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 Roofing Company Across Leon Valley
Most roofing problems in Leon Valley give you warning signs before they turn into a ceiling stain or a wet attic. Curled shingles along Evers Road, granules collecting in gutters off Huebner, a soft spot near the chimney on a 1972 ranch. That’s when you call a roofing company. Mercer Roofing Co San Antonio serves Leon Valley with written pricing before any work starts, background-checked technicians who arrive with photo ID, and a 365-day guarantee on every repair. Call (254) 276-4369 for a free estimate.
We know what these older Leon Valley roofs look like once we pull back a few shingles. Original decking from the 1960s and 1970s that’s delaminated under years of trapped moisture. Flashing that’s separated at the valleys. Decking nails that have backed out and now telegraph through the shingles. These are the things a hailstorm turns into a full insurance claim, and the things a thorough roof inspection catches before a small leak becomes a re-deck job.
Why Mercer Roofing Co San Antonio Is Leon Valley’s Preferred Roofing Company
Homeowners in Leon Valley tell us the same thing, often the same week after a storm rolls through: they want a Roofing Company that treats their house like a place where someone lives. Not a job number. That’s why we send every technician’s name and photo before the visit. The person who rings your doorbell will match the photo on your phone, and they’ll show you a photo ID badge before they step inside.
We’re part of the Threshold Group family, founded in 2000. Our Leon Valley customers deal with the same realities year after year: hail storms off the Balcones Escarpment, 100-degree summers that bake asphalt shingles, and subdivisions where nearly every home on the block was built between 1960 and 1985. When a crew opens a roof on an old ranch house off Bandera Road, we know what we’re likely to find. That local knowledge is why the written price we hand you before work starts is the price you pay at the end. No change orders unless you approve them in writing first.
Grant Whitlock leads our crew, and he holds every technician to the Threshold Verified standard: background-checked, identity-verified, uniformed, and dispatched under the quality framework each Mercer location is contractually held to. A live person answers our phone 24/7. No voicemail. No call-back form.
Key Takeaways
- Leon Valley requires its own city-issued roofing permit before work begins.
- We inspect decking before we quote a roof replacement in Leon Valley.
- Every repair includes a written 365-day guarantee and a free second visit if it fails.
- Your technician’s name and photo are sent to you before they arrive.
- Written price before any work starts. Always.
Styles & brands we work with






Roof Inspection in Leon Valley
A roof inspection in Leon Valley typically costs $150 to $350 for a standard single-family ranch home, and it’s the single most useful step a homeowner can take before filing a hail claim or buying an older house in this city. Leon Valley’s housing stock skews heavily toward 1960s – 1980s ranch and one-story traditional homes, many sitting on gently pitched roofs with original asphalt shingles and decking that’s now 40 to 60 years old. An inspection gives you a documented, photo-backed record of what’s failing and what’s still sound.
After a hailstorm, we see the same pattern across the older subdivisions off Evers Road: roofing crews on nearly every block, often tearing off entire roofs before insurance adjusters even arrive. Our advice is the opposite. Get an inspection first. Let us document exactly what the storm did versus what was already deteriorating. A clean inspection report keeps an insurance claim honest and keeps the adjuster from attributing hail damage to normal wear.
What we look for on Leon Valley ranch homes
We start at the decking. On a 1972 ranch off Evers Road, our crew opened a hail-damaged roof to find the original 3/8-inch plywood decking had delaminated under years of trapped moisture. We documented the damage for the homeowner’s adjuster, then replaced the failed sections, added a full ice and water shield in the valleys, and stepped up to GAF architectural shingles with the proper starter strip before the city inspector arrived. That’s the difference between a roof that passes inspection and one that gets red-tagged.
We also check ventilation, flashing at every penetration, gutter aprons, and the soffit and fascia. On these older Leon Valley homes, rusted drip edge and failing fascia are common, and they directly affect how the roof sheds water at the eave.
When a Leon Valley homeowner should schedule an inspection
Before you buy a home in this city. After any storm with hail larger than a dime. When you see granules collecting in your gutters or bald patches on south-facing slopes. And before you let anyone quote you a replacement over the phone without first looking at what’s under the shingles.
Commercial Roofing in Leon Valley
Commercial roofing in Leon Valley is a different animal from residential work. Flat and low-slope commercial roofs, common on the retail strips along Bandera Road and the office buildings near the city’s small commercial core, need membrane systems that handle ponding water, thermal expansion, and foot traffic. Mercer Roofing Co installs and repairs these systems with the same written pricing discipline we bring to every residential job.
For a small commercial roof in Leon Valley, a repair typically runs $400 to $1,800 depending on the membrane type and the size of the failed area. A full flat roof replacement on a smaller commercial building can range from $8,000 to $25,000. These are real ranges, but every structure is different, and we’ll give you a written number after a site visit.
Flat and low-slope membrane systems
We service TPO, EPDM, and modified bitumen systems. These roofs fail differently than asphalt shingle roofs. Instead of broken shingles, you get seam separation, blisters, punctures from foot traffic, and ponding water that accelerates membrane deterioration. On low-slope sections common on older Leon Valley ranch homes, proper ice and water shield at the valleys does the work that regular underlayment can’t.
Commercial inspections and maintenance programs
We offer documented annual inspections for commercial clients so small issues don’t become emergency re-roofs. Twice-a-year visual checks catch things like failed sealant at penetrations, open laps, and clogged drains before they leak into a tenant space.
Trusted Brands We Service in Leon Valley
We install and repair shingle roofs using manufacturer-recognized brands that include GAF, CertainTeed, and Owens Corning. What that means for Leon Valley homeowners is material that meets Bexar County wind uplift standards, warranty support that actually pays out, and shingles we can source quickly when a hail claim moves fast. We stock common components for these older ranch homes: starter strip, drip edge, valley metal, and flashing. When you need a repair off Huebner, we’re not waiting on a parts shipment from two states away. The materials go on your roof this week, not next month.
See the difference
Before
After
Before
After
Before
AfterCommon Roofing Company Problems We See in Leon Valley Homes
- Delaminated decking on original 1960s and 1970s plywood. Years of attic moisture from poor ventilation weakens the wood from below. When a hail claim opens the roof, the decking crumbles and must be re-decked before the city will pass the final inspection.
- Rusted drip edge and fascia on aging ranches. The metal at the eave was never designed to last 50 years. Once the old shingles come off, the rust is obvious, and a quote that excluded drip edge is suddenly short by $800 to $1,500.
- Low-slope valley failures on gently pitched roofs. Water moves slower on shallow slopes and sits longer at the valleys. Without proper ice and water shield, the underlayment rots and leaks into the interior.
- Skip-the-inspection underbids from storm chasers. A roofer quotes a number without ever pulling back a shingle to check the decking. The price looks good. Then the project starts and the “surprise” re-deck change order appears. We write decking allowances into our quotes so this never happens.
Pricing for Roofing Company in Leon Valley, TX
A full roof replacement on a typical Leon Valley ranch home runs $9,500 to $16,000 for an architectural asphalt shingle roof, assuming standard decking and no structural surprises. A roof repair in this city typically runs $350 to $900. A roof inspection runs $150 to $350. These are the ranges we quote for Leon Valley’s housing stock: one-story ranches from the 1960s through 1980s, most between 1,200 and 2,200 square feet, with shallow to moderate slopes. What moves the number is decking condition, the number of roof penetrations, and whether the soffit, fascia, and drip edge need replacement. We write those allowances into the contract. You’ll know before we start. Call (254) 276-4369 for a written quote.
| Service | Typical Leon Valley Range |
|---|---|
| Roof inspection | $150 – $350 |
| Roof repair | $350 – $900 |
| Full shingle replacement (architectural) | $9,500 – $16,000 |
| Commercial flat roof replacement | $8,000 – $25,000 |
| Drip edge and fascia replacement | $800 – $1,800 |
We Also Serve Cities Near Leon Valley
Our crews regularly handle roofing projects across the northwest side of Bexar County and beyond. If you’re in San Antonio, Schertz, Cibolo, or Boerne, Mercer Roofing Co covers those areas with the same written pricing and Threshold Verified technicians. For more on our broader service area and what we do, see Roofing Company in Leon Valley.
Serving Leon Valley, TX - Our Local Coverage Area
We’re based in the Leon Valley 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 Leon Valley
Yes. We pull the city-issued permit for every re-roof in Leon Valley, and we schedule the inspections. Leon Valley’s final inspection can hinge on evidence that the original 1960s decking was properly re-nailed or replaced to meet current Bexar County wind uplift codes. We document everything, from decking photos to re-nailing patterns, so the inspection passes the first time. Call (254) 276-4369 and we’ll walk you through the process.
Yes, and we’ll do it before we quote, not after we start. We lift a few shingles and inspect the decking at the eaves, valleys, and penetrations. If we find delamination or rot, we write a decking allowance into the contract. You’ll know what the re-deck could cost before you sign anything. If we can’t see the decking without pulling the roof, we write a contingency figure in writing, not as a verbal promise.
We install full-width ice and water shield in every valley and along every eave on low-slope sections. These older Leon Valley ranches hold water longer after a rain, especially at the valleys, and standard underlayment isn’t enough. We also lay starter strip along the entire eave and install the correct flashing at roof-to-wall intersections. If the slope is shallow enough to warrant a modified bitumen membrane at a porch or addition, we’ll tell you and quote it separately. Call (254) 276-4369 for an exact scope.
No. Wait for the adjuster, and have your own documented roof inspection in hand before they arrive. We photograph everything: hail strikes, granule loss, broken shingles, and any decking damage we can see from the attic. Then we document what’s storm damage versus normal wear on a 50-year-old roof. The adjuster sees a file that’s already built, and you’re not relying on the insurance company’s report alone. We’ll meet adjusters on-site if you want us to.
Both. On most Leon Valley ranch homes, the soffit and fascia are original to the home and have the same 50 years of weather exposure as the roof. We’ll inspect them when we come out, and if they need replacement, we’ll include the line item in your written quote before any work starts. Rusted drip edge and rotten fascia will compromise a new roof at the eave, and replacing them after the shingles are on costs more than doing it at the same time. Call (254) 276-4369 for a free estimate with a full scope.
Written by Grant Whitlock, Owner at Mercer Roofing Co San Antonio, serving Leon Valley since 2000.