New water heater installation
New builds, additions, shops and outbuildings all need hot water planned in from the start. Understanding the main factors helps you get the right setup the first time.
When this applies
New home construction
A new home needs a water heater sized for the household and the layout of the house.
Shops, garages and outbuildings
A shop, garage, barn or detached building that needs hot water for a sink, shower or wash-down.
Additions and basement finishes
A new bathroom, suite or rental unit can need its own water heater, or more capacity than the existing one has.
Relocating or changing fuel
Moving a heater, or switching between electric, gas and propane, is treated as a new installation because supply and venting change.
What affects an installation
Location and space
The unit needs room, access for service, and a safe place for any drain pan and relief valve discharge.
Power or gas supply
Electric units need adequate circuit capacity. Gas units need a suitable gas line size and shut-off.
Venting and combustion air
Gas and propane heaters must vent safely and have enough air. Requirements depend on the model and the building.
Cold-weather locations
Shops and outbuildings may need the heater and pipes protected from freezing.
Local requirements
Permits and inspections may apply. Rules differ by location, and we will check what applies to your address.
Good questions to ask about your quote
Clear answers to these make it easy to know exactly what you are getting.
- What site checks are needed before a final quote?
- Will electrical or gas work be needed, and is it included?
- Is a permit required, and is it included in the quote?
- How will venting and drainage be handled?
- What is and is not included in the price?
Common questions
Can you install a water heater in a new build or shop?
Yes. New construction, additions, shops and outbuildings are all new installations. Tell us about the building and what the hot water will be used for.
Can I choose a tank or tankless unit for a new installation?
Often yes, but gas, electrical and space limits affect which options are practical. We will explain what fits your building.
Do I need to be there for the work?
Usually someone needs to give access. We will confirm access, expected duration and whether an adult needs to be present when we schedule the job.
Related water heaters pages
Ready to get started?
Tell us about your project and we will take it from there.