Verified record
RKContracting is identified by Houzz as a local general contractor in Nashua, New Hampshire, offering remodeling and maintenance work that includes basement waterproofing and waterproofing. The profile says the business is licensed and fully insured and shows 15 projects. Houzz shows one 5-star review, dated February 9, 2019. That homeowner described the contractor as reliable, friendly, responsive to questions, and attentive to craftsmanship; the written record is positive but old and limited to one review. Before booking, confirm current availability, the exact waterproofing scope, recent comparable projects, licensing and insurance details, warranty terms, and a written estimate.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from RKContracting. Use it to sanity-check bids, then get the real number in writing.
Not sure which you need? Start with an inspection — many reputable companies assess free, and independent assessments run up to $500.
The wall run getting the drain — a full 30×40 ft basement is about 140 ft.
Estimated range
$7,600 – $15,000
Typical waterproofing project around $11,300
I was extremely well pleased with RK Contracting. He answered all my questions, was reliable, and friendly.
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1 change recorded — last scanned Sep 14, 2026.
Basement waterproofing5.0
Retaining walls5.0
Bulkhead replacement4.8
Brick and 1850s fieldstone foundations repointed4.8
Structural carpentry4.8
Owner-led communication4.8