Arta Foundation Repair

Arta Foundation Repair is a Londonderry, NH outfit that homeowners call about a wet basement, a cracked slab, or a sump pump that's failing — and the recurring detail across dozens of reviews is that Stavros Charalambous shows up himself. The company describes itself as a father-and-daughter operation, run by Stavros and Athena, founded in 2019 and drawing on more than 30 years of construction experience; it serves New Hampshire along with parts of Vermont and Maine. The history behind that is substantial: 62 reviews collected since 2019 across six different platforms, holding a 4.8 average on Google (51 ratings) and 4.7 on Angi (12 ratings), plus an A+ rating as a BBB Accredited Business. Two reviews from this spring keep the same pattern going — one describes a same-day response and a clear pricing explanation before hiring, the other a sump pump installed cleanly and professionally after a wet 2025 spring. Across the fuller history, the praise leans on the same few things: Stavros diagnosing the actual cause of a leak or crack rather than upselling, and Athena handling scheduling and follow-up communication promptly. That consistency is real, but it isn't unbroken. Somewhere in that same history sits a sharply negative outlier — a customer describing a large foundation job that went badly, with incomplete work and communication that fell apart mid-project. It's the one loud exception to an otherwise steady record, and it's worth asking about directly: how they handle backfilling and void-filling on a bigger lift, and what recourse looks like if a job doesn't go as planned. One more thing worth confirming before calling: directory listings don't fully agree on where the business is based. The official site, BBB, and Angi all list 51 Harvey Rd in Londonderry, while an older business-directory listing has it at 24 Hemlock St in the same town — likely a stale address rather than a different company, but worth a quick check. For anyone in Southern New Hampshire dealing with basement water, a settling foundation, or a sump pump that needs replacing, Arta has a deep enough track record to be a reasonable first call — just get the scope of a larger structural job in writing, and confirm the current address and any license details directly before signing.