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24 contractors listed · 12 in Waterloo · 9 open 24/7 · 14 open weekends · 19 rated 4.5+
Data verified October 18, 2026
Listed for homeowners in and around Waterloo, ON, these 24 companies cover plumbing work. Hours, licence claims and free estimate offers come from each company's own website. Ask about provincial workers compensation coverage too, since the work happens inside your home.
Of the 24 contractors we list here, 12 are in Waterloo itself and 12 come from towns including Kitchener (4, 6 km), Guelph (3, 23 km) and Elmira (2, 15 km). 23 of the contractors on this page have a rating, from 3.7 to 5.0 across 2,931 reviews; 12 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (95%), responsiveness (85%) and quality (79%). The topics that come up most in reviews of the contractors on this page are "efficient", "price" and "cleanliness". 9 are open around the clock; 14 are open on Saturdays and 11 on Sundays. 2 show a licence on their websites. Domain records put 11 websites of the contractors on this page at ten or more years old; the oldest dates from 2001. 10 offer emergency call-outs; 6 offer financing or payment plans; 9 give free estimates; 4 are family- or locally-owned and 4 list coupons or special offers. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
2 of the 24 plumbing listings here show a licence on their websites. Confirm it with the provincial body that issued it rather than accepting the website. A company that does not say so may still be licensed, so ask on the phone and note the number before the first visit.
