Roof Replacement and Repair


Over 18 Years Roofing







We Specialize in everything roofing .

Your roof protects your family and everything you care about. Don’t take any risks with installation or repair.
Choose a Knoxville Residential and Commercial roofing company you can trust.

Tim Gannon

Meet Tim the Founder and Certified Preferred Contractor of NexGen Roofing Systems. Tim has over (15) years of experience in the roofing industry, and has spent years working alongside some of the best roofers in the country. With all of his experience Tim has successfully installed hundreds of roofs on his own before founding NexGen Roofing Systems. Tim takes a strong focus on customer satisfaction, quality products, and top-notch workmanship.
Tim is a firm believer that it is a contractor’s job to educate the customer on all phases of the roof process, from start to finish. He is so confident in his crew’s work, each roof replacement is backed by a fifty-year, transferable warranty. NexGen Roofing Systems has a goal to be the next generation of roofing, using only the best material and technologies the industry has to offer. Call Tim any time with questions about your roof! (865)951-1885

Joshua Ayers

Meet Josh our Director of Business Development.
Josh is a Multi-talented Startup Founder successful at managing company roles in order to maximize business and customer success. As a Visionary Leader he has prepared himself to leverage abilities in Operations and Communication to take on a new role as NexGen Roofing System’s “Director of Business Development”, and continue to move the company forward with preferred customer service and quality control management.
Josh has spent the past nine years perfecting his skills in sales and understanding the best methods to educate all of his clients in what is needed for a happy worry free future. He has spent many years developing amazing relationships in each field of business his companies have been apart of. From Radio to Live Entertainment, School Photography, Automotive and Hardwood Flooring the relationships he built have helped educate and prepare him for the next stage of his career with NexGen Roofing Systems.
In his free time he enjoys playing music (guitar/piano) with friends and local community musicians. He is married to his beautiful wife Michelle and the father of Elijah and Audrey Rose.
“I am looking forward to being your go to guy in the roofing industry.” – Joshua Ayers

Our commitment to you

Many homeowners feel that home renovations and repairs are overwhelming are stressful. We go out of our way to make it easier, faster and trouble free. We work with you closely at every stage, from the first inspection to installation and maintenance. You always feel that everything’s under control.

to be the best roofing company in knoxville

Every day we strive to perfect everything we do for you. We work hard to be the best roofing company in Knoxville Tennessee.


It all starts with a FREE Inspection of your roof. Let's find out how we can save you money. We appreciate your business.

Every Detail

Whether it is a minor repair or if you need a whole roof installed. We cover every detail. We are very thorough. We care.


Whether it be from storm damage or just the age of your roof. Repairs are inevitable. We are here to help you through it.

Large or Small Repairs

It does not matter how large or how small your repair is, we know it is important to you. We are on time, fast, and efficient.


We are equipped and ready for your roof replacement. We make it easy from start to finish. We are here for you.

Whole roof care

You may be new to this, but we do this every day! We are confident and we perfect our processes with each and every roof.

5 Stars

We make sure you are completely satisfied. We have built our business around happy clients. We work till you're happy.

our goal

Taking care of you, your family, and everything you care about under your roof is our priority. Let us give you 5 star service.

Roof Visualizer 2

Move slider below to see before and after results.

Roof BeforeRoof After

Explore Our Recent Work

Here are some of the roof repair and roof replacements we have completed recently.

Our Home Owners Say

“Tim and his team were right on time and they helped me every step of the way. They really care!”
“I cannot say enough great things about NexGen Roofing! Top notch customer care.”

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