StoneBase Masonry - Basement & Foundation repair specialist Boston
Local business · 4228 Washington St, Boston, MA 02131, USA
Their work
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Call (617) 906-1237Visit websiteSee on GoogleYou reach them directly — we don’t take a cut.
Verified record
- 9 reviews in the last 6 monthsNo negatives
- 33 customer photosOf completed work
Highlights
- Consistent 5-star reviews — 20 Google ratings, zero negative in the past six months
- Repeat customers — one homeowner hired them for a third project
- Century-old foundation work — repairs on houses built in 1888, 1927, and pre-1900
- Handles scope creep — one job grew from 3 to 10 days, finished anyway
- Written warranty — offers a 10-year warranty on a foundation repair
- Recent review history — reviews span only 8 months despite a 2002 founding claim
- Single review platform — nearly all reviews sit on Google, echoed once elsewhere
StoneBase Masonry works Boston-area homes with the kind of problems that come with old housing stock — crumbling granite-block foundations, cracked century-old mortar, chimneys overdue for repointing. The company, based in Newton and Arlington, says on its site that it's operated since 2002 and covers basement, foundation, chimney, driveway, and roofing work. Jonathan is the name that shows up running nearly every job. Its Google page shows a 5.0 rating from 20 ratings, and the nine most recent reviews — all from the first half of 2026 — carry no negative reports and the same handful of specifics keep repeating. A driveway sinkhole got diagnosed on the spot and repaired against a detailed estimate; a three-story brick walk-up's front got re-pointed with joints reviewers call clean and consistent; a 120-plus-year-old granite-block foundation and its chimney got repointed in the same job. On a fieldstone foundation, the crew's own inspection matched what the homeowner's structural engineer had already found, and a quote followed the same day. One customer is now on a third project with the company and keeps returning for the same reasons — a responsive Jonathan and a clean site when the crew leaves. When a straightforward foundation job turned up worse problems than expected, the crew worked ten straight days instead of the three originally quoted rather than leave it half-done, and a separate repair on a 114-year-old Victorian came with a 10-year written warranty. Every one of the 19 written reviews on file dates from October 2025 onward — an eight-month window, short for a company that says it's operated since 2002. Nearly all of that history lives on Google, echoed by one outside mention, without much independent corroboration elsewhere yet. For century-old foundations, chimney repointing, or basement waterproofing that goes beyond a patch, the recent reviews back the pitch — worth asking how today's crew connects to the company's longer, self-reported history before booking a multi-week project.
Read the comments
Most recent comments
- 5.0Jun 22, 2026
This was our third project with Stonebase Masonry & Waterproofing, and at this point I’m starting to joke that my entire house is eventually going to be made of stone simply because I only want to work with them.<br><br>Every experience has been excellent. Jonathan is professional, communicative, respectful of our property, and the workers always leave the work area clean when the job is done. They complete projects in a reasonable timeframe and handle coordination with inspectors, which takes a huge burden off the homeowner.<br><br>What really sets them apart is how they handle the inevitable surprises that come up during construction projects. When something unexpected happens, they don't create stress—they absorb it. Jonathan figures out solutions, communicates clearly, and keeps the project moving forward. I never feel like I'm managing the project or chasing answers; he takes ownership and makes the process as smooth as possible.<br><br>Home improvement projects can be stressful, but I've genuinely never felt stressed working with Jonathan because I know he'll handle whatever comes up. Quality work, great communication, and a team that stands behind what they do. We wouldn't hesitate to hire them again for project number four.
— Michael GilesView on Google Reviews ↗ - 5.0Jun 10, 2026
We gave Jonathan a challenging job. Our house was built in 1888. I wouldn’t be surprised if it was 40+ years since anyone paid attention to our foundation. It wasn't in good shape when we bought the house 22 years ago. We always had a layer of dust on the floor since the mortar was crumbling. I could feel the wind come through. We called the basement “the dungeon."<br><br>Jonathan responded as soon as I called. He came that same day to look at the job. I got a quote right after that. And when I approved the quote, he let me know exactly when his crew would arrive. It was so easy.<br><br>I loved his team. They showed up at 8 AM and left at 4 PM. They were extremely considerate, offering to help me with my grocery bags when I got home from the supermarket (even though they were in the middle of work). They left everything much cleaner than they found it. My washer and dryer, which were full of dust and detergent, are now like new.<br><br>I had a closet wedged into a back corner and attached to the rafters with screws. It made the job more complicated - his team had to disassemble the closet. It was not an issue.<br><br>I had asked Jonathan to repair one front step. The crew repaired all four.<br><br>The job lasted about a week. Every night I was excited to come home and see the progress. I'm especially excited about the new sump pump.<br><br>You can see what a beautiful job Jonathan's team did. I would highly recommend Stone Base Masonry. I had a wonderful experience.
— Julie DiopView on Google Reviews ↗ - 5.0May 23, 2026
We had a great experience with Stonebase Masonry from the free estimate through the completion of the job. Jonathan was professional, courteous, and knowledgeable throughout the entire process.<br>We had a sinkhole in our driveway, and Jonathan quickly diagnosed the issue and provided a detailed estimate along with a clear scope of work. Before the repair began, he explained the full extent of the problem and walked us through the proposed solution. His team then got right to work.<br>Upon completion, the area was left clean, and the repair blended perfectly with the surrounding driveway. The quality of workmanship and communication exceeded our expectations.<br>We highly recommend Stonebase Masonry and would gladly hire them again.
— Evelyn RobinsonView on Google Reviews ↗ - 5.0May 2, 2026
Stonebase Masonry did an outstanding job re-pointing the front of our three-story brick walk-up. Their workmanship is clearly top-notch—every joint is clean, consistent, and blends perfectly with the original brick, giving the building a refreshed, solid look. Just as impressive was their communication throughout the project: they were responsive, clear about the process and timeline, and checked in regularly to make sure we were satisfied at each stage. The crew was professional, punctual, and respectful of the property. We highly recommend Stonebase Masonry for anyone seeking high-quality masonry work and truly excellent service.
— Joe RoachView on Google Reviews ↗ - 5.0Apr 8, 2026
I interviewed several masonry companies to repair the foundation of our 114-year-old Victorian. We're glad we chose StoneBase Masonry. Jonathan arrived promptly with an experienced crew who knew how to repair mortar deterioration on an old house; they did far more than promised! Best of all, their work comes with a 10-year written warranty. Highly recommend!
— Diane CroftView on Google Reviews ↗
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Added 19 new comments, added 66 new photos, established rating 4.2
- behind the score: Recent review history — reviews span only 8 months despite a 2002 founding claim