Metal roofing
Architectural shingles
Tile roofing
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Westminster
Roof replacement in Westminster typically runs $8,500 – $14,500 for a standard single-story ranch home with architectural asphalt shingles, and most tear-off jobs finish in two to four days once permits clear. We serve every Westminster ZIP code, from the 1950s tracts south of Bolsa Avenue to the newer developments west of Beach Boulevard. If you’re in Westminster and your roof is nearing the end of its life, call (866) 942-4187 for a free estimate and we’ll walk the roof with you, line by line.
Why Orange County Roofing Co Is Westminster’s Preferred Roof Replacement Company
Westminster homeowners keep calling us because we don’t come in pushing one brand. We carry seven major manufacturers, including GAF, Atlas, and Tamko, so the conversation starts with your roof’s condition and your budget, not with whatever we’re incentivized to sell. Our Roof Replacement team has worked on hundreds of the post-WWII ranch homes that define Westminster’s housing stock, and we know what’s under those shingles before we lift the first one.
Kurt Hensley, our owner, built the company on straight answers. When a Westminster customer asks whether to re-roof over existing shingles or tear off, we tell them what the decking inspection shows and what Owens Corning service in Westminster standards and the City of Westminster will require. That’s the whole pitch. No scare tactics, no upsells you don’t need.
We also understand who we’re working with in Westminster. The Vietnamese-American community here, especially around Little Saigon, often makes roofing decisions as a family. Multiple generations sit at the table. We’re comfortable working that way, and we can provide bilingual English/Vietnamese estimates when that makes the decision easier for everyone involved.
Styles & brands we work with
Reroofing in Westminster
Reroofing in Westminster usually means tearing off the old layered shingles rather than nailing a second roof over the first. The older tracts around Little Saigon have homes from the 1950s through the 1970s, and by now many carry two or three courses of asphalt shingle because owners re-roofed over existing layers to save money years ago. The City of Westminster doesn’t permit unlimited layering, and three courses add real weight to a roof structure that wasn’t designed for it. A full tear-off and replacement on a Westminster ranch typically runs $8,500 – $12,500 depending on square footage and decking repairs.
Tear-Off and Decking Inspection
When we tear off to the decking on a Westminster home, we’re looking for dry rot at the eaves, water-stained sheathing around penetrations, and gaps where old flashing has failed. On many of the older Little Saigon tract homes, the original decking is still solid but the plywood edges at the rake have rotted from decades of exposure. We replace any damaged decking before anything new goes down.
Permits and Layered Shingle Removal
Westminster requires a permit for roof replacement, and the city will not sign off on new shingles over multiple layers. We pull the permit ourselves, schedule inspections, and make sure the final pass happens before we call the job done. Homeowners who’ve never re-roofed often don’t know their house carries two or three layers until we show them the cross-section at the eave.
Flat Roof Replacement in Westminster
Flat roof replacement in Westminster usually comes up on the low-slope sections over patio enclosures, garages, and room additions that were tied into the original gable roofs. These flat sections are the first place leaks show up in winter rain, especially where the flat roof dead-ends into a stucco wall and the flashing was never reworked after the addition went up. A flat roof replacement in Westminster typically runs $3,500 – $7,000 depending on the size of the section and the membrane system you choose.
Tied-In Flat Sections Over Additions
Westminster’s older homes accumulated additions over decades. A 1963 ranch house might have a family room pushed out the back in 1985 and a patio enclosed in 1998, each with its own flat roof at a slightly different height. Those transitions are where valleys and flashing fail. When we replace the roof, we reconcile those planes so water actually drains somewhere instead of pooling at the seam.
Low-Slope Membrane Options
For the low-slope areas, we typically recommend modified bitumen or single-ply membranes depending on the existing deck and pitch. The point is that a flat section on a Westminster addition doesn’t get the same treatment as the main roof. It needs a membrane system, not shingles, and the transition between the two has to be flashed properly or the whole roof fails at the seam.
Trusted Brands We Service in Westminster
We install GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral because no single manufacturer makes the right shingle for every Westminster roof. A homeowner in a newer tract near Springdale and Westminster Boulevard might want the clean architectural profile of a GAF Timberline, while someone in an original 1958 ranch in the 92683 ZIP with a stucco exterior needs something that handles the solar gain without curling. We stock local inventory for the Westminster market and can usually get materials on site within a few days of the contract signing. Roof Replacement in Westminster customers sometimes ask if we push one brand. We don’t. We pull samples, explain the warranty differences, and let you decide.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Westminster Homes
- Builder-grade shingles wearing out before the decking. On the newer tracts west of Beach Boulevard, the original three-tab shingles fail from UV exposure long before the underlayment or sheathing gives out, so homeowners replace the visible layer without ever checking what’s underneath. When we do a full replacement, we inspect everything, not just the shingle surface.
- Ridge caps lifting during Santa Ana wind events. Westminster gets hit with dry Santa Ana winds a few times a year, and aged ridge caps are the first thing to go. Once they lift, winter rain works under the shingles at the ridge and into the attic.
- Leaking flashings at patio enclosure transitions. In the Little Saigon-area tracts, many homes have enclosed patios or added rooms that tie into the original roof. The valley and wall flashings where the new plane meets the old were often done cheaply and leak during the first real rain.
- Layered shingles hiding a compromised deck. Homes from the 1950s and 1960s that were re-roofed in the 1980s and again in the 2000s often carry two or three courses of shingle. Westminster code requires a full tear-off when the deck needs attention, and we’ve found rotted plywood under the third layer more times than we can count.
Pricing for Roof Replacement in Westminster, CA
Here’s what Westminster homeowners can expect to pay. A full tear-off and architectural shingle replacement on a 1,200 – 1,600 square foot ranch runs $8,500 – $12,500. Larger split-levels and two-story homes from the 1970s typically land between $12,000 and $16,000. Newer master-planned homes on the west side with builder-grade three-tabs often fall on the lower end of the range, but if the homeowners want to upgrade to architectural shingles, that adds $1,500 – $2,500. Decking replacement runs $2.50 – $3.50 per square foot when rot or water damage turns up. Every estimate is free, and we give you a written line-item quote before any work starts. Call (866) 942-4187 to schedule yours.
We Also Serve Cities Near Westminster
Orange County Roofing Co serves all of Westminster and the surrounding communities. If you’re in Midway City, Garden Grove, Stanton, or Huntington Beach, the same team that works in Westminster handles your roof. We’re based in Corona but we’re in Westminster regularly, and our Westminster customers know they can reach us without a long wait. Call (866) 942-4187 and ask for Kurt if you want to talk through what your roof needs.
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.
FAQs About Roof Replacement in Westminster
Yes, for most Westminster homes, architectural shingles are the better investment. They cost $1,500 – $2,500 more on a typical ranch, but they carry longer manufacturer warranties, handle UV exposure better, and add a dimensional look that suits the stucco ranch style. Builder-grade three-tabs from the 1990s and early 2000s often fail at the 15 – 18 year mark; architectural shingles from GAF or Atlas routinely last 25 – 30 years with proper ventilation. Call (866) 942-4187 for a side-by-side comparison on your specific roof.
Replacing the roof itself doesn’t void the builder’s structural warranty, but the work needs to be done correctly and documented. What can affect your builder’s coverage is if the replacement roof changes the structure, the ventilation, or the drainage in a way the original design didn’t account for. We’re careful to match or improve the original ventilation and drainage, and we keep all photos and inspection records so if a structural issue comes up later, you have the paperwork. We’ve worked on plenty of newer Westminster homes under builder warranty and the work passed every time.
Most of the newer master-planned communities in Westminster do require HOA architectural review before a roof replacement, especially if you’re changing shingle color or style. The process usually means submitting the manufacturer’s spec sheet, the shingle color sample, and the contractor’s license information. Our team handles that paperwork for you. We’ve submitted for HOA approvals all over Westminster, and we know how to present the application so it doesn’t drag out for weeks. Get in touch at (866) 942-4187 and we’ll start the HOA process on your behalf.
Older Little Saigon-area homes often have multiple shingle layers, and Westminster building code won’t let us re-roof over them. A full tear-off to the decking is standard, and we pull the permit with the City of Westminster before any work starts. The city inspector checks the decking, the underlayment, and the final shingle installation. We’ve found dry rot and failed flashings under those old layers on many houses in the 92683 ZIP, and fixing those before the new roof goes on is the whole point of doing the job right. We also offer bilingual estimates if you’re making the decision with family members who prefer Vietnamese. Call (866) 942-4187 to schedule an inspection.
Yes. Many Westminster households make roofing decisions with parents, adult children, and sometimes grandparents all involved, and we’re glad to provide written estimates in both English and Vietnamese. Our team can walk the roof with whoever needs to be there, explain the scope in both languages, and answer questions from every generation at the table. Just ask when you call (866) 942-4187 and we’ll arrange it for your estimate appointment.
Westminster’s housing stock has a specific character: 1950s-through-1970s ranch homes in the older tracts, newer master-planned communities on the west side, and the room additions and patio enclosures that define the Little Saigon neighborhoods. In one recent job on a stucco ranch near Little Saigon in the 92683 ZIP, we tore off three layered courses of asphalt shingle down to the original decking, replaced dry-rotted fascia at the rake, and rebuilt a tied-in low-slope section over a patio enclosure that had been leaking at the flashing. We finished with GAF architectural shingles, new underlayment, drip edge, and a ridge vent, then pulled the final inspection through the City of Westminster building department. That’s the work this city’s roofs actually need, and we do it every week.
If you’re in Westminster and you’re looking at a roof replacement, start with a real inspection. We’ll tell you honestly what your roof needs – nothing more. Call (866) 942-4187 to schedule your free estimate.
Written by Kurt Hensley, Owner at Orange County Roofing Co, serving Westminster and Orange County since day one.