
We protect your commercial roof by moving water away fast and helping prevent leaks, pooling, and costly damage.
Water Management Is Critical to the performance and longevity of any TPO roofing system.

Our installations incorporate tapered insulation, crickets, saddles, internal drains, and overflow scuppers to create positive drainage across the entire roof surface. By directing water away from rooftop equipment and toward designated drainage points, we reduce ponding water, minimize stress on the membrane, and help extend the service life of the roofing system. Every drainage component is carefully integrated into the TPO membrane using manufacturer-approved details and heat-welded flashing methods to ensure long-term watertight performance.
A commercial roof is only as good as the drainage system protecting it. Even the best roofing system can experience premature deterioration when water is allowed to pond, overflow, or back up along roof edges. Properly designed gutters, downspouts, scuppers, and drainage components work together to move water safely away from the roof, walls, foundation, and pedestrian areas. Commercial box gutters are specifically designed to handle the larger water volumes generated by warehouses, office buildings, retail centers, schools, and industrial facilities.

Every drainage system must be sized to match the building's roof area, slope, and expected rainfall. We install custom-fabricated box gutters, oversized downspouts, collector heads, scuppers, and drainage accessories designed to efficiently move water off the roof and away from the structure. Proper sizing helps prevent overflow, ponding water, fascia deterioration, foundation damage, and costly leaks.
Our Commercial Drainage Services
Custom box gutter installation
Box and round downspouts
Scupper installation and repair
Collector heads and conductor boxes
Overflow drainage systems
Gutter replacement and restoration
Drainage troubleshooting
Preventive maintenance programs
Leak investigations and repairs
Roof drainage upgrades for existing buildings

Many commercial roof failures are not caused by the roofing system itself but by inadequate drainage. Standing water increases roof loading, accelerates membrane aging, and creates opportunities for leaks. A properly functioning drainage system extends roof life, reduces maintenance costs, and protects the building investment for years to come.
Our team evaluates the entire drainage system—not just the roof. We inspect gutter capacity, downspout sizing, drainage flow paths, scuppers, overflow protection, and areas prone to ponding water. The result is a complete water-management solution that helps keep your commercial property protected during even the heaviest storms.

These tapered insulation structures are installed behind HVAC curbs, skylights, and other rooftop obstructions to divert water toward drains and scuppers. They eliminate dead-water areas and reduce ponding that can shorten roof life. A cricket (also called a saddle) creates positive drainage by directing water around rooftop penetrations and toward the designed drainage path.

Internal drains are the primary drainage method on many commercial TPO roofs. The membrane is welded directly to the drain flange, creating a watertight connection while allowing water to move into the building's drainage system. Proper sump areas and tapered insulation help funnel water efficiently into these drains.

Scuppers provide an additional path for water to exit the roof, typically through a parapet wall. They are often used as primary drainage or emergency overflow protection when heavy rainfall exceeds drain capacity. Properly flashed and welded TPO scuppers help protect the building from water accumulation and structural loading.
A properly designed TPO roof is rarely flat. Tapered insulation packages are engineered to create positive drainage across the roof surface, directing water toward drains, gutters, or scuppers. This design minimizes ponding water, improves long-term membrane performance, and helps maximize roof life. Drainage planning is one of the most important parts of a successful TPO installation.
We start with a free on-site consultation to inspect your gutter system, downspouts, roof drainage paths, slope, and water trouble spots around the building. We then provide a clear scope of work, practical recommendations, and a detailed estimate so you know exactly what needs attention and why.
After approval, we design a drainage and gutter solution that fits your roofline, drainage load, and property layout, whether that means repairs, replacement, or improved water diversion. We schedule the work around your operations, confirm materials, and set realistic timelines so the job stays organized and efficient.
Our crew completes the gutter and drainage work using proven roofing practices, with close attention to secure attachment, proper pitch, sealed joints, and clean water flow. Before we wrap up, we test the system, clean the work area, and walk you through the results to make sure you feel confident in the finished work.
Common questions we hear from commercial property owners in Richardson and the surrounding area about gutter drainage, roof water control, repairs, and replacements.
A good drainage and gutter system moves water off your roof the right way. That helps prevent standing water, roof leaks, foundation issues, exterior staining, and damage around doors, walkways, and landscaping. In our experience, poor roof drainage can shorten the life of a commercial roof fast. We make sure water is directed away from the building so your property stays protected.
Some of the most common warning signs are overflowing gutters, water pooling on the roof, sagging gutter sections, visible rust, separated joints, stains on walls, erosion near the building, and leaks after heavy rain. If you notice any of these issues, it is smart to have them checked early. Small drainage problems can turn into expensive roof repairs if they are ignored.
It depends on the condition of the system. If the problem is limited to a few sections, loose hangers, bad seams, clogs, or minor drainage issues, a repair may be enough. If the system is badly rusted, pulling away from the structure, poorly pitched, or no longer sized correctly for the building, replacement is often the better long-term option. We will inspect it and give you an honest recommendation based on what makes the most sense for your property and budget.
Yes, absolutely. When water does not drain off the roof properly, it can lead to ponding water, membrane damage, leaks, fascia problems, and faster wear on the roofing system. Over time, that can impact insulation, interior spaces, and even routine business operations. Our team looks at the full picture so we can address both the drainage issue and any roofing concerns tied to it.
We are a family-owned roofing contractor based in Richardson, TX, and we focus on doing the job the right way with clear communication and honest service. Our team is RCAT licensed, and we work with commercial clients who need dependable roofing and drainage solutions. We offer free estimates and consultations, and we take the time to explain your options clearly so you can make the right decision without pressure.
The best next step is to contact us for a free estimate and consultation. We will inspect your drainage and gutter system, identify the cause of the problem, and recommend the best fix for your building. The sooner you deal with water control issues, the better chance you have of avoiding bigger repair costs. Call Pillar Roofing today to schedule your inspection and get trusted help from an experienced local team.
Real feedback on our roof work, clear service, and reliable results from start to finish
"Pillar Roofing replaced my roof and gutters last month and they did an excellent job. Steve and George are awesome! They were very quick to respond and answer any questions that we had. I highly recommend Pillar if you need a new roof!!"
"Can’t recommend Pillar Roofing enough! Steve and Wayne came out within a day of my talking to them, took their pictures and came back with several bid offers, everything from a full rebuild to simply minimal patching. We went with the middle road of doing a liquid TPO, which they got done in record time, and hauled off all their materials. No leaks on that project since, and we had them back out for another roof that started leaking after that terrible 2022 north Texas rainstorm. Same story, record time for the bid, and they got it done with no hassle on our end. Highly recommended! John Lee Harrison- The Armstrong Foundation"
"Pillar Roofing roofing has responded quickly to our requests and we have I have to admit that they've done an excellent job given very tight time constraints we recommend pillar roofing for any of your needs commercial or residential."
"Workers were friendly and very professional. Workers were on time and provided a detail inspection of areas needing repair. Gave a reasonable estimate, and started work. Completed work timely and professionally. Would recommend these guys to anyone."
"Everyone was so professional, we looked for multiple companies to get this completed and we decided to go with Pillar Roofing. Best decision we could have made. Steve and Wayne have been absolutely great to work with. Answered all questions we had and got us repaired in a timely manner. We used them on other properties projects we have had. Would highly recommended for a big or small project."
"We used Pillar Construction for our home repairs after the hail storm in 2016 and they went above and beyond. Very professional and took care of everything. Our roof looks amazing! We also had them paint our house as well as the fence and had new windows put in. I highly recommend them."
"When ever we have an issue with any of our properties we know exactly who to call! Key Point Management has been working with Pillar Roofing Commercial services since 2021 on many of our properties .They been nothing but quick,efficient and reliable from the start. I Highly recommend them!"
"EXTREMELY SATISFIED CUSTOMER! When I was first shopping for roofers for a major skylight leak I couldn’t even find an honest roofer. We have cameras all around our house. We had two roofers give us a quote to replace the entire roof that didn’t even get on top of our roof! BLAKE from Pillar Roofing came out and then met with me to go over his quote and suggested we get an insurance adjuster out because he saw some hail damage. Our roof was over 20 years old. So we did and the inspector agreed. Blake walked me through the entire process and answered all my questions. His crew showed up even earlier than Blake advised on both days. They cleaned up after demo and after install. They completed the job when Blake advised. The roof looks amazing and all my neighbors are asking for their number! Blake is extremely knowledgeable and took time to explain the process to me and everything he advised was true to what occurred. Blake is personable, patient, and very responsive. I felt completely at ease working with Blake on this major project! I am extremely pleased with Pillar Roofing!!!"
"We are extremely pleased with the work Pillar did on our roof. Blake Joyce managed the replacement of both the shingle and copper replacement of a very steep roof. All of their crew was very professional, hard-working and conscientious. They completed the work promptly and did a great job of clean up. We recommend them highly."
"Job was completed satisfactorily"
"We were treated like family by Steve and Pillar Roofing. Steve met with our insurance adjuster and made sure all storm damage was included in the claim. On top of getting a awesome new roof we also got all new exterior paint and all new gutters. I highly recommend Pillar for any storm damage repairs."
"Pillar installed a metal roof on my mobile home. They answered all my questions and had solutions for all my concerns about the roof. The roofing crew was professional in the installation of the medal roof. The crew left the job site clean even after removing two layers of roofing material and repairing the roof deck. This is an outstanding roofing company."
"I have called Marshall at Pillar Construction several times and he always responds quickly and handles all repairs in a professional and courteous manner. Pillar Construction does a great job with home repairs. I will definitely call them again when I need work done."
"Blake at Pillar Roofing did an outstanding job all thru the process. He was there when the adjuster came, and helped with the claim process. His crew was fadt, efficient & did high quality work. The also cleaned up very thoroughly & Blake came back several times to personally make sure we were happy with the roof. Ver highly recommended!!! John Gannon"
"I was researching online for replacement of my roof and Pillar Roofing was the first to respond. They were willing to communicate through text, which I appreciate. The man who came to inspect my roof was punctual, very friendly and thorough explaining my options and the procedure. After the insurance agent came to inspect the roof as well, a date was set and that morning the crew arrived and replaced the roof and cleaned up by 5 pm. The roof looks great. The crew was nice. I'm happy. Thank you."
"Marshall Was awesome!!!!! We had a storm come thru and he check our roof. We got busy with life and Marshall was Persistent (in a Good way) to make sure I was able to get the claim done. I had been in an auto accident and then we put out house on the market. Marshall and Pillar made the adjustments to help get the roof done and made sure that everything went smooth from start to finish. Even when there was a scheduling conflict they even made sure the work would be done around our busy schedule so we could continue to show the house. I am happy to say the house sold to a couple that had seen Pillar working on the roof. Marshall and Pillar have gain a life long client. I can not recommend them enough."
"Pilar is the Best Roofing Company in Richardson Texas"
"Very informative communication, prompt efficient construction, quality results! We're highly satisfied!"
"Superior quality, great follow up and customer relations. Great support with insurance examiner as well."
"Outstanding service. Never hawked me for payment. Very honest. Would highly recommend Pillar for roofing and other work"
"We used Pillar Construction for our home repairs (replace windows, roof, gutters, and re-stain fence) after the hailstorm in March of 2019. Steve was very responsive, worked with our insurance company, and ensured the work was completed to our satisfaction. I highly recommend them."
"Steve and his team went above and beyond to assist us in getting our roof and gutters replaced in a tight schedule. Steve was very responsive, worked with our insurance company, and ensured the work was completed to our satisfaction. I highly recommend Pillar Roofing."
"I have used pillar roofing two times now and they have been phenomenal and I have referred them to a friend and they were also VERY satisfied with their workmanship, I will continue referring them to anyone I know. Steve Monahan is a remarkable individual, super nice,super understanding and VERY professional. His crew's are also very polite and courteous.I will always use Pillar Roofing for All my roofing needs and then some ,they also take care of other repairs, check them out,you will not regret it. Sincerely Brett Clark, Rockwall,tx."
"The December 26, 2015, F4 tornado which went through Rowlett was devastating. Pillar Roofing was a God send concerning our roofing needs. From the beginning until the end, Mr. Monahan was concerned and at our side. The work was absolutely professional. Very impressive. Mr. Monahan's follow-up has been equally as professional."
"I could not have asked for better service. I was hit by the two major hail storms in Wylie. After the first one, I contacted Blake Joyce to look at my roof.........wasn't sure if I needed to contact my insurance company. He came out right away and confirmed the call. Needless to say, the second one hit and I then had hundreds of holes in my roof..........water coming in everywhere. My adjuster was already scheduled to come out the day after. Once he gave the OK......Blake had his crew were out to cover the roof that night..........by Friday (which was before the next big rain that came) he had our beautiful new roof going and finished Saturday morning. Thank you Pillar/Blake Joyce for the awesome job done and being so kind and patient! Karen Clevenger"
"Pillar handled the storm repair on my house in Wylie, TX in 2017. They repaired my roof, repaired my gutters, replaced my siding, and recommended a great guy to help repair and update my AC unit. They handled all the arrangements with me remotely as I was living out of state at the time. Their customer service was a huge help to me. They were honest, responsive, and understanding. I highly recommend this family owned company. Thank you Pillar!"
"Pillar Roofing was really great. We had our roof ruined in the spring hail storm of 2017 and they were among many roofers we talked to. Pillar gave us a reasonable quote, they were on time and the work was really terrific. And they cleaned up after the job! I highly recommend them."
"Got hit pretty bad with the Murphy Hail Storm last Spring. Steve the owner was personally engaged as well as several of his staff. He took us through the entire process and explained what to expect and the timing from start to finish. He worked directly with our Insurance company and assured all our damage was repaired and even pointed out things to the adjuster that we had no clue were covered. Very satisfied with the results and the professionalism of the crew. While I hope we never have to go through that again, you can be sure we will be calling Pillar Roofing if we do."
"I am very Happy with the customer service,the on time and the professional service. They also left a nice clean job site. Thanks. It looks great"
"Very professional and prompt; Marshall with Pillar really helped guide through both the repair process and the process of dealing with insurance claims. I firmly endorse them and would recommend them to friends and family."
"Steve will take care of you. Very responsive and professional."
"Awesome company, They came on property and fixed the problem we had. After the problem was fixed I received calls after to make sure we were ok and if we needed anything else fro them. I will definitely call them back. Christopher Reagor Revere Court Of Rockwall"
"Great company, great customer service!"
"I recently (late 2014) had a fairly major interior and exterior paint job, and woodwork replacement, done to my house. Our house is completely painted brick and fascia, a rather large job. I couldn't be happier with the level of service I received from Pillar Construction. I am a very picky person and they more than satisfied me. I would be happy to answer any questions from a perspective customer, or anyone else, but can't say enough good things about the services performed. They exceeded my expectations!!"
Pillar Roofing
Call Pillar Roofing now for expert drainage and gutter solutions that prevent costly water damage.