How long has the company been in business?

The business's website claims over 30 years of operation.

Which areas does the company serve?

Its website lists Cortland, Warren, and Youngstown in Ohio, Hermitage and New Castle in Pennsylvania, and wider northeastern Ohio and northwestern Pennsylvania.

Guardian Basement Waterproofing PLus Inc

Name: Guardian Basement Waterproofing PLus Inc
Rating: 4.7

Updated 2026-10-08 · 4,308 reviewed · 29 listed · Scored from 15 Google reviews · How we rank ›

4.7(15) 71 composite score See reviews on Google ✓ Google-verified

Exterior Waterproofing & DrainageCrawl Space WaterproofingBasement WaterproofingFoundation Crack Repair

Google-verified15 Google reviewsOver 30 years

Guardian Basement Waterproofing PLus Inc

Services: Exterior Waterproofing & Drainage, Crawl Space Waterproofing, Basement Waterproofing
Reviews: 15
Best for: people wanting a long-running local contractor for basement waterproofing

Business data from Google Business Profile, checked 2026-10-08. Facts from the business's own website were fetched 2026-10-08.

What reviewers think

Most reviewers describe a professional, easy-to-work-with team that keeps them informed. Several have hired the company repeatedly over many years. One older one-star review says a warranty claim was not honored and the crew gave conflicting explanations.

Praised for

courteous, professional crew
keeps customers informed during projects
quick response and easy to work with
stands by its work

Watch-outs

a 1-star review from four years ago says warranty claims were not honored

professional-crewclear-communicationresponsivefair-pricingwet-basementsquality-workmanship

Best for: people wanting a long-running local contractor for basement waterproofing

Think twice if: Ask about the warranty terms in writing up front, since one older review says a claim was refused.

Strengths

Reviewers describe a courteous, professional crew
Owner-led contact that reviewers say keeps them informed
Repeat customers mention long working relationships

What reviews say by service

Basement Waterproofing: Reviewers say the basement work stayed dry for years and was fairly priced.
Foundation Crack Repair: One reviewer says footers were repaired during a basement job.

How it compares

Rated 4.7 against a 4.72 average across the 17 exterior waterproofing & drainage businesses listed here.
Has more Google reviews than 57% of the businesses in this directory.

How did this business earn its score?

Our Rubric

Star rating 75

Review volume 52

Review recency 82

Review sentiment 73

Profile completeness 75

Verification 30

Rating breakdown

Questions people ask

How long has the company been in business?: The business's website claims over 30 years of operation.
Which areas does the company serve?: Its website lists Cortland, Warren, and Youngstown in Ohio, Hermitage and New Castle in Pennsylvania, and wider northeastern Ohio and northwestern Pennsylvania.

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Reviewers in recent weeks describe a team that explains problems in plain terms and comes out quickly, often the same day. Many say the technicians are professional, tidy, and easy to work with, and several say they would call again or recommend them to others. Recent reviews also cover sump pump replacements, a sewage ejector pump swap with restoration help, and a main water line replacement by excavation. One longer job drew a note that updates on utility marking slipped, though the reviewer said the work itself was finished well. Sewer, drain, and water heater work appear in the company's own service list.

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