Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across Costa Mesa
Roof repair in Costa Mesa usually runs $400 to $1,800 for the jobs we see most, with shingle replacement on a sloped tract home landing around $650 to $1,100 and leak repair at flashing or valleys closer to $450 to $850. We dispatch crews from our Los Angeles office to Costa Mesa neighborhoods including Mesa Verde, College Park, and the Eastside, and we stock the materials this city’s housing actually needs. Call (559) 258-5703 for a written line-item quote before any work starts.
What makes Costa Mesa different from every city around it is the mix: ocean air eating flashings within two miles of the coast, and 1950s-70s tract homes inland baking under UV all summer. That combination means a leak you ignore in June becomes a Santa Ana wind problem by October. We know where the weak points are on these houses because we work on them every week.
Why Brennan Roofing Co Orange County Is Costa Mesa’s Preferred Roof Repair Company
Homeowners in Costa Mesa call us because we put the price on paper before a single nail comes out. No range at the door, no “we found more damage” that doubles the bill. Travis Oakley runs our Orange County operation the way he’s run roofing crews for years: background-checked technicians in uniform, a live person on the phone around the clock, and a written guarantee on every repair. That’s The Garrison Standard, and it’s the same on a $400 valley patch in College Park or a full replacement in Mesa Verde.
We work on tight Costa Mesa lots every week, the kind where the house sits six feet from the neighbor’s wall and the driveway barely fits a truck. Our crews stage equipment carefully, use plywood to protect driveways and planters, and clean up daily before we leave. We respect the city’s noise windows and we tell neighbors what’s happening before we start tearing off shingles next to their property line. That’s not a marketing line; it’s how we keep jobs running smooth in a city built this dense.
Styles & brands we work with






Metal Roof Repair in Costa Mesa
Metal Roof Repair in Costa Mesa deals with the specific ways coastal air and Santa Ana winds break down metal roofing systems. On the Eastside and Westside, we replace corroded standing-seam panels and re-secure flashing that’s lifted under wind load. Most jobs run $550 to $1,200 for localized panel repair, with full seam re-sealing around $1,500 to $2,400 depending on the roof’s size and pitch.
Seam and Fastener Repair
Standing-seam metal roofs fail at the seams first, especially near the coast where salt air accelerates corrosion on fasteners. We pull the affected fasteners, clean the seam, and re-fasten with gasketed screws before applying sealant. On roofs within two miles of the Pacific, we recommend checking fasteners every three to four years.
Panel Replacement and Coating Renewal
When a panel is dented beyond repair or corroded through, we cut and replace the affected section to match the existing profile. We also refresh protective coatings on metal roofs across Costa Mesa, which adds years before a full recoat becomes necessary. These jobs typically fall between $1,100 and $2,800 depending on square footage and access.
Commercial Roof Repair in Costa Mesa
Commercial Roof Repair in Costa Mesa means working around business hours, deliveries, and foot traffic near spots like South Coast Plaza, Bristol Street, and the 55 Freeway corridor. We handle flat-roof patching, membrane repair, and drainage fixes on low-slope commercial buildings throughout the city. Typical commercial repairs run $850 to $5,000 depending on the membrane type, roof size, and how early we catch the leak.
Flat Roof and Membrane Patching
Most commercial roofs in Costa Mesa are TPO, PVC, or modified bitumen, and the failure points cluster around drains, HVAC curbs, and penetrations. We patch the membrane with compatible material, weld or adhere it per spec, and verify the drain path is clear. A simple penetration patch usually lands between $850 and $1,600.
Drainage and Ponding Corrections
Flat commercial roofs pond water when drainage is undersized or blocked, and ponding shortens membrane life fast. We clear drains, adjust crickets, and add tapered insulation where needed to move water off the roof. Drainage correction runs $1,400 to $4,000 depending on the scope, and we schedule the work around your business hours.
Trusted Brands We Service in Costa Mesa
We install and repair materials from GAF, CertainTeed, Tamko, Boral, and Owens Corning, and for Costa Mesa homes we commonly use GAF Class A architectural shingles, certain Tamko composite lines for wildland-urban interface zones, and Boral for stone-coated steel where a homeowner wants metal with a traditional look. We keep common matching parts and shingles in local stock so a repair on a 1960s tract roof doesn’t wait two weeks on a special order. When you call, we’ll tell you honestly which brands match your existing roof and which make sense for Costa Mesa’s sun and marine air.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Costa Mesa Homes
- Corroded flashings near the coast: Ocean air eats galvanized flashing around chimneys, skylights, and ridge vents. By the time the rust is visible from the ground, water has usually been getting under the shingles for a season. We replace with heavier-gauge or aluminum flashing that holds up better within a few miles of the water.
- Algae on north-facing slopes: Marine layer moisture feeds algae and moss on shaded roof planes, and that growth accelerates granule loss and underlayment rot. We treat the affected area, replace damaged underlayment, and recommend the right shingle specification for Costa Mesa’s coastal moisture cycle.
- Leaks at valley intersections on 1960s tract homes: Original metal flashing in valleys on Mesa Verde and College Park homes wasn’t built to modern cool-roof code, and decades of thermal movement have opened seams. We strip the valley, replace the flashing with peel-and-stick membrane, and re-lay the shingles to current standards.
- Santa Ana wind damage to edges and vents: Santa Ana winds test drip edges, ridge vents, and hip caps on every roofline in Costa Mesa. After wind events, we do targeted inspections and re-secure loose edge details before the next rain finds the gap.
Pricing for Roof Repair in Costa Mesa, CA
What you’ll pay for roof repair in Costa Mesa depends on the size and position of the failure and how early we get to it. A small shingle patch runs $400 to $700. Leak repair at flashing or a vent boot lands $450 to $850. Valley repair with new membrane and shingles runs $900 to $1,800. A metal roof seam repair in a coastal neighborhood goes $550 to $1,200. The biggest variable in Costa Mesa is access: a roof reachable from a standard driveway with clear staging space costs less to work on than a two-story on a tight lot where we need to protect a neighbor’s property line. We’ll give you a written line-item price before any work starts. Call (559) 258-5703 for a free estimate; you’ll know the exact number on paper before you commit.
We Also Serve Cities Near Costa Mesa
Our crews work throughout the Costa Mesa area, including Roof Repair for nearby homeowners in Newport Beach, Santa Ana, Tustin, and Orange. The same written-price standard and 365-Day Done Right Promise apply everywhere we send a crew. Call us from any of those cities and you’ll get the same upfront numbers.
Serving Costa Mesa, CA - Our Local Coverage Area
We’re based in the Costa Mesa 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 Repair in Costa Mesa
Minor repairs like replacing a few shingles, sealing a penetration, or patching flashing typically do not trigger a permit in Costa Mesa, but any work that alters the roof assembly, changes the sheathing, or involves replacement of more than a small percentage of the roof plane usually does. We pull permits when the scope requires it, and we’ll tell you clearly before we start whether your repair crosses that line. Call (559) 258-5703 and describe what you’re seeing; we’ll explain the permit picture over the phone.
Yes, and we do it every week in neighborhoods like Mesa Verde and the Eastside. We stage trucks and dump trailers on the narrow driveway with plywood protection, keep tools and material off the property line, and clean up daily. If access requires putting a ladder or equipment near a shared wall, we notify the neighbor first and protect the area with padding. Your written quote includes the cost of careful staging, because it’s part of the job, not an afterthought.
Costa Mesa generally restricts construction noise to weekday daytime hours, typically 7 a.m. to 6 p.m. or similar, with tighter limits on weekends and holidays. We schedule tear-off and hammer work inside those windows and coordinate the noisier phases of the job to be as early and concentrated as possible. Your neighbors will appreciate knowing we’re following the rules, and so do we. Call (559) 258-5703 to schedule around your HOA’s hours if you have one.
If your home is in the Mesa Verde neighborhood or another part of Costa Mesa mapped in an updated wildland-urban interface zone, original wood shake or non-rated shingles may be required to be replaced with Class A fire-rated composite when you re-roof. We check the current code map for your address before quoting, and we explain whether a repair can keep your existing shingles or whether code requires an upgrade. Call us at (559) 258-5703 and we’ll check your street while you’re on the phone.
Yes. A single-story on a wide lot with a clear driveway prices out differently than a two-story on a tight Costa Mesa lot where we need extra staging, protection for a neighbor’s wall, or a specialty ladder to reach an upper slope. The quote reflects what we actually have to do to get on and off your roof safely and without damaging your property or anyone else’s. Get a free written estimate at (559) 258-5703 and you’ll see exactly what access costs on your specific address.
We handle roof repair across Costa Mesa, from the coastal air of the Eastside to the sun-baked tract streets of Mesa Verde and College Park. On a 1960s Mesa Verde lot, our crew replaced a failing wood shake roof with GAF Class A architectural shingles after stripping the decking to check for dry rot. We set up our truck and dump trailer on the narrow driveway with plywood protection, installed peel-and-stick ice and water shield in the valleys, and finished within the city’s weekday work-hour window. The neighbor thanked us for the daily cleanup. That’s the standard on every Costa Mesa roof we touch.
Call (559) 258-5703 to schedule your free estimate. A live person answers, the price goes in writing before any work starts, and every repair is guaranteed for one full year under the 365-Day Done Right Promise.
Written by Travis Oakley, Owner at Brennan Roofing Co Orange County, serving Costa Mesa under The Garrison Standard.