Rooftop units, chillers, boilers, refrigeration and building automation — serviced, maintained and installed for commercial, industrial and healthcare facilities across Skokie and the Chicago area.
From factory floors and warehouses to classrooms and houses of worship, we keep the mechanical systems running for a wide range of facilities.
We specialize in senior living and hospitality facilities.

For more than four decades we've worked on the large, complex equipment that commercial, industrial and healthcare facilities depend on. Every job gets the same careful approach: find the real problem, explain it clearly, and fix it properly.
We are not a sales team. We are service!
We service, maintain and install all of it.
Packaged rooftop heating and cooling units — service, maintenance and new installs.
Chiller service and repair, plus seasonal start-ups and shut-downs.
Commercial heating boilers kept safe, efficient and running all winter.
Domestic hot water boilers and heaters for buildings that can't go without hot water.
Commercial refrigeration systems — service, maintenance and new installs.
Controls and building automation that tie your equipment together and keep it on schedule.
When equipment goes down, our mechanical technicians find the real problem and fix it right. We service & repair equipment of all kinds and sizes, including rooftop units, chillers, heating & domestic boilers, refrigeration, building automation systems and more.
Our team is focused on keeping your operation running while we find a long-term solution to your unit's issue. Whether it's a hard-to-find part or a full replacement, our goal is to keep you in operation. We will always give you your repair vs. replace options and never upsell a product or manufacturer.
We are not a sales team. We are service!
Scheduled seasonal inspections and tune-ups keep your equipment running and catch problems before they become shutdowns.
Our #1 goal is to make sure you stay in operation. Whether it's seasonal maintenance or getting ahead of extreme weather, Precision is there for you.
When we see extreme weather coming, we will be in touch with your facility in advance on how to prepare and what to do in case of an emergency.
When Precision suggests a replacement or new unit, you can feel confident it's needed and that you will be getting the correct unit for the space.
After comparing the repair vs. replacement options and agreeing that new equipment is necessary, we evaluate the size of the space, load calculations, occupancy and the mechanical plans, so the new system is never oversized or undersized for how the building is used today, as well as your long-term goals for the space.
You can be confident that the new equipment will be installed in the best possible mechanical setup.
One mechanical contractor for the whole life of your equipment — from the first start-up to the next replacement.
Experienced mechanical technicians who find the real problem and get your equipment back up and running.
Scheduled seasonal maintenance, tune-ups, hydronic winterization and planned inspections ahead of extreme weather that prevent breakdowns and keep your facility running.
New and replacement equipment, sized, installed and started up right the first time.
Looking for a dependable commercial, industrial or healthcare mechanical contractor — or a technician looking for a great place to work? We'd like to hear from you.