Heating, Air Conditioning & Electrical Services in Delafield, WI
You can go from an older home near Genesee Street to a large custom home near Nagawicka Road in the same afternoon, and the HVAC setup can be completely different. Delafield has historic properties, luxury subdivisions, waterfront homes, and newer construction, so there is no one standard system we expect to see when we pull up. Pat’s Heating & Air Conditioning serves homeowners throughout Delafield and the 53018 area with heating, cooling, and electrical service built around the house in front of us. Call (262) 315-3095 or contact us online to schedule service.

Your Trusted Source for Home Service Solutions in Lake Country
Pat's Heating & Air Conditioning helps local communities stay comfortable all year round
- 35+ Years of Experience
- Thousands of Homes Serviced in Wisconsin
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- 24/7 Emergency Solutions
Delafield Homes Give Us a Wide Range of Systems to Work On
The housing around Genesee Street and the historic district can date back well over a century, while areas such as The Arbors of Delafield, Wildwood Hills, and newer custom developments reflect a much different era of construction. That difference shows up in the mechanical room. One home may have had several rounds of heating, cooling, and electrical updates, while another was designed from the start for modern forced-air equipment, larger electrical loads, and multiple comfort zones.
Size matters here too. Some Delafield homes stretch well beyond 3,000 square feet, so one system may not serve the entire house. We pay attention to which part of the home is uncomfortable, what equipment serves that area, and what changes have been made over the years before deciding where the problem starts.
Electrical Services in Delafield, WI
Electrical work in Delafield can look very different from one house to the next. A historic property near Genesee Street may have been upgraded several times as new appliances, HVAC systems, lighting, and other loads were added. Newer luxury homes around The Arbors, Wildwood Hills, and other custom developments usually start with more modern panels, but homeowners are also asking those systems to handle EV chargers, generators, additional circuits, and more equipment than ever.
Pat’s provides:
Before adding a large new load, we want to know what the panel can actually support. That may mean looking closely at an older system that has been updated in stages, or checking whether a newer home has enough available capacity for an EV charger or whole-house generator. Delafield homeowners often make substantial upgrades to their properties, so it makes sense to plan the electrical work around what is already there instead of treating each project as a separate add-on.
AC Service for Delafield Summers
Summer around Delafield brings more than heat. Humidity around Lake Nagawicka can make a home feel sticky even when the thermostat is close to where you set it, and larger floor plans can expose weak airflow or uneven cooling pretty quickly. A waterfront property along Nagawicka Road may have different cooling challenges than an older home near downtown or a newer house around Delafield Park Way.
Our air conditioning services include:
Cooling services for your home
In older properties, ductwork is often the deciding factor. If the home was built long before central air was common, there may not be an easy way to run new ducts without opening walls or changing finished spaces. Ductless equipment can give us another option for upstairs rooms, additions, or sections of the house that have always been difficult to cool. In newer Delafield homes, we are more likely to be working with conventional central AC, but we still check airflow, system operation, and how well the equipment handles the full size of the home.
Heating Services in Delafield, WI
Heating calls in Delafield can range from a furnace repair in a newer subdivision to working on a boiler or more complicated setup in an older home near downtown. Large homes around Nagawicka Road, The Arbors, and Wildwood Hills may also have more than one system, which means a cold room or weak zone does not always point to the main furnace. Once Lake Country temperatures drop into the single digits or below zero, those weak spots tend to become much easier to notice.
Pat’s provides:
Heating services for your home
We do not approach a historic home the same way we would a newer custom build. Around Genesee Street, available space, finished walls, and the existing heating layout may limit what can be changed without creating unnecessary disruption. In newer Delafield homes, furnace replacement, heat pumps, and hybrid systems are often more straightforward, but we still want to know whether the issue comes from the equipment, airflow, controls, or the way a larger home is divided into zones.
Why Delafield Homeowners Call Pat’s
Delafield is part of Pat’s regular Lake Country service area, so our technicians are used to seeing the range of homes found throughout 53018. We work on all makes and models, from boilers and furnaces to heat pumps, ductless systems, central air, generators, and electrical equipment. That helps when one home has equipment from several different eras or more than one system serving the property.
We also provide emergency HVAC service when a heating or cooling problem cannot wait. That matters during a January cold snap or a humid stretch in July, when a small issue can turn into a bigger comfort problem quickly. Regular maintenance gives us another chance to catch worn parts, weak performance, or developing issues before the system is under its heaviest seasonal load.
What Pat’s Customers Are Saying
“Adam was excellent! He made a special effort to help me out on a Sunday by stopping at the store and getting 3 new smoke detectors and replacing them for me!!”
Jon K
“Mark is always a great guy to have do your work.
We are so happy when he gets out of the truck.”
Mark H
“Pat’s HVAC service crew showed up on time, equipped with all the materials to complete the Kohler whole house generator installation. Prior to the install date Pat’s HVAC was very proactive in keeping me informed as to their preparation for my install.
The technician explained in detail the difference between my responsibilities as the home owner and the companies responsibilities yearly maintenance program, in addition to supplying a printed reference guide that I can refer back too.
The crew was very respectful of our home while they were installing all that was required for a new whole house generator.”
Jack A
Delafield HVAC & Electrical Questions
Schedule HVAC or Electrical Service in Delafield, WI
Delafield homes can ask very different things from their heating, cooling, and electrical systems. A historic property near Genesee Street may need careful upgrades around an older layout, while a larger home near Nagawicka Road, The Arbors, or Wildwood Hills may have multiple systems, heavier electrical demand, and more square footage to keep comfortable. Pat’s Heating & Air Conditioning can help you sort out what actually needs attention and what makes sense for the house you own.
If you need furnace repair, AC service, a heat pump, electrical panel work, an EV charger, or a whole-house generator in Delafield, call (262) 315-3095 or contact us online to schedule service. We serve homeowners throughout 53018 with heating, air conditioning, and electrical service built around the way Delafield homes are actually put together.