Hot Water Tank Repair & Replacement in Calgary
From cold showers to rusty water and leaking tanks, R N T Plumbing and Heating repairs and replaces hot water tanks and tankless units across Calgary — fast, with options to fit any budget.
Prefer to talk first? Call (825) 883-9264. For non-urgent work, request service online and we’ll have your service details ready.
What to Expect
Few things are more frustrating than running out of hot water — or waking up to a leaking tank. R N T Plumbing and Heating repairs and replaces hot water tanks and tankless water heaters for Calgary homeowners.
We help you choose the right unit for your home and hot water usage, whether that's a high-efficiency tank, a power-vented model, or a tankless system. Every installation is code-compliant and backed by our 5-year warranty on labour and parts.
Calgary's hard water accelerates sediment buildup inside tank water heaters, which is why local units often rumble, pop, and lose efficiency years before their counterparts in softer-water cities. We factor your water conditions into every recommendation, so your next unit is sized and chosen for how your household actually uses hot water.
If you're weighing a traditional tank against a tankless upgrade, we'll give you a straight comparison of upfront cost, operating savings, and maintenance — not a sales pitch. Our goal is the right solution for your home and budget, backed by a 5-year warranty on labour and parts.
Expert hot water tank installation and repair across Calgary.
Common Problems We Fix
- No hot water, or it runs out too quickly
- Rusty, brown, or discoloured hot water
- Rumbling, popping, or banging from the tank
- Water pooling or leaking around the base
- Pilot light won't stay lit (gas units)
- Tank is over 10 years old and unreliable
Benefits of Choosing R N T
- Same-day tank repair and replacement
- Tank and tankless options to fit your home
- Energy-efficient upgrade recommendations
- Correct sizing for your household's hot water demand
- Code-compliant, permit-ready installations
- 5-year warranty on labour and parts
How Our Process Works
Assess Your Needs
We review your household size, fixtures, and usage to recommend the right unit and size.
Choose Your System
We explain tank vs. tankless, efficiency, and fuel options with clear pricing.
Install to Code
We remove the old unit and install the new one safely, with permits handled as needed.
Test & Warranty
We test the system, clean up, and back the installation with our 5-year warranty.
What Shapes the Price
Every home and job is different. These are the main factors that shape the final price — and we always give you upfront pricing before any work begins.
- Type of unit (tank, tankless, power-vented, high-efficiency)
- Fuel source (gas or electric) and any venting changes
- Capacity needed for your household
- Permits, disposal of the old unit, and any code upgrades
Keeping Things Running Smoothly
- Flush the tank annually to remove sediment buildup
- Test the temperature/pressure relief valve yearly
- Set the thermostat to 49°C (120°F) for safety and efficiency
- Have the anode rod inspected every few years
Related Calgary Water Heating Services
Start with the service that best matches the problem. If the cause is not obvious, R N T can assess the system and explain the appropriate next step before additional work is approved.
Learn More About Hot Water Tank Repair & Replacement
Practical R N T guides related to this service.
Why Calgary Homeowners Choose R N T
Areas We Serve
Hot Water Tank Repair & Replacement available across Calgary and surrounding communities.
Calgary
All quadrants
Airdrie
Plumbing & heating
Okotoks
Plumbing & heating
Cochrane
Plumbing & heating
Chestermere
Plumbing & heating
Calgary Neighbourhood Service
R N T serves homes and managed properties throughout Calgary, including Downtown, Beltline, Mahogany, Seton, Evanston, Auburn Bay, Cranston, Panorama Hills, Brentwood, Tuscany, Royal Oak, Signal Hill, Evergreen, Copperfield, Skyview Ranch, Deer Ridge, Deer Run, Douglasdale, McKenzie Lake, Midnapore, Shawnessy, Chaparral, Edgemont, Hawkwood, Hidden Valley, Beddington Heights, Harvest Hills, Country Hills, Citadel. Calgary homes vary widely by construction era, so we diagnose the actual plumbing or heating system rather than assuming a problem from the neighbourhood alone.
What Our Customers Say
"I will never use another plumber again. Not only were they able to come out quickly they were on time they were able to diagnose the issue very quickly which reduced the time spent and of course the money very reasonably priced great quality work highly recommended."
Lee Windsor
Google Review · 5-star review
"Rob is great guy, quality work done on short notice, really recommend"
Oleg Shkliaiev
Google Review · 5-star review
"Rob replaced three toilets and repaired some other plumbing issues in my commercial buildings. His pricing and service is excellent. Will recommend and use him again. Dan"
Dan Bowman
Google Review · 5-star review
"Great guy !! Solved the issues promptly"
vishnu thottikat
Google Review · 5-star review
"I manage several properties in Calgary. I have used several different plumbing companies over the years and by far R N T Plumbing has been the best Most recently another company came in because 3 out of 4 sinks had no water. They said all 3 faucets had to be replaced. I decided to get a second opinion from R N T and sure enough no need for replacement, just a part. Saved me over $2000. Such a great team, friendly, very responsive and they want to help, not just make money. Thank you R N T."
Teresa Jacobs
Google Review · 5-star review
"R N T Plumbing was quick to respond and super helpful gearing up the plumbing in our bathroom reno! I highly recommend!"
Mary Ann
Google Review · 5-star review
"If you need a plumber, look no further than R N T plumbing and Heating. Rob provided absolute top-tier service. He was honest about what actually needed to be fixed, didn't try to upsell me on unnecessary parts, and he was incredibly respectful of my home. The boiler now works perfectly, and I’m having them come back to revamp my infloor heating, , 5 star company"
Ross The Driller
Google Review · 5-star review
"Bobby showed up on time and inspected my hot water heater. I thought I was going to need a replacement that was going to cost me thousands of dollars, and he ended up saving that for me! He also installed a set of shower taps and had to run some new lines. He was professional and courteous and when I need his help again, I know he will be there, on time, professional and clean up after himself."
mike ledwidge
Google Review · 5-star review
Frequently Asked Questions
Should I repair or replace my hot water tank?
If your tank is over 10 years old, leaking, or needs frequent repairs, replacement is usually more cost-effective. We'll assess your unit and give you an honest recommendation.
How long does a hot water tank last?
Most tank water heaters last 8-12 years; tankless units can last 20+ years with proper maintenance.
Do you install tankless water heaters?
Yes. We install and service both tank and tankless water heaters, and can help you decide which suits your home and budget.
How fast can you replace a tank?
In most cases we can replace a hot water tank the same day, so you're never without hot water for long.