Licensed  |  Bonded  |  Insured
Greg and Philip are in the office everyday. Let us know if we can help you. Be Safe, Be Well.









Master Elite Status Residential Roofing Company

GJ Goss Contracting, Inc. is a family-owned home improvement company located in Harford County, Maryland.
Representing three generations of skill and experience, it has been owned by Gregory Goss for 39 years.

We specialize in residential roofing, siding, seamless gutters, replacement windows, and chimney repairs in Baltimore, Harford, and Cecil Counties. We are licensed with the Home Improvement Commission in both Maryland and Pennsylvania and maintain an A+ Rating with the local Better Business Bureau.

For over 28 years, we have been the most trusted roof and siding company in the area. As a leader in the field, we know that homeowners have many options when selecting their contractor. We appreciate the trust and confidence we have received over the years and look forward to working with you.

G.J. Goss Contracting, Inc., Roofing Contractors, Joppa, MD

Customer Reviews

Goss 5 Star Reveiw

Thank you so much for your prompt and kind service. We will absolutely be using your services in the future.

Bob C. - Maryland - Jan. 2018

Thank you for doing a great job on the roof. Your workers were professional, courteous and made sure everything was cleaned up.

Pete and Debbie S. - Maryland - Sept. 2017

As the owner of a business, I know far too well that customers are more inclined to tell you what you did wrong rather than what you did right. For that reason when I receive good service I like to let the company know.

I have worked in the commercial construction industry for 35 years so I know what a well-managed crew is capable of and how they present themselves. Your team showed up on time, were very polite and conducted themselves in a professional manner. I honestly had some doubt, before they started, that all of the work would be completed, the new roof looks great, my yard was cleaned up and, at least to date, not a single nail has been found.

When the old adage-“you get what you pay” isn’t always true, you never get what you don’t pay for. You weren’t the cheapest company I spoke to but where a roof is concerned, I don’t think the cheapest guy is who you want doing the work.

Good job done by a “well oiled machine”. Thank you


Steve H. - Maryland - April 2018

So happy to have the cap and chimney surround replaced on 5/22/2018. Please extend my thanks to Eric and his associate who braved unrelenting rain storms and saw the job to its completion.


Andi B. - Maryland - May 2018

Greg was referred to me by a neighbor and from the time I met him to start date he was great to work with. Easy, no pressure and documented all his work. I’m careful to put my stamp of approval but Greg gets mine.

Monty W. - Bel Air, MD - Dec. 2016

OMG. This company was so helpful and quick to respond to our issue. Patrick, who got our Dish off the roof, was friendly and efficient. We will have them at the top of our list of companies to call for roofing and siding and recommend them to anyone who need this kind of service. Thank you!

Elaine L. - Bel Air, MD - Feb. 2018

Thank you for doing and helping us through our roof project. Giving us some other customers addresses to get a bigger picture of shingle color was a big help. Answering our questions and getting through the process a bigger help.

Carolyn and Charles H. - Maryland - Dec. 2017

We are very pleased with our new roof! Your entire staff did and excellent job. Thank you for a pleasant experience.

Jim M. - Maryland - March 2018

I wanted to let you know how please my wife and I were with the overall experience that your company provided for our home roof replacement project.

From the “no pressure” home inspection and job estimate quote from Scott Scranton, to the vent modifications we discuss with your son Philip and yourself, the pre-project power washing activities of Philip and Patrick, the pleasant office correspondence with Mary Jane, and of course, the professionalism and competence of Eric and demo/installation crew, we are extremely satisfied with the project.

Our house structure is now weather secure and the appearance outstanding. We are planning on listing the house on the market in 2018, and the new roof will certainly provide immediate curb appeal and value to the process.

Charles T. - Maryland - March 2017

Diane and I just wanted to let you know how pleased we are with the job that your company did on our roof. From the secretaries who answer the phones, the estimator who came to the house and the crew who did the roof, they all did a great job. Everything was done as proposed and expected (no Surprises). Your company is only the send company that has done work on our home, which I can say about that. I own a small business and I know how hard it is to keep a company running. This is a great reflection on you. Just wanted to let you know it did not go unnoticed, in this world where people appreciate very little and expect everything. Thanks again to you and your employees for the great job and service.


Paul and Diane C. - Maryland - Nov. 2018

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