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 Grand Prairie
Roof repair in Grand Prairie typically costs between $350 and $1,200 for common fixes like shingle replacement, flashing repair, and leak sealing, with more involved structural work running higher. Most repairs on Grand Prairie homes take one day or less once we’re on site. If you’ve spotted a water stain on your ceiling or granules collecting in your gutters, call (432) 302-5605 and we’ll send a technician whose name and photo you’ll see before he ever rings your doorbell.
We know Grand Prairie’s roofscape because we work in it every week. From the steep-pitched architectural shingles on Grand Peninsula homes to the aging composition shingles near the city core, our crews understand what fails here, why it fails, and how to fix it without creating new problems. That local knowledge matters when a spring thunderstorm rolls through and suddenly half your street has blue tarps on the roof.
Why Mercer Roofing Co Dallas Is Grand Prairie’s Preferred Roof Repair Company
We built our reputation in Grand Prairie on something most roofers never mention: who actually shows up at your door. Every Mercer technician is background-checked, identity-verified, and arrives in a clean, marked uniform with a photo ID badge. Before the visit, we send you the technician’s name and photo. That’s the Threshold Verified standard, and every independently owned Mercer location is contractually held to it. It matters when you’re home alone, when your kids are napping, or when you simply don’t want to wonder about the stranger knocking.
Grand Prairie homeowners also tell us they appreciate the written price. You get one before any work starts, every time, no exceptions. Not an estimate with “maybe” language. A written price. And every repair carries a 365-Day Done Right Promise: if it’s not right within a year, we make it right, with a free second visit included if a repair fails. Roof Repair is what we do every day, and we do it with paperwork that protects you.
Grant Whitlock leads our team, and he’s built the business around a simple idea: a roofing company should act like a guest in your home, not a contractor who shows up when he feels like it. That’s why a live person answers our phone 24/7. No voicemail. No call-back form. When you call (432) 302-5605 at 2 a.m. because water is coming through the ceiling, a human picks up.
Styles & brands we work with






Flat Roof Repair in Grand Prairie
Flat Roof Repair in Grand Prairie is most common on the 1960s-to-1980s single-family homes near the city core, where low-slope and hip roofs dominate and standing water after heavy spring thunderstorms accelerates decking rot. These older roofs were often built with composition shingles over wood decking that Grand Prairie’s summer heat dries, cracks, and weakens over time. We find leaks around penetrations, deteriorated flashing at the parapet walls, and granule loss so heavy you can see bare asphalt patches from the ground.
A typical flat roof patch on a Grand Prairie home runs $450 to $900, depending on the square footage and whether we’re replacing just the membrane or the decking beneath it. If the standing water has been pooling for years, the decking often needs sections replaced, which pulls the job toward the higher end. We write the price before we start, and it doesn’t change once work begins.
Flat Roof Leak Sealing and Membrane Repair
We repair the membrane itself rather than just coating over the problem. On Grand Prairie flat roofs, we commonly find punctures from HVAC technicians, sealant failure around vent pipes, and alligator cracking from UV exposure. The fix starts with a dry patch, then a proper membrane bond, then new flashing where the roof meets any vertical surface.
Low-Slope Roof Drainage and Water Pooling
Standing water is the enemy of every flat roof in Grand Prairie. If your roof holds water for more than 48 hours after a storm, we’ll address the drainage, not just the leak it caused. Sometimes that means adding crickets or slope at problem areas, sometimes it means a full membrane replacement if the decking has already been compromised. We’ll show you photos of what we find, so you’re never paying for a fix you can’t see.
Shingle Roof Repair in Grand Prairie
Shingle Roof Repair in Grand Prairie usually comes down to hail damage, wind blow-off, or flashing failure around chimneys, skylights, and pipe penetrations. Most homes here were roofed with composition shingles from GAF, CertainTeed, or Owens Corning, and the intense North Texas sun wears them down faster than the manufacturer’s warranty suggests. Granule loss shows up in your gutters first. Missing shingles show up after the next storm.
We price shingle repairs by the scope of the damage. Replacing a single torn or hail-damaged shingle runs $125 to $250. Repairing flashing around a pipe penetration costs $200 to $400. A full valley repair, where two roof planes meet and water channels hard, runs $500 to $1,100. If hail took out a whole slope, we’ll give you a line-item price for that, not a vague “roof repair” charge.
Shingle Replacement After Hail and Wind Damage
After a Grand Prairie hail storm, we replace individual shingles, whole tabs, or entire slopes depending on what the insurance adjuster documented. We work directly with your insurance claim and use shingles that match your existing roof profile. On newer homes in master-planned communities, that match matters because HOAs here enforce shingle color and profile. Our crew replaced the flashing around six pipe penetrations on a steep-pitched architectural shingle roof in a Grand Peninsula home after a spring thunderstorm caused leaks. We reused the existing GAF shingles where possible, added new ice and water shield at the valleys, and reinstalled the drip edge to match the original nailing pattern so the builder warranty stayed intact.
Flashing and Valley Repair on Steep-Pitched Roofs
Flashing is the most overlooked failure point on any Grand Prairie roof. On steep-pitched architectural shingle roofs, especially in newer subdivisions near Joe Pool Lake, faulty flashing at valleys and penetrations sends water into the home long before shingles fail. We repair, replace, and reseat flashing so water flows off the roof instead of into your attic. You’ll get the written guarantee on this work just like any other repair, good for 365 days.
Trusted Brands We Service in Grand Prairie
Mercer Roofing installs and repairs shingle brands that manufacturers recognize: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. In Grand Prairie, Atlas and IKO architectural shingles are common on newer homes in the master-planned communities, while older neighborhoods near the city center still carry original CertainTeed or Owens Corning composition shingles from decades past. We stock matching components locally, which means your repair doesn’t wait on a special order from a warehouse in Ohio. That’s how we get Grand Prairie roofs sealed fast, with a brand match your HOA will accept.
Common Roof Repair Problems We See in Grand Prairie Homes
- Builder-grade underlayment failure on newer master-planned homes. In Grand Peninsula and similar developments, homes built in the last 10 to 15 years often have underlayment that degrades within 5 to 7 years under Grand Prairie’s intense summer heat. The shingles still look fine, but leaks start anyway. We replace the underlayment, not just the visible shingle.
- Hail impact damage on composition shingles. Grand Prairie sits in hail alley. After a big storm, you can drive down Lake Ridge Parkway and spot the roofing crews by the pattern of blue tarps on homes that haven’t been repaired yet. Hail leaves dents in shingles that turn into leaks within a year or two if not addressed, and most insurance policies have a 12-month window for filing a claim.
- Standing water and decking rot on low-slope roofs. Older 1960s-to-1980s homes near the city core often have low-slope roofs where water pools after spring thunderstorms. The weight and long exposure rot the decking beneath the shingles, and by the time a leak shows inside, the structural damage is already underway. We replace the rotted decking, not just patch over it.
- HOA compliance issues on newer homes. In Grand Prairie’s master-planned communities, HOA architectural rules restrict shingle color and profile. Homeowners who replace without prior approval risk fines and forced re-roofing. We photograph and document your existing shingle profile before any work begins, then match it or work with your HOA’s approved list so the repair doesn’t land you in an architectural-review headache.
See the difference
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AfterPricing for Roof Repair in Grand Prairie, TX
Here’s what you can actually expect to pay for common repairs in Grand Prairie. Shingle replacement runs $125 to $250 per shingle or small section. Flashing repair around a pipe, valley, or chimney runs $200 to $400. Flat roof patches run $450 to $900. Valley repair with new ice and water shield runs $500 to $1,100. If the decking beneath any roof section has rotted, add $300 to $800 depending on square footage. These are real numbers from our Grand Prairie jobs, not national averages. Every job gets a written price before work starts, and that price doesn’t change once we begin. Call (432) 302-5605 for a free estimate, and we’ll come out, inspect, and put the exact figure on paper.
We Also Serve Cities Near Grand Prairie
Mercer Roofing Co Dallas serves homeowners throughout the mid-cities and eastern metroplex. If you live in Grand Prairie or a neighboring community, we can help. Our crews regularly handle roof repair in Duncanville, Dallas, Grapevine, and Richardson. Same Threshold Verified standard, same written price before work starts, same live person answering the phone. Call (432) 302-5605 and we’ll schedule your free estimate wherever you are in the area.
Serving Grand Prairie, TX - Our Local Coverage Area
We’re based in the Grand Prairie 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 Grand Prairie
No, not if the repair follows the original installation specifications. A builder warranty is voided by improper installation, not by using a licensed third-party contractor. We photograph the original nailing pattern, match the shingle profile and color to the builder’s spec, and reinstall flashing and drip edge exactly as the builder did, so the warranty stays intact. We’ve done this repeatedly on Grand Peninsula homes. If your warranty has specific requirements, bring us the paperwork and we’ll document our work to match it. Call (432) 302-5605 to talk through your specific situation.
Look for three things from the ground: granules collecting in your gutters or at the base of downspouts, dents visible on metal flashing or roof vents, and shingles that appear darker or shinier in patches where the asphalt has been exposed. If your neighbors are getting roofs replaced, especially after a documented hail event, schedule an inspection. Our technicians use a drone and a ground-level assessment before ever putting a ladder on your roof, so you don’t have to climb anything. Call (432) 302-5605 and we’ll come out at no charge to check.
For most Grand Prairie homes, yes, especially if your current roof is nearing the end of its life or you’ve filed a hail claim in the last five years. Impact-resistant shingles from Atlas or IKO, common on newer homes near Joe Pool Lake, often earn a discount on your homeowners insurance premium and hold up measurably better in hail storms. The upgrade adds $1,500 to $3,000 over a standard architectural shingle roof, but the insurance savings and reduced repair frequency typically recover that within a few years. We’ll give you a line-item comparison before you decide. Call (432) 302-5605 for the exact numbers on your roof.
Flashing failure around pipe penetrations and valleys is the most common repair we do on older 1960s-to-1980s Grand Prairie homes. The original metal flashing has been baked by 40-plus years of Texas sun, corroded, and separated from the roof deck. Water gets in, runs along the rafters, and shows up as a ceiling stain far from the actual entry point. We replace the flashing and the sealant, inspect the decking beneath, and write the guarantee for 365 days. Call (432) 302-5605 if you’re seeing stains or peeling paint near your eaves.
Compare the line items, not the bottom line. A legitimate Grand Prairie roof repair quote specifies the exact square footage to be repaired, the materials to be used by brand and model, the flashing to be replaced or resealed, the underlayment condition, and the warranty terms in writing. If a quote says “roof repair, $800” with no detail, walk away. We give you a written, line-item price before any work starts, and that price doesn’t change. No change orders, no “we found additional damage” surprises at the end. If you want a second set of eyes on a competitor’s quote, call (432) 302-5605 and we’ll review it with you. Free.
Call Mercer Roofing Co Dallas for Your Grand Prairie Roof Repair
You deserve to know who’s coming to your door before they arrive. You deserve a written price before the first nail is driven. And you deserve a roof repair that’s guaranteed in writing for a full year. That’s exactly what we do in Grand Prairie, every day. Call (432) 302-5605 now, talk to a live person, and schedule your free estimate. We’ll send the technician’s name and photo before we come out, and you’ll get the full picture in writing before you commit to anything.
Written by Grant Whitlock, Owner at Mercer Roofing Co Dallas, serving Grand Prairie and the surrounding metroplex.