Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Orange
Brennan Roofing is a roofing company serving Orange, CA with written pricing, background-checked crews, and a one-year guarantee on every job. We work throughout Orange, from the Craftsman bungalows of Old Towne to the ranch-style tracts east of the 55 Freeway. If you need roof repair, full replacement, or an inspection, call (361) 320-9467 and a live person answers, 24/7. You’ll get a straight answer about what’s wrong, what it costs, and when we can get on your roof.
We know what Orange roofs go through: Santa Ana winds funneling through the canyon, decades-old tile-over-shingle layers in the historic district, and city design review rules most roofers never mention until it’s too late. That local knowledge is the difference between a roof that lasts and one that fails the next time the wind blows.
Why Brennan Roofing Is Orange’s Preferred Roofing Company
Homeowners in Orange call us because we put the price in writing before any work starts. Not a ballpark. Not an estimate that moves when the crew shows up. A fixed number on paper. That’s The Garrison Standard, and it applies to every job we do in Orange, whether it’s a small leak repair off Katella Avenue or a full tear-off in Old Towne.
Every technician who steps onto an Orange roof is background-checked and arrives in uniform. You know exactly who is on your property. That matters when you’re letting a crew work above your family’s home, and it’s a level of accountability most roofing companies in Orange County simply don’t offer.
We also answer our phones. Call (361) 320-9467 at 2 a.m. with a leak from a winter storm and you’ll speak to a person, not a voicemail. Scheduling and dispatch for our Orange crews is coordinated from our Los Angeles office, but the team that shows up is local to Orange and knows the city’s building codes and historic district requirements.
Our Roofing Company team backs every repair and installation with the 365-Day Done Right Promise. If it’s not done right, we make it right, in writing, at no charge for a full year. That’s the guarantee, stated plainly.
Roofing Contractor in Orange
A roofing contractor in Orange handles everything from small leak repairs to complete tear-offs and replacements, and the job usually costs between $6,500 and $18,000 depending on roof size, pitch, material, and how many layers need to come off first. Old Towne properties with clay tile over original wood shingles tend to run at the higher end because the tear-off is more involved and historic design review adds a step most other cities don’t require.
Full Tear-Off and Replacement
When the existing roof has multiple layers, as many older Orange homes do, we don’t roof over it. We strip everything down to the decking, inspect for rot and sagging, replace damaged wood, and build the roof back from scratch. That’s the only way to catch hidden failure before it leaks into your ceilings. In Old Towne, we also coordinate with the city’s historic preservation review so the material change is approved before we order anything.
Structural Repair and Decking
Sagging ridge lines and soft decking are common in Orange homes where clay tile was installed over wood shingle decades ago. The added weight stresses the framing and rots the substrate underneath. We replace the damaged decking, reinforce where needed, and install a roof that meets current code without the dead load that caused the problem in the first place.
Commercial Roofing in Orange
Commercial roofing in Orange covers low-slope and flat roof systems on retail buildings, office parks, warehouses, and apartment complexes throughout the city, and the work typically runs between $9,000 and $45,000 depending on square footage, membrane type, and access. Buildings near the 57 and 22 freeways take constant wind and sun exposure, which accelerates membrane wear and makes regular inspection worth the cost.
Low-Slope Membrane Systems
Most commercial buildings in Orange use TPO, PVC, or modified bitumen membranes. We install and repair all three, and we match the system to the building’s use. A warehouse off Batavia Street needs a different membrane than a dental office plaza near the Orange Circle, and we price them accordingly.
Preventative Maintenance Programs
Commercial roofs fail slowly, then all at once. We offer scheduled inspection and maintenance plans for Orange property owners who want to catch seam failures and ponding water before they become interior damage. The price is set in writing, visits are documented, and any repair we flag comes with a line-item quote before we touch the roof.
Trusted Brands We Service in Orange
We install materials from the manufacturers Orange homeowners ask for by name, including GAF, Atlas, and Tamko. Each brand has strengths: GAF’s Timberline line is a workhorse for ranch-style homes in quiet neighborhoods, Atlas offers strong wind-rated options for Santa Ana wind corridors, and Tamko’s Heritage series holds up well on moderate slopes. We stock common parts and underlayment locally so turnaround on repairs in Orange stays fast, and we explain the material differences in plain language before you ever sign a contract.
Common Roofing Company Problems We See in Orange Homes
- Clay tile over original wood shingles in Old Towne. Decades of added weight sag the ridge and rot the decking beneath. The fix is a structural tear-off, not another layer on top.
- Santa Ana wind uplift on architectural shingles. Gusts through the Santa Ana Canyon exceed 60 mph, and shingles rated for 130 mph fail when installed with the wrong nailing pattern. We nail to the manufacturer’s wind spec, every time.
- Historic design review triggered too late. Changing a visible roof material in the Old Towne district requires city approval first. Skipping that step can force a stop-work order and a costly redo.
- Hidden rot from winter rain intrusion. Orange’s occasional heavy winter storms expose leaks that have been developing for years. By the time water shows up inside, the decking is often already compromised.
Pricing for Roofing Company in Orange, CA
Here’s what Orange homeowners can expect. Roof repairs run $450 to $1,800 for typical flashing, vent, or shingle work. Full replacements on a 1,500-square-foot ranch home run $8,000 to $14,000 with architectural shingles. Old Towne tear-offs with tile removal and decking repair run $12,000 to $22,000. Commercial low-slope work starts around $9,000 and goes up from there. The variables are tear-off depth, decking condition, roof pitch, and whether design review applies. We put the exact number on paper before any work starts, and that number does not move. Call (361) 320-9467 for a free estimate.
We Also Serve Cities Near Orange
Our crews work throughout central Orange County. Beyond Orange, we regularly serve Santa Ana, Villa Park, Tustin, and Garden Grove. If you’re in a neighboring city and need the same written pricing and one-year guarantee we provide in Orange, call us and we’ll schedule a walkthrough.
Serving Orange, CA - Our Local Coverage Area
We’re based in the Orange 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 Roofing Company in Orange
Yes, if the visible roofing material changes in the Old Towne historic district, the city requires design review approval before any work begins. This applies even to color changes on some homes. We handle the paperwork and sequencing so approval doesn’t stall your project. Call (361) 320-9467 and we’ll check your address against the district boundaries.
Santa Ana winds funnel through the canyon and hit Orange with dry gusts over 60 mph, lifting shingles, tiles, and flashing. The biggest failure point is nailing: a shingle rated for 130 mph wind only reaches that rating when nailed to the manufacturer’s specified pattern. We verify the nailing pattern as part of every replacement in Orange’s wind corridors.
No. The original wood shingle beneath the tile is usually rotted or sagging under the added weight. In our experience, these roofs need a full structural tear-off: remove tile and shingle layers, replace damaged decking, and install a Class A fire-rated system that restores the shingle look without the tile weight. We’ve done this exact job on homes along North Grand Street in Old Towne.
We price by the square, where one square is 100 square feet of roof area, but we don’t stop there. The quote also includes tear-off depth, decking repairs, flashing, underlayment, drip edge, ventilation, and any design review coordination. That full line-item breakdown goes on paper before work starts, and it does not move. Call (361) 320-9467 and we’ll walk the roof and give you the number.
We install GAF, Atlas, and Tamko, among others. The right brand depends on your roof’s slope, wind exposure, and whether you’re in the historic district. We’ll explain the trade-offs of each in plain English and recommend one based on what your house actually needs. Estimates are free.
If you own a home in Orange and you’re tired of roofers who no-show or change the price at the door, call Brennan Roofing at (361) 320-9467. We’ll schedule a free estimate, put the number in writing, and stand behind the work for a full year. That’s the standard, and it’s the same on every job.
Written by Travis Oakley, Owner at Brennan Roofing, serving Orange since the company’s founding in 2000.






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