Tankless Water Heater Installation in Mississauga

A tankless water heater, also known as an on-demand water heater, heats water directly without the use of a storage tank. It provides an endless supply of hot water only when you need it, saving energy.

In the GTA, a turnkey tankless water heater installation typically ranges from $4500 to $8500 for a 199kBTU unit, with an average cost around $6200. This includes the unit, gas line upgrades, venting, and permits.

Yes, a TSSA (Technical Standards and Safety Authority) permit is mandatory for all natural gas tankless water heater installations in Ontario to ensure safety and compliance with provincial codes. RenoHouse handles this process for you.

We specialize in installing high-quality tankless water heaters from leading brands such as Rinnai, Navien, and Bosch, known for their efficiency and reliability.

In most cases, yes. Tankless water heaters require a higher BTU input than traditional tank heaters, often necessitating an upgrade from a 1/2-inch to a 3/4-inch gas line to ensure proper fuel delivery and safe operation.

A standard tankless water heater installation can typically be completed within one day, though complex installations requiring significant gas line or venting modifications might take longer.

Key benefits include an endless supply of hot water, significant energy savings (up to 30-50%), a longer lifespan than traditional tanks, space-saving design, and reduced risk of leaks.

Yes, RenoHouse proudly serves Mississauga and the entire Greater Mississauga Area (GTA), including Etobicoke, Mississauga, Brampton, Vaughan, Markham, and more.

Builder-grade fixtures often use lower-quality internal components that fail within 5–10 years. Common issues include leaky faucets, running toilets, and water heater failures. Upgrading to quality fixtures from brands like Moen, Delta, or Kohler provides lasting performance and better water efficiency.

Most newer suburban homes come with a capped plumbing rough-in in the basement. Finishing this into a full bathroom adds significant living space and resale value — typically $15,000–$25,000 in home value for a $8,000–$15,000 investment. We handle everything from connecting the rough-in to the finished bathroom.

For suburban families with higher hot water demand, tankless water heaters provide unlimited hot water, reduce energy costs by 20–30%, and last 20+ years vs. 10–12 for tank units. They're especially popular in newer homes where the gas line infrastructure already supports them.