Commercial HVAC Service Areas Across Wisconsin
We cover ten counties in southeastern and south-central Wisconsin with one service company for chillers, boilers, rooftop units and building automation, so a facility manager running buildings in three counties does not need three mechanical contractors to do it.
Trucks run from our office at s46w32298 Highview Road in Waukesha. Commercial and industrial facilities only.
AC outages impacting employee or customer comfort
Boiler breakdowns or loss of hot water for critical processes
Alarming noises, smoke, or potential safety hazards from HVAC units
What We Service Inside the Footprint
The coverage below applies to the full range of equipment we work on, not to a short list that changes by county. Across all ten counties we service:
Water-cooled and air-cooled chillers, including high-tonnage centrifugal and screw machines
Cooling towers, condenser water systems and pumps
Rooftop units, packaged systems and split systems
Steam and hot water boilers, unit heaters and radiant heaters
Make-up air units and ventilation equipment
HVAC controls and building automation systems, including programming and integration
County-by-County Coverage in Southeastern Wisconsin
Waukesha County
Our home county, and the densest concentration of the work we do: school districts and district buildings, office parks along the I-94 corridor, and light manufacturing. Cities and villages served include Waukesha, Brookfield, Pewaukee, New Berlin, Menomonee Falls, Muskego, Sussex, Oconomowoc and Hartland. Our Waukesha commercial HVAC and chiller service page covers the equipment we run here, the local response window and the facility types that call most often.
Milwaukee County
Older downtown and institutional building stock, which means aging central plants, steam systems and controls that have been retrofitted across several generations of technology, alongside the industrial plants on the county's south and north ends. Cities served include Milwaukee, Wauwatosa, West Allis, Greenfield, Oak Creek, Franklin, Glendale and Cudahy. Our
Milwaukee commercial HVAC and chiller service page goes into the central-plant and high-rise work specifically.
Racine County
A manufacturing county, and the calls reflect it: process cooling, heat rejection, compressed-air-adjacent cooling loops and make-up air for plants that run more than one shift. Cities and villages served include Racine, Mount Pleasant, Sturtevant, Burlington, Waterford and Union Grove.
Ozaukee County
Lakefront commercial and retail properties, office buildings and a growing base of medical and professional facilities along the Highway 43 corridor. Cities and villages served include Mequon, Cedarburg, Grafton, Port Washington, Saukville and Thiensville.
Walworth County
Resort, hospitality and retail properties around the lakes, plus school districts and campus facilities that carry a real summer cooling load. Cities and villages served include Lake Geneva, Elkhorn, Delavan, Whitewater, East Troy and Williams Bay.
Jefferson County
Mid-size plants and rural school districts along the corridor between Milwaukee and Madison, where the nearest chiller-capable contractor is often an hour away in either direction. Cities served include Watertown, Fort Atkinson, Jefferson, Lake Mills and Johnson Creek.
Ozaukee County
Dane County
Campus and institutional load around Madison: multi-building sites, central plants, laboratory and research spaces with tight temperature and humidity requirements, and office and government buildings. Cities served include Madison, Middleton, Sun Prairie, Fitchburg, Verona, Waunakee and Stoughton. Our Madison commercial HVAC and chiller service page covers the institutional and campus side of that work and what response looks like on the western edge of the footprint.
Dodge County
Food processing and manufacturing plants where cooling is tied directly to product, plus rural school districts running older boiler plants. Cities and villages served include Beaver Dam, Mayville, Horicon, Juneau and Reeseville.
Columbia County
Distribution centers and light industrial buildings along the I-39 and I-90/94 corridor, along with school and municipal facilities. Cities and villages served include Portage, Columbus, Lodi, Poynette, Pardeeville and Rio.
Rock County
A manufacturing base similar to Racine's, with large plant footprints, process cooling and heat rejection, plus school districts and hospital and clinic facilities. Cities served include Janesville, Beloit, Edgerton, Milton and Evansville.
AC outages impacting employee or customer comfort
Boiler breakdowns or loss of hot water for critical processes
Alarming noises, smoke, or potential safety hazards from HVAC units
How Far We Drive, and How Fast
Waukesha and Milwaukee counties are the short-drive core
Trucks run from Waukesha, so these two counties get the shortest response, including on emergency calls. Most of our scheduled and after-hours volume sits here.
Racine, Ozaukee, Walworth and Jefferson counties are routine coverage
These are regular route counties. Scheduled maintenance, repairs and emergency response all run normally, with drive time stated when the call is booked.
Dane, Rock, Columbia and Dodge counties are covered on a stated schedule
We service these counties, and we tell you what the drive means for arrival time rather than letting you find out. For maintenance agreements and planned work in the outer counties, visits are scheduled so the travel is part of the plan instead of a surprise.
Beyond ten counties, by agreement
For the right project, chiller overhauls and compressor work in particular, we travel outside the footprint. Scope, timing and cost are agreed before a truck rolls. If a job is not one we can actually staff and drive, we say so on the first call.
Emergency calls anywhere in the footprint go to ((414) 899-4641, answered around the clock, and reach a technician rather than an answering service.
AC outages impacting employee or customer comfort
Boiler breakdowns or loss of hot water for critical processes
Alarming noises, smoke, or potential safety hazards from HVAC units
Why a Ten-County Footprint Holds Up
Wide coverage only means something if the same capability shows up in Janesville that shows up in Brookfield. What makes that possible here:
In business since 2008, family owned and based in Waukesha, insured and bonded
Founder Jim Jensen spent more than twenty years in Carrier and York factory service before starting the company
Technicians hold master certifications and factory training from major equipment manufacturers
No brand limitation on chiller work, so the machine in your plant does not determine whether we can service it
One contractor for both the mechanical equipment and the controls that run it, which matters most in an outlying county where a second vendor means a second drive
That last point is the practical reason facility managers consolidate with us. A fault traced from a BAS sequence into a compressor stays with one contractor, and nobody has to coordinate an integrator and a mechanical contractor across a county line.
AC outages impacting employee or customer comfort
Boiler breakdowns or loss of hot water for critical processes
Alarming noises, smoke, or potential safety hazards from HVAC units
Who We Serve Across the Region
The client base looks similar in every county, and it is the reason our technicians see the same equipment classes repeatedly rather than once a year:
Data and server rooms
Multi-facility portfolios with buildings in several counties at once
Mechanical contractors who subcontract chiller work to our technicians
Service Area Questions We Get Asked
What areas does Advanced Chiller Services cover?
We cover ten Wisconsin counties from our office in Waukesha: Waukesha, Milwaukee, Racine, Ozaukee, Walworth, Jefferson, Dane, Dodge, Columbia and Rock. That includes Waukesha, Brookfield, Pewaukee, New Berlin, Menomonee Falls, Muskego, Milwaukee, Racine, Mequon, Lake Geneva, Watertown, Madison, Beaver Dam, Portage and Janesville, among others.
Do you service chillers in Dane County, or only around Milwaukee?
Dane County is part of the regular footprint, including Madison, Middleton, Sun Prairie, Fitchburg and Verona. We work on centrifugal and screw chillers, central plants and building automation systems there, and we state drive time and scheduling up front so a Madison campus knows what response looks like before signing anything.
How far will you travel for a chiller job?
Inside the ten counties, chiller service, repairs and emergency calls are standard work. Outside them we take projects by agreement, most often compressor overhauls, tube cleaning and replacement, and other work where factory-level chiller experience is hard to source locally. Scope, timing and cost are settled before a truck rolls.
Do you work on residential heating and cooling anywhere in your service area?
No. We service commercial and industrial facilities only, in every county we cover. That focus is what keeps our trucks stocked and our technicians current on chillers, cooling towers, boilers, rooftop units and BAS controls.
Find Out What Coverage Looks Like at Your Building
Call (414) 899-4641 to talk through the equipment at your site and what response looks like in your county. The same number takes a text message. If you would rather send details, plans or equipment photos, use our quote form and we will follow up during office hours, Monday through Friday, 8am to 5pm. Emergency calls are answered outside those hours.
