Groundwater hardness around 240 mg/L, plus iron and sulphur that a softener alone cannot touch. We test, then quote — never the other way round.
Free 10-minute test at your tap. No obligation, no sales pitch.
Hardness is dissolved calcium and magnesium. Past about 120 mg/L it starts quietly costing you — in scale, in soap, and in appliances that die early.
Published municipal averages. Actual hardness shifts by pressure zone and season — an on-site test is the only way to know yours.
Sediment comes out first, then iron and sulphur, then hardness, and ultraviolet disinfection goes last because it only works on water that is already clear. Plumbed in the wrong order a system can look right and fail inside a year — iron in particular fouls softener resin permanently.
Caledon is the part of the GTA where water treatment stops being an upgrade and starts being infrastructure. Peel's village systems — Alton, Caledon East, Cheltenham, Inglewood and Palgrave — draw from groundwater wells rather than Lake Ontario, and everything outside those villages is on a private well the homeowner owns and maintains. That means two things nobody in Mississauga has to think about. First, hardness runs roughly twice what the lake municipalities see, so scale forms fast enough to be visible on fixtures within a couple of years. Second, groundwater here commonly carries iron and sulphur, which is why a softener alone is the wrong answer: iron fouls softener resin permanently, so it has to be removed first or the system you just paid for is compromised. The third thing is transactional. If you are buying or selling a Caledon property on a well, your lender will almost certainly require a water potability certificate before closing, and a failed bacterial test turns into an urgent problem with a firm deadline attached.
A treatment train rather than a single unit: sediment first, then iron and sulphur removal, then softening, then ultraviolet disinfection last. We quote it after a lab sample, never before, because two wells a concession apart can need different media.
L7C, L7E, L7K, L0N
Ion exchange, the whole-home schematic and the well-water treatment order are laid out in detail on the main page — the science is the same everywhere, only the numbers change.
Most homes need one of the first two. If you're on a well, you need the third and it needs a water sample before anyone can quote it honestly.
For municipal supply on lake water. Takes the calcium out before it reaches anything.
Softened water everywhere, plus reverse osmosis at the kitchen tap and the fridge line.
Caledon, King, Uxbridge, Halton Hills, north Durham. Quoted after a lab sample, never before.
Optional service plan at from $14/month — annual filter changes, UV lamp replacement, yearly check. Cancel whenever. It isn't required to keep your warranty.
The national providers rent softeners at $30–$48 a month with no end date. Move the sliders and find the month where renting overtakes simply buying the thing.
Rental range reflects published 2026 GTA rates. Purchase range reflects installed market pricing. Salt and servicing excluded — you pay those either way.
| Outright | Typical rental | |
|---|---|---|
| Who owns the equipment | You do, on day one | They do, permanently |
| Contract length | None | Commonly 5–10 years |
| Cost after year ten | No monthly fee | Still $30–$48 every month |
| Repairs and service | 10-year parts typical. Service calls flat-rate after that. | Included — for as long as you keep paying. |
| Cancelling early | Nothing to cancel | Buyout terms apply |
| When you sell the house | Transfers with the home | Buyer assumes it, or you settle |
| Registration against title | Never | Banned in Ontario since 2024 |
| How you get a price | It's on this page | In-home appointment |
Pick a window. We confirm by text, not from a call centre.
Hardness, iron and pH, measured on site in about ten minutes.
Usually about three hours. Drain, bypass and disposal of the old unit included.
Paid once. Stays with the house when you sell it.
Caledon water measures about 240 mg/L, which is 14.0 grains per gallon — classified very hard. Supply: Peel groundwater wells and private wells. Figures from Region of Peel drinking water quality reporting; private well figures vary by property. Actual hardness varies by pressure zone and season, so an on-site test is the only way to know yours exactly.
Usually yes. Groundwater in the Caledon area commonly carries iron and sulphur, and iron fouls softener resin permanently. Sediment comes out first, then iron and sulphur, then hardness, with ultraviolet disinfection last on water that is already clear. A softener installed on its own will be compromised from the day it goes in.
from $4,850, installed by a licensed plumber. That is a starting figure — well systems vary more than any other job we do, so we quote after a lab sample rather than before. Two wells a concession apart can need different media.
You own it outright from the day it is installed. There is no monthly rental, no contract term, and nothing registered against your home. It transfers with the house when you sell.
Ten minutes at your tap. Hardness, iron and pH measured on the spot, a straight answer, and a price you already saw on this page.
No obligation, no sales pitch, and nobody stays for coffee.
We'll text you within one business day to confirm a window. Nothing is booked until you reply.