With over five decades of industry experience, Interwest Mechanical Ltd. delivers dependable mechanical solutions tailored to commercial, institutional, and municipal clients across Saskatchewan. From minor upgrades to multi million-dollar developments, our portfolio spans hundreds of successful projects—each backed by a commitment to quality, innovation, and long-term performance.
Mechanical Installations and Renovations

HVAC Systems

Plumbing Services

Water and Wastewater Infrastructure

Building Maintenance & Facility Upgrades

Whether you’re launching a new build, modernizing existing systems, or require 24-hour emergency service, our skilled technicians and project managers are here to help.
Our leadership team brings deep technical knowledge and a forward-thinking approach to every job. We prioritize advanced construction methods that ensure projects are completed efficiently, on time, and within budget—without compromising on craftsmanship.

Commercial and Institutional
Interwest Mechanical Ltd. has completed over 400 commercial and institutional projects over the last 50 years, with mechanical values ranging from $25,000 to $12,000,000. These projects have included new builds, design builds, construction management, and renovations.

Water and Waste Water
Our municipal division specializes in water treatment plants, waste water treatment plants, lift stations and pumping stations. We have completed process and mechanical installations on over 300 projects ranging in value from $10,000 to $15,000,000.

Commercial Service and Building Maintenance
Our service division was established in 2018 and provides building maintenance and service to commercial and institutional clients. We provide HVAC, plumbing, controls and chiller maintenance as well as small projects to improve the building efficiencies of our clients. 24 hour emergency service is available.
Project Delivery

Design Build
Design build is a creative approach that enables Interwest to get a thorough understanding of our client’s needs and interests. Under this process the owner provides the team a program outlining the building concept and each member then submits an all inclusive price for the design and construction of the facility, that meets or exceeds the client’s scope of work.
Interwest Mechanical Ltd. is very experienced at designing and constructing the best mechanical system to ensure our clients’ complete satisfaction.

Construction Management
This methodology is based on a partnering approach throughout the construction process. Construction management involves the owner, contractors, design professionals and other user groups to ensure the project is completed on time and within budget. As mechanical construction managers, Interwest uses its expertise to work as an agent for the owner to ensure the best possible pricing and most cost effective methodology is realized. Construction Management is usually completely “open book” and all costs are fully auditable by the owner.
Interwest Mechanical has the necessary expertise to ensure that any project using this partnering approach will be brought to a successful completion.

Stipulated Sum Contracts
Our team of professionals is very experienced in completing both large and small projects under this format. Our relationships throughout the industry with sub-trades and suppliers gives us an edge in providing competitive pricing in the current marketplace. These alliances will help us deliver a finished project on time, within budget and in compliance with the design specifications.
Interwest Mechanical Ltd. has been providing tenders under this traditional approach for over 50 years.
