Oconomowoc is famous for its beautiful lakes – like Lac La Belle and Fowler Lake – but the area’s weather can swing from humid summers around 82.4°F to icy winters around 10.2°F. Whether your home is near South Cross Street near Downtown Oconomowoc or close to Highway 16, Pat’s Heating & Air Conditioning is here to keep you comfortable in every season.
We’ve spent over 36 years serving Southeastern Wisconsin, and we know exactly how to handle the region’s temperature extremes – from installing brand-new units to providing late-night emergency repairs.
Why Choose Pat’s Heating & Air Conditioning in Oconomowoc?
Oconomowoc is a growing city in Waukesha County, but one thing hasn’t changed: residents want fast, dependable HVAC solutions. That’s precisely what Pat’s delivers:
- Leading Expertise: With decades of hands-on experience, our technicians know the ins and outs of HVAC systems.
- Quick Call-Outs: Whether you’re by Woodlands or down near Briarwood, we arrive promptly to solve your problems.
- 24-Hour Care: We’re ready to tackle emergency issues any time – rain or shine, day or night.
- Customer Satisfaction Guarantee: We prioritize your happiness and always strive for top-notch service.
- Flexible Payment Options: We offer payment plans to make sure our services fit your budget.
Oconomowoc Air Conditioning Installation, Repair & Maintenance
Summer days in Oconomowoc can be especially hot, and temperatures sometimes climb above 82°F! When that happens, a reliable Air Conditioning Installation keeps your home cool and fresh – great for when you want to get back to a nice cool house after being out by Fowler Lake.
Got an existing AC unit? Our repair and maintenance services are available around the clock. We’ll make sure your system runs efficiently so you can relax indoors after a stroll along the Lake Country Trail.
Reliable Ductless HVAC Solutions in Oconomowoc
For homeowners who’d rather skip extensive ductwork, Ductless HVAC Installations deliver zoned heating and cooling exactly where you need it.
Our technicians can install sleek wall-mounted units in any room, so we don’t take up too much floor space and can cut down on your energy usage. Whether you live in a cozy historic house near Main Street or a modern condo near Pabst Farms, ductless systems are a versatile choice.
VRF Systems for Your Oconomowoc Home
Variable Refrigerant Flow (VRF) systems are an increasingly popular choice around Oconomowoc’s suburban neighborhoods. They switch from heating to cooling without skipping a beat – perfect for Wisconsin’s erratic weather patterns!
Pat’s expert team will evaluate your home’s layout and recommend the best VRF solution so you can always enjoy a balanced indoor climate.
Comprehensive Heating Solutions Across Oconomowoc
When winter comes knocking, temperatures can dip below freezing, especially if you’re out by Okauchee Lake or near the outskirts of Waukesha County.
Pat’s is your all-in-one provider for heating services in Oconomowoc, whether you need an urgent repair or a full system overhaul.
24/7 Heating Repairs
If your boiler starts acting up after a day of ice skating on Fowler Lake, don’t stress – our factory-trained pros are just a phone call away. We’ll be there to troubleshoot the issue and make honest recommendations to keep your heating costs manageable.
Boiler & Radiant Heating Installation & Maintenance
A quality boiler or radiant heating system can help you handle those frigid Wisconsin nights. Whether you’re considering an upgrade or just need routine service, we install new units that suit your property and follow up with regular maintenance to keep your system in great shape.
Heat Pump Services
A heat pump offers an all-in-one solution for:
- Heating and Cooling
- Cutting Down on Energy Bills
- Providing Reliable Comfort
Pat’s will help you select and install the right heat pump for your home – perfect for tackling Oconomowoc’s humidity during the summer and warming your space when the snow piles up in winter.
Hybrid Heating Technology
Need a bit more power when the thermometer dives? Our Hybrid Heating Service combines a heat pump with a furnace, guaranteeing a cozy home even on those bitterly cold nights near Rosenow Creek or Lake Drive. It’s an efficient, cost-effective way to keep your family comfortable!
Superior Air Purification Solutions
Indoor air can hide the following pollutants that aggravate allergies:
- Pollen
- Dust
- Other Particulates
Pat’s offers Air Purification Solutions to help clear the air, which is a relief for families living near the city’s bustling center or by the scenic waterfront. We install top-grade filters, as well as humidifiers and dehumidifiers, to help maintain optimum moisture levels all year long.
State-of-the-Art Temperature Control in Oconomowoc
Take charge of your home’s climate with our modern smart thermostats. You’ll be able to monitor and adjust temperatures from anywhere – especially handy if you’ve just spent the day shopping around downtown Oconomowoc and want to return to a perfectly set home environment. Plus, zoning control gives you the power to regulate different rooms individually, saving you energy and costs.
Commercial Services for Local Oconomowoc Businesses
Pat’s also supports the many enterprises around Oconomowoc – whether you’re located near Lake Drive or around Wisconsin Avenue. Our Commercial HVAC Services cover everything from new installations to maintenance on existing systems, helping keep your workspace productive and comfortable for employees and customers alike.
Trusted Electrical Services in Oconomowoc
HVAC isn’t our only specialty. We provide a range of Electrical Services for homes and businesses across Oconomowoc:
- Circuit Breaker Installation
- Electrical Panel Upgrades
- EV Chargers
- Fans & Fixtures
- Smoke and Carbon Monoxide Detectors
- Generator Services
Contact Pat’s Team Today!
Got a furnace emergency near Lake Drive? Need an AC tune-up by the Oconomowoc River? Pat’s Heating & Air Conditioning is standing by. Call 262-208-5829 or fill out our online form, and we’ll get back to you promptly. Experience the same expert service that thousands of satisfied customers in Oconomowoc already trust!
We offer the following services (and more!) in Oconomowoc, WI:
Recent Jobs and Reviews in Oconomowoc, WI
Job Locations and Reviews
Completed comprehensive air conditioning tune-up and preventative maintenance service for new customer. Performed system diagnostics using manifold gauge set to verify refrigerant pressures and charge levels, inspected indoor furnace unit and associated components, and confirmed all systems are operating within manufacturer specifications. Unit has been prepared and is ready for the upcoming cooling season.
Isolated and drained in-floor hydronic heating loops serving the master bathroom to facilitate bathroom remodeling work. Verified proper zone isolation at the multi-zone control panel to prevent system disruption to other areas during construction. Customer advised to monitor for any water pressure irregularities following loop restoration.
Completed annual preventative maintenance on residential air conditioning system under prepaid service plan. Performed comprehensive clean and check of outdoor condensing unit, inspected all accessible components, verified proper operation, and installed 16x25x4 air filter. System operating within normal parameters with no deficiencies noted.
Completed annual AC tune-up on warranty replacement unit from previous year. Performed comprehensive maintenance inspection, verified refrigerant pressures using manifold gauges, and confirmed system operating in excellent condition. Unit remains on recommended maintenance schedule per CCC Quality Plan coverage.
Completed annual air conditioning tune-up and preventive maintenance inspection on outdoor condenser unit. Replaced dirty 20x25x4 air filter and performed comprehensive system diagnostics including temperature and pressure readings. All components operating within normal parameters; unit in good working condition with no issues identified at time of service.
Completed annual AC maintenance and tuneup under renewed CCC Quality Plan agreement. Performed comprehensive system inspection, pressure testing with manifold gauges, and verified refrigerant levels. Unit operating at optimal performance with all components in good health and ready for cooling season.
Completed full air conditioning system and evaporator coil replacement at residential property. Removed existing outdoor condensing unit and indoor evaporator coil, installing new equipment with 15-foot refrigerant line set and "B" width coil configuration. Relocated outdoor unit to right side of property on new concrete pad with rock base for improved placement and accessibility. Replaced electrical disconnect with new Cutler Hammer panel, installing 30-amp circuit for air conditioning unit and verifying 15-amp furnace circuit. Navigated existing humidifier installation during indoor coil replacement, working around basement mechanical room constraints including water heater, water softener, and pressure tank. Routed copper refrigerant lines around existing brick chimney structure with proper insulation. Connected all electrical conduits and refrigerant lines, performed vacuum and refrigerant charge procedures, and tested system operation to verify proper cooling performance and elect
Responded to service call for water accumulation on top of furnace unit below evaporator coil. Upon inspection, identified active water leak condition requiring immediate system shutdown to prevent further damage to equipment and surrounding area. Advised customer to power down system and verified electrical disconnects at breaker panel. Documented existing HVAC installation including furnace/air handler unit, copper refrigerant lines, gas piping, PVC condensate drainage system, and ductwork configuration for follow-up repair assessment.
Completed full HVAC system replacement for 2200 square foot residence, including new furnace, air conditioning unit, and evaporator coil. Removed existing aged equipment and installed new units in basement mechanical room. Reused existing return air drop and media cabinet to maintain air filtration system. Retained 2" solid core PVC condensate drain line from previous installation. Replaced 25-foot refrigerant line set connecting outdoor condenser to indoor coil. Removed old equipment mounting brackets from exterior pad location, installed stone base and new equipment pad for proper condenser support and drainage. Installed dedicated electrical circuits with Square D QO breakers: 15-amp circuit for furnace and 30-amp circuit for air conditioning condenser unit per manufacturer specifications and local electrical code requirements. Connected all ductwork to new furnace unit, ensuring proper airflow distribution throughout home. Verified system levelness using precision measuring tools d
# HVAC Service Call - No Cooling Condition
Responded to a no cooling complaint on a residential air conditioning system over 10 years old. Upon arrival, performed diagnostic evaluation of the outdoor condensing unit located in the side yard. Inspected the condenser unit which showed signs of age and lack of recent maintenance, with visible dust accumulation and spider webs present in the electrical compartment.
Accessed the electrical control panel and identified a failed dual-run capacitor rated at 40/5µF, 440VAC. The capacitor showed signs of deterioration and was determined to be the root cause of the no cooling condition, preventing the compressor and condenser fan motor from operating properly.
Removed the defective capacitor and replaced it with a new dual-run capacitor meeting the manufacturer's specifications. Reconnected all electrical wiring to proper terminals, ensuring secure connections on both the compressor (HERM) and fan motor (FAN) circuits. Verified proper wire ro
Completed full HVAC system installation including new Lennox air conditioning condenser unit and evaporator coil on flat rubber roof. Utilized crane service for rooftop equipment placement, installed protective rubber underlayment beneath equipment pad to preserve existing rubber roofing membrane, and replaced refrigerant line set with proper insulation while maintaining existing roof flashing integrity. System tested and operational upon completion.
Completed annual air conditioning maintenance tune-up under prepaid quality plan. Upon inspection, identified failed capacitor affecting system performance. Replaced defective capacitor with new unit, restoring proper operation. System tested and confirmed running within manufacturer specifications.
Completed annual AC tune-up under preventative maintenance agreement, including replacement of 16x25x4 air filter. Performed comprehensive system inspection of Lennox condensing unit, verified proper operation of all components, and pressure-washed exterior coil and cabinet. Unit operating within normal parameters with no deficiencies noted.
Completed installation of new air conditioning system and evaporator coil to replace existing failed equipment. Removed old AC unit and coil, installed new Carrier HVAC system with matching evaporator coil in basement utility area, connected all necessary ductwork including plenum sections and flexible ducts, verified proper refrigerant charge and airflow, tested system operation for cooling functionality, and confirmed all safety labels and manufacturer specifications were properly displayed on equipment.
Responded to no cooling call on aging outdoor condensing unit. Upon arrival, performed diagnostic evaluation and identified failed capacitor as root cause of system failure. Removed defective capacitor and installed replacement component. Verified proper electrical connections and tested unit operation. System restored to full functionality with normal cooling capacity. Inspected condenser coil fins and confirmed adequate airflow through heat exchanger. Unit operating within normal parameters at time of departure.
Completed annual AC maintenance and renewal inspection on outdoor condensing unit. Performed thorough cleaning and operational check of system with all components functioning properly and no issues identified.
Performed complete air conditioning tune-up on outdoor condenser unit. Conducted thorough clean and check of system components including condenser coils, electrical connections, and refrigerant levels. Unit operating within normal parameters with no deficiencies noted.
# HVAC Service Report
Responded to service call for inadequate cooling performance and extended cool-down times on Rheem model RCC42C2C air conditioning system (S/N 0412500356). Upon inspection, confirmed system was not producing adequate cooling. Diagnostic testing revealed low refrigerant charge with visible ice formation on refrigerant lines and evaporator components. Unit specifications indicate 110V/60Hz/1-phase outdoor section with factory charge. Exterior condensing unit showed signs of age with accumulated dirt and debris on coil fins and housing. Documented system condition with photographs of unit nameplate and exterior installation. Due to severity of refrigerant loss and freezing condition, recommended system evaluation for potential replacement. Forwarded customer information to sales team for complimentary replacement quote.
Responded to no cooling complaint on 10+ year old Amana air conditioning system. Customer had attempted to restart unit without success. Upon inspection, diagnosed failed capacitor preventing compressor operation. Replaced defective capacitor under parts warranty, restoring full cooling function to system.
Responded to no cooling complaint with outdoor unit not operational. Diagnosed grounded compressor requiring replacement. Documented compressor part number APG029KAB and filter drier P502-C0835 for ordering and scheduled return visit for installation.
