Need reliable water heater replacement in Ottawa? Lister Plumbing installs and replaces hot water tanks, electric units, and tankless water heater systems with honest pricing, clear timelines, and owner-led workmanship.
A broken water heater can quickly disrupt your day. If you are dealing with no hot water, a leaking tank, a cold shower, strange noises, discolored water, water pooling around the unit, or signs of gas leaks, it may be time to replace your old water heater or schedule a professional inspection.
Our team helps homeowners choose the right model, compare water heater types, and complete the installation safely. Whether you need an electric water heater, gas water heater advice, a tankless system, or a standard hot water tank replacement, Lister Plumbing provides reliable installation with upfront pricing and clear communication.
We know a water heater replacement is not something most homeowners plan for. Our goal is to restore hot water quickly, prevent water damage, and help you choose a new water heater that fits your home, hot water usage, fuel type, and budget.
Call or text to describe the issue and schedule a video or on-site inspection. We ask about the current system, symptoms, fuel type, and whether you have a hot water tank, electric unit, or tankless model.
We assess your current system, including the old tank, tankless models, electric units, heating element, thermostat, pressure relief valve, gas valve, and visible plumbing. We recommend water heater repair or full replacement based on age, condition, safety, and local codes.
You receive an upfront, detailed quote covering new unit options, installation, proper disposal of the old unit, and expected timeline. Free estimates are available for larger jobs.
No deposit is required for most replacements. We schedule the installation at a time that works for you and confirm what to expect before work begins.
Certified technicians complete safe water heater installation, including venting adjustments, gas line or gas valve checks where applicable, pressure relief valve testing, cold water lines, electrical connections, and setup of the new system.
We test water pressure, check for leaks, verify thermostat and heating element operation, inspect the drain, confirm proper hot water output, and make sure the unit runs safely.
We explain controls, review safety steps to help prevent scalding, recommend annual maintenance to reduce mineral deposits, and provide our one-year workmanship warranty.
Real feedback from our valued customers based on their genuine experience with Lister Plumbing.
Whether your old unit needs a simple repair or your home needs a full replacement, Lister Plumbing can help restore reliable hot water with safe, professional service.
A water heater can fail suddenly, but many warning signs appear before a complete breakdown. If you notice any of the following, it may be time to call a plumber:
A leaking tank is often a clear sign that replacement is needed. If ignored, it can lead to significant water damage and cooling or heating issues in nearby utility spaces.
Traditional hot water tanks store heated water in a tank so hot water is ready when needed. They are common, familiar, and often cost less upfront than tankless systems. If you want to replace an old tank with a similar new unit, the installation may be straightforward if existing plumbing, drain, and connections are in good condition.
Electric water heater installation is a common choice for homes without natural gas access. Electric units use heating elements to warm water and may require circuit breaker checks, electrical connection review, and proper sizing based on household demand.
A gas water heater uses natural gas to heat water and must be installed carefully with proper gas line, gas valve, venting, and safety checks. If you are considering a gas water heater replacement, our team can advise on local codes, venting requirements, and whether the current setup is safe.
A tankless water heater heats water on demand instead of storing it in a tank. Tankless water systems may offer energy savings, longer lifespan, and unlimited hot water when sized correctly. Tankless models can be electric or gas, and installation may require venting adjustments, gas line updates, or electrical upgrades.
A new water heater can improve energy efficiency, especially when replacing older models that waste energy or struggle to keep up with demand. Modern electric units, tankless systems, and efficient hot water tanks can help reduce operating costs while improving reliability.
Energy savings depend on your current system, fuel type, hot water usage, unit size, and maintenance habits. We can review major brands, water heater brands, and right model options to help you choose a new heater that fits your home.
Lister Plumbing provides water heater replacement and related plumbing services across:
If you are nearby and need water heater replacement, contact Lister Plumbing to confirm availability.
How do I know if I need a water heater replacement or repair?
Do you install tankless water heaters in Ottawa?
Yes. Lister Plumbing installs tankless water heater models and electric tankless units. We review hot water usage and recommend the right tankless system for energy efficiency and unlimited hot water needs.
Can you replace electric water heaters and gas units?
We specialize in electric water heater installation and can advise on gas water heater replacement where applicable. All gas-related work includes gas line and gas valve checks and follows local codes.
Do you offer same-day service for a leaking or broken water heater?
We aim to provide fast response for emergencies like a leaking tank or no hot water. Contact us because same day service may be available depending on schedule and parts availability.
Will you dispose of my old water heater?
Yes. Proper disposal of the old unit is included in our replacement service. We follow local disposal rules and ensure the old tank is removed safely.
How long does a water heater replacement take?
Most full replacements are completed in a single visit and typically take a few hours. Timelines vary with complexity, such as venting adjustments, gas line work, or switching fuel type.
Do you provide upfront pricing and free estimates?
We provide upfront pricing and detailed quotes. Free estimates are available for larger jobs, and small promotional incentives may be available on request.
What should I consider when choosing a new water heater brand or type?
Consider fuel type, such as electric vs gas, hot water usage, energy efficiency ratings, available space, and whether you want unlimited hot water from a tankless water heater. We help select the right model and major brands that fit your needs.
How do I prevent mineral deposits and extend my unit’s life?
Annual maintenance, including flushing the tank and checking the anode rod, helps reduce mineral deposits. For tankless systems, recommended descaling prevents buildup and preserves efficiency.
Are your technicians certified?
Lister Plumbing’s team includes licensed professionals with extensive hands-on experience. We follow local codes and provide professional installation and testing.
What safety checks do you perform after installation?
We test for leaks, verify pressure relief valve operation, inspect venting and gas connections, check electrical circuits and heating elements, and confirm proper water pressure before leaving the site.
Can you help if my water is discolored after a new installation?
Discolored water can result from flushing or old pipes. We can flush the system and advise on whether the issue is the heater or your home plumbing.
Will a new water heater improve energy efficiency?
Yes. Modern electric units and tankless systems are more energy efficient. We can compare expected energy savings and recommend options that lower operating costs.
Do you handle installations for multi-unit or triplex buildings?
Yes. Lister Plumbing has experience with multi-unit and triplex plumbing projects, including water heater replacements for larger jobs in Carleton Place and Ottawa-area properties.
What warranty do you offer on water heater replacement?
We provide a one-year workmanship warranty on installations. Manufacturer warranties for the new unit vary by brand, and we review both so you know what is covered.
