Tankless Water Heater Installation in Mississauga
Enjoy endless hot water and lower energy use with a professionally installed tankless system. Real Deal HVAC provides tankless water heater installation in Mississauga. Safely sizing, venting, and commissioning your unit for reliable, efficient performance.
Tankless Water Heater Installation Done Right
Tankless systems need precise setup to perform properly—correct gas line capacity, safe venting, condensate drainage, and the right flow rate for your home’s fixtures and temperature rise. A licensed installation ensures efficient operation, safety, and long-term reliability while meeting manufacturer requirements.
- Right size & GPM – matched to your fixtures and temperature rise for consistent, endless hot water.
- Safe gas & venting – properly sized gas line, intake/exhaust, and condensate handling to code.
- Water quality protection – flush valves, filters, and scale prevention to maintain efficiency.
- Recirculation options – faster hot water with built-in or external pump setups.
- Full commissioning – combustion, airflow, and temperature set and tested before we leave.
- Warranty compliance – installation that keeps manufacturer coverage valid.
Comparing options? See our standard water heater installation page for tank models and guidance on choosing the best fit for your home.
Is a Tankless Water Heater Right for Your Home?
Switching to tankless is a great upgrade, but the best results come from matching the unit and setup to your home. We assess demand, gas and venting needs, and overall layout to make sure you get endless hot water and top efficiency.
- Peak hot-water demand (GPM) – sized for showers, laundry, and kitchen use at the same time.
- Temperature rise – capacity matched to incoming water temperature for Mississauga winters.
- Gas line capacity – proper BTU supply and regulator sizing to keep performance consistent.
- Venting & condensate – safe intake/exhaust routing and drain setup to code.
- Water quality – scale prevention (flush valves/filters) to protect efficiency and lifespan.
- Recirculation options – faster hot water to distant fixtures with built-in or external pumps.
- Electrical requirements – outlet availability for ignition, controls, and pumps.
- Maintenance plan – annual flush/descale to maintain warranty and performance.
Our team designs each installation around your home’s plumbing layout and daily routines, so your tankless system delivers reliable, efficient hot water from day one.
Brands & Models We Install
We install high-quality tankless water heaters from trusted brands Mississauga homeowners rely on. Every home’s demand is different, and we’ll help you choose a unit with the right GPM, efficiency, and features for your budget and hot-water needs.
Navien Tankless Installation
Navien condensing models deliver high efficiency with built-in recirculation options, great for faster hot water to distant fixtures and lower fuel use.
Rinnai Tankless Installation
Rinnai units are known for reliability and steady output, with sizing options for everything from small homes to high-demand households.
Noritz Tankless Installation
Noritz offers durable, efficient heaters with scale-prevention features and serviceable components that help maintain performance over time.
Rheem Tankless Installation
Rheem combines strong value with modern controls and high UEF ratings, delivering dependable hot water and straightforward maintenance.
Our technicians size and commission your tankless system for the right flow rate and temperature rise, so you get consistent, efficient hot water from day one.
Areas We Serve
Real Deal HVAC provides professional tankless water heater installation across Mississauga and nearby communities. From family homes to condos and rental properties, our licensed technicians size, install, and commission systems for safe operation, efficient performance, and dependable hot water.
- Meadowvale – Right-sized GPM for busy households and simultaneous showers.
- Erin Mills – High-output models for larger homes and multiple bathrooms.
- Streetsville – Compact installs and scale protection for older plumbing.
- Port Credit – Condensing units with proper venting for lakeside humidity.
- Cooksville – Affordable, efficient upgrades with quick turnaround.
- Applewood – Space-saving wall mounts ideal for condos and townhomes.
If you’re in Mississauga or anywhere in the GTA, our team has you covered. Learn more about the areas we serve.
Our Most Recent Installs
Schedule Your Tankless Water Heater Installation in Mississauga
Get a free, no-obligation quote with a response within 24 hours. Our licensed HVAC technicians size, install, and commission your tankless system for safe operation and efficient, endless hot water—backed by reliable warranties for homeowners across Mississauga and the GTA.