Cottage Water Supply
Verified Pro
23½+ years online5.0
Water Treatment & Softeners in Toronto, ON
Compare 25 water treatment & softeners contractors near you in Toronto and surrounding area with an average rating of 4.8/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 22, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
Other Businesses in This Area
Alka Water
5.0Quinn Water Systems
5.0Shark Water Softener
5.0Sorso Wellness Water
5.0~5 years onlineSuperior Water Purification
5.0The Clean Water Company
5.0WaterMart
5.023 years onlineEcoWater Systems Markham-Stouffville, Waterelated Products Inc.
4.9Envirofilters
4.926½+ years onlineSilverstream Water
4.96½+ years onlineFresh Flow Water Store
4.8WaterHub
4.8Aquareal Water Systems Inc.
4.7~24 years onlineBest Water Canada
4.611 years onlineLifetime Water Systems
4.6~25 years onlinePure Life H2O
4.6Water Doctor
4.6Water Treatment & Softeners in Nearby ON Cities
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Water Treatment & Softeners in Toronto, ON
Toronto water-treatment contractors in this directory serve homes on Toronto Water (treated Lake Ontario water, hard at 8-12 grains) and surrounding rural well-water properties. A whole-home twin-tank water softener for Toronto city water runs $1,800-$3,400 CAD installed. Well-water systems with iron filtration, softener, and RO at the kitchen typically land $4,500-$9,500.
Toronto Water treats Lake Ontario supply. Lead service-line replacement is ongoing in some older neighbourhoods — homes with lead lines benefit from NSF-53 lead-rated point-of-use filters. Most installers run free in-home tests.
Frequently Asked Questions
- How hard is Toronto tap water?
- Hard — typically 8-12 grains per gallon (140-200 ppm). A 32,000-48,000 grain softener handles a typical 4-person home.
- What about lead in older Toronto homes?
- Pre-1955 homes may have lead service lines. Toronto Water offers free testing — submit a sample to confirm.
- Is RO worth it?
- For taste improvement and chloramine removal, yes — under-sink RO at $400-$900 CAD installed.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Toronto and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.