Professional under-sink water filtration
Supply and install RO, done properly.
A compact, high-performance drinking-water system fitted under your kitchen sink by a local under-sink water filter specialist. Clear scope. Careful workmanship. Fixed $550 CAD, all-in hardware and labour.
$550 CAD all-in · System + installation
1-year workmanship warranty · First-year filters included · Limited weekly slots

Visual representation only. Final installation layout depends on cabinet dimensions and existing plumbing.
Turnkey drinking water filter installation in Waterloo Region should be straightforward. Yet many homeowners end up comparing equipment specifications, searching for compatible fittings, drilling a faucet hole and wondering whether a slow drip is forming behind the cabinet. Blink H2O removes that uncertainty. We supply and install the RO as one complete local service: a ready-to-use under-sink system, all-in hardware and labour, from a single point of accountability.
What happens before installation
We start with fit. You send basic contact details and your postal code. We confirm your community, ask about the sink and cabinet, and may request a clear photo of the plumbing below. This helps us identify unusual drain configurations, limited cabinet space, granite or quartz drilling requirements, or an existing soap-dispenser opening that could be used for the dedicated faucet.
You receive a clear scope before the appointment. The standard price is $550 CAD all-in. It includes the system, standard installation materials, professional labour, commissioning, one year of workmanship warranty and the first year’s replacement filters. If a non-standard condition could change the work, we discuss it before booking rather than surprising you in the kitchen.
Equipment specifications, in plain terms
- Format: compact tankless multi-stage point-of-use system, mounted inside the sink cabinet.
- Standard stages: sediment protection, activated carbon, the reverse osmosis membrane and a taste-polishing post-filter.
- Alkaline filter option: an alkaline pH post-filter can be added as a remineralization stage after the post-filter, giving a mineral-restoring RO build with a small amount of calcium and magnesium returned to the water and a slightly higher pH. Quoted as an add-on rather than included in the standard package.
- Outlet: one slim dedicated filtered-water faucet at the sink or counter, with the main tap left unchanged.
- Monitoring: filter-life indicators, a TDS display for operating reference and a programmed flush cycle.
- Services: cold-water feed connection, drain connection, commissioning, pressure and leak testing.
Final reduction performance always follows the data sheet for the certified model installed in your home rather than a generic claim. If you want the alkaline stage, say so when you book so the cartridge is on the van and the cabinet layout accounts for it. The pricing page covers the add-ons in more detail.
What happens on installation day
We arrive within the confirmed window and inspect the final installation area with you. The cabinet is protected before tools come out. The cold-water supply is isolated, the feed connection is installed and the drain connection is positioned carefully. The compact system is placed to keep practical storage space wherever possible.
A dedicated filtered-water faucet is mounted at the sink or counter. Where an existing accessory hole is available, it may provide a clean route without adding another opening. Where drilling is required, the sink or counter material is assessed first and the position is agreed with you. The system is then connected, flushed, commissioned and tested under pressure.
Before leaving, we check each connection, confirm the faucet flow, explain the display and maintenance indicators, and show you the filter replacement process. Packaging and installation debris leave with us. Your cabinet is left tidy.
A system focused on drinking and cooking water
An under-sink RO unit treats water at one point of use. That is different from a whole-home softener or carbon system. It does not need to process water used for showers, toilets, laundry or outdoor taps. Instead, it focuses filtration where finer treatment delivers the most day-to-day value: the kitchen drinking-water faucet.
Use the filtered tap for drinking, ice trays, tea, coffee, soups, sauces, pet bowls and countertop appliances. Lower dissolved-mineral content can help reduce the scale introduced into kettles and coffee makers. Because local source-water conditions vary, the final filtered-water reading also varies. We avoid promising a universal number and focus on correct installation, appropriate flushing and a practical maintenance schedule.
Why professional RO installation matters
Water moves through small connections under constant pressure. A fitting that appears secure can still leak slowly. A drain saddle in the wrong location can create noise or poor drainage. A faucet mounted without checking clearances can interfere with a soap dispenser, window ledge or cabinet hardware. Professional installation is not simply about making the system run. It is about choosing a sound layout and reducing preventable problems.
Our clean-install promise means deliberate routing, supported tubing, accessible filters and a final leak check. The one-year workmanship warranty covers the installation work. Manufacturer component coverage depends on the final equipment model and its written warranty.
Who this service is for
This service fits homeowners who want a dedicated, convenient source of filtered water without managing bottled-water deliveries. It also works well for families tired of slow countertop pitchers, coffee drinkers frustrated by rapid kettle scale, and households that prefer a compact point-of-use system instead of a larger whole-home project.
Renters may also be candidates with written landlord approval. We can outline the installation changes so the request is easy to understand. Condo owners should confirm any building rules related to plumbing work and insurance before the appointment.
Areas served
As a local drinking water filter contractor we install across Kitchener, Waterloo, Cambridge, Guelph and nearby Waterloo Region communities. Appointment timing is grouped by area to keep travel efficient and pricing simple.
Common questions
RO installation questions, answered
No vague sales talk. Just the practical details homeowners want before an under-sink installation.
Read all water filter FAQs →Will the system fit under my sink?+
In most kitchens, yes. The compact tankless unit is designed to preserve useful cabinet space. We confirm measurements and plumbing access before installation and explain any unusual fit issue before work begins.
How long does installation take?+
Most standard installations take about two to three hours. We protect the work area, install and test the system, check every connection for leaks, and show you how to use it before leaving.
What if I rent my home?+
Many renters install an under-sink system with written landlord approval. The installation is discreet and can usually be removed later. We can explain the small plumbing and faucet changes so you can ask permission clearly.
Is there an alkaline filter option?+
Yes, as an optional add-on. An alkaline pH post-filter — also called a remineralization stage — sits after the membrane and reintroduces a small amount of calcium and magnesium, which raises pH slightly and gives the water a rounder taste. This mineral-restoring RO setup is not part of the standard $550 package. Ask for it when you book and we quote the cartridge and the extra stage before the appointment.
Do you supply and fit the system, or just sell it?+
We supply and fit it. Blink H2O is a turnkey drinking water filter installation service, so the $550 CAD is all-in hardware and labour: the system, the dedicated faucet, standard materials, professional installation, commissioning, leak testing, first-year replacement filters and a one-year workmanship warranty. You do not need to source parts or book a separate plumber.
How much does it cost to maintain?+
Routine filter replacements are the main ongoing cost. Your first-year replacement filters are included with the $550 installation. After that, typical annual filter costs depend on water use and source-water quality; we provide the exact replacement schedule for your system.
Water without the weekly hassle
A clean install. A clear price. Better water.
One compact system. One professional installation. One clear all-in price.
Limited weekly appointments
Get Installed This Week
Join the installation waitlist. We confirm fit, timing and the fixed $550 CAD all-in price before booking.