Custom Plumbing
This score reflects 74 verified reviews, WSIB coverage confirmed.
How is this calculated?About Custom Plumbing
Custom Plumbing has served Sarnia since 1991 and is known for responsive, efficient repair work—customers report same-day and half-hour service arrivals—with many returning for years. The business operates weekdays from a location with on-site parking, wheelchair-accessible entrance, and accessible parking.
Is this your business?
Verify your profile to confirm your business, earn your Verified badge, and unlock your dashboard and growth tools.
What Customers Say
Top Strengths
Ratings Across Platforms
Aggregated from independent sources. Only ProScore shows all.
No rating yet on Review platform C. Not found on Review platform B.
ProScore aggregates Google, the BBB and other major review platforms. Some sources are not named publicly.
Things to Know
Trusted Level
Scores in ProScore’s Trusted tier — strong, consistent signals across the sources ProScore checks.
Extensive Review History
74 Google reviews on record — a large sample behind the 4.2 average.
WSIB Verified
Workplace Safety and Insurance Board coverage confirmed — you're protected.
BBB Accredited · A+
Better Business Bureau accredited with an A+ rating.
What Reviews Highlight
Reviews mention: reliable, professional, quick service.
Google Review Breakdown
74 totalFeatured Review
Verified review from Google
Excellent Experience. Highly Recommend.<br><br>It was time to update the only bathroom in my 95-year-old home. As a retiree, modifying the bathroom to accommodate additional safety features was key.<br><br>The project included installing a tub, replacing the sewer stack, moving the location of pipes and drains, accommodating the timeline and delays of other trades and relocating the sink and toilet. I contacted Custom Plumbing to review the scope of the renovation and was assured that my requ
Other top rated plumber in Sarnia
Frequently Asked Questions
Is Custom Plumbing licensed?
Does Custom Plumbing have insurance?
What is Custom Plumbing’s rating?
Where is Custom Plumbing located?
What is the ProScore?
The ProScore aggregates ratings from multiple review platforms into a single score from 0 to 100. Unlike platforms that show only their own reviews, the ProScore gives you the complete picture. Scores are capped for providers with limited source verification.
Are you the owner of this business? Dispute this score
Still researching?
Before you hire, read: 5 questions to ask every plumber →
Compare Plumbers in Sarnia
See how Custom Plumbing ranks against other plumbers in Sarnia on ProScore.
ProScore profiles are built from publicly available information and official public registries, and scored using ProScore’s own methodology. We check this data against third-party sources and work to keep it accurate, but records change and errors can occur. A ProScore is informational only — it is not a guarantee, endorsement, or recommendation. Before hiring any contractor, you should independently verify and confirm all relevant credentials, licences, insurance (including WSIB coverage) and references directly with the contractor and the issuing authority. If something here looks wrong, let us know and we’ll correct it promptly.