A Roofing Experience You'll Actually Enjoy

We're more than just a roofing company, we're a company dedicated to customer satisfaction. Our team was founded on strong core values, collaboration and hard work. You'll be happy to know we're passionate about providing the best roofing and home exterior renovations to our customers while never settling for less.

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Award Winning Roofing Company

BBB Badge
Readers Choice Award
Three Best Rated Roofers
Google Reviews On Our Roofers
HomeStars Award For Best Roofers
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Why Our Customers Love Us

Family owned since 1980, we've been making customers happy. There's a common theme that keeps repeating whenever our customers describe our team: high-end craftsmanship with superior communication. And it's true. Each job we take on we treat like it was for one of our own family members.

Because of this, our customers never hesitate to recommend us to their friends and loved ones.

Roofing Companies Hamilton

A Full Service Roofing Company Dedicated To You

  • Family owned
  • Licensed and insured
  • Personalized, attentive workmanship
  • An actual physical showroom to come and see us
  • Complete full service solutions
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Our Core Values

  • Build open and honest relationships through clear communication
  • Work with passion and determination
  • Unwavering commitment to maintain high standards
  • Build a positive team and family spirit
  • Seek the next adventure and opportunities to grow
  • Be our customers advocates
  • Treat our employees and customers with the utmost respect
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Our mission is to provide our customers the highest quality care and protection on their most valuable asset, their home.


We will continue to lead the field of roofing and exterior home renovations by constantly growing and never staying satisfied.


We exist to operate on the principles of honesty, integrity and trust.

Owners & Advisors

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Joel & Karena Knight

Owners / Project Estimator / Secretary

Joel has been working in the roofing & construction industry since 2003.  He started his construction career as a full-time installer and then transitioned over to estimating for Gerry’s Roofing & Siding in 2010. Joel has now taken ownership of the business, with Gerry as his advisor. Joel is married to Karena, and they have 3 very active boys. Joel is committed to serving his local church by singing on the praise team & managing the audio visuals department. In his spare time Joel enjoys playing basketball, snowboarding, and working out at a local gym.

Karena has been a secretary for over 15 years. She started her secretary career at St. Joseph’s Healthcare in Hamilton and enjoyed working with a team of healthcare professionals. Karena then joined Gerry’s Roofing & Siding along with her husband Joel. Karena loves working with people, helping those around her, and spending time with her 3 young boys. In her spare time, Karena loves to visit family and friends, and enjoys helping others design and decorate their houses. If you are having trouble choosing colours or design for your next project, Karena is the one you want to talk to.

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Gerry St. Germain

Founder / Advisor

Gerry got started out in the roofing industry as a summer job decades ago. That led to creating his own company in 1980 that you see here today. After serving his community and customers for many decades, he retired and sold the business to long time employee Joel. He stays on as a advisor and mentor to the team.

The Team

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Donna Petrarca


Donna is quite bubbly and has been working part-time for Gerry’s Roofing since 2015. Donna was born & raised in Burlington where she still lives with her husband Roger and their 2 dogs, Lexi & Bella. In her spare time, she enjoys gardening, playing games and walking her dogs. She is always challenging herself with her Fitbit and would welcome you as a new Fitbit friend.

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Tim McGowan

Project Manager

Tim has been in the construction industry over 30 years, has been with Gerry’s Roofing since 2013 and has been the project manager since 2017. Tim has the expertise and skills to handle this demanding position. Tim is married to his sweet wife Sue. In his free time, he likes spending it with his family, and going for long rides on his Harley Davidson motorcycle.

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Paul Paquette

Service Manager

Paul has been working at Gerry’s Roofing since 2006 and has been in the construction industry for over 30 years. If you ask Paul what is most important, he will say his lovely wife Penny, his children Jennifer & Jake, and his four grandchildren (who he spoils every chance he gets). In his spare time, he likes to golf, play hockey, and travel.

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Roger Guillemette

Project Estimator

Roger has been working at Gerry’s Roofing for over 15 years. Roger is best known for his sense of humour. He is always making his customers feel at ease while they put their trust and home in the hands of Gerry’s Roofing. Roger is bilingual in French which he takes every opportunity to use when talking or singing. He lives in Burlington and enjoys spending time with his beautiful family, playing guitar and enjoys a nice game of golf.

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Franco Maoloni

Project Estimator

Franco has been an Estimator for Gerry’s Roofing since 2018. He brings with him a wealth of knowledge from his previous experience owing his own construction business and landscaping company. He enjoys spending time with his lovely wife Rosa and their two sons, whom he is very proud of. When he is not cooking up a tasty Italian dinner he likes to travel, fish, and work out at his local gym. Franco believes in going over and above for his customers.

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Gail Bauer


Gail has worked at Gerry’s Roofing for many years.  Her dog, Boomer, accompanies her to the office on most days.  She loves music, nature and being involved in spiritual and holistic wellness!

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