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
Trusted Roof Replacement for Westminster Homeowners
A full roof replacement in Westminster, CA typically costs between $9,800 and $18,500 for a standard asphalt shingle roof on a 1,500 to 2,200 square foot home. Most replacements take 1 to 3 days once materials arrive, and our calendar for Westminster jobs is usually booked 2 to 3 weeks out during the dry season. Select Roof Repair has handled replacements across every Westminster neighborhood, from the tract homes north of the 405 to the older stock near Bolsa Chica Road, where original 1960s roofs are now hitting end of life. Noel Carrasco leads every estimate personally, so you get a straight answer on whether repair or replacement is the right call before anyone tries to sell you anything. Call (855) 382-0485 for a free, no-pressure inspection.
Roof Installation
Roof installation is the complete tear-off of your existing roofing material down to the decking, followed by installation of a new underlayment, flashing, and finished roof system. In Westminster you need a full roof installation when the current roof has widespread granule loss, multiple leak points, or decking rot that patching can’t fix. Select Roof Repair performs tear-off and installation using materials from seven manufacturers, so the underlayment, flashing gauge, and shingle weight get matched to your home’s specific exposure, not whatever is left on the truck. A typical roof installation in Westminster runs $9,800 to $18,500 depending on roof complexity, material grade, and decking condition. We also replace rotted fascia and add intake ventilation during installation when the existing setup isn’t moving air, which is common in 1970s-era Westminster homes with boxed eaves.
Tear-Off Versus Overlay
Westminster building code allows a second layer of shingles over the first in some older homes, but we rarely recommend it. An overlay hides decking rot and adds about 40 pounds per square foot of dead load, which older trusses near the coast don’t always like.
We perform full tear-off installation on nearly every job. You get clean decking inspection, fresh underlayment with proper nail patterns, and a roof that can be fully inspected at the sheathing level before anything gets covered.
Decking and Ventilation Upgrade
About 60 percent of the Westminster roofs we tear off need some decking replacement, most often along eaves and valleys where moisture sat for years. We inspect every sheet after tear-off and only replace what’s actually failed, with pricing set before we start. Attic ventilation gets checked during installation too. In Westminster’s hot inland summers, a roof without balanced intake and exhaust will cook shingles from below and shorten their life by a third.
Styles & brands we work with
Roof Replacement Contractor
A Westminster Roof Replacement contractor is a specialist who removes and replaces the entire roof system, and the right one in Westminster will be licensed, insured, and focused exclusively on roofing. You call a roof replacement contractor when repairs stop being cost-effective, which in Westminster usually means repeated leaks, shingle curling along south-facing slopes, or an original roof that has exceeded its service life. Select Roof Repair is a roofing-only contractor, not a general builder who picks up roof jobs between kitchen remodels, and our estimates reflect that focus. A full replacement by a roof replacement contractor in Westminster ranges from $9,800 to $18,500, with material grade and roof geometry driving most of the variance. We pull all Westminster permits, schedule all inspections, and stand behind every install with a written workmanship warranty.
What Licensing and Insurance Mean
A state-licensed roofing contractor in Westminster must carry workers’ compensation and liability coverage, and the permit process requires both. If a crew shows up without workers’ comp and someone falls, the homeowner can be named in the claim.
Select Roof Repair is fully state-licensed and insured, and we provide proof before any work starts. You should never feel awkward asking for it, and no legitimate roofing contractor in Westminster will hesitate to show you the paperwork.
Material Recommendations Without Bias
Most roof replacement contractors in Westminster are tied to one manufacturer. Select Roof Repair installs products from seven brands including CertainTeed and Owens Corning, so our material recommendations are driven by your roofline, budget, and Westminster’s salt air exposure, not by a supply contract. When a contractor only offers one brand, the brand always wins. When we offer seven, your roof wins.
Asphalt Shingle Roof Replacement
Asphalt shingle roof replacement is the removal and disposal of the existing shingle roof and installation of a new asphalt shingle system, and it remains the most common replacement route in Westminster because the material handles our climate well at a reasonable cost. You need an asphalt shingle roof replacement when shingles are curling, losing granules, cracking, or when the roof is over 20 years old and starting to leak at flashing points. Select Roof Repair installs architectural asphalt shingles from multiple manufacturers including CertainTeed, Owens Corning, and IKO, with heavier grades available for Westminster homes near open exposure. An asphalt shingle roof replacement in Westminster typically costs $9,800 to $15,000 depending on roof size, pitch, and shingle specification. We also handle teardown and disposal, so the old shingles, nails, and felt get hauled off the same day the new roof goes on.
Shingle Grade and Wind Rating
Westminster sits in a wind zone where a basic three-tab shingle barely meets code, and we rarely recommend it. A dimensional architectural shingle rated for 110 mph winds costs about 15 percent more but survives the strong winter gusts that come through the canyons.
We show you samples at every estimate, and you get the manufacturer’s wind and algae-resistance rating for each option before you decide. The goal is a roof that handles Westminster’s weather, not one that just passes an inspection.
Algae and Salt Air Resilience
Homes in the western half of Westminster deal with morning coastal moisture that feeds algae growth. Algae-resistant shingle options from Atlas and Owens Corning keep the streaks away without pressure washing, which is a poor idea for asphalt shingles anyway. For homes closer to the beach, we may recommend a stainless steel flashing upgrade and stainless nails to protect against corrosion. These are the choices that separate a roof that lasts from one that starts failing in five years.
New Roof Installation
New roof installation is the process of building a complete roof assembly from the deck up, and in Westminster it applies to both tear-off replacement on existing homes and roofing newly built structures. You need new roof installation when the existing roof is beyond repair, when a home addition or remodel has changed the roofline, or when building new construction anywhere in Westminster. Select Roof Repair manages everything from permit application through final inspection, and we work with your general contractor or building designer to make sure the roof integrates with the rest of the build. New roof installation in Westminster runs from $10,500 to $18,500 for most single-family homes, with the cost driven by roof size, slope, and whether the project is new construction or a replacement. We order materials only after the structural inspection passes, so you’re never paying for shingles that sit in the Westminster sun while someone fixes a framing issue.
Building Code and Permits
Westminster building permits require roof projects to meet current Title 24 energy standards, including cool-roof ratings for certain slopes. We handle this paperwork for every job, and our installs pass inspections the first time more often than not because we build to code, not just to spec.
If your project includes a solar-ready roof, we can install the appropriate decking blocking and standoffs so a future solar contractor has clean anchor points. That’s a conversation worth having before the roof goes on, and we raise it when it fits your home.
Roofing-Only Scope Means Focus
Select Roof Repair doesn’t frame additions, pour concrete, or hang drywall. We roof, and every hour of our day is spent on roof systems. That focus matters on a new roof installation because the details, like step flashing at dormers, valley metal gauge, and vent boot sealing, are exactly where general contractors lose time and homeowners lose roofs. When you bring us in for new roof installation in Westminster, you get a crew that does this one thing every working day.
Reroofing
Reroofing is the removal of the existing roof covering and installation of a replacement system, which in Westminster means we’re rebuilding the weather barrier on an existing home rather than constructing a new roof structure. Most Westminster homes get reroofed rather than re-roofed as a fresh new construction, and the common trigger is age: original composition shingle roofs from the 1960s through 1990s are now past their useful life. Select Roof Repair treats reroofing as a full tear-off project, which allows us to inspect the decking, replace rotted sheathing, and install new underlayment designed for our Roof Replacement in Garden Grove and Westminster’s specific moisture profile. A reroofing project in Westminster runs $9,800 to $18,500 depending on home size and material choice, and the job is completed in phases so your home never sits exposed overnight. Reroofing with us means the old roof comes completely off, and what goes back on is built to the current code, not the code that existed when the house was built.
When Does Reroofing Beat Repair?
Repair is the right call when delamination is isolated and the roof is under 15 years old. Once a roof in Westminster passes the 20-year mark and you see curling at the eaves, granule loss in the gutters, and rusted flashing, reroofing is the smarter money. We’ll tell you honestly which one applies to your roof, and we’ll show you the photos from the inspection so you can see the condition with your own eyes.
Underlayment and the Second Water Shed
The shingles you see are only the first line of defense. A proper reroofing job in Westminster includes synthetic underlayment rated for California’s fire codes and installed with the correct lap and fastener pattern. Old felt underlayment dries out, tears, and lets water through long before the shingles above it fail. Our reroofing quotes always include the underlayment, and we don’t treat it as an optional upgrade. It’s part of the system, and a roof system is only as good as its weakest layer.
Flat Roof Replacement
Flat roof replacement in Westminster is the removal and re-installation of a low-slope roof system, usually on additions, garages, patio covers, and some 1950s-era homes with low-pitch main roofs. You need flat roof replacement when ponding water sits after rain, when visible seams or blisters form, or when a long-term elastomeric coating is bubbling and peeling. Select Roof Repair installs multiple flat roof systems including modified bitumen and single-ply membranes, and we select the material based on how water drains off your roof’s actual surface. Flat roof replacement in Westminster costs $12 to $22 per square foot, with the total depending on whether the project is a small garage or a full low-slope house. Flat roofs fail faster when water can’t move, so drainage correction is part of every flat roof replacement we do, not an add-on.
Ponding Water and Slope Correction
Westminster flat roofs don’t get the pitch that gravity needs, so even a half-inch of standing water accelerates membrane breakdown. We use tapered insulation or additional drain lines to get water moving, which extends the life of the new membrane by years. A roof that holds water after 48 hours is a roof that will leak, and no membrane product can escape that basic physics.
Membrane Options for Coastal Air
For most Westminster homes, a multi-layer modified bitumen system gives the best balance of cost and puncture resistance, especially if someone will walk on the roof to service an HVAC unit. Single-ply membranes like TPO reflect heat, which matters on sun-blasted additions facing southwest. We walk you through both options at the estimate and recommend the one that fits your roof’s use, not the one that’s easiest for us to install.
Brands We Service
Select Roof Repair installs and services roofs from seven manufacturers, and we maintain active relationships with their technical teams so we’re current on installation specs and warranty requirements. We work extensively with CertainTeed, whose Presidential Shake and Landmark lines are popular choices for Westminster homes with higher-end aesthetics, and Owens Corning, whose Duration series handles wind and granule retention well in our climate. Both brands offer strong transferable warranties, and we register every installation with the manufacturer so the warranty is valid.
We also install IKO and Atlas systems where they fit the homeowner’s target price and performance, and we carry full technical documentation for each. Our roofing-only focus means our crews are trained across all seven brands, not just the one a distributor pushes. Whether you have an existing CertainTeed roof, an Owens Corning roof, or any other make on your house, we can inspect, repair, or replace it with the right material for your home.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Granules in the gutters: If you’re cleaning coarse grit out of your Westminster gutters after every rain, your shingles are shedding their protective surface. Granule loss exposes the asphalt to UV breakdown, and once it starts it accelerates fast.
- Curling or lifted shingle edges: Shingles that curl at the corners or lift in the wind have lost their bond and are letting water underneath. Westminster’s hot afternoons and Santa Ana winds hit this hard on south-facing slopes.
- Ceiling stains or bubbling paint indoors: Brown rings on a ceiling or paint that’s bubbling near a wall corner means water is already inside. By the time you see it on the inside, the leak has often been running along the decking for weeks.
- Daylight through the attic boards: Go into your attic on a sunny afternoon and turn off the light. If you can see daylight poking through the roof deck, water can get through too, and your roof barrier is compromised.
- Roof age over 20 years: Most composition shingle roofs in Westminster rated for 25 to 30 years start showing meaningful failure at 20, especially if they were installed over old felt or without proper ventilation. Age alone doesn’t mean replacement, but it means an inspection is overdue.
Our Process, Step by Step
- 1
Free inspection and diagnosis: Noel Carrasco walks the roof with a moisture meter and a drone for areas that aren’t safe to access on foot. You get photos of every problem spot, and we explain what we found before we talk about any solution.
- 2
Written estimate with line-item pricing: You receive a detailed quote showing material, labor, disposal, permit fees, and any decking replacement contingency. The price we quote is the price you pay, and if we find hidden damage during tear-off, you approve any change before we proceed.
- 3
Permit application and scheduling: We file the Westminster permit and coordinate with city inspectors. You don’t touch the paperwork, and we schedule the build around your availability, not the other way around.
- 4
Tear-off and installation: The old roof comes off in sections, with tarps at the foundation to catch debris. New decking goes in where needed, then underlayment, flashing, and the finished roof system install according to the manufacturer’s latest specs.
- 5
Final inspection and cleanup: A Westminster city inspector signs off on the permit, then we walk the roof with you and show you the finished work. Nails get swept with a magnetic roller, debris is hauled the same day, and you get your warranty registration before we leave.
How Much Does Roof Replacement Cost in Westminster?
A typical asphalt shingle roof replacement in Westminster runs $9,800 to $15,000 for a standard 1,500 to 2,000 square foot ranch or two-story home. Larger homes, steep pitches, or tile-to-composition conversions push the number to $15,000 to $18,500, and flat roof work typically lands in the $12 to $22 per square foot range. What moves the price most is roof complexity: hips, valleys, dormers, chimneys, and skylights all require more flashing work, and flashing is where water gets in when it’s done wrong. Material grade matters too. A standard architectural shingle is less than a high-end CertainTeed or Owens Corning line, and heavier shingles cost more to install because they’re more labor-intensive. To avoid overpaying, get line-item quotes and compare what’s actually included: underlayment type, flashing replacement, decking contingency, permit fees, and disposal. Some Westminster contractors quote low and then hit you with change orders when they find rotted decking. Our free estimate includes a decking inspection during tear-off with a set per-sheet price for any replacement, so you know the worst case before we start. Call (855) 382-0485 for an exact quote, and we’ll show you the numbers in writing.
Our Service Area Near Westminster
Select Roof Repair serves Westminster and surrounding Orange County communities including Roof Replacement in Midway City, Roof Replacement in Stanton, Garden Grove, Cypress, Fountain Valley, Los Alamitos, Rossmoor, Hawaiian Gardens, La Palma, Huntington Beach, and Anaheim. Most Westminster inspections are scheduled within a few days, and we keep crews working across the area year-round. For storm damage or active leaks, we prioritize urgent calls. If you’re nearby and wondering whether your roof is holding up, see our home page for a full overview of our roofing services, and we can usually have someone out to look within the same week.
Serving Westminster, CA — Our Local Coverage Area
We’re based in the Westminster area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Roof Replacement in Westminster
Roof replacement is the complete removal of your existing roof covering down to the decking, followed by installation of a new underlayment, flashing, and finished roof system. It’s different from repair, which addresses isolated problem areas and leaves the rest of the roof in place. In Westminster, full replacement is the right call when the roof is past its service life or has widespread failures. Call (855) 382-0485 if you’re unsure which path fits your roof, and we’ll tell you straight.
Most single-family roof replacements in Westminster take 1 to 3 days of on-site work once materials are delivered. Roofs with complex geometry, multiple layers to remove, or significant decking replacement can extend to 4 or 5 days. Weather delays happen in the winter, and we’ll keep you updated on any schedule changes. Call (855) 382-0485 and we’ll give you a realistic timeline for your specific roof.
A typical asphalt shingle roof replacement in Westminster costs $9,800 to $18,500 depending on roof size, pitch, material grade, and decking condition. Flat roof replacement runs $12 to $22 per square foot. The final price depends on what we find during tear-off, but our estimates include a set per-sheet price for decking replacement so you know the worst case upfront. Call (855) 382-0485 for a free written quote.
Yes, we install and service roofs from both CertainTeed and Owens Corning, along with products from IKO, Atlas, and three other major manufacturers. Our roofing-only focus means we’re trained on each brand’s installation specs and warranty requirements, and we register every new installation with the manufacturer. Call (855) 382-0485 to discuss which product fits your home and budget.
If you have an active leak from storm damage or fallen debris, we prioritize urgent roof replacement and repair calls in Westminster. We can often get a crew out for a temporary tarp the same day and schedule the permanent fix as soon as materials arrive. Call (855) 382-0485 and let us know what’s happening, and we’ll tell you honestly how fast we can be there.
Every roof replacement we install in Westminster includes the manufacturer’s material warranty plus our written workmanship warranty. Manufacturer warranties vary by brand and product line, and we register all installations so the coverage is active. If a workmanship issue ever comes up, we return and fix it. Call (855) 382-0485 and we’ll explain the warranty for the specific system you choose.
Clear the driveway so we have room for material delivery and debris disposal, and move vehicles away from the drop zone during tear-off. Inside, roof replacement causes vibration, so remove fragile items from walls and ceiling-mounted shelves. We handle everything else, including tarps around the foundation and a full magnetic sweep for nails. Call (855) 382-0485 and we’ll send a short prep checklist before your job starts.
Schedule Your Roof Replacement Service in Westminster Today
If your roof is leaking, shedding granules, or simply past its expected life, the fastest way to get a straight answer is a free inspection from Select Roof Repair. We’ll walk your roof, show you photos of what we find, and give you a written line-item quote with no obligation. Call (855) 382-0485 to schedule your free estimate, or ask for Noel Carrasco directly and he’ll be the one on your roof.
Written by Noel Carrasco, Owner at Select Roof Repair, serving Westminster since day one.