Mechanical & HVAC

Letcar has achieved safety Certificate of Recognition certification, demonstrating to employees and clients that safety, training, and the environment, are all part of Letcar’s key concerns. The company is also registered with ABSA, CWB, ISNetworld, ComplyWorks, CanQual and PICS. Letcar has a first-class reputation for consistently providing outstanding service and reliability.

Temperature Service is a commercial and residential heating, cooling, and refrigeration service provider.

Deliver high-performance HVAC, mechanical, and automation solutions; specialization in design-build, installation, maintenance, repairs, and energy-efficient upgrades for commercial, industrial, and institutional facilities.

At Channico Machine & Millwright Services, we are more than just a service provider — we are a trusted partner in ensuring the efficiency and longevity of your operations. Specializing in machining, millwrighting, pipefitting and welding, our team is committed to delivering top-tier solutions that bridge the gap between construction and maintenance needs.

Delta Building Technologies engineers, installs and services direct digital control (DDC) systems for office, commercial, institutional, and industrial buildings in the metropolitan Chicago area. They represent Delta Controls, Inc., a manufacturer of Web-enabled building automation systems.

Gigawatt is a source of energy-efficiency solutions to decarbonize multifamily and commercial buildings. They offer innovative fuel-switching technologies for heating, cooling, and domestic hot water.

R.F. MacDonald Co., established in 1956, specializes in the sale and service of boilers, pumps, and accessories for commercial and industrial applications, promoting field service capabilities as a key differentiator.