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*The Angi rating for Energy Efficiency Auditing companies in Slinger, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Slinger, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on August 27, 2026

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Avatar for Modern Exterior
Modern Exterior
4.5(
31
)
Energy Audit - For Business

Serving Slinger, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Great, low-pressure experience. Very knowledgeable staff that was able to help resolve all my roofing issues. The project was done in a timely manner. All of my expectations for the project were well exceeded. This is the greatest roofing company in southeast Wisconsin. I cannot recommend this company enough!"
New roof installed
Completed Roof and Skylights Project
Ridge vent replacement completed
New vent being installed
New home with new gutter gguards

+600

Response time5 hrs
Response rate99%
195 neighbors recently requested a quote
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Goodman Home Inspections, LLC
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Slinger, WI and surrounding areas

Approved

My name is Darryl Goodman and I am retired from the military after 26 years of successful service. As a home inspector, I bring with me a strong foundation of professionalism, hard work, and a meticulous attention to detail. Leveraging extensive experience in both civilian and military construction, I possess a unique skill set that enhances my ability to assess and ensure the safety and integrity of residential properties.

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Avatar for Green Homeowners United, LLC
Green Homeowners United, LLC
5.0(
3
)
Home Energy Audit

Serving Slinger, WI and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"Tyler, the representative who inspected my home, was extremely professional and friendly. His communication was excellent, and he made very clear and sensible recommendations to improve my home's energy efficiency."
1
Spray foam
2
3
3

+1

Response time9 hrs
Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency. 

A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.

Typically, triple-pane windows made with krypton gas filling are the most energy efficient. A window’s frame, glass, design, and installation all affect its energy efficiency. These windows, in particular, are designed highly effectively in terms of their ability to insulate.

Yes, pros suggest units with high EER ratings for energy savings.

The Slinger, WI homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.

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