This is not just an advertising claim or motto. This is how we do business every day. People are often surprised to find out that we do not install asphalt shingle roofing or commercial flat roofing. All of our employees are trained on slate and copper, and all of our employees work on slate and copper every day.

We are very proud of our employees and very proud of the work we perform. All of the photos you see on our website are actual photos of our projects, no stock advertising photos of someone else’s work. Feel free to contact us if you would like to see photos or details of a specific type of work that you can’t find on our site.

Bukarest Romania IFD Convention.


Mahan Slate Roofing has been in business since 1979 and has evolved into one of the premier slate and copper roofing companies in the New England region. We pride ourselves on our knowledge of slate and copper roofing, and continue to study and train to keep our skills current.

John Mahan in Belfast Ireland at the IFD Convention.

To ensure we have the most current understanding of the industry, we work closely with The Slate Roofing Contractors Association, (where John Mahan is a current board member), The National Slate Association, The National Roofing Contractors Association and The North East Roofing Contractors Association. We’ve literally traveled the world to attend roofing conventions to learn as much as possible about the traditional installation methods of our specialty, as well as learn any new processes and techniques. Watch our news page for to see info on any upcoming events.


Jack Mahan


John Mahan

Vice President

Rick Mahan

CFO/Office Manager

David Mahan

Residential Sales & Maintenance

Mike Bareiss

Safety Coordinator/Purchasing Agent

Stacey Canady

Administrative Assistant/Project Coordinator

Jesse Vanek

UX Developer

Dina Brunetti

Facilities Manager

Sawyer Mahan

Aerial Photographer

Greg DeSousa

Field Supervisor

Artie Solowinski

Field Supervisor

Jeremy Becker

Senior Foreman

Blake Bubar


Fabio Pedroso


Kevin Andaluz


Drew Braska


Steve Tessier

Restoration Foreman


View some of the written testimonials we have received from our satisfied customers. Given the chance to work for you, we will exhibit the same professionalism that convinced these customers that we were the right choice for their roofing and copper needs.

“Thanks for doing the work according to schedule. Your workers were pleasant and competent and the results look great.” 

Pierre H. – Royalston MA

Crew Leader: Artie Solowinski

Project Date: 10-7-19

“I’ve been monitoring the progress of the job over the last week and I just wanted to tell you what a great job your guys are doing. They are careful, thorough and good craftsmen. I’m looking forward to not having any rain in the room below, and I’m sure this will take care of a problem that I’m told has been going on for decades. I’ve only been here for two years so I wouldn’t know about that, but its satisfying to see this get done.” 

Pieter R. – Hartford CT

Crew Leader: Jeremy Becker

Project Date: 9-25-19

“Thanks for the good work! Your crew was quick, quiet, well done. The crew was very very professional and they did very good work. Thank you very much” 

Bill L. – Easthampton MA

Crew Leader: Drew Braska

Project Date: 8-7-19

“Hi Stacey – We are very happy with the entire job. From our first meeting with David, your prompt scheduling to accommodate our pending closing, very friendly crew with quality workmanship, receipt of appropriate evaluation letter, and all on time and according to the cost proposal. Great job and we will certainly call you again when needed and gladly recommend your service to others.  – Thanks for everything again!” 

Charlie D. – Holyoke MA

Crew Leader: Josh Keaton

Project Date: 7-10-19

“Thank you so much! The roof looks so good. I’m so pleased!” 

Bonnie R. – Granby CT

Crew Leader: Kevin Andaluz

Project Date: 5-1-19

“Thanks so much for sending such professional fellows to work on our home. Fast, genial roofing experts; it couldn’t have been a better experience from our perspective. All best wishes.” 

Anne W. – Plainfield MA

Crew Leader: Fabio Pedroso

Project Date: 4-8-19

“Very happy with the work done, work crew was great – professional and friendly. I’ve had many compliments on the job and have recommended Mahan roofing to our neighbors with slate roofs. Thanks! 

Rosalie P. – Holyoke MA

Crew Leader: Josh Keaton

Project Date: 3-31-19

“Your crew did an excellent job and cleaned up after themselves beautifully. Thank you!!” 

Pam H. – Hardwick MA

Crew Leader: Drew Braska

Project Date: 3-21-19

“Although putting on new gutters was not high on our list of how we wanted to spend money – we are lucky to have found you through Jake. Thanks for a wonderful job and for being so nice.” 

Bonnie B. – Lexington MA

Crew Leader: Greg DeSousa

Project Date: 2-27-19

“Thank you for your good work. The water flow has stopped in the attic. Your crew was very professional, easy to work and communicate with. They were efficient and safe in their work style. I will recommend you to my clients” 

Dean A. – Williamsburg MA

Crew Leader: Kevin Andaluz

Project Date: 11-28-18

“Please let the appropriate people know that the crew that did the patch work for us were phenomenal!!  They were very respectful and knowledgeable and answered all of our questions. I would like to thank them, and David for sending a crew over there asap to help with our issue.  We will be doing more work with Mahan.” 

Gloria M. – Chicopee MA

Crew Leader: Kevin Andaluz

Project Date: 11-14-18

“Thank you for another professional job on the completion of the valleys. The two gentlemen who completed the work were very hard-working and dedicated. They completed the work, and cleaned up everything afterwards. It was a pleasure doing work with them. Thank you.” 

Barbara G. – Holyoke MA

Crew Leader: Drew Braska

Project Date: 10-19-18

“Just wanted to thank you for the beautiful work!” 

Donna M. – Greenfield MA

Crew Leader: Greg DeSousa

Project Date: 10-19-18

“Thank you so much for helping me with a serious problem. Your worker Kevin did a wonderful job. I appreciate everything that was done for me.” 

Clair M. – Longmeadow MA

Crew Leader: Kevin Andaluz

Project Date: 7-2-18

“All the guys were very professional. Blake was great and so was his main assistant (Jaime). Mahan Roofing is the only slate roofing referral I would ever share, for sure! Thanks again so much! 🙂 ” 

Bill N. – Haverhill MA

Crew Leader: Blake Bubar

Project Date: 6-7-18

“Thank you! Thank you! Thank you!” 

Carol B. – Longmeadow MA

Crew Leader: Greg DeSousa

Project Date: 5-9-18

“Thank you! I am very happy to have you caring for the roof! Your quick response to my unusual water issue was greatly appreciated!” 

Margo K. – Hartford CT

Crew Leader: Kevin Andaluz

Project Date: 4-19-18

“I have only accolades for the crew. They worked diligently, and well together, communicated well with each other, and were careful and deliberate in their setting up the scaffolding and diligent in their operation. They clearly knew what they were about, and what they were here for, and they cleaned up everything as if they had not even been here. And not to be overlooked, they respected my garden. What more can I say??”

“Your men did a superb and beautiful job, wishing that I could see up close more of the finished product, but the fabrication from the bench was impressive. They are very nice men, too. They reflect well on you all in Springfield. Thank you, thank you.” 

Sandra T. – Hartford CT

Crew Leader: Kevin Andaluz

Project Date: 4-12-18

“Very well done job. The crew was very friendly and helpful. Very efficient” 

Mark O. – Russell MA

Crew Leader: Fabio Pedroso

Project Date: 4-9-18

“Your crew did excellent work, clean up, and were very respectful of our routines during the work done in the spring” 

Kathi R. – Southampton MA

Crew Leader: Kevin Andaluz

Project Date: 3-9-18

We just wanted to reach out to say thank you again to you and your crew for coming out to take another look at our roof. I’m sure they had things they would much rather have been doing at 5pm on a Friday. Nonetheless, Blake was professional, friendly, and able to quickly find and address the issue. We really appreciate that you were willing to work with us to get the leak taken care ahead of our scheduled insulation work, and we’re looking forward to working with you again in the future. ” 

Stephanie O. and Mike G. – Greenfield MA

“I am very pleased with the work, good job!  Blake and Xavier were terrific, very polite and answered all my questions. Thank you again.” 

Mark C. – Manchester CT

“We wanted to let you know that Blake and Xavier did a great job representing your company during their time here – not only were they professional, competent, and hardworking, but they were also friendly, quick to smile, and informative whenever we had any questions.” 

Stephanie O. – Greenfield MA

“Just wanted to thank you for the very fine job of fixing the leak that’s been there for 2 years. Excellent crew, they did a great clean up, and the cost  was to the penny of what you gave us. Highly recommended. A+++++++++++++”

Shirley & Frank P. – Springfield MA

“You did indeed exceed our expectations. Thank you for putting our roof back in good shape. You will be highly recommended.”

Stuart H. – Ashfield MA

“Thank you David. Everything went very smooth, and you were great to work with as well as the crew! Thank you for the excellent follow through!.”

Sam W. – Cambridge MA

“I would definitely highly recommend Mahan Slate. Fast, professional, clean. Your guys did a fabulous job matching up the old slate and installing the vent for the plumbing stack. Love the copper vent. If 4 inches of rain the following night wasn’t proof of a great job, I’m not sure what is. I’m so happy your guys cleaned up after themselves. I can’t tell you how much a difference that makes. It seems like a rare thing nowadays. So yes, you have exceeded my expectations.”

Nate L. – Easthampton MA

“Your workers were very professional and did exceed our expectations. They replaced the valley as well as some damaged slates on the roof. They answered all of our questions and were kind, polite, and very hard-working. They cleaned the work area when the job was done as well. Should we ever need more slate work done, we will be very happy to call Mahan Slate Roofing back. Thank you.”

Dan G. – Holyoke MA

“I just spoke with Stacey, she mentioned you were on the phone with a client. I just wanted to tell you how lucky you are to have Stacey. I know she probably gets a ton of sales calls daily, but she was so sweet and considerate, she made my day. Those kind of employees are hard to come by!”

Raquel M – Account Exec

I’ve been meaning to get back to you… everything is great. Your crew was professional, answered my questions, and cleaned up remarkably. We are very pleased and have gotten comments from neighbors about how nice it looks.”

Andew V – Northfield MA

” … I have nothing but praise for the guys. They were here bright and early every day, worked hard, were friendly and polite. While I can’t speak for the workmanship itself, I can certainly say the workers themselves were exemplary.”

Carol K. – Springfield MA

“I personally did not talk with the guys, but my dad did. My dad’s a contractor so he’s very well informed – he said that he was a really nice guy, very professional, and extremely knowledgeable about the job and was willing to answer questions! Thanks.”

Erica S. – Ludlow MA

” Greg and the guys did a great job. They left the place clean and the gardens looked like they had never been there.”

Mark R. – West Hartford CT

“The guys were great when I stopped over to see how progress was going. Very professional.”

Alison S. – Greenfield MA

“The roof came out great – we’re very happy with it. Blake and the other guys were great, they managed to get all the work done without any significant impact on our daily routine.”

Neville K. – Springfield MA

What a great surprise it was to find your message on our phone–what a classy touch to hear from “the boss” to see if the job had been completed to our liking.

We couldn’t be more pleased with the work Mahan Slate Roof has done for us from start to finish. Beginning with your personal emergency visit two days after the storm to put in the temporary patches (they held off all the summer showers) on our battered roof, through David’s quick email reply, right down to the early morning arrival of two trucks and a crew led by Jeremy and Fabio to finish off the job. We have a pristine roof with a shiny new copper cap. The lawn was meticulously cleaned up. We enjoyed their friendly, good humored company at the end of a long and successful day when they paused to chat with us. How wonderful to hear Jeremy remark that the whole roof was really in remarkably good shape. How great it was to be able to tell him that that was because you have been looking after our roof for the last eighteen years since we bought the house. Again–thanks for excellent, professional, friendly service.”

Suzanne H. – Heath MA

“Thanks very much – Very happy with the work.”

Cathy B. – Longmeadow MA

“Thank you Jack and crew! Excellent Job! We appreciate everything!”

Larry T. – Suffield CT

“Thanks so much. Wish I had found you sooner.”

Marjorie O. – Worcester MA

“Really appreciated all your help this winter!!!!”

Laura P. – Longmeadow MA

“Thanks so much for taking that snow and ice off our roof areas. When Deb called you to tell about our water leaks in the house, I certainly didn’t expect you to respond so quickly – but you did! I can imagine how busy you guys were. I really appreciate your service. Thanks again!”

Jon D. – Leeds MA

“Thank you so much for your prompt and professional service!”

Alisha B. – Longmeadow MA

“Thank you so much. You do a very thorough job. I feel very secure that our roof is fixed the right way.

Erna M. – Holyoke MA

“Nice staff, nice job!!”

Jackie C. – Holyoke MA

“Extremely pleasant personnel – only complaint is that they would not let me provide them with coffee.”

Carol R. – West Hartford CT

“Thanks for taking care of our roof. Jeremy and Fabio were very sweet, quick and professional. Have a good summer!”

Christine M. – Easthampton MA

“Again – you and your crew are delightful to do business with. It is rare today to find a company that makes the customer #1

Val B. – Enfield CT

“Overall a very positive experience. Brett & Wes were terrific, professional and went out of their way to accommodate us. Thank you.”

Frank K. – Avon CT

“Thank you to David. Responsive, knowledgeable, and hard worker. Good representative of the company.

John H. – Longmeadow MA

“Extremely satisfied with work done and very impressed with the young men employed by you. Thank you again.”

Ernest P. – Hatfield MA

“Jeremy and Fabio were hardworking. professional, courteous, and respectful.

Marylou M. – Greenfield MA

“Thanks so much for completing the work. It has been a pleasure working with you all these years. I have always enjoyed the quality of your work and the integrity which you have consistently practiced. I am confident that the work you undertake will be completed – and completed properly.”

Howard K. – Springfield MA

“David, I can’t thank you enough for dealing with our leak issue so quickly. Our bathroom contractor, who was there, told me that the main issue was the blown out windows in the cupola. That’s not even your problem! That’s really above and beyond anyone’s expectations. Thank you! I will hopefully not be calling you for a long time but in the mean time we hope you have the Happiest of Holidays.

I will do my best to swing business your way in 2014 and beyond. Take Care.”

Christina S. – Canaan NY

“Great service by friendly employees. Roof looks great! Advice for the attic insulation was very helpful.”

John D. – South Hadley MA

“Thank you very much for a great job. I will pass along to the new owners my strong endorsement of your work. It’s been a pleasure working with you for the past 15 years. I have a conventional roof on my house, but will call you again should I acquire another slate roof.”

Beth N. – Granby CT

“The quality of the work was exceptional. The crew were very hard working and kept the area very clean. The crew responded quickly to any questions. Everything was quickly addressed. Neighbors also complimented the crew and finished product.”

Dave C. – Branford CT

“Very professional. Thank you.”

Sally A. – West Hartford CT

“Great job as usual! Thanks for fitting me in and doing such a great job. Excellent carpentry work as well. Thank you.”

Mark D. – Hartford CT

Excellent work, would recommend whole-heartedly. Your staff is the most courteous and professional we have ever had the pleasure of doing business with.”

Mark B. – Enfield CT

“One of the most polite people I have ever had work at my house.”

Peter D. – West Hartford CT

“Once again we are very satisfied with the professional, top quality service you folks provide. We hope you will continue to help us through the years to come!!

Jim B. – Lenox MA

“Thank you very much. We will call if we ever need you. The guys were great. Thanks for all your help!”

Jay and Sharon – West Hartford CT

“Absolutely wonderful experience.”

Charlie M. – Conway MA

“Quiet, orderly, and non-stop!!! Hardly heard a hammer!

Jean B. – Springfield MA

“Outstanding workmanship, responsive personnel, good value, and always professional.”

Mark P. – West Hartford CT

“Your company did a superb job every step of the project. The references I checked were outstanding and you lived up to them.”

First Baptist Church – Woburn MA

“Your crew was very professional and courteous. The job looks very well done!”

Pete W. – Ashfield MA

“Once again, the best sub-contractor we’ve had.”

Mark D. – Hartford CT

Another great job. Thank you!

Steve B. – Longmeadow MA

“Jack, Wonderful job – Beautifully completed, exceeded expectations!”

Tom W. – Longmeadow MA

“I am very pleased with the quality of workmanship and all the different jobs you did for me on the house… Moreover, I can see that this is a company of INTEGRITY and I believed every word you said. That makes a big difference. PS – I will recommend you to everyone I know”

Marietta D. – Winchester MA

“Thanks again. You guys were great!”

Gina I. – West Springfield MA

“You folks are terrific!! We are extremely pleased to have found you.”

Jim and Sandy B. – Lenox MA

“Couldn’t have been accomplished in a more responsible and considerate manner – totally professional – very pleased.”

Bob M. – Springfield MA

“Very good job and completed in quality time.”

Assumption Church – Chicopee MA

“You guys rock. I will recommend you to any who need your work.”

Theo B. – Amherst MA

“Great job. Workers were exceptionally friendly, polite and customer focused.”

Steve U. – W Hartford CT

“Thanks for the great work that was done. The guys did a wonderful job. Thanks again.”

Gloria C. – Hartford CT

“Thank you for sending a well trained crew to do the proposed job. They were always on time, hard working, courteous, efficient and super neat. We are completely satisfied and will be calling you soon to work on the bell tower as proposed.”

John E. – Stow MA

“Thank you very much. We will be in touch soon. Your guys did a great job on the roof! We are very happy and impressed.”

Jay M. – W Hartford CT

“Thanks for being so prompt in repairing Janet’s slate roof. We really appreciate your quick response. Thank your son as well.”

Sally & Bob H. – W Hartford CT

“John, Greg and all the crew were exceptionally neat and were extremely mindful to work around plants carefully. They could do nothing to improve.”

Fran M. – Bloomfield CT

“The crew did a wonderful job. We are very happy with the results. If we have any future problems we will be calling you again. I would highly recommend you.”

Ruth H. – Gilbertville Public Library MA

“The Mahan Company is extraordinary in all aspects. Response to issues of concern is prompt and considerate. Personnel assigned to the execution of contracted work are personable, knowledgeable and totally respectful of the client and client’s property. Outstanding company!”

Madeline P. – Holyoke MA

“Response to need and conduct of personnel was exemplary…. Thank you.”

Ruth F. – Westfield MA

“Excellent to work with! If all businesses worked in your fashion, we would all be better off. Thank you.”

Sabra N. – Granby CT

“The crew and you Jack did a magnificent job! Thank heavens we still have workers that take pride in doing a good job. This was perfect.”

Gloria M. – Longmeadow MA

“I will highly recommend you to anyone I know. We were extremely pleased with the entire process and will be calling you for future work on “this old house.”

Denise W. – Stafford CT

“Many thanks to you, John and your crew. I’m sure I’ll be in touch with you regarding other roofing projects. Certainly I’ll recommend you highly.”

Mark M. – Springfield MA

“I’m happy to say that my attic has remained dry throughout all the torrential rain we have had lately. Thanks for your prompt attention. It’s not often I feel my money has been so satisfactorily spent.”

John D. – Springfield MA

“I am very pleased with the overall professionalism of John and his company. I will continue to use Mahan Roofing for all my roofing needs and will refer him to future customers. Thank you.”

Mary R. – Westfield MA

“Thank you for your very professional work. You came well recommended and we are very glad we spent a little extra money for far superior work.”

Lauren V. – Springfield MA

“You run a first class outfit. You should be proud of your crew. I would like you to do the work proposed on the barn too when you get the chance.”

Louis M. – Amherst MA

“Just a short note to thank you for taking care of my mother’s slate roof. We will be back to you to replace the copper valleys. It was a pleasure to have you do the work for us.”

Jim T. – Enfield CT

“Your employees are a true reflection of how to run a professional business. I had no doubts on your work, being that Joe I. recommended you. When your guys were on the roof in that heat they never wasted any time. It was refreshing to see young people with work ethics like the two you sent to work on the house. Being on a fixed budget, and being disabled, I thought the amount was a little high, but after seeing your guys work so hard, I have come to the conclusion I had received exactly what I paid for. A job done by professionals”

Ed B. – Stafford Springs CT

“My husband and I are very grateful for the excellent job that Jack and his crew have done on the roof of our historical home built in 1793. Our previous contractor left us with an unacceptable and disastrous mess. Mahan Slate Roofing Company was professional in every way and went out of their way to make sure that they gave us what we wanted. We are very happy with the outcome and would recommend them to everyone. Thank you so much.!”

Jean & Bob T. – West Brookfield MA

“What an incredible web site! It certainly has changed since you first put it up. The West Hartford home is just spectacular. We also saw you on the PBS show “Making It Here” – impressive!

Every promise you make to your customers is absolutely true. I wish every contractor had the level of professionalism, creativity, passion for their craft, and genuine concern for their customers that you and your crew have.”

Gayle W. – Springfield MA

“We are so appreciative of your taking care of Adam’s roof and gutters. I know how busy you must be. I’m sure you have more than enough business in this area. It’s a bit of a drive out to Northampton, and it is not usually a big job. But you always oblige us – and you do a great job! “

“Thank you so much for fitting Adam in to your schedule. You’re the best!”

Philomena N. – Longmeadow MA

” I want to thank you once again for the fine work you did in tuning up my roof. The job was done neatly, completely, and in a timely fashion, and I’m entirely satisfied with the results. Moreover, I want to extend my appreciation again for the superior service you displayed in every single aspect of this project.”

“… I’m sure that in a few years, my vintage roof will need a little more work. You may be sure that I will call you immediately. Furthermore, every chance I get I will recommend Mahan Slate Roofing to Holyoke neighbors and friends and acquaintances throughout the Pioneer Valley.”

David W. – Holyoke MA

“My husband and I were incredibly impressed with all aspects of your business. Your initial quote was thorough and comprehensive and the job was professionally completed. The fellows on the site were polite, quiet, well-mannered and very hard working. In fact, even a neighbor commented recently on how impressed she was with your company and your work. We will certainly be repeat customers.”

Kevin & Sharen L. – West Hartford CT

“Your son did a fantastic job. Looking forward to having the valleys started next year. Thank you very much.

Sharon S. – Holyoke MA

“We were so happy with the 2 gentlemen who did this project. They were prompt, hardworking, clean, and courteous. You should be very proud having them represent Mahan Roofing. Thank you for an exceptional job.”

Betsy T. – Longmeadow MA

“We feel like we can trust you to do a good job and stand behind the work done. That’s worth a lot.”

Michael O. – West Hartford CT

“The two young fellows that worked on the job were very pleasant, answered all my questions and showed interest in a customer’s concerns. They took pride in their workmanship and left the job site clean daily.”

Fred D. – Somers CT

“… Both John and I are very happy with your work, but especially the way it is done, as well as your personnel. Please thank them for us. As my dad used to say, you are a gentlemen, and very conscientious of your work and how it is accomplished. It has been a pleasure meeting you and your team workers. A true gentlemen you are. Thank you.”

Laurette & John R. – Palmer MA