Metal roofing
Architectural shingles
Tile roofing
GAF
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across Baytown
Roof repair in Baytown typically runs $325 – $1,900 depending on what failed, and our crews at our Roofing Company in Baytown serve every neighborhood from Bay Oaks to Lakewood. We coordinate scheduling and dispatch from our Houston office, but the technicians who show up at your door are the same background-checked, uniformed crew you’ll see on any Brennan job in Baytown. If you’re chasing a leak or a missing shingle, call (940) 461-8481 and a live person answers, any hour. Written price in hand before any work starts, always.
Baytown is not an easy place to keep a roof intact. Galveston Bay sits to the south, refinery stacks line the horizon to the east, and the same humid air that rusts your patio furniture works on your roof flashing year-round. We’ve repaired enough roofs here to know exactly what fails first. This page tells you what that is and what it costs.
Why Brennan Roofing Co Houston Is Baytown’s Preferred Roof Repair Company
We’re an independently owned member of the Garrison Partners family, founded in 2000, and we operate every Baytown job under the same Garrison Standard. That means the price goes on paper before we touch the roof, the technician is background-checked and in uniform, and every repair carries the 365-Day Done Right Promise: if it’s not done right, we make it right, in writing, at no charge.
Baytown homeowners don’t need another roofer who quotes one number on the phone and another at the front door. We hear that story on half our estimates in Bay Oaks, Lakewood, and along Decker Drive. Our answer is a line-item written quote that doesn’t move once the job starts. The materials get sourced from manufacturers we trust, including GAF, Owens Corning, and Atlas, and you choose with real options explained plainly, not jargon.
Our Roof Repair team knows Baytown roofs because we’ve walked them. We know which slopes catch the refinery wind. We know what 60-year-old decking looks like under a leaking valley. That’s the advantage of a local crew backed by a named, written standard instead of a franchise invoice.
Styles & brands we work with






The Baytown Corrosion Problem: Why Your East Slope Fails First
Here’s something you won’t read on a generic roofing site: on Baytown homes, the east and southeast roof slopes degrade faster than the rest of the roof. Not occasionally. Consistently. Prevailing winds off Galveston Bay carry corrosive particles from the refinery corridor, and they settle on the slope that faces them. The visible result is accelerated granule loss on shingles and rust blooming on flashing and exposed nail heads within 10 to 15 years.
We see this pattern in Baytown in a way we don’t see it inland. A roof that should last 25 years might need its flashing replaced at year 12. A galvanized nail that would survive 30 years in Katy rusts through in half that time near the ship channel. If your Roof Repair in Baytown inspection starts with the west slope, your roofer doesn’t know this town.
Commercial Roof Repair in Baytown
Commercial Roof Repair in Baytown deals with flat and low-slope buildings along Decker Drive and the industrial corridors where ponding water, debris load, and membrane failure shorten roof life. Older commercial structures with metal roofing or built-up tar-and-gravel systems need periodic patching, seam repair, and drain clearing. Typical commercial repair in Baytown runs $800 – $3,400 depending on membrane type and penetration count, with coating and edge-metal work on the upper end.
Low-Slope Membrane Patching
We patch TPO, EPDM, and modified bitumen, but first we find where water is actually entering, which is not always where it shows up on the ceiling. On Baytown commercial roofs, corner scuppers and curb penetrations are the usual suspects. We inspect before we quote.
Metal Roof Seam and Flashing Repair
Metal roofs along the ship channel rust at exposed fasteners and lap seams. We replace corroded screws, reseal long runs, and reflash penetrations with marine-grade sealants so the repair lasts more than a couple of seasons.
Roof Leak Repair in Baytown
Roof Leak Repair in Baytown starts with finding the actual entry point, which on a windy, rain-driven coastline is frequently not the wet ceiling stain. Water travels before it drops. On 1950s – 1980s ranch homes in Bay Oaks and Lakewood, the original valleys and pipe jacks were often installed without ice and water shield, which means bay wind pushes rain up under the shingles and into the deck. Expect to pay $375 – $850 for a typical leak repair, more if decking replacement is required.
Valley and Pipe Jack Failures
Valley leaks on older Baytown homes usually mean the metal valley liner is rusted through or the shingles were cut short. Pipe jacks fail at the rubber collar where the sun and salt air have cooked the seal. We replace the whole assembly, not just caulk over it.
Decking Rot From Long-Term Seepage
When a leak has run for months, the decking underneath goes soft. We can usually tell from the attic or a test cut whether the sheathing needs a section replaced. That adds about $80 – $120 per sheet, and you’ll know before we start, not after.
What We Specify Instead: Coastal-Spec Hardware
On a 1970s ranch in Bay Oaks, we pulled off a roof where the original galvanized nails on the southeast slope had rusted through the shingles, allowing water into the decking. We stripped it to the sheathing, replaced the rotten decking, and reinstalled with stainless steel fasteners and a marine-grade synthetic underlayment before laying GAF architectural shingles. That’s the difference between a landlord patch and a roof that outlasts the next two hurricane seasons.
In Baytown, we default to stainless or hot-dip galvanized fasteners on any repair near the coast or in line with refinery winds. Flashing gets upgraded to heavier gauge aluminum or stainless where it will be hit with corrosive exposure. Sealant joints get marine-grade polyurethane, not the cheap tube from the big box store. The coastal-spec package costs about 10 – 15% more on materials. It’s the cheaper option over a decade.
Trusted Brands We Service in Baytown
We install and repair materials from Owens Corning, IKO, Atlas, and Tamko, and we offer Owens Corning service in Baytown, and we stock the most common shingle colors and profiles in our Houston warehouse for fast turnaround on Baytown jobs. That matters when a windstorm knocks a section off and you need a repair that matches without waiting two weeks for a special order. We spec the right brand for the slope and exposure, not just whatever’s on sale.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Baytown Homes
- Baytown east and southeast slope corrosion – Galvanized nails and flashing on refinery-facing slopes corrode within 10 – 15 years. Shingles loosen first at the edges, then water gets in. The fix is stainless hardware, every time.
- Valley leaks on 50s – 80s ranch homes – Original roofs in Bay Oaks and Lakewood often lack a continuous water barrier in valleys. Bay wind pushes rain sideways, and without that barrier, water finds the gaps. We add ice and water shield when we repair the valley.
- Low-slope carport and addition failures – Older Baytown homes frequently have flat or near-flat additions that hold water and debris. Decking rots from the top down, and the membrane fails at the seams. We repair the membrane and fix the drainage slope where possible.
- Rusted flashing and vent boots – Galveston Bay air and refinery particles eat standard flashing quickly. We see rusted step flashing around chimneys and vent boots with cracked rubber collars on nearly every older Baytown roof we inspect.
Pricing for Roof Repair in Baytown, TX
Here’s what Baytown homeowners should expect to pay for typical repairs. Shingle replacement runs $325 – $650 for a small section, more for steep slopes or hard-to-reach sections. Flashing repair lands at $400 – $900 depending on length and access. A flat roof patch runs $550 – $1,200, and vent boot replacement is usually $275 – $450. Valley repairs run $500 – $1,100 when we’re cutting out old metal and resetting the liner. Leak repairs with decking replacement can reach $1,500 – $1,900. The price you get on paper is the price you pay, no surprises at the door.
Call (940) 461-8481 for a free estimate with a written line-item quote.
We Also Serve Cities Near Baytown
Brennan Roofing Co Houston handles roof repairs across Baytown and the surrounding communities including Highlands, Seabrook, Galena Park, and Webster. The same live-person scheduling, written pricing, and uniformed crews apply in every one of them.
Serving Baytown, TX - Our Local Coverage Area
We’re based in the Baytown 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 Baytown
Prevailing winds off Galveston Bay carry corrosive particles from the refinery corridor and deposit them on east and southeast-facing surfaces. That exposure causes granule loss and fastener rust on those slopes years before the rest of the roof. We check those slopes first on every Baytown inspection.
The material cost difference is about 10 – 15%, which works out to $50 – $150 on a typical repair. The expensive part is the cheap inland spec: galvanized hardware that rusts in a decade and forces a second repair. Call (940) 461-8481 and we’ll quote both options in writing so you can compare.
Stainless steel or, at the minimum, hot-dip galvanized. Standard electro-galvanized nails corrode quickly in the salt air, especially on east and southeast slopes. We default to stainless on every coastal Baytown job because the fastener is the cheap part of the system and the expensive part when it fails.
In most cases we can repair the affected slope if the rest of the roof is sound. We strip the damaged section, replace the decking if needed, reflash with stainless or marine-grade metal, and match the shingle as closely as possible. If the majority of the roof is failing, we will tell you honestly and quote both repair and full replacement.
At least once a year, and ideally in spring before hurricane season. Baytown’s environment is harder on roofs than most of Harris County, and an early catch on a small rust pocket costs a few hundred dollars while a missed one becomes a full re-roof. We’ll schedule your free inspection when you call (940) 461-8481.
Contact Brennan Roofing Co Houston
If your Baytown roof is leaking, missing shingles, or showing rust on the east slope, don’t wait through another heavy rain. Call (940) 461-8481 and a live person answers, 24/7. You’ll get a free estimate and a written price before any work starts. That’s the Garrison Standard, on every job, in every Baytown neighborhood.
Written by Travis Oakley, Owner at Brennan Roofing Co Houston, serving Baytown under the Garrison Standard.