Skip to content 
Water Softener & Water Filtration — Mississauga Hard Water Solutions
Mississauga Hard Water — The Problem
The visible effects of hard water: mineral scale on faucet aerators and showerheads that reduces flow, white deposits on glass shower doors and dishware, soap scum on bathroom surfaces, and dull hair and dry skin from inefficient soap lathering. The invisible effects are more costly: scale accumulation inside water heaters reduces efficiency by up to 30 percent and shortens tank life; scale in dishwashers and washing machines accelerates wear on heating elements and valves.
Water Softener Installation
A water softener removes calcium and magnesium from the supply water through an ion exchange process — replacing the hardness minerals with sodium ions as the water passes through the resin tank. The result is soft water at every tap and appliance in the house.
We install Fleck, Clack, and Kinetico water softener systems, sized to the property’s household water demand and the local water hardness level. For Mississauga homes, we typically specify a 30,000 to 48,000 grain capacity unit with a demand-initiated regeneration controller — a design that regenerates the resin only when needed based on actual water usage, rather than on a fixed timer, reducing salt consumption.
Whole-House Water Filtration
A whole-house carbon filter installed downstream of the softener removes chlorine, chloramine, and organic compounds from the water supply. The combination of softener and carbon filter delivers water that feels better, tastes better, and is gentler on skin, hair, and clothing.
For properties concerned about specific contaminants — iron, sulphur smell, or sediment — we install appropriate specialized filter media upstream of the softener to address those conditions before they reach the softener resin (iron and sediment foul resin and reduce softener life if not filtered first).
Reverse Osmosis Drinking Water Systems
A reverse osmosis (RO) system installed under the kitchen sink provides drinking and cooking water that is filtered to near-pharmaceutical purity. RO removes the minerals, chlorine, and any trace contaminants that remain in softened water, producing the cleanest possible drinking water at the kitchen tap.
We install complete under-sink RO systems including the membrane, pre-filter and post-filter cartridges, dedicated RO tap at the sink, and a connection to the refrigerator ice maker and water dispenser if present.
Water Softener Service & Salt Delivery
Water softeners require periodic resin regeneration using salt. Regeneration frequency depends on household water usage and the local water hardness — most Mississauga households with 18 to 20 grain hard water require 40 to 80 kg of salt per month. We provide annual softener service including resin inspection, brine tank cleaning, and control valve testing to maintain optimal performance.
Water Treatment Service Area
We provide water softener and treatment installation across all Mississauga neighbourhoods. Call 416-910-2550 for a free water hardness test and estimate.
Water Softener vs. Water Conditioner — Key Differences
A water softener uses ion exchange to physically remove calcium and magnesium from the water supply, replacing them with sodium ions. The result is genuinely soft water that lathers effectively, prevents scale formation, and is gentle on water-using appliances. A water conditioner — sometimes marketed as a salt-free water softener — changes the physical form of calcium and magnesium so they are less likely to adhere to surfaces, but does not actually remove them from the water.
For Mississauga’s extremely hard water at 18 to 20 grains per gallon, a true ion exchange softener delivers meaningfully better results than a salt-free conditioner. The conditioner may reduce visible scale on faucets and shower doors, but does not prevent scale accumulation inside water heater tanks, dishwasher heating elements, and washing machine components. For appliance protection — the most economically significant benefit of water treatment — an ion exchange softener is the appropriate choice for Mississauga homes.
The sodium content added to water by a water softener is relevant for people on sodium-restricted diets. At 18 grains per gallon, a properly configured system adds approximately 12 mg of sodium per glass of water — less than a quarter teaspoon of table salt. Many households with softeners maintain a separate unsoftened tap at the kitchen for drinking water. We install the unsoftened bypass tap as a standard option on every softener installation at no additional charge.
Potassium chloride is an alternative to sodium chloride as a regenerant for water softeners. It eliminates sodium from the softened water entirely and provides a potassium benefit to landscape watering from the system discharge. Potassium chloride costs approximately 25 to 30 percent more than sodium chloride but is the preferred choice for households with sodium-restricted diets or heart conditions.
Iron & Sulphur Water Treatment
Well water and some Mississauga municipal water sources contain elevated iron or hydrogen sulphide (sulphur). Iron above 0.3 mg/L produces orange or rust-coloured staining on fixtures, laundry, and appliances. Hydrogen sulphide creates a rotten egg odour that, while not a health hazard at typical residential levels, makes water unpleasant to use and can corrode plumbing components over time.
Iron removal requires treatment upstream of the water softener. Iron that reaches the softener resin contaminates the resin medium, reducing its ion exchange capacity and shortening the softener’s effective life. We install iron removal filter units — typically using a manganese greensand or birm filter media with backwashing — before the softener in systems where iron exceeds the treatment threshold.
Hydrogen sulphide treatment uses an aeration or oxidation filter to remove the sulphur compound from the water before it reaches the softener and distribution system. For mild sulphur odour, a carbon filter may provide adequate treatment. For stronger odour, we install an air injection oxidation system that eliminates the sulphur without requiring chemicals.
Water quality testing at a certified Ontario laboratory provides the baseline data for selecting the correct treatment sequence. We recommend testing for hardness, pH, iron. Our plumbing inspection includes a water hardness test alongside the system review., and total dissolved solids before specifying any treatment system. We can arrange certified laboratory testing. Our water line and water treatment consultation includes a complimentary hardness test.
Same-Day Service — Mississauga's Most Responsive Plumbing Team
Same-day plumbing service in Mississauga is available when you call before 10 a.m. on weekdays. We confirm a two-hour arrival window during your call and send a text notification when the plumber is 30 minutes away. If any scheduling change affects your window, our dispatcher calls you proactively — we do not leave clients waiting without information.
Our service vehicles are stocked with the 50 most commonly needed repair parts and materials. For the majority of Mississauga residential plumbing calls, this means the repair is completed on the first visit without a parts run to the supplier. On the rare occasion where a specialized part is required, we have established same-day supplier relationships and can typically complete the repair the same day in most cases.
Evening and weekend appointments are available for non-emergency work by advance booking. We schedule these appointments at the same flat-rate pricing as weekday service — no premium for Saturday or early evening availability. For clients who cannot take time off work for a plumbing appointment, we provide the weekday scheduling flexibility that makes routine service accessible without using vacation time.
Our service area covers every Mississauga postal code, from L4T in Malton to L5J in Clarkson, and from L5A in Cooksville to L5B in the Square One district. We do not charge additional fees for properties at the outer boundaries of our service area — Mississauga is our home territory and all points within it receive the same response standard.
Why Mississauga Homeowners Choose Delex Plumbing
Delex Plumbing has built its reputation across Mississauga through 10 years of consistent service — same-day response, flat-rate pricing with no surprise charges, and licensed master plumbers on every job. Our 384 verified five-star Google reviews reflect the cumulative experience of homeowners from Port Credit to Meadowvale who called us once for a routine repair and have called back for every plumbing need since.
The three things our clients most consistently cite in their reviews: we arrived when we said we would, the invoice matched the quote, and the plumber left the work area clean. These are not exceptional standards — they are baseline professional standards that should characterize every service business. We treat them as the floor rather than the ceiling of what our service delivers.
Our flat-rate pricing policy means the quote we provide before touching anything is the amount on your invoice when we leave. No overtime charges for after-hours calls. No travel fees for distances within our service area. No material markups disclosed after the job is done. Transparent pricing is how we have maintained a 5.0-star rating across 384 reviews — clients who receive exactly what they were quoted do not leave one-star reviews.
Licensed & Insured — Water Treatment by Certified Professionals
Every plumber on the Delex team holds a valid Certificate of Qualification from the Ontario College of Trades. This licence is not a formality — it is the legal prerequisite for performing plumbing work in Ontario, and it represents a minimum of 9,000 hours of apprenticeship training plus a journeyman examination that tests both technical knowledge and code compliance.
Full liability insurance protects your property if any accidental damage occurs during our work. Bonded coverage protects you from any dishonesty by our employees while on your property. WSIB coverage protects you from any liability if a worker is injured on your property. These are not optional additions to our service — they are standard protections that every legitimate plumbing company carries and that unlicensed operators routinely lack.
We pull permits for all work that requires them. Ontario Building Code requires permits for new plumbing installations, changes to drain and vent systems, and water heater replacements. A job done without a required permit leaves you without a legally completed installation — a disclosure obligation in real estate transactions and a potential coverage issue in insurance claims. Our permit fees are included in the project quote rather than added as a surprise at the end.
Frequently Asked Questions About Emergency Plumbing
Q: Is Mississauga's water hard?
A: Yes. Peel Region’s water supply averages 18 to 20 grains per gallon of total hardness — classified as “very hard.” This is among the highest in Ontario and is a primary reason for short water heater life, scale buildup on fixtures, and reduced appliance efficiency in Mississauga homes.
Q: How much does water softener installation cost in Mississauga?
A: Water softener installation including the unit, bypass valve, brine tank, and all plumbing connections typically costs $1,800 to $3,200 depending on unit size and features. Call 416-910-2550 for a free estimate and water hardness test.
Q: Does a water softener affect water pressure?
A: A properly sized and installed water softener has no measurable effect on household water pressure. The flow rate through the supply pipes and softener resin bed is calculated to match the property’s peak demand. We specify units based on household size and demand to ensure adequate flow.
Get Your Free Estimate Today!
Or Give Us A Call: 416-910-2550
Licensed & Insured
Trusted Local Plumbers 
Fast Response
Usually Within 1 Hour 
Satisfaction Guaranteed
100% Quality Work Free Estimates — Call 416-910-2550
Every water treatment job starts with a free estimate including a water hardness test. Call 416-910-2550, contact us online, or request service.
