About Guaranteed Roofing

Guaranteed Roofing is a full-service home improvement contractor providing quality roofing and siding services in Ohio. We pride ourselves on providing skilled craftsmanship, the highest quality materials, and an economical solution for every project. We are very professional, punctual & trustworthy. Choosing the right contractor can be a difficult task, so we are here to help you from start to finish. From the beginning estimate, explaining the materials & workmanship, to the shingle colors & profile choices.

If you’re interested in roof repair, roof replacement, or siding installation for your home, Guaranteed Roofing is here to help. Call us today at 1-513-583-5917 or contact us online to get started with a free estimate!


About the Owner

Jason Grimes is the owner and operator of Guaranteed Roofing

Jason Grimes is the owner of Guaranteed Roofing. Coming from a family of skilled contractors in the home improvement industry, Jason learned the value of hard work and integrity firsthand from an early age working with his father and grandfather in the field. These values were an integral part of creating his own business using those same core elements in which he believes into this day.

Jason is a 1990 graduate of Milford High School and has worked in the greater Cincinnati area since then, establishing himself as a highly respected roofing contractor in the area. Jason strives to deliver a high standard of quality to each and every homeowner.


Meet The Team

Kim Grimes

Office Administrator

Willie Hurst

Roofing Consultant and Project Manager


Customer Reviews

Removal of existing shingle roof, replace with 30 yr architectural shingles, replace 3 skylights with velux updated models, install new sun tube to add natural light to lower level, replace two power vents with new solar power roof vents. Remove bad sheathing due to leaky condition, replace with new wood. Jason provided excellent communication from start to finish. He was knowledgeable, prompt, and very pleasant to work with. The job was finished in one day, testimony to the skills of his crew. I watched the whole process and have 100% confidence in the quality of my roof & skylight installation. At the end of the day they thoroughly cleaned up the area. Overall – exceeded expectations. Would not hesitate to recommend.

E. S. of Cincinnati, OH

Work was quality and the price was fair. The owner did all that he said he would. Will use him again and would recommend them. Over all it went as planned.

J. A. of Cincinnati, OH

Guaranteed Roofing provided an estimate to remove the existing shingles on our two-storey house and to install new shingles on the entire roof. An estimate was obtained from another roofing company also. The professionalism of Jason, the owner of Guaranteed Roofing, the confidence he instilled in us and his honesty left us with no doubt that Guaranteed Roofing was the right company to replace our roof. He also explained every detail of the work that would be done and the warranties that would be provided. He also went over what we needed to do before work started and during the work. In a couple of weeks Guaranteed Roofing started working on our roof. New shingles were installed on the entire roof and the entire job was completed in a day. Upgraded shingle-over ridge vents were installed along the entire lengths of the ridges. Closed valleys (gives the roof a better look than with aluminium valleys), drip edges, and ice & water shields were installed. Starter shingles were installed along the entire perimeter.Guaranteed Roofing did the work very professionally and the workers were very professional. The roofing material was delivered one evening at the time specified by Jason (owner). The material was placed on our driveway (at the exact spot requested by us). The correct shingles ( type and color) were delivered. The next morning the work was started at the time specified by Jason. The existing shingles were removed quickly and with minimum noise heard inside the house. Then the felt, ice shields, drip edges and new shingles were installed quickly and with minimum noise heard inside the house. Guaranteed Roofing thoroughly cleaned up our deck, yard and shrubs after the job – no nails were left on the ground. The work was finished a little ahead of the specified time. Jason was very professional, businesslike, courteous and flexible. After the job, Jason went over every bit of work that was done. There was no disturbance or inconvenience to us or our neighbors. Our new roof looks just great! We highly recommend Guaranteed Roofing.

A. D. of Madeira, OH

Jason and his crew removed our old roof, down to the wood, and installed a new roof in one day. The roof looks great, the work was done on time, and Guaranteed Roofing is a top notch company to work with. I would highly recommend G.R. to anyone and am very pleased with the work that was completed. Jason gave a really reasonable price and completed the job promptly like we wanted. We are still waiting on quotes from other companies that never even responded! Jason got right back to me, did an estimate on the spot (such a relief as other companies do not do this) and set the work date for soon after.

D. D. of Cincinnati, OH

Jason Grimes came out and inspected the roof, took pictures of some damage and promptly emailed them to me, and cleaned out the gutters. Service was done well and no problems scheduling or contacting the company. Jason was professional and listened to all of our concerns and we feel he went the extra mile to make us satisfied. No complaints here at all!

E. W. of West Chester, OH

I was really impressed with the job from start to finish. The attention to detail was amazing and the clean-up even topped that! I would recommend Guaranteed Roofing and the crew We had to anyone.

J. M. of Fairfield, OH

Guaranteed Roofing inspected roof to identify any issues but did more than i expected by making slight repairs without any additional charges. after updating me he also sent pictures of the roof to me went very well. He called right away to set up the appointment, very polite, professional. inspected and did some repairs. took pictures which he forwarded to me with his comments.

D. P. of Cincinnati, OH

Our salesman, Jason, was the only contact person from several companies which bid who was on time, who returned calls in a timely manner, and walked us through the process. Our crew, lead by Francisco, was fast, hard working and of high quality.

J. R. of Cincinnati, OH

Guaranteed Roofing performed a tearoff of the old shingles, replacement of some damaged roof plywood, installed new roofing upgraded shingles, added new upgraded roof ribbon vents, replaced and repaired flashing on chimneysand the entire roof, etc., and cleaned up the area spottlessly after the installation. All material used were of the highest quality. My roof had been severely damaged from windstorms during the spring. I received three estimates but contacted Guaranteed Roofing after reading the reports on Angie’s List. Jason (the owner) scheduled an appointment with me to look at the roof. He came as scheduled on time and checked out the roof. He gave me an estimate that was lower than the previous three that I had gotten (this was for upgraded shingles). He than explained in detail to me what would be involved in replacing the roof and the type of materials and warranties that were available. He took time and helped me to select the best color and materials that suited the style and color of my house. None of the other companies had done this as they just gave me a value estimate. I decided to go with Guaranteed Roofing at that moment and Jason promised to contact me soon to set the work appointment after reviewing their schedule. As promised I received the call to schedule work and have the materials delivered. The roofing materials were delivered in the specified location on the agreed upon date. Jason called me on the scheduled work day before the crew arrived to ensure I knew they were coming. Once the workers arrived they started immediately and were probably the hardest working crew I’ve ever seen. They worked the entire day and installed the new roof. There was no interruption or disturbance to me. Jason was there and I checked in with him periodically where he gave me status as the work progressed. They completed by late afternoon as promised. They also cleaned up the debris spottlessly and you could not even tell any work as been done. I was very pleased with the outcome and my roof is simply beautiful.

S. D. of Cincinnati, OH

Guaranteed Roofing did tear off and replacement of our roof. Excellent work from start to finish. I would highly recommend them.

J. M. of Milford, OH


Our Awards

Every homeowner wants a contractor they can trust, which is why at Guaranteed Roofing we're proud of the recognition we've received. We hold an A+ Rating with the BBB, and we've won the Angie's List Super Service Award four times. We are also an Owens Corning Preferred Contractor, JamesHardie Preferred Contractor, and CertainTeed Shingle Master.

When combined with our decades of experience, trained and certified employees, and customer first focus, we believe we're the best company to help you with all your roofing and siding needs!

The Better Business Bureau Accredited Business

CertainTeed ShingleMaster

James Hardie Preferred Contractor

Owens Corning Preferred


Our Affiliations

Angie's List Super Service Award 2010 - 2017

Best of Houzz 2010 - 2017

Angie's List Super Service Award for 2010 - 2017