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The Mended Wall is a Henniker, NH stone mason owned and operated by Andrew Spielberger, who has more than 30 years of experience in preservation, restoration and stone masonry. The business specializes in evaluating, repairing and restoring old stone foundations, walls and other structures on early American homes and barns, and its Houzz listing describes over 25 years focused on that niche. The handful of reviews on file are consistently glowing. In a 2025 review, a homeowner described hiring Andrew to inspect the foundation of a house before buying it, then bringing him back to repair the entire stone foundation once they had moved in — finishing ahead of schedule and slightly under the projected cost. A 2023 reviewer called the work right on budget, ahead of schedule, and singled out fantastic expertise and skill in old stone foundation repair, and 2022 reviews describe the business as honest, skilled, trustworthy, on time and communicative. Google shows a 5-star average from six ratings, and nothing in the record here is negative. The online track record is still thin — only a handful of reviews cover 2022 through 2025 — so there isn't a large public sample to draw on beyond that consistently positive handful. The business's Houzz profile also still lists an older Weare, NH address and phone number rather than its current Henniker location, worth confirming directly before reaching out. For a homeowner with an antique New England home or barn whose stone foundation needs evaluation, repair, or preservation guidance, The Mended Wall's specialty and the reviews on file point to careful, well-regarded craftsmanship — the kind of niche expertise worth booking well ahead of when the work is needed.
Andrew helped us inspect the foundation of the house we ultimately purchased, and did an incredible job of repairing the entire stone foundation after we moved in. He finished ahead of the expected time and slightly under the projected cost, which, as new homeowners, we very much appreciated. I would absolutely recommend him if you're in need of an expert in stonework restoration.
Wealth of knowledge
Incredible work. Right on budget, ahead of schedule, and fantastic expertise and skill. Would recommend to anyone looking for old stone foundation repair.
Honest, skilled, and trustworthy.
On time. Communicative. Brilliant
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1 change recorded — last scanned Sep 4, 2026.