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Meet the Designer Roofing Team

We’re a family company, and our team is our family. We’re proud and honored to have served Texas with premium roofing for over 25 years. And our loyal crew has been with us along the journey! Our project foremen – Raul, Angel, and Leo – have been installing quality roofs with us for 15, 10, and 6 years.

Dan Gerardis and Aaron Lenhart began their careers by working for roofing companies, and they learned the business from the ground (or roof!) up. They both saw that the roofing industry needed a more professional company with a dependable work ethic, and they started Designer Roofing together in 1992.

Aaron Lenhart, Bob Garza, and Dan Gerardis will be happy to help you get the roof of your dreams.

We specialize in premium residential roofing. In addition to top-quality composition shingle roofing, our crews are specially trained to install long-lasting stone coated steel and standing seam metal roofing.

Designer Roofing’s established office is just off Main Street in Prosper. If you’d like to stop by for a coffee, we’d love to meet you!


Dan Gerardis, Owner and Co-Founder

Dan Gerardis, owner and co-founder of Designer Roofing in Dallas, TX
Dan Gerardis

After graduating from Plano High School and learning the fundamentals of great customer service in the Chick-fil-A Leadership Program, Dan began his career in the roofing industry. He started as a roofing installer before quickly moving to sales.

Dan’s dream was to build a better roofing company: not just someone working out of a garage and a pickup truck, but an established company with a history of excellent customer service. Now, with Designer Roofing in business for over 25 years and regular referrals from happy clients, the dream has become a reality.

Dan handles the business side of the company, developing long-term relationships with top-quality suppliers and ensuring that every job is completed to Designer Roofing’s high standard of professionalism.

“We take our business seriously. We’re more concerned about our customers than we are about the bottom line, and we’ll do the right thing, no matter what.”

Dan lives in Prosper with his wife and three beautiful children, who keep him busy with all their sports. They are proud members of Prestonwood Baptist Church.


Aaron Lenhart, Owner and Co-Founder

Aaron Lenhart, owner and co-founder of Designer Roofing in Dallas, TX
Aaron Lenhart

A native Texan, Aaron graduated from Richardson High School and soon joined Dan in creating Designer Roofing. They began by installing roofs themselves and knocking on doors to earn new business, but within a few years, they were getting so many word-of-mouth recommendations from happy customers that they were able to begin developing their own crews.

Aaron now runs the sales side of Designer Roofing, ensuring that every new client is matched to the perfect roof for their needs and their home. Aaron manages the sales team and is responsible for business development, marketing, and customer relations.

Always looking to provide the best and most advanced roofing materials to his clients, Aaron pioneered Designer Roofing’s metal roof services in the mid-2000s. Designer Roofing now has an expert team for installing stone coated steel roofing, and manufactures their own z-form interlocking standing seam metal panels on-site for their customers.

“I’m so proud of the consistency of our crews. We have a dedicated team that installs every single stone coated steel roof, and another one that does every standing seam metal roof. That means we really do have expertise and can ensure that your new metal roof will last for 50 years or even more.”

Aaron and his wife live in Prosper and enjoy traveling to their ranch in Oklahoma with their dog Amber.


Bob Garza, Business Development

Bob Garza, Business Development Lead for Designer Roofing in Dallas, TX
Bob Garza

A native Texan, Bob grew up in Eagle Pass and graduated from the University of North Texas with a degree in Spanish. He began his career in sales in the education space, with Jostens memoriabilia and then several e-learning companies, including VSCHOOLZ and PassTheNotes.

With a proven ability to connect with customers and manage teams, Bob loves getting to meet new people every day and find out how he can best help them.

Bob has been developing relationships with new customers for Designer Roofing for three years, and he is proud to contribute to the company’s reputation for professionalism and top-quality services.

“When I see one of our customers in Kroger, I want them to come up and say hi. Our work ethic and reputation have kept us in business for 25 years, and knowing that our customers love us even years after their roof is finished makes me very happy.”

Bob has made his home in Frisco for the past 18 years with his wife and three children, and is incredibly proud of his family.


Our success is a direct result of our ongoing commitment to providing every customer with quality workmanship, state-of-the-art products, and a professional staff experienced in every phase of residential roofing and re-roofing. We are so proud that our business has grown so much through word-of-mouth referrals from our satisfied customers.

Headquartered in Prosper, Designer Roofing serves a wide range of locations, including the Dallas-Fort Worth Metroplex and all of Texas.

Call 972-644-6556 or Contact Us today for a free estimate!

What our Clients are Saying

  • Rusty, Plano

    All I can say is – dealing with Aaron Lenhart and Designer Roofing of Texas was excellent. Aaron and his people were professional, knowledgeable and nice to work with every step of the way.

    I felt their price was fair and they delivered exactly as promised. What more can you ask for in the real world? They started on time, ended on time and the house looks great with the new style of tile. I have referred a few friends to them since then and so far, everyone has been pleased!

  • Rob Paul

    The roof is fantastic and I really appreciate Designer Roofing’s hard work and professionalism throughout the process. It was absolutely the right decision for my project. Feel free to hand out my information as a reference for your company should anyone ask, I am happy to help.

    Robert G. Paul
    Division President, Dallas – Fort Worth – Austin, Toll Brothers, Inc.

  • Kumar, Frisco

    I was impressed throughout with Designer Roofing’s professionalism, experience and knowledge of the business. As my agent, you worked with my insurance company to get their approval, and I was delighted to see that you ordered specialized pictures of the house to make it easier for the insurance company to assess the damage and approve.

    Your team was experienced and they worked with a good work ethic to get the job done very quickly. This was key since you did not use novices to install the specialized Gerard stone coated steel roof. Your team was well trained: they covered the pool and daily used a magnet to clear the home premises of any metallic materials.

    You had no hesitation in ensuring my complete satisfaction, and sent in the experts to fix a couple of minor things that I wanted changed. Please accept my gratitude and congratulations for a job well done and a super service!! I shall be happy to recommend you and your company to anyone without hesitation. 

  • Stone coated steel metal tile roof

    Pam and Rick, Frisco

    We just wanted to drop you note and tell you how much we enjoy the new roof. The style we chose with your help looks great. More importantly, the service of you and your team was outstanding. Your crew was attentive to the details and cleaned up well each and every day. And, to top it off, you started and finished when you said you would. Job well done!

  • composite roofing by designer roofing

    Bing and Rachel, Plano

    We were battered by the windstorm of April 2008, which tore down our entire fence, a beautiful 10-year old tree, and a huge section of our composition roof.

    Designer Roofing came to our rescue and immediately patched the roof to prevent further weather damage. Despite a heavy workload brought on by the storm, Designer Roofing proceeded to replace our entire roof as soon as was possible. They replaced all fixtures and chimney flashings to perfectly match our new roof color, too.

    Designer Roofing was very professional throughout the job, helping us understand the re-roofing process, eagerly answering our every question, and giving us the greatest value for our insurance coverage and out-of-pocket costs. If we ever need a new roof again, Designer Roofing will be #1 on our list, and we would gladly recommend them to friends and family alike!