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A field stone chimney had leaked for 12 years before a recent customer called Webster Masonry. Mark inspected the mortar, found the cracks and said grinding out the affected areas and replacing the mortar should stop the leaking; the customer said it did, and the inside stayed dry after a few heavy rainstorms. BBB lists Webster Masonry, LLC as a Webster, Massachusetts mason contractor with 52 years in business and Mark Mahan as owner. The company says it offers residential and commercial masonry, including custom brick and stone work, across Massachusetts, Rhode Island and Connecticut. Its Massachusetts home improvement contractor registration, number 199829, is active on the state registry. A recent customer said Mark and his brother replaced three bricks that had lost their top part over the winter and applied a sealant to the entire chimney. A recent customer wrote that Mark worked with gray chimney bricks rather than traditional red ones, and that the property was left just as clean as when they arrived. Before listing a house for sale, a recent customer said Mark and Jason fixed the garage and repaired the back steps in a time crunch. A 2024 customer described a simple external chimney rebuild: called on a Monday morning with a spot and finished on Tuesday afternoon. That 2024 customer said Mark took pictures of the roof shingles around the chimney that needed repair, and that the price was half of what a big regional company had quoted. A 2023 customer said they put in granite stairs and a 9 ft by 14 ft paving-brick walk coming off them. A 2023 customer whose roofer referred them said Mark gave two options for a cracking, crumbling chimney and did the job at a fair price. A 2022 customer said the company replaced old tile on a living room wall with air stone. A 2024 customer said they had to be patient and wait for a chimney repair by Mark, and called it worth the wait.
Our chimney had lost the top part of three bricks due to last year’s terrible winter. Mark and his brother replaced the bricks and applied a sealant on the entire chimney to prevent any further damage to our chimney. They did a great job! We will certainly recommend Webster Masonry to our neighbors if they ever need any masonry work.
Webster Masonry was very friendly, courteous, professional, and respectful of my property from start to finish. They did a fantastic job on my chimney and I couldn’t be happier with the results. Mark was especially great to work with. He was willing to work with the gray chimney bricks rather than the traditional red bricks, even though I know it was more time consuming. I truly appreciate his attention to detail and willingness to accommodate what I wanted. They also did an excellent job cleaning up the property when the work was completed—it was just as clean as when they arrived. I highly recommend Webster Masonry to anyone looking for quality workmanship and excellent customer service. They did a phenomenal job on my chimney and I’m extremely happy with the finished product!
Mark and Jason did a wonderful and thorough job. They were quick to respond, quick to schedule, communicated clearly and followed through on their work. They were able to quickly fix our garage and repair our back steps in a time crunch before we listed our house for sale. They really eased our anxiety, and I would highly recommend them for any job!
Made our vision come to life! This area was tough to dig out in some spots but Mark and Jason were super thorough and made sure everything was perfect. Wanted to have project done before an event we were hosting and Mark got it all done ahead of schedule! Exceeded expectations and would definitely recommend. While they were here, they also noticed a chip in our chimney and helped us seal it to prevent future damage and issues that may have occured.
We had a leak in our field stone chimney since we bought our house 12 years ago. Over the years we have had several contractors, roofers, other masons look at the chimney and try their solution. Having spent a lot of money trying possible solutions to suspected causes the leaks never went away. After getting a roof replacement due to the rotted wood from years of water, the leaks continued and I was determined to get the chimney fixed right. Thankfully Mark carefully inspected the mortar, found all the cracks and told me with confidence that grinding out the affected areas and replacing the mortar should stop the leaking. And it did! After a few heavy rainstorms I confirmed the inside was dry. Thank you Mark for your excellent expertise!
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3 changes recorded — last scanned Sep 30, 2026.
Patios and retaining walls4.9
Crew arrived exactly at 8 a.m. every day4.9
Landscape stone wall repair4.8
