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COVID-19 Update


We do hope you are staying safe and maintaining social distancing.

We are open for emergencies, so please call us, and we will work with you to ensure we maintain high levels of safety and ensure we are able to provide you with the service you need during these troubled times.

Your Partner for Boiler Installation and Repairs in Woodbridge

When you call Nelson Welding Ltd for a boiler installation and repairs in Woodbridge, you’re not only getting some of the most qualified installers and welders in the industry but also a team of industrial and commercial heating specialists. Through the Greater Toronto Area, Nelson Welding works with property managers and owners, in addition to heating and mechanical contractors and subcontractors. 

Give Your Boiler an Annual Checkup

Following service or installation, we also recommend an annual service contract to protect your investment.

24/7 Emergency Boiler Repairs

Nelson Welding’s emergency boiler repairs are available 24 hours a day by calling our repair hotline at 416-742-9180.

Service and Repairs for GTA Boilers

The team at Nelson Welding is always on-hand to provide boiler installations and repairs, including:


  • Radiator valve replacements

  • Tube replacements and expanding

  • Tube sheet and shell repairs

  • Fire chambers and doors

  • Refractory work

  • Pump services

  • Controls

  • Piping

Boiler Set-Ups and Installations

Nelson Welding Ltd sells and installs some of the most dependable and efficient boiler brands, such as Cleaver Brooks® and Volcano Boilers. We can also handle all your piping needs, whether gas, steam, water, threaded, or welded.

For boiler service or installation, contact Nelson Welding — the team Toronto has trusted for over 60 years.


See why Nelson Welding is right for your welding project.

Contact Information

Nelson Welding Ltd

9-51 Roysun Rd

Woodbridge, ON L4L 8P9



24-Hour Emergency Welding Line


Fax - 416-742-6897



Business Hours

Monday – Friday: 8:00 AM - 4:00 PM

Saturday and Sunday: Closed 

24-Hour Emergency Service

Service Area

Serving the Greater Toronto Area


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