Plumbing FAQ — Common Questions Answered

Drain cleaning in Ontario typically costs $150–$350 for a standard main-line or kitchen drain, depending on access and blockage severity. Hydro-jetting for heavily blocked or commercial drains ranges from $300–$600. Camera inspection is usually $200–$400.

Prices vary by city, access difficulty, and complexity. Mechora Group always provides a written quote before any work begins so there are no surprises. Call (249) 733-7907 for a free estimate.

A sewer camera inspection in Ontario typically costs $200–$400 for a standard residential main line. The price depends on the length of the line and site conditions. The inspection includes a video review and a professional assessment of the pipe's condition — and can save thousands of dollars by identifying problems before they become emergencies.

When you book drain cleaning with Mechora Group, we can often combine a camera inspection at a discounted rate. Ask us for a bundled quote.

Tank water heaters store 40–60 gallons of pre-heated water continuously. They cost less upfront ($800–$1,500 installed) but use energy constantly to keep water hot and have a lifespan of 8–12 years. They can run out of hot water during peak demand.

Tankless (on-demand) water heaters heat water only when you need it. They never run out, use 20–30% less energy, last 20+ years, but cost more upfront ($1,500–$3,000+ installed, depending on the unit and gas/electrical work required).

Both are available as Enbridge rental buyout replacements in Ontario. Our technicians can help you choose based on your household's hot water demand and budget.

Yes — in most Ontario municipalities, a permit is required for water heater replacement under the Ontario Building Code (OBC) and TSSA (Technical Standards and Safety Authority) regulations. This applies whether you are replacing with a tank or tankless unit.

Mechora Group handles the permit process on your behalf. The permit cost is included in or added to your written quote, and we ensure the installation passes all required inspections. Never allow a contractor to replace a water heater without pulling the proper permits — it can void your insurance and create problems when you sell your home.

Step 1: Shut off the water. Find the shut-off valve for the affected fixture (usually under sinks or behind toilets) or your home's main shut-off valve and turn it clockwise to close it. This stops water from flowing to the damaged area.

Step 2: Protect your property. Move items away from the water, place towels or containers to catch drips, and take photos for your insurance provider.

Step 3: Turn off the water heater if you are shutting off the main supply — running a water heater without water can damage the unit.

Step 4: Call a licensed plumber immediately at (249) 733-7907. Do not attempt repairs on pressurized water lines or gas connections yourself.

Step 5: Stay safe. Do not operate electrical outlets, switches, or appliances near standing water.

Natural gas is odourized with mercaptan to smell like rotten eggs or sulphur. Even a faint smell should be treated as a potential emergency. Do not re-enter the building until the gas utility has inspected and cleared the premises. Mechora Group can assist with any follow-up plumbing or mechanical work once the site has been declared safe.

Pipes freeze when surrounding air temperature drops below 0°C in areas without adequate insulation or heat. The most common trouble spots in Ontario homes are:

• Pipes running through exterior walls with insufficient insulation
• Unheated crawlspaces and basements with poor insulation
• Pipes in attached garages
• Cottages and vacation properties left unheated
• Garden hose connections left attached after fall

Prevention tips: Keep indoor heat above 13°C even when travelling. Open cabinet doors under sinks on exterior walls during cold snaps. Disconnect garden hoses before winter. Insulate exposed pipes in unheated areas with foam pipe wrap. If a pipe freezes, call a plumber before attempting to thaw it — a thawed pipe that has cracked can release significant water.

For most Ontario homes:

• Kitchen drains: Every 12 months — grease, food particles, and soap accumulate quickly.
• Main sewer line: Every 2–3 years for preventive maintenance. More frequently if your home has mature trees (root intrusion) or is on an older clay or cast-iron system.
• Bathroom drains: Every 1–2 years, depending on hair and soap buildup.
• Commercial kitchens: Quarterly — health codes and grease trap requirements apply.

Regular drain cleaning is far less expensive than emergency service calls and prevents water damage from backups. Mechora Group offers maintenance service agreements for commercial properties and landlords managing multiple units.

Warning signs that your sewer line may need repair or replacement include:

• Multiple drains in the house backing up or draining slowly at the same time
• Toilets gurgling or bubbling when you run a sink or washing machine
• Persistent sewage odours in the basement or yard
• Unusually lush, green, or wet patches in the lawn above the sewer line's path
• Sinkholes or depressions in the yard
• Recurring blockages in the same drain despite repeated cleaning
• Foundation cracks or shifting (in severe, long-term leak cases)

A sewer camera inspection ($200–$400) provides a definitive assessment of your pipe's condition and is strongly recommended before any major repair decision.

The clearest signs of a main-line blockage include multiple fixtures draining slowly or backing up simultaneously, water pooling around the basement floor drain, toilets that bubble or gurgle when you run appliances, and sewage odours throughout the house. Unlike a single clogged drain (which affects only one fixture), a main-line blockage affects the entire plumbing system.

A main-line blockage is a plumbing emergency. Call a plumber promptly — a full backup can force sewage into your home through floor drains and lower-level fixtures, causing significant damage and health hazards.

Low water pressure can have several causes in Ontario homes:

• Mineral buildup (scale): Ontario's notoriously hard water causes calcium and magnesium deposits inside galvanized steel pipes over time, progressively restricting flow. This is very common in homes built before 1980 with original galvanized supply pipes.
• Partially closed main shut-off valve: The main or street-level valve may have been partially closed during previous work and never fully reopened.
• Failing pressure-reducing valve (PRV): Many homes have a PRV at the main entry point. These have a lifespan of 10–15 years and can fail in either direction.
• Hidden leak in the supply line: A leak diverts water away from fixtures.
• Municipal supply issues: Temporary low pressure from the city's distribution system, common during high-demand periods or main breaks.

A plumber can diagnose the cause in one visit and recommend the appropriate fix — whether it's descaling, pipe replacement, PRV adjustment, or a service call with your municipality.

Hydro-jetting is safe for most modern plumbing materials — PVC, ABS, copper, and newer cast iron in good condition. However, caution is required for:

• Orangeburg pipe: A tar-and-paper composite used in Ontario from the 1940s–1960s. Extremely fragile and not suitable for any high-pressure cleaning.
• Old clay tile: Common in pre-1950s sewer systems. May be cracked, offset, or have deteriorated joints that cannot withstand high pressure.
• Badly corroded cast iron: If the pipe wall has thinned through rust, jetting can break through it.

That is why Mechora Group recommends a camera inspection before hydro-jetting in any home built before 1975. The inspection lets us confirm the pipe's condition and select the appropriate pressure and nozzle type — or advise that the pipe needs lining or replacement before cleaning.

Trenchless sewer repair — specifically CIPP (cured-in-place pipe lining) — restores a damaged or deteriorated sewer line without requiring a full excavation. A resin-saturated liner is inserted into the existing pipe through an access point, then inflated and cured (hardened) in place with heat or UV light, forming a smooth new pipe inside the old one.

CIPP works well in Ontario conditions and is especially valuable when the sewer line runs under a driveway, landscaping, or finished floors, as it avoids the cost of excavation and restoration. It is effective on clay, cast iron, and concrete pipes with cracks, root intrusion, offset joints, or corrosion.

Trenchless repair typically costs more upfront than traditional dig-and-replace, but the total cost including restoration of surfaces is often comparable or lower. It also has a significantly shorter disruption time — usually one day versus several days for excavation. Mechora Group provides both CIPP trenchless and traditional excavation methods depending on what is most appropriate for your situation.

Most drain cleaning visits take:

• Standard drain snaking (single fixture): 45–90 minutes including setup, snaking, and cleanup.
• Main sewer line snaking: 1–1.5 hours.
• Hydro-jetting (main line): 1.5–2.5 hours, including equipment setup.
• Camera inspection added: An additional 45–60 minutes.

Complex blockages involving root intrusion, collapsed pipe sections, or hard mineral buildup may require multiple passes and longer time on site. If camera inspection reveals pipe damage that needs repair, we will advise you before proceeding so you can make an informed decision. We respect your time and will give you an estimated window when booking.

Sewer gas odours (a rotten-egg or sulphur smell distinct from natural gas) in a home most commonly result from:

• Dried P-trap: The U-shaped water trap under every sink, tub, and floor drain evaporates if the fixture is not used regularly. Running water for 30 seconds usually resolves it.
• Cracked or broken drain pipe: Allows sewer gas to escape inside walls or under floors.
• Blocked or damaged vent stack: Every plumbing system vents to the roof. A blocked vent (leaves, ice, bird nests) can force sewer gas back into the home.
• Faulty wax ring under a toilet: The wax seal can fail over time, especially if the toilet is loose or rocks when sat on.
• Rarely used drains: Floor drains in basements or utility rooms often dry out. A regular pour of water — or a cup of mineral oil — maintains the water seal.

Persistent sewer odours that don't resolve with water in the traps warrant a professional inspection. Hydrogen sulphide (the main component of sewer gas) is harmful at high concentrations and can be a symptom of a larger drainage or venting problem.

Signs it's time to replace your water heater:

• Age: Tank water heaters typically last 8–12 years. If yours is over 10 years old, replacement is often more cost-effective than repair.
• Rusty or discoloured water: Rust-coloured hot water indicates internal tank corrosion — the tank cannot be repaired and must be replaced.
• Popping or rumbling sounds: Caused by hardened sediment at the bottom of the tank. A professional flush may extend lifespan in mild cases, but if sound persists, replacement is near.
• Water leaking from the tank body: A corroded or cracked tank cannot be repaired. If the leak is from a fitting or valve, that can often be fixed without replacement.
• Inconsistent hot water or longer recovery time: Indicates reduced heating element efficiency or heavy sediment buildup.
• Rising energy bills: An inefficient water heater works harder and uses more gas or electricity.

Not sure? Our plumbers can perform an inspection and flush and give you an honest assessment of repair vs. replacement based on the unit's age and condition.

Locate your main shut-off valve — typically in the basement, crawlspace, or utility room near the front of the house, close to the water meter. For a ball valve (lever handle): turn the lever 90 degrees clockwise until it is perpendicular to the pipe. For a gate valve (round wheel): turn the wheel clockwise until it stops turning. Then open a low faucet to release remaining water pressure. The detailed step-by-step guide is above in the How-To section.

Yes. Mechora Group provides comprehensive commercial plumbing services across the Greater Toronto Area and Southern Ontario, including:

• Main line and floor drain cleaning for restaurants, retail, and office buildings
• Grease trap service and inspection
• Water heater replacement and maintenance for commercial properties
• Emergency plumbing response for business owners and property managers
• Rough-in plumbing for commercial construction and tenant improvement projects
• Ongoing maintenance contracts for multi-residential and commercial buildings
• Backflow prevention device installation and annual testing

We offer commercial service agreements with priority scheduling. Contact us at info@mechoragroup.com to discuss your property's needs.

Mechora Group serves 60+ cities across Southern Ontario, with a primary focus on the Greater Toronto Area (GTA) and surrounding regions. Cities we serve include:

Toronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, Burlington, Hamilton, Barrie, Kitchener, Waterloo, Cambridge, Guelph, Ajax, Pickering, Whitby, Oshawa, Newmarket, Aurora, Stouffville, Georgetown, Milton, Maple, Woodbridge, Concord, Thornhill, King City, Nobleton, Schomberg, Orangeville, Bradford, Innisfil, Keswick, and many more.

Not sure if we cover your area? Call us at (249) 733-7907 or check the Service Areas page for the full list with city-specific guides.

Booking is simple:

1. Online: Complete the booking form on our Contact page — describe your issue, preferred date, and we'll confirm your appointment by email.
2. Phone: Call (249) 733-7907 during business hours (Monday–Friday 8:00 AM–6:00 PM, Saturday 9:00 AM–4:00 PM).
3. Email: Send your details to info@mechoragroup.com and we'll respond promptly.

For all non-emergency bookings, we provide a written quote before any chargeable work begins. We'll send an appointment confirmation and a reminder before our technician arrives.