Grandparents with granddaughter in front of their home
Local Roofing Experts You Can Trust

Helping Pennsylvanians Since 1967

  • Family-owned and operated for 50+ years
  • Offering residential & commercial services
  • GAF President’s Club Contractors

G. Cannon Roofing and Siding is a leading roofing contractor located in King of Prussia, PA, serving commercial and residential customers across southeastern Pennsylvania for over 55 years.

Residential Services

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Commercial Services

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Trusted by the best

Kevin is an excellent roof inspector, very honest.

Jeannette Shrift

“If you want a perfectly done roof with a long warranty at a low price use these guys. These guys are the best.”

Malcolm Collins

“Great job on our roof! Thank you guys. Experience from start to finish was top notch.”

Concetta Gibbs

“Seamless experience from start to finish. Excellent work and great customer service. Our roof looks better than expected! Will absolutely recommend to anyone.“

Justin Spoont

“We had a fantastic experience with them. The job and subsequent follow up was handled to our perfect satisfaction. “

Simone Collins

Our Promise to You Is Our Best Work Every Time

At G.Cannon, we truly care about our customers. As homeowners ourselves, we believe our neighbors should receive the best possible service at a fair price they can afford. You should feel safe and confident with your exterior home services from start to finish. That is why G.Cannon’s promise to you is quality workmanship at a fair price and without the worry, every time.

Protecting Your Biggest Investments

You’ve made your house into a home for you and your family. You made the investment and you deserve to have the roof, siding, gutters, and windows to best protect it.

It’s proven that a functional and sturdy roof paired with well installed siding will prevent unwanted critters from entering, and shield your home from the outside elements, keeping you warm and comfortable in the winters.

Contact Us

Our process

  • Step 1

  • customer service rep talking to customer

    Phone Call

    Our friendly representative is here to take your call and schedule your free estimate.

  • Step 2

  • getting a free estimate and shaking hands to finalize the deal

    Free Estimate

    Our skilled estimators will inspect your home and provide a clear and detailed estimate for the required services.

  • Step 3

  • Sales Meeting & Follow-Up

    Our estimator will explain the service process and material details and then provide you with all the necessary information to make an informed decision.

  • Step 4

  • Schedule Job

    Our representative will communicate with you and you will be added to our work schedule at the earliest availability.

  • Step 5

  • G Cannon team performs a residential roof replacement.

    Perform Work

    A G.Cannon representative will be available to meet with you at the beginning of the project. A qualified G.Cannon crew will perform the designated work on the scheduled date.

customer service rep talking to customer

Phone Call

Our friendly representative is here to take your call and schedule your free estimate.

getting a free estimate and shaking hands to finalize the deal

Free Estimate

Our skilled estimators will inspect your home and provide a clear and detailed estimate for the required services.

Sales Meeting & Follow-Up

Our estimator will explain the service process and material details and then provide you with all the necessary information to make an informed decision.

Schedule Job

Our representative will communicate with you and you will be added to our work schedule at the earliest availability.

G Cannon team performs a residential roof replacement.

Perform Work

A G.Cannon representative will be available to meet with you at the beginning of the project. A qualified G.Cannon crew will perform the designated work on the scheduled date.

Customer-First Mentality

“We aren’t the company that bothers homeowners to make a decision. We know it’s a big decision for any homeowner, and we understand the investment.” – Gerald Cannon, Owner + CEO

Jerry Cannon // Owner + CEO

Our Core Values

We Guarantee Quality

No Hassle
Commitment to quality
Trusted Relationships
Delivering value

Serving Pennsylvanians for 55+ Years

Where we live is also where we work. Like many of you, we grew up in the Philadelphia area, shopping at the King of Prussia mall, eating at the Italian Market, and going down the shore on the weekends. We understand what it is to be from the Philadelphia area and we work tirelessly to meet the needs of our neighbors.

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Trust in a Licensed & Insured Contractor

Are you in need of a new roof but not sure where to start? It’s unfortunate that there are so many unqualified and untrustworthy contractors out there. Our #1 goal is that our customers feel cared for and not taken advantage of. As a licensed and insured contractor, we offer high-quality workmanship backed with the best warranties in the business. You can trust our highly trained team to do the work right the first time!

Our Team
G Cannon team on roof of a home, replacing the roof.
Father and son outside house, enjoying a stress-free cup of coffee.

Hassle-Free Services Every Time

Reach Out to G. Cannon Today!

Get a Free Estimate