4510 S Federal Blvd Englewood, Colorado 80110

3525 N Cascade Ave #204 Colorado Springs, CO 80907

(303) 761-6400(24/7)

(719) 434-3020(24/7)

A Flat Roof Case Study

A long-time local business owner, and previous customer of Excel Roofing, was in need of a roof estimate for his commercial property in Denver. He received bids from two other roofing companies, but wanted another opinion. He started working with Glenn Summerlin, Excel Roofing’s flat roof expert, who inspected the roof and provided the customer with 3 options: 2 estimates for full reroofing projects and 1 estimate for a GACO Silicone Coating.

The customer had not been advised of this third option by either of the other companies, so Glenn explained that it was an alternative to replacing the roof. Instead of tearing off and replacing the flat roof, the roof would undergo a process of being thoroughly cleaned and resealed with the durable and seamless GACO Silicone Coating.


  • The GACO Silicone Coating extends the life of the roof, instead of having to do a full roof replacement.
  • The reroofing options would have cost the customer about $25,000. The GACO option only cost $12,900, almost a 50% savings.
  • Applying the roof coating saves time and waste. This project only took three days to complete, and with no tear off, there’s very little waste to this job.
  • 10-year leak guarantee 
gaco roof coating finished product


Because Excel Roofing is a certified GACO applicator, we were able to offer the customer a 10-year leak guarantee for a nominal fee.

A 50-year manufacturer material defect warranty also came with this installation, meaning that in the next 50 years (if any of us are still around) the manufacturer will provide prorated compensation if the material fails.


It’s important to note that this customer’s roof was a perfect candidate for a GACO coating. GACO roof coatings can only be applied to TPO (plastic), EPDM (rubber), modified roofs, and metal roofs.  As has happened in the past, the other companies didn’t offer a roof coating option to the customer; an option that gives customers almost 50% savings over the reroofing option.

We’re glad we were able to provide this customer with a different solution to his roofing needs.

In addition to the savings, the installation of the coating system only takes about three days to complete; about half of the time of a full roof replacement. This time savings means less disruption to the owner and his business.


Applying a roof coating isn’t as easy as going to Home Depot, buying a bucket of coating and slapping it on.

gaco roof coating in progress

In order for the coating to be properly installed, the old roof needs to be thoroughly cleaned, and all the seams need to be thoroughly checked. If any seams are found that aren’t 100% bonded, they need to be re-bonded before the GACO coating is applied.

After this is done, the entire roof area needs to be primed. Only then is the final roof coating ready to be applied. If these steps aren’t carefully followed, the system can fail.

To learn more about roof coatings and flat roof options, call Excel Roofing today.

Click here to read more about flat roofs.

Receive a half-price solar-powered attic fan for $500, with the purchase of a full roof. Normally $999.


Why Homeowners and Businesses Choose Us

Colo Radans
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Excel Roofing is the only roofing company I would trust and recommend to others. Kevin M. is extremely helpful and professional at all time with his experience and knowledge.
Ralitsa Carter
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I highly recommend consulting with a true roof insurance expert like Excel Roofing, as there are a lot of details one can easily miss if not in the field on a regular basis.
Mary Kimball
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Omar came out and repaired some of our inside ceiling where the nails lifted the drywall. He is an amazing worker, a master at his job. Ask for Omar as he is a real asset to Excel Roofing!
Cindy L
Local Guide
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This company has gone way beyond my expectations. Thank you Jay and especially thank you JR for doing such a great job, being dependable, on time and affordable.
Rick Sturdivant
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Troy Lindsay and his team did a great job installing a new roof. They even worked with me when I wanted a solar-powered attic fan installed and helped me size and choose one.
brian niles
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These guys are top notch! You will not find better service anywhere!! Thank you Excel!!
Dustin Sieve
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I would absolutely recommend Excel roofing for any roofing, gutters or painting. I plan on using them again for any future claims.
Eric Zietlow
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Eric the project manager answered all calls and e mails promptly, addressed any concerns, and followed up on small issues. Good looking roof, no headaches or stress on my end.
Nicki Shields
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The building inspector said this was one of the best roof jobs she has seen, she was very impressed. I highly recommend Excel Roofing for roofs, siding, and windows. I could not be more pleased! Look no further.
Sonny Romero
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Matt Foster was our Project Manager. Matt was very friendly, knowledgeable, and professional. He was involved from the estimate through the final inspection. Excel Roofing did an outstanding job.
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Troy and his crew were outstanding. He explained the details every step of the way. They gave us a job date and completed on time.
Kevin Donahue
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Unlike the other companies who bid my roofing job, Excel (Brock) was not pushy and the deal did not have to be signed before he left the house. I am extremely pleased.
Ana Kauffman
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Love Chris, had my best interest in mind during the entire roof replacement process. He was able to rush the job for us given that we were nearing the closing date of the sale of the house.
Andy Dimmen
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Throughout the process I had one point of contact at Excel (Brock). Brock managed the entire process so that I didn’t have to do a thing. I will recommend Excel to everyone I know
Taylor Hood
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I would have given 5 stars. Giving 4 because of how hard Matt worked to get project finished and they were priced very reasonable compared to other roofing companies.
Beth Rogers
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Troy and his crew went above and beyond for us. Working to help us navigate insurance claim. Great job, on time, on budget, house looks great. Couldn't be happier! Highly recommend Mr Troy and his crew!
Bob Andersen
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wonderful company to work with.. from the initial call for someone to come look.. the project manager Bob was at the house within an hour.
Mindy Densmore
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They showed up on time, determined the problem, showed us a video of what to do to prevent it in the future and and took care of it immediately. I highly recommend Excel.
j snoy
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I definitely recommend and will use again. Chris the project manager was very quick to respond and quite reliable. Overall, a great roofing experience.

Denver Metro

4510 S Federal Blvd
Englewood, Colorado 80110

Phone: (303) 761-6400

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Colorado Springs

3525 N Cascade Ave #204 Colorado Springs, CO 80907

Phone: (719) 434-3020

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Sheridan, Wyoming

1574 N Main Street
Sheridan, Wyoming 82801

Phone: (307) 763-4050

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Casper, Wyoming

373 Lakeview Drive
Casper, Wyoming 82604

Phone: (307) 237-770

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