Laneway Suite Plumbing Services Toronto

Choose MT Drains & Plumbing for reliable laneway suite plumbing services in Toronto.

Building a laneway suite in Toronto requires a reliable plumbing system that meets all city regulations. MT Drains & Plumbing provides professional laneway plumbing services, from main water and drain connections to full interior rough-ins.

With over 30 years of experience working with Toronto residential systems, we know how to design, install, and connect plumbing for secondary units — efficiently and to code.

Licensed & Insured Plumbers

24/7 Availability

Offering Plumbing Services Since 1991

Top Rated

Why Homeowners and Builders Work with MT Drains

30+ Years of Local Experience: We understand the plumbing challenges specific to laneway suites in Toronto.
Licensed & Insured: All work meets Ontario Building Code and City of Toronto regulations.
Efficient Planning: We coordinate directly with builders, engineers, and inspectors to avoid project delays. Trenchless
Options Available: Minimize property disruption when installing water and drainage lines.
Transparent Pricing: Upfront quotes with clear scopes of work. No surprises.

Key Plumbing Services for Laneway Suites

Water Supply Connection

We connect your laneway suite’s water service to your main property supply using trenchless boring or trenching methods, depending on access. We design the system to maintain proper water pressure for both units.

Key Considerations:

Best route for water lines (through basement ceiling or exterior trench)
Pressure balancing for both homes
Sub-meter options for tracking rental unit water usage

Full Rough-In and Fixture Installation

We provide full plumbing rough-ins for:

Bathrooms
Kitchens
Laundry rooms
Mechanical rooms (if applicable)

We also install all standard fixtures, ensuring correct flow rates, venting, and drainage.

Water Heating Solutions

Most laneway suites benefit from compact tankless water heaters due to space limitations. We size and install efficient systems to support the suite’s full water demands without wasting energy or space.

Key Considerations:

Sizing the system based on the number of plumbing fixtures
Choosing between gas and electric models depending on site utilities
Venting requirements for tankless systems in small structures
Installing in mechanical closets, kitchens, or wall-mounted setups
Ensuring adequate hot water delivery without pressure loss

Drainage Connection

Drainage is tied into the existing sewer system based on property layout and city approvals. We handle full underground drain connections and ensure proper slope and backflow prevention.

Key Considerations:

Location of the main drain (street side vs. laneway side)
Backwater valve installation (recommended for most laneway homes)
Compliance with City of Toronto backflow prevention rebate programs

Planning for a Laneway Suite? Start with the Right Plumbing Partner

Plumbing is one of the most critical systems in a laneway suite — and mistakes during installation can lead to major costs later.

MT Drains & Plumbing brings the planning expertise, licensed workmanship, and problem-solving experience to ensure your project runs smoothly from start to finish.

Site assessment and connection strategy
Permit assistance for plumbing rough-ins
Coordination with general contractors or homeowners directly

Request a Service Call

Request a Laneway Plumbing Assessment Today

If you’re building or converting a laneway suite in Toronto, schedule a consultation with MT Drains & Plumbing.

We’ll assess your property, recommend the best connection method, and provide a detailed scope of work for your plumbing needs.

FAQ

Do I need a separate water connection for my laneway suite?

No. Your laneway suite typically shares the main water service from your primary house. We run a branch line using trenchless boring or trenching methods, depending on access and property conditions.

Can I install a separate water meter for a laneway suite?

You cannot install a separate city meter, but we can install a sub-meter to track your laneway suite’s water usage separately from the main house. This is useful for rental units.

What’s the best way to connect the drain system for a laneway house?

We connect the laneway suite’s drainage to your main house’s existing sewer system. If necessary, we also install backwater valves to protect against basement flooding and sewage backup.

How much space do I need for plumbing installation?

We typically need space for small access pits (4’x4’) at both the main house and laneway suite for trenchless boring. If trenching is needed instead, the trench route must be clear of obstacles like major trees or retaining walls.

What plumbing fixtures are required in a Toronto laneway suite?

Your laneway suite must have a kitchen sink, a bathroom with a toilet and shower or tub, and hot/cold water supply to meet the Ontario Building Code and City of Toronto requirements.

What type of water heater is best for a laneway house?

We typically recommend tankless water heaters to save space and deliver on-demand hot water. We size the system based on your fixture count and available utilities (gas or electric).