Water Doctor
Verified Pro
4.6
Water Treatment & Softeners in Markham, ON
Compare 25 water treatment & softeners contractors near you in Markham and surrounding area with an average rating of 4.4/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 22, 2026
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Aqua Solutions
Neotec Water Treatment
5.026+ years onlineWaterMart
5.023 years onlineEcoWater Systems Markham-Stouffville, Waterelated Products Inc.
4.9Water Depot
4.827½+ years onlineWaterHub
4.8Yorktech Supply Ltd
4.715½+ years onlineCanadian Water Warehouse Ltd.
4.322+ years onlineEcoWater Systems
3.925½+ years onlineEnvirogard Products Ltd
3.9Nothing But Water Products Inc
3.93D Watertech
3.7Elma Water Technologies Inc.
3.524+ years onlineAqua Technologies Inc. 雅佳淨水
3.4~13 years onlineWater Treatment & Softeners in Nearby ON Cities
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Water Treatment & Softeners in Markham, ON
Markham water-treatment contractors in this directory serve homes on York Region water (treated, hard at 8-12 grains) and surrounding rural well-water properties. A whole-home twin-tank water softener 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. Mandarin and Cantonese bilingual installers are common.
York Region treats Lake Simcoe and other source water. Most installers run free in-home tests. Lead service-line testing is recommended for pre-1990 homes.
Frequently Asked Questions
- How hard is Markham tap water?
- Hard — typically 8-12 grains per gallon (140-200 ppm).
- Are bilingual installers available?
- Yes — Mandarin and Cantonese bilingual capability is common in Markham.
- 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 Markham 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.