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 Pomona
Roof replacement in Pomona rarely stays a simple shingle job once the old layers come off, and that’s exactly why you need a roofing-only contractor who has opened up hundreds of homes across 91766, 91767, and 91768. At Spartan Roof Repair, our Roof Replacement team handles the tear-off, the surprises underneath, and the re-roof as one continuous job. We work the Pomona Valley full time, so when Santa Ana winds peel back a 1960s tract roof or monsoon rain finds a failed valley, you get a straight answer about what it will take to fix it. Call (855) 382-3237 for a free estimate.
Most Pomona homeowners don’t have a roof problem until the wind or first rain shows them one. Then they need a real diagnosis, not a sales pitch. That’s what we do.
Why Spartan Roof Repair Is Pomona’s Preferred Roof Replacement Company
Spartan Roof Repair is a roofing-only shop. We inspect roofs, we repair them, and we replace them, and nothing else. That focus matters in Pomona because the housing stock is unforgiving: pre-war bungalows near downtown with knob-and-tube-era roof boards, and 1950s-to-1970s tract homes across the north and east with original second-layer shingles. A generalist handyman doesn’t know what hides under either. Our crews do.
We’re authorized to install and service products from seven of the industry’s most trusted roofing brands, including CertainTeed, Owens Corning, and Atlas. That means a roof replacement in Pomona gets matched to your actual exposure: sun-baked ridge lines, Santa Ana wind uplift, and sudden monsoon downpours. We don’t push one brand because it’s what we have in the yard. We recommend what holds up here.
Pomona customers call us because they want someone who will show up, assess honestly, and quote the real scope of work. When a downtown bungalow needs a full redeck instead of a simple overlay, we say so before the contract is signed, not after. That’s the Spartan standard.
Styles & brands we work with






Roof Replacement Contractor in Pomona
A roof replacement contractor in Pomona has to deal with a specific problem that other Southern California cities don’t see as often: stacked shingle layers over rotted skip sheathing. On the older bungalows near downtown Pomona, particularly in 91766 and 91767, homeowners routinely discover that two or three shingle layers were applied over original board sheathing that has since dried, split, and lost its holding power. A low bid that budgets only for shingles and underlayment doesn’t cover what actually has to happen once the roof is opened.
Our Roof Replacement in Pomona process starts with an inspection that looks past the shingles. We check decking condition, framing, flashing, and ventilation before we price the job. If a tear-off reveals structural work, we stop, photograph it, price it in writing, and get your approval before we continue. No surprises that you pay for later. No change orders you never saw coming.
In Pomona, a full tear-off and replacement on a typical ranch home runs $11,000 to $18,000 for architectural asphalt shingles. A downtown bungalow with multiple layers and a redeck typically lands between $16,000 and $24,000. Flat and low-slope sections on additions and garages add $1,500 to $4,000 depending on membrane choice and decking condition.
Full Tear-Off and Redeck
When we replace a Pomona roof, we don’t nail new shingles over old problems. A full tear-off gets us to the decking, which is where the real condition of the roof lives. If the decking is soft, split, or delaminated, we replace it before any underlayment goes down.
This step is the difference between a roof that lasts 25 years and one that fails in five. It’s also the step that gets skipped when a low-bid contractor is trying to win a job with a number that doesn’t include it.
Permit-Pulled Replacement
Opening a Pomona roof triggers code compliance on what’s underneath. That can mean reinforcing older framing, upgrading venting, or bringing decking up to current nailing standards. We pull the permit, handle the inspections, and price the code work into the job before we start.
If a city inspector wants something corrected that wasn’t in the original scope, we price it and get written approval before touching it. That’s how you keep a roof replacement from becoming a runaway cost.
Asphalt Shingle Roof Replacement in Pomona
An asphalt shingle roof replacement in Pomona has to account for inland heat and UV exposure that ages shingles faster than the coastal cities 30 miles west. Pomona sees consistent summer temperatures in the 90s, and the direct sun on a 1960s tract home across 91768 doesn’t just fade shingles, it bakes the asphalt until the granules loosen and the shingles curl. Once a Santa Ana wind event hits, those curled shingles peel back in sheets.
We install architectural asphalt shingles from CertainTeed, Owens Corning, and Atlas as our standard recommendation for Pomona homes. Architectural shingles carry higher wind ratings than three-tab and hold up better against the temperature swings between Pomona’s hot days and cool nights. If a homeowner wants a heavier look or longer warranty, that’s a conversation, not a pressure tactic.
For a typical Pomona ranch home, an architectural shingle replacement runs $11,000 to $17,000. Larger two-story homes and those with steep pitches land closer to $18,000 to $25,000. The condition of the decking underneath drives most of the variance. A roof that’s been re-shingled twice over original skip sheathing almost always needs a redeck, and that’s the honest number to plan for.
Wind-Rated Shingles for Santa Ana Season
Pomona sits in a wind corridor. Santa Ana events come down through the Cajon Pass and hit the eastern San Gabriel Valley with gusts that crease ridge caps and lift shingle edges. We install shingles rated for 110 mph or better on Pomona homes, and we reinforce the ridge lines with proper fastening and sealant.
If your current roof has curled or lifted shingles after the last wind event, a repair might buy you a season. A replacement is the only fix that resets the clock. We’ll tell you which one your roof actually needs.
Second-Layer Removal
Many Pomona homes, especially the postwar tracts, have a second shingle layer over the original. That second layer hides what’s happening underneath. We remove every layer down to the decking on every replacement we do. It’s the only way to inspect the structure and start with a clean, dry surface.
Skip the second layer and you put a new roof over an old one that’s already failing. In Pomona’s heat, that second layer also traps heat and shortens the life of the top layer. We don’t do it.
Trusted Brands We Service in Pomona
Spartan Roof Repair installs and services products from seven major roofing manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Pomona homeowners, that means real material choice across budget tiers. If your priority is wind resistance, we’ll show you CertainTeed or Owens Corning options. If you want a heavier, more distinctive profile, Atlas and IKO have architectural lines that hold up well in the inland sun. We maintain stock knowledge and direct supplier relationships that let us source materials fast for Pomona jobs, so a replacement doesn’t stall waiting on a special order. The brand matters less than the installation, but you should still get to choose what goes on your roof.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Pomona Homes
- Stacked shingle layers over rotted skip sheathing: On the pre-war bungalows near downtown and Lincoln Park, two or three shingle layers sit on top of original board sheathing that’s been drying out for 80 years. The tear-off exposes soft, split decking that has to be replaced before new underlayment goes down.
- Santa Ana wind damage on 1960s tract roofs: The ranch homes across 91768 were built with material that’s now 50 to 60 years old. Wind events peel back dried, curled shingles and crease the ridge caps, exposing failed underlayment that lets water in during the next storm.
- Monsoon rain through dried-out flashing: Pomona’s summer thunderstorms dump water fast. Roofs with sun-baked flashing around penetrations, chimneys, and valleys leak within minutes. The damage looks sudden, but it’s years of heat-and-UV aging finally giving way.
- Flat and low-slope sections on additions and garages: Many Pomona homes have additions or garages with flat or low-slope roofs. These sections trap water, collect leaf debris, and fail faster than the pitched roof. A full replacement has to address them, not shingle over them.
Pricing for Roof Replacement in Pomona, CA
Here’s what a roof replacement actually costs in Pomona right now. A standard architectural shingle roof on a 1,500 to 2,000 square foot ranch home runs $11,000 to $17,000. A downtown bungalow with multiple layers removed and a full redeck runs $16,000 to $24,000. Flat and low-slope sections on garages and additions typically add $1,500 to $4,000. The biggest variables are decking condition, roof pitch, number of stories, and whether the home is in 91766, 91767, 91768, or 91769 with its own wind exposure and access considerations. We quote fixed numbers with allowances for discovered decking work, written into the contract, approved in writing before we proceed. Call (855) 382-3237 to schedule a free estimate and get a real number for your Pomona roof.
We Also Serve Cities Near Pomona
Spartan Roof Repair works across the eastern San Gabriel Valley. If you’re in Walnut, Covina, South San Jose Hills, or West Covina, our crews handle the same roofing-only replacement and repair work we do in Pomona. Call (855) 382-3237 and tell us which city you’re in, and we’ll schedule your free estimate the same way we would for a Pomona homeowner: inspection first, straight answer second.
Serving Pomona, CA — Our Local Coverage Area
We’re based in the Pomona 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 Pomona
Almost certainly yes. The pre-war bungalows in 91766 and 91767 commonly have two or three shingle layers built up over original skip sheathing and knob-and-tube-era roof boards. Once we tear off those layers, we usually find rotted, split decking that has to be replaced before the new underlayment goes down. We inspect first, price the redeck as part of the quote when we can see signs of it, and get written approval on anything we find during tear-off before we continue. Call (855) 382-3237 for an exact assessment of your roof.
Santa Ana winds exploit every weak point on an aging roof. On Pomona’s 1960s tract homes in 91768, the original shingles have dried and curled over 50-plus years of inland sun, and wind events peel them back from the edges, crease ridge caps, and expose the underlayment. A replacement on these homes has to include wind-rated shingles, reinforced ridge fastening, and proper drip edge. If your roof lifted during the last wind event, call (855) 382-3237 and we’ll tell you if it’s repairable or if replacement is the right call.
Yes, a roof replacement in Pomona requires a permit, and the tear-off triggers an inspection of what’s underneath. On older homes, that can mean code upgrades to framing, venting, or decking nailing standards that weren’t part of the original roof. We pull the permit, schedule the inspections, and price code compliance into the job upfront. If an inspector requires something outside the original scope, we price it and get written approval before doing the work. Call (855) 382-3237 and we’ll walk you through what applies to your specific Pomona home.
Flat and low-slope sections on Pomona additions and garages get replaced as part of the same job, not shingled over or ignored. These sections carry standing water after monsoon downpours and fail faster than the pitched roof, so we inspect them, replace the membrane or coating, and re-flash the transitions where they meet the pitched roof. We price flat sections separately because they use different materials and labor than the shingle roof. Call (855) 382-3237 for a detailed quote on your entire roof, including the flat sections.
A Pomona roof replacement quote is measured in roofing squares, which is 100 square feet of roof surface, plus line items for tear-off, decking, underlayment, flashing, and any flat sections. Compare bids by reading the line items, not just the total. If one bid is $6,000 lower than the others, that contractor is usually skipping the redeck, reusing old flashing, or not pulling a permit. We write every scope in line items and include allowances for decking work we can’t see until tear-off. Call (855) 382-3237 and we’ll send you a quote you can actually compare against the others.
Brent Calloway started Spartan Roof Repair to fix the way roof replacement is sold: no vague scopes, no low numbers that balloon mid-job, no generalist handymen guessing at your roof. If your Pomona home needs a roof replacement, call (855) 382-3237 and get a straight answer from a roofing specialist.
Written by Brent Calloway, Owner at Spartan Roof Repair, serving Pomona and the eastern San Gabriel Valley.