Commercial Flat Roof Certainty. Peak Performance.
Stop Heat Gain.
Ensure Leak-Proof Durability
Most commercial flat roof failures in Houston don’t start from a single storm—they begin with repeated thermal cycling in 100°F+ summers that fatigues seams and hardens aging membranes until a modest rain event reveals a structural problem that’s been building for years. Achilles Roofing & Exterior installs TPO, EPDM, PVC, and Modified Bitumen systems with a 5-year workmanship warranty, starting at $20,000 for commercial replacements. Foreman Edwardo Cano brings 12 years and 5,000 completed projects to every job.
Why Houston Flat Roofs Fail
The Real Problem Isn't the Storm.
Houston property managers are accustomed to blaming the next tropical system for roof damage. But in most cases, the storm is just the final test. The actual failure is three to five years of thermal stress that has degraded the membrane, separated the seams, or allowed moisture beneath the insulation board—long before visible interior damage appears.
Commercial flat roofs in the Houston metro operate in one of the most demanding thermal environments in North America. Daily temperature swings of 40–50°F during transitional months, combined with 70–80% average relative humidity, create repeated expansion and contraction cycles that are especially destructive to improperly welded or adhesive-bonded seams near HVAC curbs and pipe penetrations.
Penetration Flashing Fatigue
HVAC curbs, pipe boots, and drain collars are the first points of membrane failure on Houston commercial roofs. Thermal cycling causes the membrane to pull away from rigid penetrations at 0.1–0.3 inches per season. By year four, that gap becomes a water entry point during any significant rain event.
Trapped Deck Moisture
When Houston's humid air infiltrates beneath a compromised membrane, it condenses against the insulation board and roof deck during cooler nights. Wet insulation loses R-value immediately—and trapped moisture accelerates fastener corrosion, often invisibly, until decking requires replacement rather than just membrane work.
Ponding from Drain Displacement
Many Houston commercial structures were built on soil that has settled unevenly over decades. Drain positions that once sat at the low point of a roof now sit inches higher than adjacent areas, creating chronic ponding that no membrane material—TPO, EPDM, or otherwise—can tolerate indefinitely without premature seam failure.
Installation Options We Provide.
No Project Too Big or Too Small.
The industry standard for single-ply systems, highly popular for its exceptional heat reflectivity, puncture resistance, and cost-effectiveness for large commercial spaces.
Known for its outstanding resistance to chemicals, grease, and fire, making it ideal for restaurants, labs, and industrial facilities.
A robust, durable synthetic rubber membrane traditionally favored for its longevity and resistance to hail, extreme temperature cycles, and thermal shock.
Modified Bitumen systems offer high-tensile strength and are designed for high-traffic roof areas, providing excellent durability and weather resistance.
A traditional multi-layer application using hot asphalt to bond plies together. This method creates a thick, redundant, and highly reliable waterproof barrier for commercial structures.
A high-strength application method for Modified Bitumen roofs where layers are fused together with a propane torch, creating an exceptionally tight and long-lasting waterproof seal.
High-performance standing seam systems providing maximum longevity and structural integrity for low-slope commercial buildings with minimal maintenance.
Our Proven Installation Process
Stress-Free Flat Roofing Installation, Step-by-Step.
We perform a core sample test and moisture survey to determine the exact needs of your existing roof deck and structure.
& Planning
We collaborate to select the optimal membrane (TPO, PVC, EPDM) and insulation thickness, securing necessary permits.
Safety Protocol
Materials are staged efficiently, and strict OSHA safety standards are enforced to protect your employees and property.
& Assembly
Our specialized crews install the membrane, using robotic welders for flawlessly sealed, watertight seams and proper flashing.
We conduct a rigorous final inspection and provide all documentation for the full manufacturer system warranty and our 5-year workmanship warranty.
See Our Work:
Quality Commercial Flat Roofing in Action.
Don't Wait to Protect
Your Investment.
Upgrade to Lasting Commercial Protection.
Delaying flat roofing replacement or maintenance can lead to lost inventory and severe business disruption. Contact Achilles Roofing & Exteriors now for a free, no-obligation inspection and expert flat roofing estimate.
I would like to post a positive review for Achilles Roofing & Exteriors team. It is second time we are doing minor work on our house and I'm very satisfied with quality of work, dedication and enormous progress on a transformation they made in both times. I do not foresee any roof repairs on my house in future but if you are looking for someone trustworthy, punctual, caring to do your roof work, I would totally trust them.
Achilles Roofing & Exteriors did an exceptional job with our residential roofing project, providing top-notch roof repair services and professional work done at a reasonable cost. Their experienced roofer team handled the quick roofing service with care and attention to detail, ensuring our new roof exceeded our expectations.
We really needed a new roof and we got 5 different quotes from 5 companies and Achilles gave us the best quote by thousands of dollars! Very professional work and service and very flexible to help meet our busy schedules.I would highly recommend this company to anybody who needs roofing services.
Great price · $2,000–4,000
To cool down my attic, I decided to install a solar attic fan. I got proposals from four different vendors and evaluated them based on customer service, experience, implementation, and price. Achilles Roofing & Exteriors, led by Ahmad Faiz, was the standout choice.
Great price · $10,000–12,000
Ahmad is very professional. The process was very simple. Price was affordable and the quality of work is amazing. Thank you for the new replacement and previous rook repairs.
Quick turnaround on some roof repairs we needed for the sale of our home. Everything was documented on the invoice and with photos. Very professional.
Great job on my Atrium cover. Used them before for my roof. Well done and very reasonable.
Frequently Asked Questions
Is TPO or PVC better for a commercial kitchen?
PVC is often superior for commercial kitchens because its chemical makeup resists animal fats, oil, and grease, which can degrade TPO over time.
Will a white roof membrane lower my energy costs?
Yes. Reflective white membranes (TPO/PVC) reflect up to 80% of the sun’s UV rays, dramatically reducing heat transfer and lowering your HVAC cooling loads.
What is the typical lifespan of a new flat roof
With proper installation and maintenance, a high-quality TPO or PVC system is expected to last 15 to 25 years.
How often should a flat roof be inspected?
We recommend scheduling inspections at least twice per year (spring and fall) to check drainage, seams, and areas around HVAC units.
Do you offer preventative maintenance contracts?
Yes. We offer customized maintenance programs designed to extend the life of your roof, prevent leaks, and ensure all system warranties remain valid.