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 Castle Hills
Roof repair in Castle Hills usually costs between $380 and $1,400 for most shingle, flashing, and leak work, with larger storm-damage or low-slope repairs running $1,500 to $4,200. We serve the entire Castle Hills area, from the neighborhoods off Loop 410 to the quiet streets around Castle Hills Village and the properties west of Blanco Road. Grant Whitlock leads our Castle Hills crews, and every tech who arrives at your door is background-checked, photo-badged, and someone you’ll know by name before they knock.
Castle Hills has its own permit office, and that changes how roof repair gets done here. We handle those permits for you. Call (254) 276-4369 and ask for your free estimate. A real person answers, any hour.
Why Mercer Roofing Co San Antonio Is Castle Hills’s Preferred Roof Repair Company
Homeowners in Castle Hills call us because we show up the way we say we will. Before any technician arrives, you get their name and photo. At the door, they present a photo ID badge. That’s the Threshold Verified standard, and it’s non-negotiable on every visit. Grant Whitlock holds our crew to it, and our Castle Hills customers tell us that’s the reason they stopped dreading the doorbell.
Founded in 2000 and part of the Threshold Group family, Mercer Roofing has built its Castle Hills reputation on written prices and written guarantees. Every repair, from a small vent boot replacement to a full low-slope reroof, comes with a 365-Day Done Right Promise. If it’s not right within a year, we make it right, and a second visit is free. No asterisks.
Scheduling and dispatch are coordinated from the brand’s Dallas-Fort Worth office, while our crews serve Castle Hills locally. That means you get the backing of a larger organization without losing a local tech who knows Castle Hills’ permitting process and housing stock.
Styles & brands we work with






Storm Damage Roof Repair in Castle Hills
Storm Damage Roof Repair in Castle Hills starts with a careful inspection of what South Texas hail and wind actually did to your shingles, flashings, and decking. Castle Hills sits in hail alley, and we see homes with impact bruising, missing granule patches, and lifted starter strips after almost every spring storm. A typical storm repair in Castle Hills runs $450 to $1,800 for shingle replacement and flashing work, while a full storm reroof on a mid-century ranch can reach $8,500 to $16,000 depending on square footage and low-slope sections.
Hail and Wind Inspection
We document every impact mark, lifted shingle, and split seam. If you’re filing an insurance claim, our written findings go straight to your adjuster. We don’t inflate damage and we don’t miss what’s there. Either way, you get an honest, itemized picture before any work is ordered.
Emergency Tarp and Board-Up
When a storm opens your roof over a bedroom on a Castle Hills night, you need covering fast. We can tarp and secure a damaged section to stop water intrusion, then return with the permanent repair once materials arrive. Tarp service typically runs $300 to $600 in Castle Hills, and it buys you time to do the real fix right.
Metal Roof Repair in Castle Hills
Metal Roof Repair in Castle Hills focuses on low-slope metal sections, aging standing-seam panels, and the screwed-down metal roofs you see on some 1970s-era homes and patio covers around town. The South Texas sun expands and contracts metal panels daily, which works screws loose, wears out neoprene washers, and causes oil-canning and leaks at the laps. Expect to pay $500 to $2,200 for typical metal repair on a Castle Hills home, depending on whether we’re replacing fasteners, resealing seams, or cutting out and replacing a rusted panel section.
Fastener and Seal Replacement
Loose fasteners are the most common metal roof failure we see in Castle Hills. We pull and replace screws with new washer assemblies, then reseal laps and penetrations with a metal-rated sealant. It’s straightforward work, but it needs to be done systematically, not as a patch. Most Castle Hills metal repair jobs are done in a single visit.
Rusted Panel Section Replacement
When a panel is rusted through or creased by a falling limb, patching won’t hold. We order a matching panel, cut out the damaged section, and install new metal with proper underlayment at the seams. We’ll give you a written price before the metal is ordered.
Trusted Brands We Service in Castle Hills
We install and repair roofs using manufacturer-recognized materials: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Castle Hills specifically, we keep GAF and CertainTeed shingle stock on hand because they match the majority of the mid-century and 1980s-era homes here. Owens Corning impact-resistant lines are a frequent request after hail season. Whatever brand is on your Castle Hills roof, we can match it and repair it without waiting on a cross-country shipment for most common lines.
Common Roof Repair Problems We See in Castle Hills Homes
- Failing torch-down on low-slope sections: Many Castle Hills homes built in the 1960s through 1980s have low-slope additions or patio covers with original built-up roofing. UV exposure and ponding water crack the membrane, water chases under the seams, and the decking rots from the top down.
- Skipped starter strip and drip edge on mid-century reroofs: A lot of these older Castle Hills reroofs were done fast and cheap. Without proper starter strip at the eaves, the first row of shingles lifts in South Texas wind-driven rain and blows off.
- Undersized attic ventilation on 1960s-1980s ranches: Castle Hills has block after block of ranch-style homes with soffit vents that don’t move enough air. Deck temperatures spike, architectural shingles crack and shed granules years early, and roofers keep patching shingles without ever addressing the ridge vent or soffit airflow.
- Leaks at penetrations and valleys: Pipe boots, vent boots, and valley flashings take the brunt of Castle Hills sun and storm cycles. Rubber gaskets dry-rot, valley metal corrodes, and water finds the nail holes. We see these leaks on homes along every major corridor in Castle Hills, from the older sections near Loop 410 to the larger custom builds around Newbury Terrace.
See the difference
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AfterPricing for Roof Repair in Castle Hills, TX
Here’s what Castle Hills homeowners can expect to pay for common repairs. A vent boot replacement runs $180 to $350. Flashing repair at a chimney or valley runs $350 to $900. A leak repair with decking replacement runs $500 to $1,200. Low-slope torch-down patch work runs $600 to $1,800 per section. Full shingle replacement on a small Castle Hills ranch starts around $7,500 and goes up from there. The biggest cost drivers are whether decking has rotted, whether your low-slope sections need full replacement, and what the Castle Hills permit office requires for your specific scope. We give you a written, line-item price before any work begins. Call (254) 276-4369 for your free estimate.
We Also Serve Cities Near Castle Hills
Our crews regularly handle Roof Repair work in San Antonio, Schertz, Cibolo, and Boerne. If you’re just outside Castle Hills, call us anyway. We’ll tell you honestly whether we can reach your street and when. Most of the surrounding area is well within our service range.
Serving Castle Hills, TX - Our Local Coverage Area
We’re based in the Castle Hills 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 Castle Hills
Yes, in most cases Castle Hills requires a permit for roof repair, even spot repairs, because the city runs its own building department separate from San Antonio. We file the permit with the Castle Hills permit office before work starts, and we schedule the required inspection after. Skipping this step is the quickest way to get a stop-work order on your Castle Hills repair. We handle the paperwork and the inspection scheduling for you, and the permit cost is listed on your written quote. Call (254) 276-4369 and we’ll confirm what your specific repair needs.
Low-slope sections under about 2:12 pitch should not be shingled, and Castle Hills inspectors will flag shingles on a low-slope roof. These sections need a membrane system like torch-down or modified bitumen, or a standing-seam metal panel, depending on the pitch and the existing structure. Many Castle Hills homes have exactly these low-slope sections over additions, carports, and patio covers, and a lot of them were incorrectly shingled decades ago. We’ll tell you what the slope allows and what the Castle Hills inspector will accept before we quote it. Call (254) 276-4369 for a free estimate that accounts for your roof’s actual pitch.
Ask to see the line items. Our Castle Hills quotes list every material and every labor step separately: decking replacement per sheet, underlayment, drip edge, starter strip, vent boots, valley metal, pipe collars, ridge vent, and permit fees. If the decking is rotted, the price changes, and you’ll see exactly how. We don’t write “roof repair” as one vague number. We write what we’re doing, what it costs, and what the 365-Day Done Right Promise covers. Call (254) 276-4369 and we’ll go over a sample quote format with you.
No, Castle Hills does not require impact-resistant shingles to pass inspection. But after the hail storms Castle Hills gets, many homeowners upgrade to Class 4 impact-resistant shingles from Owens Corning or CertainTeed because they hold up better and can reduce future insurance premiums. If your current shingles are standard three-tab or basic architectural, a hail repair might be the right moment to upgrade. We’ll show you the price difference in writing and let you decide. Call (254) 276-4369 for a free hail-damage inspection.
Castle Hills runs its own permit office and inspection schedule, and the city’s close-inspection checklist means the inspector may look at decking, underlayment, and flashing before we can close up. That adds a day or two compared to some San Antonio jobs. It’s not a bad thing. It’s a stricter process that catches bad work. We plan for it on every Castle Hills job, and we’ll tell you at the start exactly how long your specific repair should take. Call (254) 276-4369 for a timeline on your roof.
Contact Mercer Roofing Co San Antonio for Your Castle Hills Roof Repair
You’ll get a written price before any work starts. You’ll get the name and photo of the technician before they arrive. They’ll present a photo ID at the door, in a clean uniform, and they’ll treat your home like the place you live, not a job site. Call (254) 276-4369 now to schedule your free Castle Hills roof repair estimate. A live person answers, 24/7.
Written by Grant Whitlock, Owner at Mercer Roofing Co San Antonio, serving Castle Hills with written prices, written guarantees, and the Threshold Verified standard on every visit.