,000 and $8,000.
When we install a roof in Norwalk, we rebuild the entire system from the decking up. That means new underlayment, flashing at every penetration, drip edge, and proper valley treatment. The older the house, the more critical this gets. 1950s and 60s homes were framed when code expectations were narrower, and rotted decking around chimneys, vents, and plumbing penetrations is common in Norwalk’s stock.
Architectural Shingle Systems
Architectural shingles hold up better under Norwalk’s heat than older three-tab styles, mostly because they’re thicker and resist granule loss longer. We install architectural shingles from GAF, CertainTeed, and IKO on most Norwalk replacements where the existing roof is pitched enough to carry them. The material cost is higher, but the lifespan difference is real.
Roof Decking Replacement
Decking is the plywood or OSB under your roofing material. On Norwalk homes, it’s often original to the 1950s or 60s build and has absorbed moisture through failed flashing or seams. We write a decking allowance into every replacement quote, so if we expose soft wood during the tear-off, you already know the per-sheet price. We only install new decking where we determine it’s actually needed, and you approve it in writing first.
Trusted Brands We Service in Norwalk
We work with seven major roofing manufacturers, and on most Norwalk jobs the conversation centers on GAF, CertainTeed, and Owens Corning because those brands offer strong mid-tier and premium options that hold up under intense sun. We don’t push one brand. If your existing roof is a CertainTeed system and you want to stay on that brand for warranty consistency, we install it. If GAF’s warranty structure fits your budget better, we install that. Material availability for Norwalk jobs is generally fast since we stock common shingle colors and underlayment for the brands we install most, which shortens the time between estimate and handoff.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Norwalk Homes
- Seam sealant failure on low-slope BUR roofs. Norwalk’s inland heat pushes dark roof surfaces past 160°F in summer, and seam sealants cook and crack by late summer. Homeowners see a leak near a penetration and call for a patch, but the real problem is often layers below that have already started to fail.
- Multiple bonded layers hiding original 1950s material. A visible seam crack on the top layer is frequently the tip of a three-layer stack. The original BUR is still under there, bonded tight to the decking. A tear-off is the only real fix, and it changes both the scope and the quote.
- Rotted decking at penetrations. Chimneys, plumbing boots, and old vent flashing on Norwalk roofs were often installed with materials that didn’t survive sixty years of thermal cycling. Once we lift the old roof, soft sheathing is common around these spots.
- Mismatched additions and flashing failures. Patios, garages, and second-story additions from the 1970s and 80s often tie into the original roof at awkward valleys and wall junctures. The flashing was rarely rebuilt correctly when the addition went up, and Norwalk’s rare winter rains find these gaps fast.
Pricing for Roof Replacement in Norwalk, CA
Asphalt shingle roof replacement in Norwalk typically lands between $8,500 and $14,000 for a standard single-story tract home. Architectural shingle upgrades add $1,500 to $3,000. Flat roof replacement, which is very common in Norwalk, runs $9,500 to $17,000 because the tear-off labor is heavier and the materials differ. Decking replacement, if needed, costs $2.50 to $4.00 per square foot of damaged area, and we write that exact per-sheet price into your quote before we start. Every estimate is free, line-itemed, and valid in writing. Call (866) 650-8319 to schedule yours.
We Also Serve Cities Near Norwalk
Our crews work a focused radius around Norwalk, including Cerritos, Artesia, Bellflower, and Santa Fe Springs. If you’re in a neighboring city and want the same inspection-first, brand-agnostic approach to roof work, we’ll come out. The drive is short, and the process is identical: inspect, document, then quote.
Serving Norwalk, CA — Our Local Coverage Area
We’re based in the Norwalk 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 Norwalk
Norwalk sits in the hottest inland corridor of the Gateway Cities, and low-slope dark roofs here reach surface temperatures over 160°F. That heat cooks seam sealant until it hardens, cracks, and loses adhesion, usually by August or September. The fix that actually works on these roofs is sealing the seams with a heat-tolerant material after a full inspection, and in many cases, removing the old failing layers entirely. Call (866) 650-8319 for a free inspection if you’re chasing the same leak every year.
Because on Norwalk’s 1950s and 60s tract homes, the repair you called for often sits on top of two or three older layers, usually including the original built-up roof still bonded to the decking. Once we open it up and find that stack, a patch won’t solve the underlying bond and moisture problems. We take photos, show you what’s under there, and quote the tear-off as a separate line so you’re making an informed call, not accepting an upsell.
A square is 100 square feet of roof surface, and it’s the standard unit roofers use to price both materials and labor. Most Norwalk tract homes fall between 11 and 16 squares on the main roof, not counting the garage. If a quote lists a per-square price, the total roof area is the square footage of the roof plane, not the footprint of the house. We show both numbers on every estimate.
It might, and we handle that before it becomes a surprise at the end. Our quotes include a written allowance for decking replacement at a fixed per-sheet price. If we open the roof and find rotted sheathing around penetrations or valleys, we photograph it, explain what we found, and get your written approval before replacing a single sheet. Nothing gets installed that wasn’t priced and approved first.
Ice and water shield is less critical in Norwalk than in mountain climates because we don’t get freeze-thaw cycles, but we still install it at valleys, eaves, and any penetration on low-slope homes because our winter rains can be intense when they do arrive. Ridge vents only work on roofs with enough pitch to create airflow; on the low-slope flat or near-flat roofs common in Norwalk, we recommend a different ventilation approach. We’ll tell you what your roof actually needs after inspecting it.
Call Roof Replacement estimator Neil Drummond’s team at (866) 650-8319 to schedule a free inspection and written quote. We serve all Norwalk ZIP codes and will walk your roof if you want to see the problems before you decide.
Written by Neil Drummond, Owner at Gable Roof Repair, serving Norwalk, CA.