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Plumber Professional

Koert Plumbing Ltd. logoKoert Plumbing Ltd.

Waterloo, ON
Compare with similar plumber providers in Waterloo →
Emergency ServiceWSIBBBB AccreditedResponds to Reviews
2 Credentials Verified
ProScore
4.8★ Google|2/4 Sources

This score reflects 128 verified reviews, across 2 platforms, licensed and verified.

How is this calculated?
Data verified: Jun 2026

About Koert Plumbing Ltd.

AI-generated summary from verified data sources

Based in Waterloo, Koert Plumbing Ltd. is a professional plumbing company serving the local area. They hold an impressive 4.8★ Google rating from 127 reviews. Their credentials include being WSIB registered.

G
Google
4.8★ (128)
B
BBB
Excellent
Rated on 2 independent platforms
WSIB coverage confirmed

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What Customers Say

AI analysis of 5+ verified Google reviews

Top Strengths

Exceptional professionalism and responsiveness - team described as 'incredibly responsive' even on long weekends, with clear communication and follow-up updates
Fast, efficient work quality - multiple reviewers noted jobs completed 'in a jiffy,' faster than anticipated, with high-standard finishing work
Clean, organized workmanship - consistently praised for leaving no mess behind, keeping workspace 'clean and tidy' throughout jobs from simple repairs to major renovations
fast/efficient serviceprofessional teamresponsive/responsive even on holidaystransparent communication/explanationshigh quality workmanship

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

2 of 4 verified
G
Google
4.8/5
B
Review Site B
Not found
B
BBB
Excellent
C
Review Site C
Not found
The ProScore Trust Score aggregates ratings from all verified sources, weighted by review volume, recency, and platform credibility.

Things to Know

Trusted Contractor

Meets ProScore verification standards for quality and reliability.

Highly Rated

Consistently rated 4.8 stars across 128+ Google reviews.

WSIB Verified

Workplace Safety and Insurance Board coverage confirmed — you're protected.

Google Review Breakdown

128 total
5
121
4
1
3
0
2
0
1
5

Featured Review

Verified review from Google

“

We reached out to Koert Plumbing after experiencing issues with the plumbing system at our house.  The team was incredibly responsive, particularly on one occasion that was on a long weekend.  The crew is great and knowledgeable, and very transparent.  They took the time to explain the issue at hand and options around how to best remedy the matter.  The team managed themselves and the work in a very professional manner, and most notably, followed up with updates on progress of the work they perf

G
George Traianou
Google Review

Other top rated plumber in Waterloo

Whiteway Plumbing
76
Waterloo
4.8(379)
TRH Plumbing & Heating Inc
75
Waterloo
4.9(151)
Pure Life Plumbing & Drains Inc
72
Waterloo
5(237)
Transparent Backflow Services
72
Waterloo
5(37)

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiringPlumber FAQs in WaterlooView all guides →

Frequently Asked Questions

Is Koert Plumbing Ltd. licensed?
Licensing status has not been verified for Koert Plumbing Ltd.. Contact them directly to confirm current credentials before hiring.
Does Koert Plumbing Ltd. have insurance?
Yes, Koert Plumbing Ltd. has verified WSIB (Workplace Safety and Insurance Board) coverage, which protects homeowners from liability if a worker is injured on the job.
What is Koert Plumbing Ltd.’s rating?
Koert Plumbing Ltd. has a ProScore Trust Score of 77/100 (Trusted), calculated from 2 verified data sources including 128 Google reviews.
Where is Koert Plumbing Ltd. located?
Koert Plumbing Ltd. is a plumber serving Waterloo, Ontario. View their full profile on ProScore for verified reviews and credentials.

Business Details

66 Rankin St #12, Waterloo, ON N2V 1V9
Plumber
View on Google Maps

Hours

Friday8a.m.-4:30p.m.
Monday8a.m.-4:30p.m.
SaturdayClosed
SundayClosed
Thursday8a.m.-4:30p.m.
Tuesday8a.m.-4:30p.m.
Wednesday8a.m.-4:30p.m.

Services Offered

Drain cleaningPipe repairWater heater installationFixture installationEmergency plumbingLeak detection

Services & Info

Emergency ServiceOnsite servicesOnline estimates

Crowd

LGBTQ+ friendlyTransgender safe space

Other

LGBTQ+ friendly

Amenities

Gender-neutral washroom

Offerings

Repair services

Service options

Language assistance

Credentials

Insurance
Not Confirmed
WSIB Coverage
✓ Confirmed

ProScore displays credential information as reported by contractors and third-party sources. Homeowners are encouraged to independently verify all credentials, licenses, and insurance prior to engaging any contractor.

Data Transparency

SourcesGoogle, BBB, and Ontario regulatory records
Last updatedJune 2026

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Checked by ProScore

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.

≥80
Elite
≥65
Trusted
≥50
Good
≥30
Basic
<30
Caution

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