WellFab Services Ltd. is a GTA-based mechanical contractor known for precise execution and responsive delivery. Led by a principal with over 20 years of field experience, we provide true end-to-end service—design and engineering, installation, testing, and commissioning—all under one roof. Our team operates to TSSA-certified procedures with rigorous QA/QC standards.
We build and modify complex piping systems and deliver expert welding and fabrication. For live systems, our hot tapping and line stopping capabilities add new connections with minimal disruption, keeping facilities online while work proceeds. Our portfolio includes energy transfer stations, district energy networks, biogas facilities, CHP plants, and mechanical rooms.
WellFab is also proud to collaborate with a network of trusted affiliates and partners, allowing us to extend our capabilities, share expertise, and deliver specialized solutions efficiently across multiple sectors.
Whether you’re planning a retrofit, a critical tie-in, or a full new install, we prioritize safety, uptime, and verifiable documentation for a clean handover. Share your drawings for a rapid review or schedule a site walk-through — we’ll chart the safest, most efficient route to your connection.
We are Wellfab
We are Wellfab
We are Wellfab
We are Wellfab
WellFab Services Ltd. is a GTA-based mechanical contractor known for precise execution and responsive delivery. Led by a principal with over 20 years of field experience, we provide true end-to-end service—design and engineering, installation, testing, and commissioning—all under one roof. Our team operates to TSSA-certified procedures with rigorous QA/QC standards.
We build and modify complex piping systems and deliver expert welding and fabrication. For live systems, our hot tapping and line stopping capabilities add new connections with minimal disruption, keeping facilities online while work proceeds. Our portfolio includes energy transfer stations, district energy networks, biogas facilities, CHP plants, and mechanical rooms.
WellFab is also proud to collaborate with a network of trusted affiliates and partners, allowing us to extend our capabilities, share expertise, and deliver specialized solutions efficiently across multiple sectors.
Whether you’re planning a retrofit, a critical tie-in, or a full new install, we prioritize safety, uptime, and verifiable documentation for a clean handover. Share your drawings for a rapid review or schedule a site walk-through — we’ll chart the safest, most efficient route to your connection.
At WellFab, our Mechanical ICI team (Industrial, Commercial, and Institutional) is the engine behind every successful project. The group brings together licensed engineers, certified technicians, skilled trades, and experienced project managers—all aligned around one goal: delivering exceptional results.
We work across industrial, commercial, and institutional facilities, handling the full spectrum of building systems: HVAC, plumbing, and complex piping, as well as boilers, chillers, and pumps.
We also design and implement energy-efficient solutions that improve performance and reduce operating costs.Every project is planned and executed with a disciplined focus on quality, safety, and innovation. From upfront coordination and clear documentation to rigorous QA/QC, we aim for reliable performance, minimal disruption, and long-term value for our clients.
Our Team
At WellFab, our Mechanical ICI team (Industrial, Commercial, and Institutional) is the engine behind every successful project. The group brings together licensed engineers, certified technicians, skilled trades, and experienced project managers—all aligned around one goal: delivering exceptional results.
We work across industrial, commercial, and institutional facilities, handling the full spectrum of building systems: HVAC, plumbing, and complex piping, as well as boilers, chillers, and pumps.
We also design and implement energy-efficient solutions that improve performance and reduce operating costs.Every project is planned and executed with a disciplined focus on quality, safety, and innovation. From upfront coordination and clear documentation to rigorous QA/QC, we aim for reliable performance, minimal disruption, and long-term value for our clients.
At WellFab, our Mechanical ICI team (Industrial, Commercial, and Institutional) is the engine behind every successful project. The group brings together licensed engineers, certified technicians, skilled trades, and experienced project managers—all aligned around one goal: delivering exceptional results.
We work across industrial, commercial, and institutional facilities, handling the full spectrum of building systems: HVAC, plumbing, and complex piping, as well as boilers, chillers, and pumps.
We also design and implement energy-efficient solutions that improve performance and reduce operating costs. Every project is planned and executed with a disciplined focus on quality, safety, and innovation. From upfront coordination and clear documentation to rigorous QA/QC, we aim for reliable performance, minimal disruption, and long-term value for our clients.
Our Services
Wellfab offers reliable mechanical and piping services, including fabrication, welding, hot tapping, and advanced leak detection. We combine experience, technology, and safety to keep your systems running without interruption.
Wellfab delivers complete mechanical construction solutions for industrial, commercial, and institutional facilities. Our team handles everything from HVAC and piping systems to boilers, chillers, and pumps — ensuring each project meets the highest standards of safety, efficiency, and performance.
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Our hot tapping services allow new connections to be made on live pressurized pipelines — without system shutdowns. From ½ inch to 40 inches and up to 1,100 psi, Wellfab ensures safe, precise, and efficient tie-ins that minimize downtime and maximize productivity.
Line Stopping
Wellfab’s line stopping solutions provide temporary isolation of pressurized systems, allowing repairs or modifications without full shutdown. This service maintains continuous operation while ensuring safety and control during critical maintenance or upgrades.
Wellfab specializes in advanced leak detection using pressure testing, tracer gas, electroacoustic tools, drone thermal imaging, and correlation technology. Our multi-approach verification accurately locates leaks, helping clients save time, cost, and unnecessary disruption.
Our pipe freezing services offer a cost-effective and non-intrusive way to isolate sections of piping for repairs or modifications. Using controlled cryogenic methods, we create a solid freeze plug that temporarily seals the line — ideal for water, glycol, and other liquid systems.
We perform precise thermowell insertions on live systems, allowing safe installation of temperature sensors without depressurizing or draining the line. This ensures continuous monitoring and data collection while keeping your process fully operational.
Our in-house engineering and fabrication team designs and builds custom mechanical components, supports, and piping assemblies in carbon steel, stainless steel, and specialty alloys. Using advanced modeling and precision welding, we deliver reliable solutions built for performance and longevity.
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Our Projects, Across North America
Discover our footprint: explore where we’ve delivered exceptional projects and the range of services we provide across every location
Our Affiliate
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