Plumbing Installation Toronto | Licensed Residential & Commercial Pro

Plumbing Installation Toronto: Professional Services for Homes & Businesses

When you need reliable plumbing installation in Toronto, whether you’re renovating a bathroom or upgrading a water heater, getting the job done right is essential.

At Top One Plumbing, we’ve been providing expert plumbing installation in Toronto, North York, Scarborough, Etobicoke, Willowdale, and across the GTA for over 12 years. Our team is fully licensed and insured, and we handle everything from a simple tap swap to a full plumbing rough-in for new construction.

With 367+ five-star Google reviews, Toronto homeowners and property managers trust us to install their plumbing systems correctly the first time. Here’s a complete guide to the installation services we offer.

Tap & Faucet Installation in Toronto

A dripping or outdated faucet wastes water and money. Whether you’re replacing a kitchen tap, upgrading to a touchless faucet, or installing a new utility sink, our licensed plumbers handle all types of tap installation in Toronto.

We work with all major brands and faucet types, including single-handle, double-handle, pull-down sprayer, and wall-mounted models. In addition, we ensure proper water line connections, check for leaks, and test water pressure before finishing the job.

If your home has older copper or galvanized supply lines, we’ll assess the condition and recommend upgrades if needed. This prevents future leaks and ensures your new faucet performs at its best.

Toilet Installation & Replacement in Toronto

A properly installed toilet prevents leaks, wobbling, and sewage odours. We handle toilet installation in Toronto for both new construction and replacement projects. Our service includes:

• Removing and disposing of the old toilet
• Inspecting the flange and wax ring
• Installing the new toilet with a proper seal
• Connecting the water supply and testing for leaks
• Ensuring the toilet meets Ontario Building Code requirements

We install standard toilets, low-flow water-saving models, comfort-height toilets, and wall-hung units. If you’re adding a toilet to a basement or a space that doesn’t currently have one, we handle the full rough-in plumbing as well.

For more on common toilet problems, check out our guide: Common Toilet Issues and How to Solve Them

Water Heater Installation in Toronto

Your water heater is one of the most important appliances in your home. A failing unit can leave you without hot water, spike your energy bills, or even cause water damage. We provide professional water heater installation in Toronto for both tank and tankless systems.

Tank Water Heaters

Traditional tank water heaters store 40–60 gallons of hot water and are the most common type in Toronto homes. They typically last 8–12 years. We install electric, natural gas, and power-vent models, and handle all disconnection, removal, and disposal of the old unit.

Tankless Water Heaters

Tankless water heater installation in Toronto is increasingly popular because these units heat water on demand, saving energy and space. They can last 20+ years with proper maintenance. However, tankless installations are more complex — they often require gas line upgrades, venting modifications, and electrical work. Our team handles all of this.

Regardless of the type, every water heater installation we perform meets Ontario Building Code standards and includes full testing before we leave.

Backwater Valve Installation in Toronto

A backwater valve is a one-way valve installed on your sewer line that prevents sewage from backing up into your basement during heavy storms. Backwater valve installation in Toronto is one of the most effective ways to protect your home from sewage flooding.

As of May 2026, the City of Toronto’s Basement Flooding Protection Subsidy covers up to $1,600 per backwater valve (maximum 2 devices per property). Top One Plumbing is fully licensed to perform this work, and we provide subsidy-ready invoices for your reimbursement application.

If you don’t have a backwater valve, or your existing one hasn’t been inspected in years, call us for an assessment.

Shower & Bathtub Plumbing Installation in Toronto

Whether you’re converting a tub to a walk-in shower, adding a second bathroom, or upgrading your shower fixtures, we handle all shower and bathtub plumbing installations.We handle professional plumbing installation in Toronto for all toilet models. This includes:

• New shower valve and mixing valve installation
• Shower head and hand-held sprayer installation
• Bathtub drain and overflow connections
• Rough-in plumbing for new bathroom additions
• Waterproofing coordination with your contractor

Bathroom renovations are one of the most common reasons Toronto homeowners call us. Consequently, we work closely with general contractors and tiling crews to make sure the plumbing is done before other trades need access.

Sump Pump Installation in Toronto

Toronto’s clay-heavy soil and increasingly severe storms make sump pumps essential for basement flood protection. We provide complete sump pump installation in Toronto, including pit excavation, pump setup, discharge line routing, and battery backup systems.

For a detailed guide on sump pump types, sizing, costs, and the 2026 City of Toronto subsidy, read our full post: Sump Pump Installation Toronto: 2026 Guide & $6,650 Subsidy Update

Fixture Installation for Kitchens & Bathrooms

Beyond taps and toilets, we install a wide range of plumbing fixtures for Toronto homes and commercial properties:

• Kitchen sinks — undermount, drop-in, and farmhouse styles
• Bathroom vanity sinks — vessel, pedestal, and wall-mounted
• Garbage disposals — installation and replacement
• Dishwasher connections — water supply and drain hookup
• Washing machine hookups — hot/cold supply and drain standpipe
• Outdoor hose bibs — frost-proof models for Canadian winters

Every fixture we install is tested for leaks and proper drainage before we consider the job complete.

Commercial Plumbing Installation in Toronto

Top One Plumbing serves commercial property managers and business owners across the GTA. Our commercial plumbing installation services include:

• Washroom fixture installations for offices and retail spaces
• Grease trap installation for restaurants and food service
• Backflow prevention device installation and testing
• Water heater systems for multi-unit buildings
• Plumbing rough-ins for tenant fit-outs

We understand that commercial properties need minimal disruption. Therefore, we schedule work around your business hours and coordinate with building management to keep operations running smoothly.

For more on our commercial services, see: Commercial Plumbing Solutions by Top One Plumbing

Why Hire a Licensed Plumber for Installations in Toronto

It might be tempting to DIY a fixture swap or hire an unlicensed handyman. However, there are important reasons to use a licensed plumber in Toronto for any installation work:

• Building code compliance — Ontario requires licensed plumbers for most plumbing installations. Non-compliant work can result in fines and failed inspections.
• Insurance protection — If an unlicensed installation causes water damage, your home insurance may deny the claim.
• Warranty coverage — Manufacturer warranties on fixtures and appliances often require professional installation.
• Subsidy eligibility — City of Toronto rebate programs (like the basement flooding subsidy) require work performed by a licensed contractor.

In other words, hiring a licensed professional protects your home, your wallet, and your eligibility for government programs.

Why Toronto Homeowners Choose Top One Plumbing

With over 12 years of experience and 367+ five-star Google reviews, Top One Plumbing is one of the most trusted plumbing companies in the GTA. Here’s what sets us apart:

• Licensed and insured — Fully licensed with the City of Toronto for all residential and commercial plumbing work
• Same-day service — Emergency installations and repairs available
• Serving the entire GTA — Toronto, North York, Scarborough, Etobicoke, Mississauga, Vaughan, Ajax, Markham, Richmond Hill, and surrounding areas
• Transparent pricing — Upfront quotes with no hidden fees
• Subsidy-ready documentation — Properly itemized invoices for City of Toronto rebate applications