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
Trusted Roofing Company for Houston Homeowners
When a Houston roof starts leaking after a hard storm or the shingles begin to curl from the Gulf Coast sun, the question isn’t whether to fix it. The question is who to trust. Brennan Roofing Co Houston has been operating under The Garrison Standard since our founding: a written price before any work starts, background-checked uniformed technicians who arrive inside the promised window, and a 365-Day Done Right Promise that puts every guarantee in writing. If you’re looking for our Roofing Company in Houston that stands behind what it does, call (940) 461-8481 and talk to a live person, any hour, any day.
Roofing Contractor
A Roofing Contractor is a licensed professional who installs, repairs, and maintains roof systems on homes and commercial buildings. In Houston, that work includes everything from replacing a few missing shingles after a summer squall to tearing off and rebuilding an entire roof that has reached the end of its useful life. Brennan Roofing Co Houston handles all of it, and every job starts the same way: a written price on paper before any work begins. A typical shingle roof replacement in Houston runs from $8,500 to $18,000 depending on square footage, slope, and material, while smaller repairs usually fall between $350 and $1,200.
Replacement and Tear-Off
When decking is rotted or the existing shingle layer is too far gone to salvage, a full tear-off is the only honest fix. We strip the old roof down to the decking, replace any damaged sections, install new underlayment, and put down a fresh system that is guaranteed in writing for a full year. The price you see before the tear-off begins is the price you pay when the last nail goes in.
Storm and Leak Repair
Houston storms tear off shingles, compromise flashing, and push water into places it should not go. We find the actual source of the leak, not just the water stain on the ceiling, and repair it at the roofline. A repair call typically costs between $350 and $1,200, and the work is covered by the same written guarantee as a full installation.
Styles & brands we work with
Commercial Roofing
Commercial Roofing covers flat and low-slope roof systems on office buildings, warehouses, retail spaces, and multi-tenant properties. These roofs fail differently than residential ones: ponding water, failed seams on single-ply membranes, and neglected drainage are the usual culprits in the Houston area. Brennan Roofing Co Houston installs and repairs commercial systems built from manufacturers including GAF and Owens Corning, and every commercial job runs on The Garrison Standard. A flat commercial roof repair in Houston typically runs $450 to $2,500 depending on the size and nature of the leak, while full replacement costs range from $6 to $12 per square foot.
Flat Roof Repair
A small split in a TPO or modified bitumen membrane can let water in for months before anyone sees it inside the building. We inspect the entire roof surface, not just the spot above the drips, because water travels sideways before it comes down. Repairs are priced before we start, and the fix is guaranteed for a full year in writing.
Preventive Maintenance Programs
For property managers and building owners, scheduled maintenance costs less than emergency repairs. We clear drains, check seams, repair blisters, and document everything with photos so you know what was done and when. This is how commercial roofs in Houston make it past their expected service life instead of failing early, and why many owners follow a Roofing Company Maintenance Checklist for Houston Homeowners.
Metal Roof Installation
Metal Roof Installation is the process of installing standing seam, corrugated, or metal shingle panels over a residential or commercial structure. In Houston, metal roofs make sense because they shed rain fast, reflect solar heat, and stand up to the wind loads that strip asphalt shingles off a roof. Brennan Roofing Co Houston installs metal systems from manufacturers including CertainTeed and Boral. A metal roof installation in Houston typically runs $14,000 to $32,000 for an average single-family home, with standing seam on the higher end and screw-down panels on the lower end.
Standing Seam Systems
Standing seam metal has hidden fasteners and raised ribs that run vertically from eave to ridge. It looks sharp and it lasts, which is why homeowners in Houston who plan to stay put for twenty years choose it. We price these jobs by the square foot and give you the full number in writing before any material is ordered.
Metal Roof Repair
Metal roofs do not fail often, but when they do it is usually at a fastener, a seam, or a penetration like a vent pipe. We replace rusted screws, reseal seams, and patch damaged panels rather than trying to sell you a new roof you do not need. A metal roof repair in Houston typically runs $400 to $1,500.
Residential Roofing
Residential Roofing is the installation, repair, and maintenance of roofs on single-family homes, townhomes, and duplexes. Most Houston homes have asphalt shingle roofs, and most asphalt shingle roofs need attention after fifteen to twenty years of Gulf Coast weather. Brennan Roofing Co Houston installs complete residential roof systems, including decking, underlayment, drip edge, flashing, and shingles from GAF, CertainTeed, and Owens Corning. A standard asphalt shingle replacement on a Houston home runs $8,500 to $18,000, while a repair call is usually $350 to $1,200.
Full Roof Replacement
When a roof hits the point where repairs are stacking up faster than they can be made, replacement is the straight answer. We remove the old roof, inspect the decking underneath, replace anything that is rotted or soft, and install a new system with a written one-year guarantee. You get one price before we start, and that price does not move at the door.
Leak Repair and Flashing Work
Most roof leaks start at flashing: the metal pieces where the roof meets a chimney, a wall, or a vent pipe. We inspect each of those transitions when we repair a leak, because caulking over the visible gap usually leaves the real problem untouched. The goal is to fix it once.
Roof Maintenance
Roof Maintenance is scheduled, preventive care of a roof system aimed at catching small problems before they become large ones. In Houston, that means clearing debris from valleys and drains, checking flashing for gaps, and looking for lifted or cracked shingles after storm season. Brennan Roofing Co Houston offers maintenance programs for homeowners and commercial property owners who would rather spend a little on upkeep than a lot on emergency repairs. A one-time roof maintenance visit in Houston typically runs $250 to $600, depending on roof size and condition.
Annual Inspections and Cleaning
Once a year is the right interval for most Houston roofs. We look at the shingles, the flashing, the pipe boots, the gutters, and the attic side of the roof deck for any sign of water intrusion. You get a written report with photos so you can see what we saw.
Post-Storm Checkups
After a hailstorm or high-wind event, a quick checkup can be the difference between a $400 repair and a $4,000 one. We walk the roof, document any impact damage, and give you a written price for what actually needs fixing. If nothing needs fixing, we tell you that too.
Roof Coating
Roof Coating is a liquid-applied protective membrane, usually silicone, acrylic, or polyurethane, that is applied over an existing low-slope or metal roof. It seals hairline cracks, reflects UV, and extends the service life of the underlying roof without a tear-off. Brennan Roofing Co Houston applies roof coatings for commercial and some residential flat roof applications, and the work is backed by the same written guarantee as every other job we do. Roof coating in Houston typically runs $2.50 to $6 per square foot, including surface prep.
Silicone Coating Systems
Silicone coatings work well on flat Houston roofs because they handle ponding water better than acrylics and reflect a significant portion of solar radiation. We apply them over clean, sound substrates only, because coating over a failed roof does not fix the roof. The existing roof has to be worth coating before we will quote it.
Metal Roof Restoration
An older metal roof with surface rust and minor seam leaks can often be brought back with a coating system instead of a full replacement. We address rust spots, replace failed fasteners, and apply the coating in a uniform thickness. It costs less than replacement and buys years of additional service.
Free Roof Estimate
A Free Roof Estimate is a written price for your roof work, prepared after an on-site inspection and delivered before any work begins. Brennan Roofing Co Houston does not give ballpark numbers over the phone and then change them at the door. We walk the roof, take measurements, look at the condition of the decking and flashing, and put the full price on paper. The estimate is free, it is line-item, and it does not change unless you request a change to the scope of work. Call (940) 461-8481 to schedule yours.
What to Expect on Estimate Day
A uniformed, background-checked technician arrives inside the scheduled window and does a full inspection: shingles, flashing, pipe boots, drip edge, attic ventilation, and any areas you have flagged as problems. The inspection takes about an hour on a typical Houston home. You then get a written price, in your hand, before the technician leaves.
What the Written Price Includes
Materials, labor, fasteners, underlayment, drip edge, flashing, and haul-off of old materials are all listed separately. No line item appears later as an “additional charge” unless the decking under the old roof is in worse shape than it looked from the top, and even then we stop and get your sign-off before touching it. You never sign a blank check with us.
Brands We Service
We install and repair asphalt shingle systems from GAF, CertainTeed, and Owens Corning because these manufacturers have long track records and strong warranties. When we put down a GAF shingle roof, we follow their installation specifications exactly, because a manufacturer warranty is only as good as the installation underneath it. Homeowners in Houston who choose Owens Corning or CertainTeed get the same treatment: factory-spec fastening, proper ventilation, and flashing detail work that holds up.
For metal systems, we work with Boral and CertainTeed metal panels, and we give every manufacturer the same level of care in the install. Whether you have a GAF asphalt roof, a Boral metal roof, or any other make, we can repair it, maintain it, or replace it properly. If we do not know the product, we say so before we quote it, not after we install it.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Water stains on the ceiling or walls. A brown or yellow stain means water has been getting in, and the roof is the most likely entry point. The longer it sits, the more it damages insulation, drywall, and framing.
- Granules in the gutters or at the base of the downspouts. Asphalt shingles shed their granules as they age, and heavy granule loss means the shingles are losing their protective layer. When you see a lot of granules in one spot, that section of roof is nearing the end.
- Curling, cracked, or missing shingles. Houston sun bends shingles and high winds rip them loose. A few missing or broken shingles expose the underlayment, and the underlayment was never meant to stand up to the weather on its own.
- Daylight visible through the attic roof deck. If you can see light coming through the underside of your roof, water can get through those same openings. This is a simple check and a reliable one.
- Sagging roof lines or soft spots underfoot. A roof deck that feels spongy when walked on has water damage underneath the shingles. That structural weakness does not heal itself, and it tends to spread once it starts.
Our Process, Step by Step
- 1
Call and talk to a live person. You reach a human being, not a voicemail system, at any hour of the day or night. We take your information, ask about what you are seeing, and schedule a visit inside a window you choose.
- 2
On-site inspection. A background-checked, uniformed technician walks the property, inspects the roof from top and underside where accessible, and documents everything with photos. You get a straight explanation of what is wrong and what is fine.
- 3
Written price, before any work starts. The full scope and the full price go on paper. No verbal estimates, no “we’ll see when we get into it” pricing. If the decking needs more work than expected once we open the roof, we stop and show you before spending another dollar.
- 4
The work, done to The Garrison Code. Materials installed to manufacturer spec, flashing details done properly, site kept clean and swept at the end of every day. You get the same standard on a small repair as you do on a full replacement.
- 5
Final walkthrough and the 365-Day Done Right Promise. We walk the finished job with you, answer any questions, and hand you the written guarantee. If anything is not done right within one full year, we come back and make it right at no charge.
How Much Does Roofing Company Cost in Houston?
A typical asphalt shingle roof replacement in Houston runs $8,500 to $18,000 for a standard single-family home. Metal roof installation runs higher, usually $14,000 to $32,000 depending on panel type and roof complexity. Small repairs, including leak fixes and flashing work, run $350 to $1,200 for residential work, while commercial repairs fall between $450 and $2,500 depending on size and membrane type.
What moves the price? Square footage, roof pitch, number of valleys and penetrations, the condition of the existing decking, and the material you choose. A steep roof with three valleys and seven pipe penetrations costs more to roof properly than a simple ranch with two hips. The way to avoid overpaying is to get a written, line-item price and compare it honestly. That is what we hand you before any work starts, and it is what we hold ourselves to when the job is done. Call (940) 461-8481 to schedule your free estimate and get your number on paper.
Our Service Area Near Houston
Brennan Roofing Co Houston serves Houston and the surrounding communities, including Pearland, Baytown, Spring, Friendswood, Rosenberg, Fresno, Stafford, Pecan Grove, Humble, Sienna Plantation, and Seabrook. If you are in any of these areas, you can read more about our Roofing Company in Pearland or Roofing Company in Baytown. We schedule inspections throughout the week, and every job gets the same written price, background-checked technicians, and full-year guarantee no matter which side of the Beltway you are on.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Roofing Company in Houston
A roofing company is a business that installs, repairs, inspects, and maintains roof systems on homes and commercial buildings. In Houston, a good roofing company will be licensed, insured, and able to show you a written price before any work starts. Brennan Roofing Co Houston is all three, and every job is backed by our 365-Day Done Right Promise.
A typical asphalt shingle replacement on a Houston home takes one to three days, depending on the size of the roof, the pitch, and the weather. Metal roof installation usually runs three to seven days, and commercial flat roof work depends on the size of the building. We give you a schedule in writing with your estimate so you know what to expect before we start. Call (940) 461-8481 for a timeline specific to your property.
An asphalt shingle roof on a Houston home typically runs $8,500 to $18,000 installed, while metal roofing runs $14,000 to $32,000. Repairs are usually $350 to $1,200 for residential work and $450 to $2,500 for commercial leaks. The only way to know your number is to have us walk the roof and price it in writing, which we do for free.
Yes. We install and repair asphalt shingle systems from GAF, CertainTeed, and Owens Corning, and metal systems from Boral and CertainTeed. We install each manufacturer’s products to their exact specifications so the material warranty stays fully in force. If you have a brand preference, tell us and we will price it accordingly.
We answer the phone with a live person 24 hours a day, seven days a week, which means when a tree limb comes through your roof at 2 AM, you reach a human being who can start the process. We will schedule the fastest possible inspection and put a written price in your hand before any repair work begins. No voicemail, no callback queue, no waiting until morning.
Every repair and installation we complete is guaranteed in writing for one full year. If the fix fails or the installation was not done right within that period, we come back and make it right at no charge. The guarantee is written, it is specific, and it has our name at the bottom. That is the point of it.
For an inspection, clear any gates or paths to the roof, let us know about any pets, and make a list of what you have noticed: specific stains, drafts, areas where you hear dripping. For a replacement, we handle move-in and move-out of materials, but we will ask you to cover items in the attic with a sheet if you are concerned about dust from the decking work. We will walk you through all of it when you schedule your free estimate.
Schedule Your Roofing Company Service in Houston Today
You deserve a roofer who puts the price in writing before the first nail goes in and stands behind the work for a full year. Call Brennan Roofing Co Houston at (940) 461-8481 to schedule your free, no-obligation estimate. A live person answers, every time, and the written number you get is the number you pay.
Written by Travis Oakley, Owner at Brennan Roofing Co Houston, serving Houston, Roofing Company in Humble, and surrounding communities under The Garrison Standard.