HVAC Contractors in Waukesha, WI
Heating and Cooling Services
Waukesha includes a wide range of homes, from historic properties with older infrastructure to newer developments with updated systems. That variety means heating and cooling needs can differ significantly from one home to the next. As HVAC contractors serving Waukesha, we provide complete heating and cooling services, including air conditioning service, furnace repair, and full system replacement.

24/7 HVAC Service in Waukesha, WI
We provide 24/7 HVAC service in Waukesha for urgent system failures, including emergency AC repair during summer heat and emergency furnace repair during winter conditions.
Same day service is available when scheduling allows. Our technicians focus on diagnosing the underlying issue to ensure repairs are completed correctly and prevent repeat problems.
HVAC Services in Waukesha, WI
Air Conditioning Services
Waukesha summers bring consistent heat and humidity, which can place strain on air conditioning systems. If your AC is not cooling effectively, running continuously, or producing uneven airflow, it may require repair or replacement.
We provide full air conditioning service, including system diagnostics, repair, installation, and replacement. Newer systems offer improved efficiency and better humidity control. Routine maintenance helps keep systems operating reliably.
Heating Services
Cold winters in Waukesha require dependable heating systems that can maintain consistent indoor temperatures. We provide furnace repair, heating service, and system replacement for residential homes.
We also work on boilers and heat pumps, offering repair, installation, and maintenance. Boilers provide steady heating for certain home types, while heat pumps offer an efficient alternative for year-round comfort.
Air Quality & Ventilation Services
Indoor air quality is influenced by airflow, system condition, and home construction. We provide air duct cleaning to remove buildup and improve airflow, along with dryer vent cleaning services to improve efficiency and safety.
Air purification solutions help reduce allergens and improve overall indoor air quality. Proper ventilation adjustments can also improve comfort and system performance.
HVAC Maintenance Plans & Preventative Service
Routine maintenance helps prevent unexpected breakdowns and improves system efficiency. Our maintenance plans include seasonal service for both heating and cooling systems.
Regular inspections and tune-ups extend equipment lifespan and help maintain consistent performance.
Financing Options for HVAC Systems
We offer financing options for HVAC system upgrades and replacements, helping homeowners in Waukesha manage costs while improving comfort and efficiency.
Permits & HVAC Regulations in Waukesha, WI
In the City of Waukesha, HVAC permits are required for installing, replacing, or altering heating, cooling, and ventilation systems. This includes furnaces, boilers, and air conditioning units, with requirements varying depending on the type of project.
Permits help ensure installations meet local building codes and safety standards.
For permitting questions or inspections, contact the Community Development Department:
- 201 Delafield St
- Waukesha, WI 53188
- (262) 524-3530
Signs You Need HVAC Service in Waukesha, WI
With a mix of older homes and newer construction, HVAC systems in Waukesha often deal with inconsistent airflow, aging components, and seasonal strain. When performance starts to drop or comfort becomes uneven, it’s usually a sign that professional service is needed.

Common Furnace and Heating Problems
- Furnace struggling to keep older homes warm: Often tied to insulation gaps or outdated equipment.
- Boiler system not circulating heat properly: Pump or zone valve issues can limit performance.
- Heat exchanger causing unusual smells: Can indicate overheating or internal damage.
- Radiators staying cold while system runs: Air trapped in lines or pressure imbalance.
- High-efficiency furnace showing error codes: Sensor or venting problems.
- Heating system making whistling sounds: Airflow restriction or duct leakage.
Air Conditioning and Cooling Concerns
- AC system not reaching set temperature: Could be due to aging equipment or refrigerant loss.
- Uneven cooling in multi-room homes: Duct design or airflow balancing issue.
- Central air unit turning off too quickly: Short cycling from thermostat or sizing mismatch.
- Older AC units running inefficiently: Reduced performance and higher energy use.
- Evaporator coil freezing during summer: Airflow or refrigerant-related issue.
- Ductless system not cooling additions properly: Installation or sizing concern.
- AC unit producing musty odors: Moisture buildup or mold inside system.
Overall HVAC System Issues
- Airflow significantly reduced in certain vents: Blocked ducts or failing blower motor.
- Indoor air feels stale or heavy: Poor ventilation or lack of air exchange.
- Programmable thermostat not following schedule: Software or wiring issue.
- Frequent need to reset system: Electrical or control board problems.
- Whole-home humidifier not functioning: Water supply or control issue.
- Ventilation system causing drafts: Imbalance in air exchange setup.
- Energy bills rising without explanation: System losing efficiency over time.
Choosing the Right HVAC System for Homes in Waukesha, WI
Selecting the right HVAC system in Waukesha depends on home size, layout, and existing infrastructure. Homes in the area average around 1,875 square feet, which typically requires mid-sized systems, though older homes may require additional airflow considerations.
An improperly sized system can lead to inconsistent temperatures and higher energy costs. We evaluate each home to recommend systems that provide reliable performance and long-term efficiency.
| Climate Factor | Average in Waukesha, WI | HVAC Impact |
|---|---|---|
| Home Size | ~1,875 sq ft | Mid-sized systems typically required |
| Summer High Temps | Mid 80s to low 90s °F | Cooling systems must handle heat and humidity |
| Humidity Levels | Moderate to high | Impacts comfort and system demand |
| Winter Low Temps | Frequently below freezing | Heating systems must perform reliably |
| Seasonal Swings | Wide variation | Systems must handle year-round demand |
| Housing Mix | Older homes and newer builds | Airflow and insulation needs vary |
| Energy Usage Trends | Moderate | Efficiency helps reduce long-term costs |
Choosing between a furnace and AC system or a heat pump depends on your home’s layout and long-term goals. Proper sizing and installation ensure consistent comfort throughout the year.
Schedule HVAC Service in Waukesha, WI
If your system needs repair, maintenance, or replacement, we provide dependable service throughout Waukesha.
Call (262) 500-3410 to schedule HVAC service or request an estimate.
Why Choose Mr. Holland's
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Rooted in Wisconsin
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All-in-One Service
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Guaranteed Comfort
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Veteran Strong
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Trusted by Thousands
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“Could not ask for a better business to work with. From replacing my sewer stack to inevitably having to replace my main sewer line, they gave 100%. Took their time to explain each step and did the job correctly. And to make them even better, they came out ”Jessica S.
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“Mike did a great job. He was very knowledgeable, helpful, and friendly. He gave me an honest assessment of my furnace and different options for maintenance and repair.”Jim S.
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“Ours was a non-emergency, so an appointment was made for the following morning. Our technician was Andy, quick & thorough diagnosis and was able to remove our old water heater, install a new one, and fix some piping issues all within 4-5 hours. Thank y”Scott W.
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“Kyle came out yesterday to fix our air conditioner, and he was a godsend! It’s blistering hot and humid today. Turned out to be a fried wire in the control panel. We’re cool & so comfortable today, and the bill was exceptionally reasonable.”Melanie Z.
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“We are very pleased with the professional outcome Mr. Holland’s Home Service. We received a text and phone call 30 mins prior to staff arriving to our home. The job (exchanging our gas dryer to an electric current) and outcome were explained in great”Victoria S.
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“The technician who came to service my home was Shannon, and he was absolutely the best. I wish I could give him a million stars. He knew exactly what to do with minimum effort. If I have any issues again in the future, I'm definitely going to request him.”John B.
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“We have found Mr Holland's to be a quality home services company to work with and have been very happy with our experience with them.”Bruce B.
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“Mr Hollands came through in a pinch, and we couldn’t be more pleased with the prompt scheduling and service by our technician, Paul Johnson. This is our first experience with Mr Hollands, and they’ve definitely earned our business in the future”Jason C.
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“The installers were extremely qualified, informative on each step in the process of installing the generator, and walked me through the steps in monitoring and caring for the unit. Would highly recommend them to install a generator.”Richard Z.