Tile roofing
Architectural shingles
Metal 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 Orange County Homeowners
A full roof replacement in Orange County is a serious five-figure decision, and most homeowners only make it once or twice in a lifetime. If you’re wondering how much roof replacement costs, we make it simple to find out. That’s exactly why Tilehurst Roofing Orange County was built the way it was: no vague estimates, no crews that ghost you after the deposit, and no surprises when the bill arrives. We’re part of the Kingswell family of roofing companies, founded in 2000, and led here locally by Greg Holloway. Every roof replacement starts with a written price in your hands before any work begins, and every job is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right for a full year. When you’re ready to talk numbers, call (559) 295-5445 and a live person answers, day or night.
Key Takeaways
- Roof replacement in Orange County typically runs $12,000 to $28,000 for a standard asphalt shingle roof on a 1,500 to 2,500 square foot home, with material grade, roof pitch, and tear-off complexity driving most of the variance.
- You get a written price before work starts. Always. That is not a promotional offer; it is how we operate, and it’s part of the Kingswell Guarantee.
- Material choice is real choice here. We install from seven manufacturers, including IKO, Atlas, and Tamko, so the product fits your home and your budget, not what’s already loaded on our truck.
- Every replacement carries a written guarantee delivered before the crew leaves, not mailed three weeks later.
- A live person answers every call, 24/7. Evenings, weekends, holidays. No voicemail queue. That’s a Kingswell standard.
Styles & brands we work with
Roof Installation
Roof Installation is the complete build of a new roofing system, whether that’s on a brand-new structure or as a full replacement of an existing roof that has reached the end of its service life. In Orange County, homeowners typically pursue a full installation when the existing roof is 20 to 30 years old, when multiple leak repairs have proven the underlayment is failing, or when a home addition requires tying new roofing into the old. Tilehurst Roofing Orange County handles every phase of the installation: tear-off, decking inspection and repair, underlayment, flashing, the finish material itself, and the final walkthrough. A full new asphalt shingle roof installation on an average Orange County home generally runs $12,000 to $22,000, though larger homes, steep pitches, and premium materials can push that to $28,000 or more.
Full System Replacement
We don’t install shingles over failing decking or compromised underlayment. When we do a roof installation in Orange County, the old material comes off, and we inspect the wood decking underneath. Rotted or water-damaged sheets get replaced before a single new shingle goes down, so you’re paying for a roof that actually lasts, not a cosmetic cover-up.
New Construction Roofing
If you’re building an ADU, a garage, or a full addition, the roof has to tie into the existing structure correctly, especially where new framing meets old. Our crews install from the decking up, with proper drip edge, new flashing at every transition, and a finish that matches or complements your home’s existing roof. The written price you get before work starts covers the full scope, so there’s no surprise change order when the framing inspection reveals something the last contractor ignored.
Roof Replacement Contractor
A Roof Replacement Contractor is the company that tears off the old roof and installs a complete new system, and in Orange County, choosing the right one is the single most consequential decision in the whole project. The wrong contractor disappears mid-job, discovers “unexpected” costs once the old roof is gone, or goes silent when a leak shows up six months later. Tilehurst Roofing Orange County operates under the Kingswell Guarantee, which means the written price you get up front is the price you pay, the guarantee is in writing before the crew leaves, and if anything fails inside the first year under our 365-Day Done Right Promise, we return and make it right at no charge. Most full replacements in Orange County run $12,000 to $28,000 depending on home size, material, and tear-off scope.
What Separates a Real Contractor
A real roofing contractor pulls the permit when one is required, passes inspections, and leaves you with documentation of both. Our technicians are background-checked and uniformed on every job, so you always know who is on your roof and why, and Greg Holloway personally walks the finished work with homeowners who want to see what’s up there.
Written Price, Before Anything Starts
The single biggest source of roofing horror stories in Orange County is the verbal estimate that becomes a locker-room handshake that becomes a “revised scope” at the halfway point. We hand you a written, line-itemed price before any work begins. That document includes tear-off, dump fees, decking replacement if needed, underlayment, flashing, the finish material, and the guarantee terms. You read it, you sign it, and that’s the number.
Asphalt Shingle Roof Replacement
Asphalt Shingle Roof Replacement is the most common full-roof project in Orange County, and for good reason: architectural asphalt shingles are durable, fire-resistant, and reasonably priced compared to tile or metal. They’re also the material our crews install most frequently across Fullerton, Mission Viejo, Lake Forest, and the rest of the county, so we know the local failure patterns, the wind zones, and the right underlayment for our climate. A standard asphalt shingle replacement for a 1,500 to 2,500 square foot single-story home typically runs $12,000 to $20,000, with premium architectural shingle lines from IKO or Atlas pushing toward the higher end. Tilehurst Roofing Orange County installs full systems: shingles, ridge cap, drip edge, flashing, and a quality underlayment layer, not just shingles nailed to decking.
Architectural vs. Three-Tab
Most Orange County homeowners are better served by architectural shingles, which are thicker, handle wind better, and last longer than three-tab. They cost more per square, but the lifespan difference usually makes them the cheaper roof over 20 years. We’ll show you samples and real installed pricing for both before you commit to anything.
Underlayment Matters as Much as Shingles
In our climate, the underlayment is doing a huge share of the waterproofing work, especially during the winter rain months. A shingle roof is only as good as what’s under it. We install a proper synthetic underlayment with correct overlap and fastener pattern, and we document it with photos so you can see the full system before it’s covered.
New Roof Installation
New Roof Installation refers to building a roof where none existed before, or replacing an entire system so completely that the only thing remaining from the original is the framing. In Orange County, this typically means new construction projects like ADUs, home additions, or a full replacement where the old roof was so compromised the decking had to be replaced in large sections. Tilehurst Roofing Orange County handles new roof installation from the first sheet of decking to the final piece of ridge cap, with permits pulled and inspections passed where required. New roof installation costs in Orange County start around $15,000 for a smaller single-story home and run upward of $30,000 for larger homes or premium material selections.
Built from the Decking Up
When we install a new roof, we’re building the entire weatherproofing assembly, not just the top layer. That means new decking where needed, a properly vented attic or roof cavity, full underlayment, all new flashing, and the finish material you chose with your written price in hand. You’ll see photos of every layer before it’s closed up.
Permits and Inspections
Where Orange County municipalities require permits for a new roof installation, we pull them and handle the inspection process. You’re not left navigating a county inspector’s schedule on your own, and your roof is never installed in a way that quietly skips a required inspection. The final paperwork and inspection sign-off are handed to you at the end of the job.
Reroofing
Reroofing is the process of installing a new roof covering, either by tearing off the existing material (called tear-off reroofing) or, in some limited cases, by installing a second layer over the original shingles where local code permits it. In Orange County, most homeowners need a full tear-off reroofing job, because the existing roof is at the end of its life and you don’t want to trap failing decking under a new surface. Tilehurst Roofing Orange County almost always recommends tear-off reroofing, and for good reason: you get a full inspection of the decking, a clean surface for underlayment, and a roof that actually meets the manufacturer’s warranty requirements. Reroofing a typical Orange County home runs $12,000 to $22,000, with flat roof reroofing often falling between $9,000 and $18,000 depending on system type and size.
Tear-Off vs. Overlay
Overlaying is cheaper and faster, but it assumes the old roof is still doing its job underneath, which is usually the exact thing that needs to be verified. We’ll show you what’s actually under your current shingles before you decide. In most Orange County homes we inspect, the underlayment is compromised and an overlay would be a 15-year mistake costing more than a proper tear-off.
When Reroofing Beats Re-Decking
If your roof framing is sound and the decking is dry, a full reroofing is the most cost-effective path to a 25- to 30-year roof. We won’t sell you decking replacement you don’t need. The written estimate separates the line items clearly, so you know exactly what’s being replaced and why.
Flat Roof Replacement
Flat Roof Replacement is the removal and complete rebuild of a low-slope roofing system, common on mid-century Orange County homes, additions, garage roofs, and some townhouse styles. Flat roofs fail differently than pitched roofs: they rely on the membrane itself to shed water, and even small installation errors can mean standing water that eventually finds its way inside. Tilehurst Roofing Orange County replaces flat roofs with properly sloped, correctly flashed systems, typically using modified bitumen, TPO, or PVC membrane depending on the home and the homeowner’s budget. Flat roof replacement in Orange County generally runs $9,000 to $18,000 for a typical garage or single-level addition, with larger residential flat roofs running higher.
Membrane Selection
Each membrane type has real trade-offs: TPO reflects heat well and handles our sun, modified bitumen is forgiving and repairable, and PVC is the premium choice for longevity. We’ll explain the options in plain language and show you actual installed costs for each, not just a spec sheet. The material you pick is decided before work begins and written into your price.
Slope and Drainage Correction
A flat roof that pools water after every rain will fail early, no matter what membrane goes on top. We correct slope with tapered insulation or a cured-compound fill where needed, and we make sure the scuppers and drains actually move water off the roof. If your current flat roof leaks every winter, the fix is almost never just patching; it’s getting the water off the field of the roof.
Brands We Service
We install and service full roofing systems from seven manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That range exists so you get the product that fits your home, your climate, and your budget, not a single house brand that happens to be in stock.
We regularly recommend IKO architectural shingles for homeowners who want a high-quality dimensional look at a competitive installed price, and we’ve installed their Cambridge line across Anaheim and Irvine with excellent field results. Atlas shingles carry a strong wind warranty and a broad color range, which makes them a frequent choice for homes in exposed ridgeline areas where gusts matter. For homeowners seeking a premium asphalt shingle with a distinctive profile, Tamko offers lines we’ve installed on homes in Yorba Linda and Fountain Valley that still look clean a decade later. Whether you have one of these brands or any other make, we can replace your roof correctly and back it in writing.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Water stains on ceilings or walls. By the time water shows up inside, it has already worked through the roof surface, underlayment, and decking. A stain that grows after rain means the failure is active, and the damage is compounding with every storm.
- Granules collecting in gutters. Asphalt shingles shed granules as they age and lose their protective surface. If your downspouts are full of dark grit, the shingles are breaking down, and the roof is in the last phase of its life, even if it still looks fine from the street.
- Visible daylight in the attic. Go into the attic on a sunny day and look up. If you can see light through the roof decking or around vents, water can get in through those same openings. This is a clear sign the roof needs replacement rather than another repair.
- Missing, curling, or cracked shingles. Shingles that are curling at the edges or cracking are no longer sealing properly. One or two is a repair. A roof face full of them means the material has failed across the field, and patching becomes a losing game.
- Soft spots or sagging. If the roof surface feels spongy underfoot or you can see a visible dip from the ground, the decking underneath has likely absorbed water and lost structural strength. That condition only gets worse, and it can become a safety issue for anyone walking the roof.
Our Process, Step by Step
- 1
The inspection and written estimate. Greg Holloway or a senior technician walks your roof, photographs every section, and checks the attic, flashing, and existing ventilation. You receive a written, line-itemed price with no obligation, and the inspection findings are explained in plain language.
- 2
Material selection and contract. You choose your shingle or membrane, color, and ventilation approach. We write the full scope into the contract, including the 365-Day Done Right Promise, the written guarantee terms, and the exact start date window.
- 3
Tear-off and decking inspection. The old roof comes off in sections, and we inspect the decking underneath. Any rotted or water-damaged sheets are replaced and shown to you in photos. We don’t cover up structural issues and hope for the best.
- 4
System installation. Underlayment goes down with proper overlap, drip edge and flashing are installed at every transition, and the finish material is applied per the manufacturer’s installation spec, not our own shortcut. Our crews are uniformed and background-checked, and you’ll know who is on your roof at every step.
- 5
Final walkthrough and guarantee delivery. We walk the finished roof with you where accessible, document the completed system with photos, and hand you the written guarantee before the crew leaves the property. The worksite is cleaned and magnet-swept for nails the same day.
How Much Does Roof Replacement Cost in Orange County?
A typical asphalt shingle roof replacement on a 1,500 to 2,500 square foot single-story Orange County home runs $12,000 to $22,000. Larger two-story homes or homes with steep pitches and cut-up roof lines typically run $18,000 to $28,000. A flat roof replacement on a garage or addition usually falls between $9,000 and $18,000 depending on the membrane you choose and whether slope correction is needed. What drives most of the variance is material grade (a premium architectural shingle from IKO or Atlas costs more per square than standard three-tab), roof complexity (valleys, dormers, chimneys, and pipe penetrations all add labor), and the condition of the decking underneath. The way to avoid overpaying in Orange County is not to chase the lowest bid. It’s to get a written, line-itemed estimate that shows exactly where your money goes, and to work with a contractor who won’t change the price once the old roof is off. Our free estimates include the full written scope, so you can compare real numbers against real numbers, not a marketing brochure.
Our Service Area Near Orange County
Tilehurst Roofing Orange County provides roof replacement across the county, including Roof Replacement in Anaheim and Roof Replacement in Irvine, plus Fullerton, Mission Viejo, Lake Forest, Yorba Linda, Fountain Valley, Rancho Santa Margarita, San Juan Capistrano, Laguna Hills, and Ladera Ranch. Typical response times for an estimate visit run two to four business days, and our 24/7 live answer means you can reach us evenings or weekends. If you’re outside these areas, call and ask; we may still be able to help.
Serving Orange County, CA - Our Local Coverage Area
We’re based in the Orange County 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 Orange County
Roof replacement is the complete removal of your existing roof system, from shingles or membrane down to the decking, followed by the installation of a new underlayment, flashing, and finish material. It is different from a roof repair, which addresses a specific area. In Orange County, a full replacement is the right call when the roof has reached the end of its useful life or when multiple failures across the roof field make continued patching more expensive than starting over.
Most single-family asphalt shingle replacements in Orange County take two to four working days from tear-off to final cleanup. Larger homes, steep pitches, flat roof systems, or significant decking replacement can add a day or two. Weather delays happen, especially in the winter rain months, and we’ll communicate any schedule change directly. Call (559) 295-5445 for a more specific timeline for your home after an inspection.
Asphalt shingle roof replacement in Orange County typically runs $12,000 to $22,000 for an average single-story home, with larger or more complex homes running $18,000 to $28,000. Flat roof replacement usually falls between $9,000 and $18,000. Your exact number depends on material, roof pitch, decking condition, and home size. We give you a written price before any work starts, and that number doesn’t change once the old roof comes off.
Yes. We install and replace full roofing systems from seven manufacturers, including IKO, Atlas, and Tamko, along with GAF, CertainTeed, Owens Corning, and Boral. The material choice is yours, and we’ll show you actual installed pricing for each so you can compare. Whether your current roof is one of these brands or something else entirely, we can replace it correctly and back the work in writing.
We answer every call with a live person 24 hours a day, 7 days a week, and we can schedule urgent assessments when a roof failure is active and water is entering your home. A full roof replacement is not a same-day job; it requires tear-off, inspection, and installation, but we prioritize homes with active leaks. If your roof has failed, call (559) 295-5445 and we’ll get someone out to assess the damage and put temporary protection in place when needed.
Every roof replacement from Tilehurst Roofing Orange County carries a written guarantee, delivered to you before the crew leaves, not mailed afterward. The guarantee is backed by our 365-Day Done Right Promise: if anything is not done right, we return and make it right at no charge for a full year after the job. Manufacturer warranties on materials run separately, and we’ll explain exactly what each covers before you choose your shingle or membrane.
Clear the driveway area where our trailer and materials will stage, move vehicles away from the work zone, and remove fragile items from walls inside the home, since hammering can send vibrations through the structure. We’ll cover landscaping with tarps and clean the property with a magnetic nail sweep at the end of each day. If you have attic access, we’ll need to get in and out during the decking inspection, so keep that path clear. For a free estimate and exact pricing, call (559) 295-5445.
Schedule Your Roof Replacement Service in Orange County Today
If your roof in Orange County is near the end of its life, you deserve a written price before work starts, a crew that shows up when we say, and a guarantee in writing that means something. Call (559) 295-5445 today and schedule your free estimate. A live person answers 24/7, and the estimate is a full written scope, not a ballpark. Call now.
Written by Greg Holloway, Owner at Tilehurst Roofing Orange County, serving Orange County since 2000.