Serving 338K residents
Plumbing Services in Markham
From Unionville's heritage properties to Markham's newest subdivisions, ProFlow understands the diverse plumbing needs of this vibrant city. We provide expert service for residential and light commercial plumbing.
Neighbourhoods We Serve in Markham
Our licensed plumbers know the streets, the homes, and the unique plumbing characteristics of each community. We provide fast, reliable service across every neighbourhood.
Near landmarks including Markham Museum, Pacific Mall, Toogood Pond — postal codes L3P, L3R, L6B and surrounding areas.
Common Plumbing Issues in Markham
Every community has its own plumbing challenges shaped by housing age, soil conditions, and local infrastructure. Here's what we see most often from local homeowners.
Aging Cast Iron Drain Stacks
Heritage homes in Unionville and Markham Village often have 80–120 year old cast iron drain pipes. Internal rust buildup narrows the pipe diameter, causing chronic slow drains and sewage odours. Our camera inspection reveals the pipe's condition, and trenchless relining can extend its life by 50+ years without tearing into walls.
Cross-Connections from DIY Renovations
Markham's active renovation market sometimes leads to improper plumbing connections — like garden hose bibs without backflow preventers or incorrectly vented drain lines. Cross-connections can contaminate your drinking water. We perform cross-connection inspections and install certified backflow prevention devices.
Hard Water Staining and Fixture Damage
Like much of the GTA, Markham receives hard Lake Ontario water. The chalky white deposits on fixtures and glass shower doors are calcium carbonate. Beyond aesthetics, scale buildup inside pipes and water heaters reduces efficiency and shortens equipment life. A water softener paired with annual heater flushing keeps everything running well.
Local Plumbing Tips for Markham Homeowners
Unionville's protected heritage district contains some of Markham's oldest homes, many dating to the mid-1800s. These properties often have original cast iron drain stacks that have corroded from the inside out over 100+ years. If you hear gurgling drains or notice slow drainage throughout the house, the cast iron stack may need lining or replacement. We use trenchless pipe lining technology to restore heritage home plumbing without damaging walls or floors.
How Quickly Can We Get to Markham?
For emergencies, we dispatch immediately — our fully stocked service trucks carry the parts and equipment needed to resolve most issues in a single visit. For scheduled appointments, we offer morning, afternoon, and evening time slots to fit your schedule.
Our Full Range of Services
Drain Cleaning
Professional drain cleaning and clog removal for kitchens, bathrooms, and main sewer lines using advanced hydro jetting technology.
Water Heater Installation & Repair
Expert installation, repair, and maintenance for tank and tankless water heaters from all major brands. Same-day service available across the GTA.
Bathroom Renovation Plumbing
Complete pipe and fixture services for bathroom renovations — from rough-in to final installation. We handle every detail of your project.
Emergency Plumbing
24/7 emergency plumbing response across the GTA. Burst pipes, flooding, gas leaks, and sewer backups — we're there when you need us most.
Tankless Water Heater Installation
Dedicated tankless water heater installation and service. We carry Navien, Rinnai, and Noritz units with professional sizing, venting, and gas line work included.
Sump Pump Installation & Repair
Sump pump installation, repair, and battery backup systems to protect GTA homes from basement flooding caused by rising water tables and heavy rainfall.
Pipe Repair & Replacement
Expert pipe repair and replacement for copper, PEX, and ABS systems. We offer trenchless technology for minimal disruption and same-day burst pipe response.
Why Local Homeowners Choose ProFlow
Choosing the right contractor is about trust. Every ProFlow technician is licensed through the Technical Standards and Safety Authority of Ontario and carries full insurance coverage. We provide written quotes before starting any work, so there are never hidden fees or surprise charges.
Our team brings over 13 years of experience serving the Greater Toronto Area. Whether the job is a simple faucet repair or a complete re-piping project, we treat every home with the same level of care and attention to detail. All work meets or exceeds the Ontario Building Code requirements.
Related Content
Related Services
Drain Cleaning
Professional drain cleaning and clog removal for kitchens, bathrooms, and main sewer lines using advanced hydro jetting technology.
Water Heater Installation & Repair
Expert installation, repair, and maintenance for tank and tankless water heaters from all major brands. Same-day service available across the GTA.
Bathroom Renovation Plumbing
Complete pipe and fixture services for bathroom renovations — from rough-in to final installation. We handle every detail of your project.
Plumbing FAQs for Markham Homeowners
What plumbing services does ProFlow offer in Markham?
How quickly can a plumber arrive in Markham?
Are your plumbers licensed and insured?
Do you provide free estimates?
How do I prevent frozen pipes during Markham winters?
What counts as a plumbing emergency?
How much does a plumber cost in the GTA?
Get a Free Quote in Markham
Request a free, no-obligation estimate today. Same-day appointments available for urgent issues. Call us now or fill out our contact form.