Nexklima commercial HVAC technicians on site

Boilers & hydronic systems

Commercial boiler installation, burner tuning and loop balancing that keep buildings safe, efficient and warm.

  • TSSA licensed & insured
  • 24/7 emergency service
  • Serving the GTA since 2001
TSSA licensedFully insured technicians
24/7/365Emergency service, every day
All major brandsLennox, Carrier, Trane & more
Since 200120+ years in the GTA

Whether your building runs a steam plant or high-efficiency condensing boilers, we install, tune and maintain the equipment that keeps it warm — lowering emissions and protecting the building from freeze-ups and failures.

What we do

Boiler installation and replacement

New plants and replacements sized for your building.

  • High-efficiency gas, electric, steam and condensing boilers
  • Low-NOx burner retrofits to meet municipal environmental rules
  • Dual-fuel conversions (natural gas or fuel oil) for backup

Hydronic loop balancing and pumping

Even heat in every zone, with pumps that don’t overwork.

  • Dynamic balancing valves and flow measurement
  • Variable-speed pump retrofits and expansion tank calibration
  • Air separator and deaerator tank maintenance

Safety inspections and combustion tuning

Safe, efficient combustion and clean inspection records.

  • Flue gas analysis and burner modulation tuning
  • Testing gas pressure switches, flame safeguards and relief valves
  • Preparation for annual boiler inspections and certification records

Why condensing boilers pay off

65–75%Typical efficiency of a legacy atmospheric boiler
Up to 98%Efficiency of a modern condensing boiler
20–35%Typical fuel cost reduction after upgrading

Common questions

Without it, some zones stay cold while others overheat, and pumps work harder than they need to.

It captures heat from exhaust gases that a standard boiler wastes, raising efficiency from about 75% to as high as 98%.

Related services

You might also need

Chillers & cooling towers

Chillers & cooling towers

Service, overhauls and tuning for centrifugal, screw and scroll chillers and cooling towers.

Rooftop & make-up air units

Rooftop & make-up air units

RTU replacements, MAU burner tuning, economizers and air quality upgrades.

VRF & heat pump systems

Multi-zone VRF, cold-climate heat pumps and refrigerant leak diagnostics.

Fleet of Nexklima service vans and trucks

Upgrade your building's heating efficiency

Our stocked trucks reach buildings across Vaughan, Toronto and York Region — day or night.

Scroll to Top