Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Paramount
Roof replacement in Paramount runs about $9,500 to $18,500 for a typical asphalt shingle roof on the city’s postwar tract homes, with flat-roof add-on sections adding $3,000 to $7,000 depending on decking damage. That’s the honest range before anyone asks for a deposit. We’re Tilehurst Roofing, a Kingswell family company founded in 2000, and we know Paramount’s housing stock better than most because we’ve torn into enough of it. Greg Holloway runs our crews, and the number to call is (945) 303-9821. A live person answers, day or night.
Why Tilehurst Roofing Is Paramount’s Preferred Roof Replacement Company
Paramount homeowners don’t call us because they saw a billboard. They call because a neighbor off Somerset Boulevard had us replace a roof last year and the crew actually showed up in the window we gave, with a written price already in their hands. That matters in a city where so many homes have been passed between owners who each added a room, a garage conversion, or an enclosed patio without pulling a permit. Most Paramount re-roof jobs are not simple single-scope projects. They’re mixed-system jobs, and we treat them that way from the first inspection.
Our technicians are background-checked and uniformed. You’ll know exactly who is on your roof and why. Every job starts with a written price before any work begins, and every repair or replacement carries a written guarantee delivered before the crew leaves the property. If something fails inside the guarantee period, we return at no charge under our 365-Day Done Right Promise. That’s a full year of documented accountability, not a verbal promise.
Scheduling and dispatch are coordinated from the brand’s Los Angeles office, and crews serve Paramount locally. When you call (945) 303-9821, a live person answers 24 hours a day, 7 days a week. No voicemail queue. No waiting until Monday. We’re a Roof Replacement company that answers the phone like a local tradesman should.
Asphalt Shingle Roof Replacement in Paramount
Asphalt Shingle Roof Replacement in Paramount is the most common full-scope job we do, and the reason is straightforward: the city’s original housing stock was built between 1945 and 1965, and many of those roofs are now on their second or third shingle layer, pushing against the limit of what the decking can carry. A typical Paramount asphalt shingle replacement runs $9,500 to $14,500 for a home under 1,200 square feet, including tear-off, underlayment, and new shingles. Architectural shingles add about $1,500 to $2,500 over three-tab, but they’re the better call in a wind-prone city like Paramount.
The Tear-Off Decision
Some contractors in Paramount will offer to shingle over an existing layer to save money. We rarely recommend it. Those 1950s tracts often have decking that’s already been wet once or twice from the flat-roof add-on draining against the original fascia. You can’t see that rot until the old shingles come off. If the decking is soft, it gets replaced and priced before we nail anything down.
Wind Resistance Matters Here
Santa Ana winds off the San Gabriel Mountains regularly gust over 50 mph through Paramount in the fall and winter. Cracked or curling shingle tabs become projectiles. We install shingles with a wind rating that holds up to those gusts, and we nail to the manufacturer’s spec, not the minimum the job inspector might accept.
New Roof Installation in Paramount
New Roof Installation in Paramount means something different here than in most cities. It’s rarely a blank lot. It’s usually a homeowner who has had a converted garage roof fail completely, or an enclosed patio where the low-slope membrane has been ponding water for years, and now they want that section rebuilt properly and tied into the main roof. A new roof installation on a standard Paramount tract home with a single pitched roof runs $11,000 to $18,500, depending on material and the condition of the framing underneath.
When the Whole System Needs to Go
Once water has been sitting against the transition between a flat addition and the original pitched roof, the damage isn’t cosmetic. We find rotted fascia, softened decking, and flashing that’s separated from the wall. At that point, patching is throwing good money after bad. We walk the entire roofline on the initial estimate and price the full remediation in the same contract.
Built to Drain
A new roof installation on a Paramount home with any flat section has to be planned for drainage first. The original 1950s structure usually has adequate slope. The add-on almost never does. We correct the slope with tapered insulation or reframing before new membrane goes down, so water actually moves toward a drain instead of pooling against the house.
Trusted Brands We Service in Paramount
We don’t push a single house brand. Our Paramount customers get material options from GAF, Atlas, and Tamko, among seven major manufacturers including CertainTeed, Owens Corning, IKO, and Boral. That means the product fits the home, not just what happens to be in the truck. For a converted garage flat section, we may recommend a modified bitumen or TPO membrane from a manufacturer rated for interior-basin UV, because Paramount gets measurably more sun damage than Long Beach just a few miles west. For the main roof, GAF architectural shingles are a common choice on Paramount’s gable and hip tract homes. We stock local parts for fast turnaround on Paramount jobs and can source any of the seven brands quickly.
Common Roof Replacement Problems We See in Paramount Homes
- Unpermitted flat-roof additions. Converted garages and enclosed patios were built without permits and without drainage planning. Water ponds against the original pitched roof’s flashing, rotting the transition before the shingles ever fail.
- UV-oxidized membranes on flat sections. Paramount sits in the interior LA Basin’s smog belt, where UV intensity is higher than coastal Long Beach. Modified bitumen and built-up membranes on those add-ons oxidize to a brittle sheet years before the 1950s shingle roof above them gives out.
- Wind-damage from Santa Ana events. Fall gusts over 50 mph lift cracked or curling shingle tabs on aging postwar roofs. By the time a homeowner calls about a leak, the decking underneath is often exposed and wet.
- Decking rot at the roof transition. The junction where a flat addition meets the original pitched roof is the single most common failure point in Paramount housing. Water sits there, fascia rots, and decking softens. You won’t see it until the old roof comes off.
Pricing for Roof Replacement in Paramount, CA
Here’s what you can expect in Paramount. A full asphalt shingle replacement on a tract home under 1,200 square feet runs $9,500 to $14,500. Architectural shingles run $12,000 to $16,500. A flat-roof section on a converted garage or patio adds $3,000 to $7,000, with the high end reflecting decking replacement and drainage correction. New roof installation with framing repairs can reach $18,500. What moves the price is what we find under the old roof: rotted decking, damaged fascia, failed flashing. We write those allowances into the contract before we start, and any surprise gets priced and approved in writing before we touch it. Call (945) 303-9821 for a free estimate.
We Also Serve Cities Near Paramount
If you’re in Paramount or just over the line in Bellflower, Lynwood, Downey, or South Gate, we cover your roof the same way: written price first, guaranteed work, live person on the phone. The roof problems don’t stop at the city limit, and neither do we.
Serving Paramount, CA - Our Local Coverage Area
We’re based in the Paramount 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 Paramount
The most common reason is rotted decking under old shingles, especially where a converted garage or patio flat section drains against the original pitched roof. We can’t see that damage until the old roof is off. We handle it by writing a decking allowance into your contract upfront, so the price is known before work starts. If we find more than expected, you approve the number in writing before we proceed. Call (945) 303-9821 for an exact quote on your roof.
Yes, Paramount requires a permit for a full roof replacement, and the city inspection often reveals the adjacent unpermitted flat-roof addition, like a converted garage or enclosed patio. That section was never built to code, and the inspector will require it to be brought up to current standards. We factor flat-section remediation into the same contract from the start, because discovering it mid-job is almost a given on Paramount homes. Estimates are free at (945) 303-9821.
We treat it as one integrated project, not two separate jobs. Our crew walks the entire roofline on the first visit, identifies the flat section’s drainage and membrane condition, and prices both the shingle replacement and the flat remediation in a single written contract. That way you know the full cost before we tear anything off. Call (945) 303-9821 to schedule a free roof walk.
Look for a wind rating of at least 110 mph, and ideally 130 mph, because Santa Ana winds through Paramount regularly exceed 50 mph in the fall and winter. We install shingles rated for those gusts and nail to the manufacturer’s full spec, not the bare minimum the inspector accepts. For a specific recommendation, call (945) 303-9821 and we’ll walk you through the options for your home.
Compare line items, not bottom-line numbers. Ask each contractor whether decking replacement is included or an “if we find it” extra. Ask whether flat-roof remediation is in the same contract. Ask what wind rating the shingles carry and whether the warranty is written and delivered before the crew leaves. We give you a written line-item price before any work starts, and a written guarantee on every job. Call (945) 303-9821 and we’ll send someone out to measure and price your roof fairly.
Contact Our Paramount Roof Replacement Team
If you’ve been burned by a no-show or a price that changed at the door, call us. We answer the phone, we arrive in the window we give, and we put every guarantee in writing before a single nail is driven. On a 1957 tract house off Downey Avenue, our crew tore off the original pitched roof and found the adjacent converted-garage flat section had been ponding for years, its modified bitumen membrane oxidized to a brittle sheet under interior-basin UV. We replaced the decking where it had softened, laid a new low-slope membrane with proper slope to a new drain, then installed GAF architectural shingles with a starter strip, ridge vent, and new drip edge on the main roof. We priced the flat remediation in writing before we touched it. That’s how we work in Paramount. Call (945) 303-9821 to schedule your free estimate.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving Paramount with the Kingswell Guarantee.






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