What types of services do you offer?

Services we offer include roofing, siding, windows, and gutters.

How do I know whether I need a repair or a new installation?

With your free estimate, our competent technician will give you the right information to make the best decision for your home and your wallet.

How long will my project take from start to finish?

While not all homes are the same, 98% of roofs up to 3,000 sq ft are finished in one day.

Are you licensed and insured?

Yes, we are licensed and fully insured. PA License: #PA039331.

How soon can you start?

Typically, we can start within 2 weeks from when the contract is signed. Some jobs may take longer due to supply availability.

Lancaster Roofing Services

Roof Replacement and Repair in Lancaster, PA

GAF Master Elite Installers
Competitive roof warranty options
FREE roof inspections

G. Cannon has been a trusted roofing contractor for Lancaster homeowners for decades. From the historic brick rowhomes downtown to farmhouses and single-family homes across Lancaster County, we bring the same crew, the same materials, and the same standard to every project. GAF Master Elite certified, licensed in Pennsylvania (#PA039331), and fully insured. Request your free inspection and see why Pennsylvania homeowners have trusted us since 1967.

Get In Touch With Us!

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TRUSTED BY THE BEST

Kevin is an excellent roof inspector, very honest.

Jeannette Shrift

A person with short gray hair and red lipstick smiles while sitting in a car. There is a partially visible orange star badge in the lower right corner of the image. Trees and parked cars are visible outside the window.

“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

A person stands in a snowy landscape, smiling, wearing a black jacket. They are carrying a child on their back in a blue coat and also holding a Corgi dog. The scene is bright with snow-covered trees in the background.

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

Concetta Gibbs

Two people relaxing with their feet over a rocky cliff edge, wearing casual shoes. A vast ocean and rugged cliffs are visible in the background. One person wears white shoes, the other blue. An orange star symbol is overlaid in the corner.

“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

A golden retriever looks attentively to the side, with a blurred snowy background. The dog wears a plaid collar, and there is an overlaid orange star symbol at the bottom of the image.

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

Simone Collins

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What Lancaster Homeowners Say

At G. Cannon Roofing & Siding, it’s our mission to provide the highest-quality residential and commercial roofing services to Lancaster homeowners. As homeowners ourselves, we want to take the stress off of you when it’s time for roof repairs or replacement, not add to it. Rely on us for all of your siding, gutter, and roofing needs.

Roofing Built for Lancaster’s Historic Homes

Lancaster is one of the oldest inland cities in the country, and its roofs show it. The brick rowhomes downtown and the farmhouses across the county often carry slate or standing-seam metal roofs that need specialized repair, and older homes frequently have multiple layers of shingles that require a full tear-off before new material goes down.

Every project starts with a thorough inspection, not a sales pitch. We document the condition of your decking, flashing, ventilation, and roof covering before recommending any work, and we pull the required Lancaster permits so the job is done to code.

Get free inspection

Close up of shingles installed on residential roof in king of prussia pa

crew installing tyvek house wrap pittsgrove nj

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Customers are Treated Like Family

We understand that a new roof is a significant expenditure, and we will work with you every step of the way to ensure that you are completely happy with your new roof. When it comes to concerns, costs, or timelines, you’ll never be left in the dark. We pride ourselves on providing unbeatable customer service with consistent and transparent communication every step of the way.

Licensed, Insured, and GAF Master Elite Certified

G. Cannon holds Pennsylvania contractor license #PA039331 and carries full liability and workers compensation insurance. We are a GAF Master Elite contractor, a designation earned by a limited number of roofers through installation volume, training, and customer satisfaction scores. That certification means your roof is eligible for GAF system warranties that cover both materials and labor. For Lancaster homeowners, that is real protection, not a marketing claim. Learn about our warranty options.

Get in Touch

A charming two-story suburban house features a brick and siding exterior, complemented by a black front door and white garage. With king of Prussia roofing adding durability, the home boasts a cozy front porch with two chairs, a lush lawn, and a wooden fence under a partly cloudy sky.

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

Free Estimate

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

Step 3

An elderly couple sits at a wooden table facing a man in a white shirt. The couple is smiling and holding hands, while the man holds a pen and paper. Shelves with books and plants are visible in the background.

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

A person is sitting at a table using a laptop while holding a smartphone. They are wearing a denim jacket. Sunlight enters from the left, casting a warm glow over the scene.

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.