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The 10 Best Foundation Repair Companies in Boston (2026)
Keeping Boston’s older building stock dry and level is a year-round concern — homeowners and landlords across the city call on foundation and masonry pros whenever cracks, settling, or basement water show up. This list ranks the ten best foundation repair companies in Boston based on Google review data, using a Bayesian-style score that weights average ratings by number of reviews to favor consistently well-reviewed providers. The results were updated for 2026 and reflect public Google ratings and review counts; we did not visit locations or tally work history. Use this as a starting point to compare local contractors and follow the FAQ below for practical hiring tips.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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StoneBase Masonry – Basement & Foundation Repair Specialist
StoneBase Masonry – Basement & Foundation Repair Specialist lands the top spot by pairing a flawless 5.0 Google rating with the highest review count on our list — 117 public reviews. That combination gives more confidence that the top score reflects a sustained pattern across many customers rather than a tiny sample. The Google category lists the company as a masonry contractor and its listed address places it in Auburndale.
The full ranking
Larson’s Foundation Waterproofing LLC
Larson’s Foundation Waterproofing LLC has a perfect 5.0 rating based on 92 Google reviews and appears under the ‘Waterproofing service’ category.
92 reviews
Attack A Crack
Attack A Crack is listed as a concrete contractor with a 5.0 average across 86 Google reviews and shows a Quincy address on its Google listing.
86 reviews
Fenway Masonry & Waterproofing, Chimney Repair, Basement Repair Boston
Fenway Masonry & Waterproofing, Chimney Repair, Basement Repair Boston carries a 5.0 score from 74 Google reviewers and is categorized as a masonry contractor with a Boylston Street address in Boston.
74 reviews
Harborline Foundation & Brickwork
Harborline Foundation & Brickwork posts a 5.0 Google rating drawn from 69 reviews and is listed as a masonry contractor.
69 reviews
Beantown Strong Construction
With 53 Google reviews and a 5.0 average, Beantown Strong Construction is listed under ‘Foundation’ and shows an address in Cambridge.
53 reviews
LaPorte Masonry & Waterproofing Inc.
LaPorte Masonry & Waterproofing Inc. appears as a masonry contractor with a 5.0 rating from 36 Google reviewers and an East Boston location on Sumner Street.
36 reviews
Bruno Guerriero Construction Inc.
Bruno Guerriero Construction Inc. is categorized as a ‘Foundation’ company, holding a 5.0 rating across 31 Google reviews with a Boston mailing address.
31 reviews
ShoreView Masonry – Basement & Foundation Repair Specialist
ShoreView Masonry – Basement & Foundation Repair Specialist lists a 5.0 average from 29 Google reviews, is classified as a masonry contractor, and shows a Boylston Street address in Boston.
29 reviews
Knights Masonry & Foundation Waterproofing
Knights Masonry & Foundation Waterproofing holds a 5.0 rating based on 28 Google reviews and is listed as a masonry contractor with a Boston address on School Street.
28 reviews
Frequently asked questions
How should I choose a foundation repair contractor in Boston?
Look for licensed and insured contractors, compare multiple written estimates, and check recent customer reviews and photos of completed work. Ask about specific methods they use, any required permits for your neighborhood, and whether they provide a written warranty for their work.
What should I check before hiring a foundation repair company?
Verify proof of insurance and any required local licenses, request an itemized written estimate, and ask for references or photos of similar projects. Also confirm the project timeline, who will handle permits, and what guarantees are offered for the repairs.
How much does foundation repair typically cost?
Costs vary widely depending on the problem’s severity, the repair method needed (for example, underpinning, piering, or waterproofing), and house size and soil conditions. Get multiple detailed quotes and prefer itemized bids so you can compare labor, materials, permits, and warranty terms.
How was this ranking determined?
This list is based on public Google ratings and review counts updated for 2026, using a Bayesian-style score that weights average ratings by the number of reviews. We did not perform on-site inspections or independently verify work quality; use the ranking as a starting point for further research and quotes.