Water Treatment Across the GTA
Water Doctor serves 19+ cities across the Greater Toronto Area from our Markham showroom. Visit us or get professional water treatment installation at your home.
Water Doctor - Denison
Our location offering a full range of water treatment solutions with demonstration models of all our purification systems.
Address
601 Denison St, Markham, ON L3R 1B8
Hours
Monday - Friday: 10:00 AM - 17:00 PM
We Serve the Greater Toronto Area
Water Doctor provides water softeners, reverse osmosis systems, and whole-home filtration throughout the GTA. Each city has unique water hardness levels — click your city to see water quality data, recommended products, and local service areas.
From Markham and Toronto to Mississauga, Vaughan, Brampton, Richmond Hill, Oakville, Burlington, Newmarket, Aurora, Milton, Georgetown, Stouffville, King City, Caledon, and Durham Region (Ajax, Pickering, Whitby, Oshawa). Check water hardness in your area →
Markham
Water Hardness: 7.3 gpg
6+ Service Areas
Toronto
Water Hardness: 7 gpg
6+ Service Areas
Mississauga
Water Hardness: 7 - 7.6 gpg
6+ Service Areas
Brampton
Water Hardness: 7 - 7.6 gpg
6+ Service Areas
Vaughan
Water Hardness: 7.4 gpg
6+ Service Areas
Richmond Hill
Water Hardness: 7.3 gpg
6+ Service Areas
Oakville
Water Hardness: 7.7 gpg
6+ Service Areas
Ajax
Water Hardness: 7.3 gpg
5+ Service Areas
Pickering
Water Hardness: 7.3 gpg
6+ Service Areas
Whitby
Water Hardness: 7.3 gpg
6+ Service Areas
Oshawa
Water Hardness: 7 gpg
6+ Service Areas
Burlington
Water Hardness: 8.6 gpg
6+ Service Areas
Newmarket
Water Hardness: 7.3 gpg
6+ Service Areas
Aurora
Water Hardness: 7.3 gpg
6+ Service Areas
Milton
Water Hardness: 7.5 gpg
6+ Service Areas
Georgetown
Water Hardness: 7.5 gpg
6+ Service Areas
Stouffville
Water Hardness: 7.3 gpg
6+ Service Areas
King City
Water Hardness: 7.3 gpg
6+ Service Areas
Caledon
Water Hardness: 7.5 gpg
6+ Service Areas
Explore Water Treatment Solutions
Find the right system for your GTA home or business.
Questions about our services?
Contact us to learn more about our water treatment solutions and schedule a consultation.