Commercial HVAC & Mechanical Contractors in Madison, WI.

HVAC Installation & Replacement

Madison building owners and general contractors looking for commercial HVAC get in-house crews. We install and replace rooftop units (RTUs), chillers, boilers, VRF and split systems, and ventilation for new construction and existing buildings, and our EPA 608 certified technicians handle refrigerant safely and to code.

Replacements often happen while a building stays open, so we sequence the work around daily operations. Our crews also plan each changeover so equipment can be swapped with as little downtime as possible.

As a mechanical contractor that also self-performs electrical work, we deliver Madison projects under the same contract as the electrical scope: one project manager sequences ductwork and conduit, and one team is accountable for both. See our commercial HVAC installation services.

Planned Maintenance

Our HVAC contractors stay with Madison facilities after closeout. Planned maintenance agreements put RTUs, chillers, boilers, VRF systems, and ventilation on a regular service schedule, helping equipment run efficiently, last longer, and show problems before they turn into failures. When something does stop working, HVAC service requests are handled during office hours (Mon–Fri, 7am–4pm); call (262) 781-9210 or see our planned maintenance and service options.

Scheduling HVAC Work Around Madison Seasons

Madison's long heating season and humid summers leave narrow windows for major mechanical work. Boiler replacements are easiest to complete before cold weather sets in, while chiller and rooftop unit changeovers are best finished before cooling demand peaks. Because commercial equipment can carry long lead times, the decision to replace aging equipment often needs to be made a season ahead. Planning early also leaves room for Dane County permitting and inspections, which our team is familiar with, and for the electrical and controls work that goes with every equipment change. Sharing equipment age and service history up front helps an estimator scope the job accurately.

Ventilation & Comfort for Labs and Clinics

Labs, healthcare facilities, and university buildings ask more of a mechanical system than a typical office. Ventilation rates, pressure relationships between rooms, and temperature and humidity control often matter to the work happening inside, not just to occupant comfort. Before starting a replacement or upgrade, facility teams should document which spaces have special ventilation requirements, when those spaces can be taken offline, and what monitoring they rely on today. That information shapes equipment selection, the construction sequence, and the building automation programming that keeps the system performing after startup. Regular maintenance keeps those systems on track, since filters, dampers, and sensors that drift out of calibration can quietly affect conditions long before anyone notices a comfort problem.

Madison Facilities We Serve

We bring commercial HVAC and mechanical work to the facilities that define Madison: university buildings, healthcare facilities, labs, and commercial buildings. These are spaces where heating, cooling, and ventilation have to perform around the work happening inside. Elsewhere in Wisconsin, our electrical crews are phasing work through the occupied Waukesha County Courthouse renovation; see our projects.

Our crews serve Madison and greater Dane County, including Middleton, Fitchburg, Sun Prairie, Verona, Monona, Stoughton, Waunakee, Oregon, McFarland, and DeForest. See everything we do in the Madison area, or explore our full mechanical & HVAC services across Wisconsin.