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Browse the Top 15 Water Treatment Companies Serving Ontario, ON

See what 15 water treatment providers serving Ontario, ON, including Mallorytown, Aurora and Barrie, offer for planned installations and system servicing. Read customer feedback, explore business profiles and contact companies that match your water treatment requirements.
Aurora (1)
Barrie (1)
Chatham (1)
Cochrane (1)
Dorchester (1)
Ingersoll (1)
Kitchener (1)
Mallorytown (2)
Midland (1)
North York (1)
Oakville (1)
Oshawa (1)
Saint Catharines (1)
Welland (1)
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Aqua Service Niagara
Not rated yet
We offer first-class installations with service-friendly configurations.
Trusted water treatment solutions in Niagara. Aqua Service Niagara offers reverse osmosis systems, water softeners, and commercial purification equipment with first-class installations and after-sales support.
Reverse Osmosis Systems Water Softeners Whole Home Filtration
(905) 646-6823 Call Profile
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Aquareal Water Systems
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We offer Kinetico systems with the longest warranty programs in the industry
Toronto's trusted Kinetico dealer offering water softeners, reverse osmosis systems, and whole-home filtration solutions. Free water analysis and professional installation services available.
Water Softeners Reverse Osmosis Systems Whole Home Filtration
(416) 221-1107 Call Profile
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Aquarian Chemicals
40 Years
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We have over 60 years of combined experience in industrial water treatment.
Aquarian Chemicals offers high-quality water treatment products and services for industrial applications in Oakville, Ontario. Specializing in boiler systems, cooling towers, and wastewater solutions since 1986.
Water Treatment Solutions Corrosion Monitoring Equipment Inspections
(905) 825-3711 Call Profile
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Ontario Soft Water
Emergency
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Certified technicians with 8-35 years industry experience
Trusted water treatment specialists serving Kitchener, Waterloo, and Guelph. Offering CSA-approved softeners, reverse osmosis systems, and tankless water heaters with free installation.
Water Softeners Reverse Osmosis Systems Chlorine Removal
(519) 579-0500 Call Profile
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A V Water Systems
50+ Years
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We have over 50 years of experience in water treatment solutions since 1972.
Discover reliable water treatment services in Niagara Region with A V Water Systems. Offering free water testing, softeners, reverse osmosis systems, and UV sterilizers for cleaner, safer water in homes and businesses.
Water Softeners Reverse Osmosis Systems Ultraviolet Sterilizers
(905) 892-5390 Call Profile
B&R Water Treatment
36 Years
Emergency
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B&R Water Treatment
36 Years
Emergency
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We offer 35 years of generational expertise in water treatment solutions.
B&R Water Treatment provides expert water softeners, filtration, and reverse osmosis systems in Northeastern Ontario. With 35 years of experience and Kinetico-certified equipment, we ensure clean, safe water for homes and businesses.
Water Softeners Water Filtration Reverse Osmosis
(705) 272-6305 Call Profile
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ONE STOP WATER
24 Years
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Over 20 years of combined experience in water treatment
Trusted provider of water treatment systems since 2002. Offering softeners, filtration, reverse osmosis, and UV disinfection. Free water testing and financing available.
Water Softeners Filtration Systems Reverse Osmosis
(519) 303-0054 Call Profile
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Ovivo
Emergency
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We offer over 150 years of expertise in water treatment solutions.
Ovivo provides advanced water treatment solutions, equipment, and services for industrial, municipal, and electronics markets worldwide, focusing on sustainability and innovation.
Water Treatment Solutions Digital Plant Monitoring Chemical Products
(705) 726-6655 Call Profile
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AJ's Water Treatment
27 Years
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We have over 25 years of experience in water treatment systems.
AJ's Water Treatment offers customized water filtration, softening, and purification solutions in St. Augustine, FL. Serving homes and businesses since 1999 with free in-home testing.
Drinking Water Systems Water Softening Specialty Filters
(613) 342-7276 Call Profile
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Neotec Water Treatment
33 Years
Not rated yet
We have over 30 years of specialized experience in water treatment systems
Trusted Canadian water treatment provider since 1993. Offering customized filtration systems, reverse osmosis installations, and maintenance services for residential and commercial properties nationwide.
Reverse Osmosis Systems UV Sterilizers Water Softeners
(905) 841-9507 Call Profile