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Tankless Water Heater Installation and Repair

Tankless Water Heater Installation
Don't let a sudden cold shower or a bulky, failing unit disrupt your home. Cheap Plumber specializes in licensed, code-compliant tankless water heater installation, replacement, and repair throughout Toronto and the GTA. Upgrade to energy-efficient, endless hot water and save space immediately. We arrive fast and provide upfront pricing.
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Licensed and Insured Tankless Water Heater Service by Cheap Plumber — Toronto & GTA

Expert Tankless Water Heater Repair, Replacement, and Installation for Guaranteed Hot Water!

We understand how disruptive it is when hot water stops working on a cold morning. At Cheap Plumber, our goal is to ensure consistent, dependable hot water for your home. As a locally owned business, we provide reliable tankless water heater installation and repair in Toronto for homeowners looking to improve comfort and energy efficiency. Our certified technicians make sure each system is properly sized, installed to code, and ready to deliver continuous hot water year-round.

Whether you need a water heater replacement in Toronto for an old, leaking tank or a brand-new tankless water heater installation, we offer upfront pricing for plumbing service our neighbors have trusted for over 20 years. We arrive fast, protect your home, and get your hot water back the right way.

Call Cheap Plumber today for upfront pricing and same-day service!

Tankless Issues We Fix Right Away

While tankless systems are known for their durability, they can still experience issues due to wear and tear or improper maintenance. If your system is acting up, we provide prompt service to get it back up and running. We commonly address the following problems:

  • No Hot Water or Inconsistent Temperatures: If your water fluctuates between hot and cold during a shower, it often points to a sensor issue or a plumbing crossover that we can quickly diagnose.
  • Ignition Failures: This is often caused by issues with the gas supply or the ignition component itself. We ensure your unit fires up reliably every time.
  • Flame Failures: If your unit starts but shuts down unexpectedly, it may be due to gas pressure issues or electrical faults.
  • Mineral Buildup and Scaling: Toronto has areas with hard water, which can lead to calcium buildup inside the heat exchanger. We provide professional descaling to restore efficiency.
  • Exhaust and Venting Problems: Proper venting is critical for safety. If your unit displays an error code related to air supply, we inspect the venting to ensure it is clear and meets local codes.
  • Leaking Heat Exchangers: A leak inside a tankless unit can cause significant damage to the internal electronics. We identify the source and determine if a repair or a full water heater replacement is the best path forward.
  • System Overload: If your unit is undersized for your home, it may shut down when too many taps are running. We help you size your system correctly for your household’s needs.

How Tankless Water Heater Installation Transforms Your Home?

Upgrading to a tankless system is one of the best investments you can make for your home. Unlike traditional tanks that store and constantly reheat a large volume of water, tankless units only heat water when you turn on a tap. This shift in technology offers several practical advantages:

  1. Endless Hot Water: You never have to worry about being the last person to the shower. Because the water is heated on demand, the supply never runs out.
  2. Significant Space Savings: Traditional tanks are bulky and take up valuable floor space in your basement or utility room. Tankless units are compact and wall-mounted, giving you more room for storage or living space.
  3. Improved Energy Efficiency: By eliminating the need to keep 40 or 50 gallons of water hot 24/7, you reduce your energy consumption. This makes tankless units a leader in energy-efficient water heating.
  4. Reduced Risk of Water Damage: Traditional tanks eventually rust and can leak dozens of gallons of water into your home. Tankless units do not store water, significantly reducing the risk of a major flood.

Why Choose a Tankless Water Heater?

Many of our customers ask if the switch to tankless is worth it. While the initial setup differs from a traditional tank, the long-term benefits usually outweigh the initial considerations.

FeatureTraditional Tank Water HeaterTankless Water Heater
Hot Water SupplyLimited to the tank’s capacityContinuous, on-demand hot water
Physical SizeLarge, typically floor-standingCompact, usually wall-mounted
Expected LifespanAbout 10 to 12 yearsOften 20 years or more
Energy EfficiencyLower (standby heat loss)Higher (heats only when needed)
Utility CostsHigher monthly billsOften 20% to 30% lower bills

What to Expect When You Choose Cheap Plumber for Tankless Installation or Replacement?

We are proud to serve both residential homeowners and commercial property managers throughout the Greater Toronto Area. As a family-run company, we treat every property with the same care we would our own.

Professional Plumbing Service in GTA

Our team is physically present in the communities we serve. Whether you live in a historic home in the Beaches that needs a complex retrofit or a modern condo in North York, we understand the specific plumbing requirements of your area. We serve clients in Toronto, Aurora, East Gwilimbury, Etobicoke, King City, Markham, Mississauga, Newmarket,  Richmond Hill, Scarborough, Toronto Downtown, Toronto East York, Toronto North York, Vaughan.

For our commercial clients, we provide high-capacity solutions designed to handle the heavy demands of restaurants, office buildings, and multi-unit residential properties. We know that downtime for a business means lost revenue, so we prioritize fast, reliable service to keep your operations running smoothly.

Our Service Standards

  • Verified Trade Licenses: You will only work with professional, certified plumbers.
  • Upfront Plumbing Quotes: We provide competitive pricing before we start any work.
  • Safety and Code Compliance: We handle all waterline and drainage connections to comply with GTA plumbing codes.
  • Clean Workspace: We respect your house. Our plumbers wear shoe covers and ensure your home is spotless when the job is done.
  • Documentation: We provide the necessary paperwork for your warranty and offer maintenance guidance.

Our Tankless Water Heater Services Include

Tankless Water Heater Installation

We at Cheap Plumber provide a complete, stress-free installation service. Our licensed, insured technicians handle the entire process, from correctly sizing your new unit to expertly installing all venting and water lines to meet every local Toronto/GTA code. This ensures a safe, efficient, and long-lasting system for your home.

Tankless Water Heater Repairs

If your existing unit is showing error codes or making unusual noises, do not wait for it to fail completely. We are Toronto tankless water heater experts and can service all major brands. We carry common parts on our trucks to ensure that most repairs can be completed on the first visit. 

Tankless Water Heater Replacement

When a water heater reaches the end of its life, we help you navigate the replacement process. If you currently have a traditional tank, we can handle the conversion to a tankless system, including the necessary upgrades to your gas and venting systems. If you are looking for water heater replacement near me because your current tankless unit is outdated, we can swap it for a newer, more efficient model that fits your existing setup.

Tankless Water Heater Maintenance

To get the most out of your investment, regular maintenance is essential. Toronto’s water can cause scale buildup in the delicate heat exchanger of a tankless unit.

  • Annual Descaling: We recommend a professional flush once a year to remove mineral deposits. This maintains the unit’s efficiency and prevents the heat exchanger from overheating.
  • Filter Cleaning: Most units have a small filter at the cold-water inlet. We clean this to ensure proper water flow.
  • System Inspection: We check all electrical connections, gas pressures, and venting to catch potential problems before they lead to a breakdown.

Why Tankless Water Heater Professional Installation Matters?

A tankless water heater is a sophisticated piece of equipment that requires precise calibration of water flow and pressure to function correctly. Attempting a DIY installation or hiring an unqualified person can lead to significant issues, such as water damage, low pressure, or total system failure.

As professional tankless water heater installers, we ensure that your unit is securely mounted and perfectly integrated with your home’s existing plumbing. We focus on sizing the water lines correctly to meet your household’s demand and ensuring the condensation drainage is handled properly. By choosing Cheap Plumber, you are choosing peace of mind and a reliable installation that protects your investment.

Ready to Transform Your Home’s Hot Water Experience?

Do not let another winter catch you with a failing system. Whether you need a repair, maintenance, or a full water heater replacement in Toronto, our team is ready to help. We offer same-day availability and honest service built on 20 years of experience.

Cheap Plumber is your reliable plumber in Toronto! Contact us now to get 5-star service!

FAQs About Tankless Water Heaters

What is the difference between tankless and traditional heaters?

A tankless heater only heats water when you turn on the tap, providing endless hot water and lower energy costs. Traditional tanks waste energy keeping water hot 24/7 and can run out during heavy use.

How long does the installation take?

Most installations are completed in 4 to 8 hours. We handle the removal of your old unit, the new installation, and the full cleanup in a single day.

Can I switch from a tank to a tankless system?

Yes. Most Toronto homes and commercial properties can be converted to tankless systems with the proper water line and drainage adjustments.

Do tankless water heaters work for large families or commercial use?

Yes, tankless systems can be sized or paired to handle higher demand. For large homes or businesses, we may install multiple units or high-capacity commercial models to ensure a steady supply of hot water.

What maintenance does a tankless system need?

We recommend a professional inspection and descaling once a year to remove mineral buildup. Cheap Plumber offers affordable maintenance plans to keep your system efficient and reliable.

How long do tankless water heaters last?

With regular maintenance, a quality tankless system can last 20 years or more.

Are tankless water heaters energy efficient?

Yes. They are up to 30% more efficient than traditional heaters because they eliminate standby energy loss. You only pay for the water you actually heat.

What is the cost for installation in Toronto?

Pricing varies by brand and plumbing setup complexity. Generally, Toronto homeowners can expect to pay between $2,000 and $5,000, which includes the unit, labor, and materials. We always provide upfront quotes before we start.

What brands do you service?

We install and repair all major brands, including Navien, Rinnai, Rheem, Noritz, Bosch, and Takagi.

Which areas do you serve?

We serve the entire GTA, including Scarborough, North York, Etobicoke, Mississauga, Vaughan, Markham, Richmond Hill, Aurora, Newmarket, King, and East Gwillimbury.

Benefits of Choosing Us for Your Drain and Plumbing Repairs

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Fixed Prices, No Surprises

At Cheap Plumber, we show our prices up front, so you know exactly what to expect. You won’t find any hidden costs or unexpected bills here.

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Always Available with 24/7 Service

Day or night, rain or shine, we're here for you. Our 24/7 service ensures that no matter when a plumbing issue strikes, we're just a call away.

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Respect for Your Home

We know that your home is special. Our plumbers treat every house with the utmost respect, ensuring we leave it just as we found it.

Toronto Plumbing Service Area

We are glad to give you services in
different areas of Toronto, such as:

  • York
  • Etobicoke
  • Scarborough
  • Toronto
  • North York
  • East York
  • * All plumbing fixtures and faucets have to be supplied by owners. Price is correct through M-F 7.30 am-5.00 pm. Premium charges will apply for after hours, weekends and hollidays. Parking fee will apply if needed. Cost of the service calls is for the labor only. Price list for Toronto, Mississauga, Thornhill, Richmond Hill, Maple and Concord only.

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  • * All plumbing fixtures and faucets have to be supplied by owners. Price is correct through M-F 7.30 am-5.00 pm. Premium charges will apply for after hours, weekends and hollidays. Parking fee will apply if needed. Cost of the service calls is for the labor only. Price list for Toronto, Mississauga, Thornhill, Richmond Hill, Maple and Concord only.

Cheap Plumber in Toronto and GTA: fair price without adding any hidden costs

Book your drain and plumbing services right now

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Feedback on Cheap Plumber

Karen Cupler, Toronto

January 28th, 2026
Trenchless Service

We were dealing with frequent drain clogs and slow drainage, and after some investigation, we discovered that tree roots had infiltrated our sewer line. Instead of tearing up our yard, Cheap Plumber recommended trenchless drain repair. They were quick, professional, and restored our pipes without any major digging. The process was seamless, and we’re relieved to have the issue fixed without the mess. Highly recommend their trenchless services!

Jessica T.

December 9th, 2025
Trenchless Sewer Line Repair

We had a serious issue with our main sewer line and didn’t want to deal with the hassle of digging up our yard. Cheap Plumber offered trenchless drain repair, and it was a game-changer. They quickly identified the problem, repaired the pipe without disrupting our landscaping, and the price was very reasonable. We’re extremely happy with the results!

Emily S., Toronto

December 1st, 2025
Leaking Toilet Repair

I called Cheap Plumber for a constantly running toilet that was driving us crazy. They found the issue instantly, replaced the faulty parts, and had everything working again fast. Honest advice and no upselling.

Daniel P.

November 14th, 2025
Sewer & Drain Backup Repair

We were dealing with a stubborn floor drain backup that kept returning no matter how many times we tried to clear it. It was really starting to affect our daily routine, and we needed a permanent solution. We contacted Cheap Plumber, and the technician arrived promptly, ready to tackle the issue. He took the time to explain exactly what was happening and what needed to be done. Using the right equipment, he cleared the blockage and ensured the drain was flowing properly. The issue hasn’t come back, and we couldn’t be happier with the results. On top of that, their pricing was more reasonable than any other quote we had received, making the whole experience even better. We finally have peace of mind, and we know who to call next time!

Sarah L., Etobicoke

October 2th, 2025
Drain Inspection, Drain Cleaning

Our kitchen sink had been backing up, and no matter what we tried, the problem just wouldn’t go away. We called Cheap Plumber, and they arrived on time, ready to solve the issue. The technician detected a massive blockage deep within the pipes. In less than an hour, they had cleared it, and the sink was draining perfectly. We’re so relieved to finally have the problem solved, and at such a reasonable price.

Mark R.

September 9th, 2025
Emergency Plumbing Service

Cheap Plumber saved us during a late-night plumbing emergency. A pipe burst in our basement, and they arrived quickly, diagnosed the issue right away, and prevented major damage. Fast, calm, and professional service at a price we could actually afford.

Emily

July 2th, 2025
Rough-In Service

I recently hired Cheap Plumber for their rough-in service and couldn’t be happier with the results! From their prompt arrival to the meticulous workmanship, they impressed at every step. Communication was clear, they left the site spotless, and their professionalism shone through. I highly recommend Cheap Plumber for their top-notch service.

Kevin

March 21th, 2025
Leak Detection Services

Cheap Plumber came through when we noticed a mysterious water stain on our basement ceiling. Their leak detection service was fast, accurate, and non-invasive. They quickly pinpointed the issue without tearing into walls and had it fixed the same day. Great service, fair pricing, and real peace of mind!

S. from North York

February 18th, 2025
Shut-off Valves Installation

I recently hired Cheap Plumber to install new shut-off valves for my kitchen and bathroom, and the experience was excellent from start to finish. Booking the appointment was easy, and the plumber arrived right on schedule. He explained what needed to be done, replaced the outdated valves efficiently, and even checked for any potential issues while he was there.

The work was done neatly with no mess left behind, and the pricing was exactly what they quoted—no surprises. I now feel much more confident knowing I can shut off water locally in case of an emergency. Highly recommend Cheap Plumber for this kind of work—fast, honest, and professional.

Martin L. from Toronto

September 25th, 2024
Old Cast Iron Pipes Descaling

We recently had Cheap Plumber come in for cast iron pipe descaling, and the difference has been incredible. Our drains were slow and noisy, and we were starting to get worried about a full blockage or worse. The team showed up right on time, walked us through the process, and got to work with minimal disruption.

They used special equipment to clear out years of buildup inside our old pipes—no digging or tearing things apart. By the time they finished, everything was flowing smoothly again. It was fast, clean, and surprisingly affordable. I highly recommend this service if you have an older home like ours. These guys really know what they’re doing!

Jeremie from Toronto

August 5th, 2024
Drain Line Repair (trenchless)

I had a serious issue with my main drain line and was dreading the idea of having my yard torn up for repairs. A friend recommended Cheap Plumber’s trenchless drain repair service, and I’m so glad I went with them. The team was punctual, professional, and explained exactly how the no-dig process worked. They were able to repair the damaged section of pipe without any excavation, and everything was completed in just one day. My drains are working perfectly now, and you’d never know there was a problem to begin with. Highly recommend!

Patrick from North York

March 5th, 2024
Drain and Plumbing Services for Rental Properties

I’ve been using Cheap Plumber for several years now for a couple of rental properties, and they’ve always delivered great service. They’ve handled everything from snaking drains to replacing a main drain with minimal disruption. Most recently, my parents had a backup, and Cheap Plumber was there the next day—quick, clean, and efficient. Their pricing is fair, and the whole team communicates clearly throughout the process. I’ll definitely continue to rely on them!

Natalie

January 12th, 2024
Snaking Service

I was dealing with a stubborn clog that just wouldn’t clear, so I decided to call in a snaking service—and I’m so glad I did! Plumbers showed up right on time, were highly professional, and took the time to clearly explain the process before getting to work. They were efficient, thorough, and made sure the blockage was completely cleared. My drains are flowing perfectly again!

Testimonial Cooper

Cooper

April 10th, 2023
Pipe In Powder Room and My Experience With CP

A few days ago the sink in the powder room started to leak. The pipe was corroded where the trap is located. I called Max and he sent Andres who replaced the pipe and left the powder room in perfect order. He was fast and efficient. I’ve used Max and his team for 10 years for major jobs replacing lead water lines in the front yard and installing a much-needed backwater valve under my house to prevent flooding during heavy rains. During a winter freeze, my pipes froze inside the wall and burst at midnight. Max’s team was here by breakfast and moved the vulnerable pipes from the exterior wall to inside the ceiling. Hardworking, decent, efficient crew.

testimonial of LL

LL

June 15th, 2023
Installation of Water Line

We have had a great experience with Cheap Plumber. They are reasonably priced, offer good advice, and do a quick and professional job. I would highly recommend them to anyone looking for plumbing services for their kitchen.

testimonial lorraine

Lorraine

April 20th, 2023
Installed 2 New Faucets And Repaired Pipe In Garage

Very satisfied with the quality of work. Very nice gentleman. Punctual. Took the time to explain everything to me. Would highly recommend them to anyone. I will call them again if I need work done.

Testimonial Valerie

Valerie from Old Toronto

March 6th, 2022
New Faucet

We got a fast quote on email and a quick appointment slot for our small job. The two guys who came to do the job were efficient and pleasant. Exactly what we had hoped, a small job done well and quickly.

Testimonial 3

Ian Lee from Markham

October 25th, 2023
Replaced Horizontal Sewer Line In Basement In 100 Year Old House

I was renovating the basement of my 100-year-old house to replace the very old crumbling clay horizontal sewer line out to the street. I had several unsatisfactory quotes from other plumbers. I then contacted Cheap Plumber. Max was very reasonable and very efficient and timely. They also suggested a backwash valve that will prevent the sewer from ever backing up into the house. I agreed and they provided an excellent price and did a superb job. This week, I decided to install the Moen Flo valve (sold by Home Depot Canada and Amazon.ca) that shuts off all water to the house – IF ever there is a leak anywhere in the house in the toilet or water tank etc. I immediately contacted Max – who provided an excellent price and was able to install it shortly after the valve arrived. I was very pleased as no leaks and they cleaned up afterwards. I will use Max and Cheap Plumber for any future plumbing jobs. I strongly recommend this company.

Testimonial Yuri

Yuri

October 26th, 2023
Back Water Valve Installation

Max and his team installed a back water valve in my house, replaced some of the water lines, installed new water meter for me. Everything was done quickly, professionally, perfect clean up, filled out and submitted the forms for the rebate from the city. When I noticed a tiny leak after the job completion, a technician was sent over within minutes and everything was fixed very quickly. The services were reasonably priced, and I would definitely recommend this company to anyone with plumbing needs. Thank you!

Testimonial Silvi

Sylvie

December 24th, 2022
Shower Repair

Price was very reasonable, job was done correctly, water temperature issue was resolved. We had multiple people come in to the house before and did not fix the issue, Cheap Plumber was able to correct the situation. We are happy with the service and would definitely call again if we ever run into any issue.

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Rudy from Toronto

May 8th, 2022
Drain Work

I had to get the water service line replaced because of the new smart water meter requirement. Got quotes on a monday. Went with Max and although I was a little concerned about the lack of reviews on Homestars, I went with my gut and my gut was right. The work was done by wednesday (in by 8:30 out by 3:30). Max and his guys were punctual, careful about maintaining site cleanliness and very respectful. His price was the best of three quotes and he is honest and straightforward in his communication. His follow up once the job was complete was great. I highly recommend Cheap Plumber for any plumbing issue you may have and I am happy with my new water pressure!

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Caroline from North York

October 20th, 2023
Drain Work and Sump Pump Installation

I was one of six houses flooded on my street. All of us had plumbing work done, and I heard only good reports about the work and price.I wouldn’t hesitate to recommend Max to my friends, expecting they would get the same positive results.

Testimonial 2

Patricia from Scarborough

September 21th 2023
Cracked Soil Stack

Our 98 year old cast iron soil pipe needed replacing. Replacing it was tricky as we had a newly renovated kitchen and basement bathroom and the stack was embedded between the outside brick wall and the new tiles and cabinets. Max and his crew did an amazing job of replacing the stack with only minimal damage to the basement bathroom and none to the kitchen. He then had a crew come in to restore the wall, tiles, etc in the basement. The team is hardworking, trustworthy, and professional. This is the second job they have done for us and both times we were more than satisfied. Ps. They are also just really nice people. Worth every penny.

Testimonial Yulia

Yulia

September 13th 2023
Drain Work and Sump Pump Installation

Andrew did a great job fixing our drain. He was punctual, polite, knowledgeable and very patient with my questions. He quickly identified the problem (tree roots in drain pipe) and worked hard on snaking the tough roots until he was satisfied everything was clear. We were so lucky to have his help. Thanks Max and Andrew!

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