Reverse Osmosis Water Filtration in Calgary
Calgary's tap water meets safety standards but it's still hard, chlorinated, and high in total dissolved solids — fine for showering, less ideal for drinking, coffee, and cooking. A reverse osmosis system at the kitchen tap removes 95-99% of dissolved minerals, chlorine, sediment, lead, and fluoride for the cleanest water in the home.
We install under-sink RO systems (the most common Calgary setup) and whole-home configurations where it makes sense. Pre-filter for sediment, carbon block for chlorine/chloramine and taste, RO membrane for dissolved solids, post-filter to polish — plus optional remineralization for the alkaline-water minerality some homeowners prefer.
Pairs naturally with a water softener — softener protects the RO membrane from scale (doubles membrane life) and the RO drops the sodium the softener adds back to drinking water. Combined install is the most common request from homeowners in newer lake communities like Mahogany and Auburn Bay, and from older builds in Mount Royal and Marda Loop where lead-soldered supply joints make point-of-use filtration a real upgrade.
Free in-home assessment — we look at your existing under-sink space, water pressure, and what you're trying to fix (taste, scale on coffee equipment, lead concerns, peace of mind). Call 587-834-3668.
Tired of bottled water or a kettle full of scale? Call 587-834-3668 for a free in-home RO assessment.
Call 587-834-3668“Great experience working with Jason and Shaun on the installation of my water softener and RO system. Professional, knowledgeable, and took the time to explain the setup and answer all my questions. The installation was completed neatly and efficiently, and the quality of workmanship was excellent. Highly recommend Flame Tech for any plumbing or water treatment needs.”
Aditya Prashar
Calgary · 6 days ago
What we install on a Calgary RO call
Standard configurations. Custom builds for higher-demand homes or specific contaminant targets available on request.
4-stage standard under-sink RO
Sediment pre-filter → carbon block (chlorine/odour) → RO membrane → post-carbon polish. ~75 GPD membrane covers most households. Standard chrome faucet at the sink, 3-gallon pressurized storage tank, drain saddle to the sink trap. Quiet, proven, our most common install. Free written quote.
5-stage with remineralization
Adds a calcium/magnesium remineralization cartridge after the RO membrane so the output has the alkaline-water minerality some homeowners prefer (and that's better for kettle boiler scale balance and coffee extraction). Add-on to the standard 4-stage install.
Tankless RO (high-efficiency)
Newer systems with a high-flow membrane and internal pump that produce water on-demand without the pressurized storage tank — frees up under-sink space, much better wastewater ratio (typically 1:1 vs 3:1 on standard), instant water at the tap. Premium tier — quoted on-site.
Whole-home + under-sink combo
Whole-home carbon filtration on the main supply line (removes chlorine and taste at every tap, shower, washing machine) PLUS under-sink RO for the kitchen drinking water. Often paired with a water softener for the complete water-quality stack. Pricing varies by config — free assessment.
Membrane + filter replacement service
Existing RO that's making weird-tasting water, lower flow, or just hit its annual? We service every common brand — APEC, iSpring, Aquasana, Culligan, Kinetico, Reverse Osmosis Revolution, Waterdrop. Quoted on-site based on the system and what's due.
Why Calgary homes benefit from reverse osmosis
Calgary tap water is safe — it meets every Alberta and Health Canada standard. But "safe" and "ideal for drinking, coffee, kettles, and cooking" are different bars.
Total dissolved solids 150-200 ppm
Calgary's water carries calcium, magnesium, sodium, sulfates, and bicarbonates that dissolve out of the surrounding rock. Levels are perfectly safe and within Canadian drinking-water guidelines, but they're noticeable in coffee, tea, kettles (visible scale buildup), and for people who notice mineral taste. RO drops TDS to 5-15 ppm — closer to distilled.
Chlorine + chloramine at the plant
The City of Calgary disinfects with chlorine (and occasionally chloramine during seasonal switchovers). Standard pleated filters don't remove either. The carbon block in an RO system removes both — gives you noticeably cleaner-tasting drinking water and protects sensitive equipment like espresso machines from chlorine wear.
Lead at the tap — older homes
Pre-1990 Calgary builds (Mount Royal, Elbow Park, Inglewood, parts of Bowness and Montgomery) often have lead-soldered copper joints. Calgary supply is lead-free at the plant but can pick up trace lead from the home's own pipes. RO removes lead at the point of use — the simplest mitigation if your home tests positive.
Sediment from main breaks
Calgary's older neighbourhoods occasionally see water main breaks that flush sediment into the supply for a few days. RO captures this at the kitchen tap — your drinking water stays clean even when the cold water comes out cloudy for 24 hours.
Softeners add sodium — RO removes it
A water softener replaces calcium/magnesium with sodium ions. For most uses (dishes, laundry, showers) this is the trade-off you want. For drinking water, an RO downstream of the softener removes the added sodium — net result: no scale anywhere in the home, low-sodium drinking water at the kitchen tap.
Bottled water + delivery costs add up
Many Calgary households spend meaningful money each month on bottled water or delivery service. A one-time RO install pays back within a year or two for most households, then keeps producing — most homeowners switch entirely to tap-quality RO water within a few weeks.
How an RO install actually runs
Typical 2-3 hour install for under-sink systems.
1. Site assessment + water test
We look at under-sink space, existing cold-water shutoff, drain configuration, and faucet hole availability. Test current TDS, hardness, and chlorine so we can confirm the right system + show measurable improvement after install.
2. Faucet install
Drill the dedicated RO faucet hole through the sink or counter (most kitchen sinks have a sprayer hole you can repurpose; some need a new hole drilled in stainless or granite — we do both). Air-gap faucet for code compliance.
3. Cold-water tap + drain saddle
Tap the cold water supply with a needle valve, route to the RO inlet. Install drain saddle on the sink drain line for the RO wastewater.
4. System assembly + filter loading
Mount the system to the cabinet wall, install pre-filter, carbon filter, RO membrane, post-filter in correct order. Connect tank (if standard system) or run the system through its self-prime cycle (tankless).
5. Initial flush + test
Run 1-2 tank fills through the system to flush manufacturing residues from the filters and membrane. Test output TDS, chlorine, and flow rate to confirm performance.
6. Walkthrough + service schedule
Show you which filters need replacing when, how to swap them yourself (or book us), where the shutoff valves are. Mark install date on the system so the next service interval is obvious.
Reverse Osmosis Calgary — FAQs
How much does a reverse osmosis system cost in Calgary?
RO install pricing depends on the system tier (standard 4-stage, 5-stage with remineralization, tankless high-efficiency, or whole-home + under-sink combo). Pairs naturally with a water softener install — combined pricing available. Annual filter and membrane service quoted separately based on the system. Free written quote on-site after assessment.
Do I really need an RO system in Calgary?
"Need" is strong — Calgary water meets every safety standard. But if you currently buy bottled water, notice mineral taste in tap water, have visible scale buildup in your kettle or coffee maker, or live in an older home with lead-soldered pipes, RO solves all of those at once. Many homeowners install it for the coffee improvement alone — RO water makes a measurable difference in espresso extraction and tea clarity.
Should I get a water softener AND reverse osmosis?
If you can swing both, yes — they solve different problems. Softener handles whole-home hard water (no scale in fixtures, water heater, dishwasher; better detergent performance; longer fixture life). RO handles drinking water (cleanest possible water at the kitchen tap). Softener-first is the right order — soft water dramatically extends RO membrane life. See our water softener page for combined pricing.
How much water does an RO system waste?
Standard pressurized-tank RO systems waste 3-4 gallons per gallon produced — that water goes down the drain. Tankless RO systems with internal pumps are much better at 1-1.5 gallons wasted per gallon produced. For households concerned about water use, the tankless option is worth the price premium. Calgary's average household water use makes the waste from standard RO a small fraction of total monthly use — but if it matters to you, ask about tankless.
How often do RO filters and membranes need replacing?
Pre-filter and carbon filters: every 6-12 months depending on water quality and household usage. RO membrane: every 2-3 years for standard installs, 3-5 years if you have a water softener upstream protecting the membrane. Remineralization cartridge (5-stage systems): every 12 months. We offer scheduled service so you don't have to track it — annual visit covers pre + carbon, multi-year visit covers membrane.
Can I install a reverse osmosis system myself?
Technically yes, with a hardware store kit. The catch: most DIY installs skip the air-gap faucet (required by Alberta code), use compression fittings that fail under cold-snap pressure swings, and tap the cold supply with the wrong valve type. We see a lot of DIY installs leaking from the saddle valve or producing low flow because the drain saddle was installed wrong. A professional install includes code-compliant air gap + proper drain saddle + system commissioning.
Does RO water leach minerals from my body?
Common concern — short answer: no. Drinking-water mineral content is a tiny fraction of total dietary mineral intake (you get vastly more calcium/magnesium from food than from any tap water). If you specifically want the alkaline-water minerality some homeowners prefer, the 5-stage remineralization option adds calcium and magnesium back after the RO membrane. Either way, RO water is safe to drink for everyone in your household.
Simple, honest, on your schedule.
Call or request a quote
Tell us what's going on. We listen first and ask the right questions before we schedule anything.
Free written estimate
We assess the job and give you an all-in price in writing. No pressure, no surprise add-ons.
Schedule at your convenience
Pick a day and window that works for your home — we'll confirm dispatch and arrival time.
Clean, code-compliant service
Licensed technicians complete the work to Alberta code, clean up, and walk you through what we did.
Also under Water
Hot Water Tanks Calgary – Professional Installation & Repair
Calgary homeowners rely on FlameTech Plumbing & Heating for dependable hot water tank solutions. We install and service [Bradford White](https://www.bradfordwhite.com/) and John Wood — the two brands we've found hold up best to Calgary's hard water. Has your morning shower turned into an unwelcome cold surprise? Maybe you've spotted water pooling around the base of your current unit or noticed your energy bills creeping higher each month.
Calgary Hot Water Tank Replacement — Same-Day Service
Hot water tanks in Calgary fail at 8-12 years — sooner if you don't have a water softener. When yours goes, FlameTech has stocked trucks rolling for same-day replacement, with the brands that actually survive our hard water.
Tankless Water Heaters Calgary – Expert Water Heating Services
FlameTech Plumbing & Heating is a trusted name in Calgary for water heaters. Tired of running out of hot water or paying high energy bills for your traditional tanked water heater? Upgrading to a tankless water heater could be the perfect solution for your Calgary home.
Where we cover reverse osmosis water filtration in calgary.
Same-day dispatch across Calgary and Airdrie. Find your neighbourhood for area-specific notes on common builds, hard-water patterns, and the systems we see most.
Get a free reverse osmosis install quote.
Tell us what's going on and our dispatch team will call you back with pricing and availability.
Book a Red Seal plumber in Calgary.
Free estimates, upfront pricing, and a satisfaction guarantee — local technicians who treat your home like their own.
Free estimate · No service charge for quotes · BBB Accredited