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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon175
    Verified electrical services reviews

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Avatar for Cardinal Heating & Air Conditioning

Cardinal Heating & Air Conditioning

4.90(
128
)
Approved Pro

Cardinal Heating & Air Conditioning

4.90(
128
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
42 years of experience

Since 1984, Cardinal Heating, Cooling, Plumbing & Electric has provided the Sun Prairie, WI and the surrounding area with exceptional Heating, Air Conditioning, Electrical and Plumbing services. We offer professional technicians, same-day installations and 24-hour emergency service. We believe we are the right choice for any of your HVAC, Plumbing, or Electrical needs. Call today to schedule your next appointment!

"Had an old fixture above kitchen sink go kaput (fluorescent starter disintegrated), so Cardinal came out and offered LED alternatives (two provided, brought on-hand from supply warehouse). Also fixed a switched outlet that had shorted out. Great work done, nice alternatives for the LED light, and switched outlet was wired to be always-on for one socket and switched for the other -- better than it was before at no additional cost. Later I called to ask the exact serial and model number of the LED light because the papers left did not state it. Not only did I get an email a couple hours later with the model/serial, the tech included the detailed documentation for the fixture so if anything goes wrong I can likely fix it myself next time. The tech who did the work also applied a 10% off discount card for me with no extra hassle, saving me close to $100 on the work."

Joe K on November 2025

Since 1984, Cardinal Heating, Cooling, Plumbing & Electric has provided the Sun Prairie, WI and the surrounding area with exceptional Heating, Air Conditioning, Electrical and Plumbing services. We offer professional technicians, same-day installations and 24-hour emergency service. We believe we are the right choice for any of your HVAC, Plumbing, or Electrical needs. Call today to schedule your next appointment!

"Had an old fixture above kitchen sink go kaput (fluorescent starter disintegrated), so Cardinal came out and offered LED alternatives (two provided, brought on-hand from supply warehouse). Also fixed a switched outlet that had shorted out. Great work done, nice alternatives for the LED light, and switched outlet was wired to be always-on for one socket and switched for the other -- better than it was before at no additional cost. Later I called to ask the exact serial and model number of the LED light because the papers left did not state it. Not only did I get an email a couple hours later with the model/serial, the tech included the detailed documentation for the fixture so if anything goes wrong I can likely fix it myself next time. The tech who did the work also applied a 10% off discount card for me with no extra hassle, saving me close to $100 on the work."

Joe K on November 2025


Excel Electric, Inc.

4.86(
39
)
Approved Pro

Excel Electric, Inc.

4.86(
39
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
32 years of experience

Since 1994, we have given the best quality service for your electrical needs. We go above and beyond for all of our clients. You will never be disappointed when you work with Excel Electric, Inc. Ask us about our daily service. We look forward to working with you.

"It was great. They were quick and precise and got the job done right away"

Judy Y on June 2021

Since 1994, we have given the best quality service for your electrical needs. We go above and beyond for all of our clients. You will never be disappointed when you work with Excel Electric, Inc. Ask us about our daily service. We look forward to working with you.

"It was great. They were quick and precise and got the job done right away"

Judy Y on June 2021


Excel Electric

4.94(
16
)
Approved Pro

Excel Electric

4.94(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
Free onsite estimate

Since 1994, we have given the best quality service for your electrical needs. We go above and beyond for all of our clients. You will never be disappointed when you work with Excel Electric, Inc. Ask us about our daily service. We look forward to working with you.

"Fast. They were excellent."

Margaret B on March 2025

Since 1994, we have given the best quality service for your electrical needs. We go above and beyond for all of our clients. You will never be disappointed when you work with Excel Electric, Inc. Ask us about our daily service. We look forward to working with you.

"Fast. They were excellent."

Margaret B on March 2025


Avatar for All Comfort Services

All Comfort Services

5.00(
6
)
Approved Pro

All Comfort Services

5.00(
6
)
Approved Pro
53 years of experience
Free onsite estimate

All Comfort Services is a 50+ year old employee-owned heating, cooling, plumbing, and electrical contractor serving residential and commercial customers in Dane and parts of Rock, Columbia, and Jefferson counties. We may need to confirm a specific zip code that we service. Our team understands that when you call a local electrician, you need a trained, certified, and insured professional who will arrive on time and be ready to provide the solutions you need. Our repair dispatch fee is $149.

"They explained me that the service was not needed, I'm very impressed and thankful for explaining me the situation."

Candace B on October 2025

All Comfort Services is a 50+ year old employee-owned heating, cooling, plumbing, and electrical contractor serving residential and commercial customers in Dane and parts of Rock, Columbia, and Jefferson counties. We may need to confirm a specific zip code that we service. Our team understands that when you call a local electrician, you need a trained, certified, and insured professional who will arrive on time and be ready to provide the solutions you need. Our repair dispatch fee is $149.

"They explained me that the service was not needed, I'm very impressed and thankful for explaining me the situation."

Candace B on October 2025


Avatar for Cardinal Heating & Air Conditioning

Cardinal Heating & Air Conditioning

4.75(
4
)
Approved Pro

Cardinal Heating & Air Conditioning

4.75(
4
)
Approved Pro
Customers say: Quick response
42 years of experience
Free onsite estimate

Cardinal Heating & Air Conditioning, Inc is a full service plumbing, and heating and cooling company for both residential and commercial work. We serve the Sun Prairie and surrounding areas. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer?s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call today for a free estimate.

"The were quick and professional - I would recommend them"

Anthony R on November 2025

Cardinal Heating & Air Conditioning, Inc is a full service plumbing, and heating and cooling company for both residential and commercial work. We serve the Sun Prairie and surrounding areas. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer?s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call today for a free estimate.

"The were quick and professional - I would recommend them"

Anthony R on November 2025


Avatar for NextPhase Technology Solutions LLC

NextPhase Technology Solutions LLC

5.00(
3
)
Approved Pro

NextPhase Technology Solutions LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

NextPhase provides network and technology support to business. We are available to assist as the first point of contact for any technology support needs, and are also able to assist IT staff with specific projects or needs. We enjoy a challenge, and often are able to quickly resolve long standing IT and technology issues when others have failed. As a full service technology provider, we are able to assist with network infrastructure, new PC and server equipment, telephone and voice equipment, and network security. We work with a wide range of technology solutions and are experts working with Windows and Linux.

"Jake is the best at what he does and is very thoughtful. I had a complicated situation and he visited the site and found an ideal solution for wifi connectivity. He created a fully built solution to my issue and examined all the points to consider."

Isaiah K on July 2022

NextPhase provides network and technology support to business. We are available to assist as the first point of contact for any technology support needs, and are also able to assist IT staff with specific projects or needs. We enjoy a challenge, and often are able to quickly resolve long standing IT and technology issues when others have failed. As a full service technology provider, we are able to assist with network infrastructure, new PC and server equipment, telephone and voice equipment, and network security. We work with a wide range of technology solutions and are experts working with Windows and Linux.

"Jake is the best at what he does and is very thoughtful. I had a complicated situation and he visited the site and found an ideal solution for wifi connectivity. He created a fully built solution to my issue and examined all the points to consider."

Isaiah K on July 2022


Avatar for The Electrician Inc

The Electrician Inc

4.94(
600
)

The Electrician Inc

4.94(
600
)
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Providing electrical contracting, service, maintenance and safety solutions for our customers since 2004. Our top priority is to provide excellent customer service, meticulous craftsmanship, and a safe workplace for our team.

"Install went smoothly"

Quinn A on July 2024

Providing electrical contracting, service, maintenance and safety solutions for our customers since 2004. Our top priority is to provide excellent customer service, meticulous craftsmanship, and a safe workplace for our team.

"Install went smoothly"

Quinn A on July 2024


Avatar for Thomas Lulinski Home Finishing Inc

Thomas Lulinski Home Finishing Inc

4.97(
122
)

Thomas Lulinski Home Finishing Inc

4.97(
122
)
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

Our direct phone number is 608-873-9266. Our painting company has thrived on repeat business and customer referrals since 1991. We earn the trust of our clients and build relationships that continue for years. We have countless references available, and are properly licensed and insured. We are a full service painting company that also offers limited finish carpentry services. We offer our interior & exterior painting services throughout Madison, Wi. and surrounding Southern Wisconsin communities. We are proudly located in historic Stoughton, Wi. LIC #1010817. 5% Labor Discount for Angies List Members. Lead-Safe Certified Renovator.

"Tom and his team were wonderful. Tom helped me select a color, the house was spotless and put back together. my boys were in and out of the house while they were here and they were super kind to them as well. thanks Tom and team!!!"

Jenny M on November 2021

Our direct phone number is 608-873-9266. Our painting company has thrived on repeat business and customer referrals since 1991. We earn the trust of our clients and build relationships that continue for years. We have countless references available, and are properly licensed and insured. We are a full service painting company that also offers limited finish carpentry services. We offer our interior & exterior painting services throughout Madison, Wi. and surrounding Southern Wisconsin communities. We are proudly located in historic Stoughton, Wi. LIC #1010817. 5% Labor Discount for Angies List Members. Lead-Safe Certified Renovator.

"Tom and his team were wonderful. Tom helped me select a color, the house was spotless and put back together. my boys were in and out of the house while they were here and they were super kind to them as well. thanks Tom and team!!!"

Jenny M on November 2021


Avatar for Solatube Brighter Concepts Ltd

Solatube Brighter Concepts Ltd

4.91(
182
)

Solatube Brighter Concepts Ltd

4.91(
182
)
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Solatube Premier Dealer with offices in Madison and Milwaukee. Call for the one closest to you. We look forward to making your day BRIGHT! 608-278-0100 in Madison area. 414-332-9050 in Milwaukee area. Additional DBA - Brighter Concepts Solatube.

"Everything about this project was great: getting an estimate, scheduling the installation, the installer, and the product. We should have added a Solatube to our dark hallway a long time ago. This was an excellent investment, and worth every penny."

Jed D on May 2019

Solatube Premier Dealer with offices in Madison and Milwaukee. Call for the one closest to you. We look forward to making your day BRIGHT! 608-278-0100 in Madison area. 414-332-9050 in Milwaukee area. Additional DBA - Brighter Concepts Solatube.

"Everything about this project was great: getting an estimate, scheduling the installation, the installer, and the product. We should have added a Solatube to our dark hallway a long time ago. This was an excellent investment, and worth every penny."

Jed D on May 2019


Avatar for Warren Heating & Air Conditioning

Warren Heating & Air Conditioning

4.95(
75
)

Warren Heating & Air Conditioning

4.95(
75
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

. Award winning. In 1946 Warren Heating & Air Conditioning began providing residential and commercial customers with affordable comfort thanks to high quality heating and Air Conditioning systems from Bryant. For 65 years, Warren Heating & Air Conditioning has been the name that home owners and businesses in the Madison and Dane County area depend on for complete sales, service and installation of HVAC and indoor air quality products. We are honored to have over 12,000 customers in the Dane County area that have helped us grow to one of the top HVAC companies in the area.When you call Warren Heating & Air Conditioning, you can rely on our team of factory-trained technicians to be on the job quickly and to treat every customer with the respect they deserve. At Warren Heating & Air Conditioning, we repair all makes and models, provide 24-hour emergency service (no trip charge) and even offer the benefits of a full service sheet metal shop.

. Award winning. In 1946 Warren Heating & Air Conditioning began providing residential and commercial customers with affordable comfort thanks to high quality heating and Air Conditioning systems from Bryant. For 65 years, Warren Heating & Air Conditioning has been the name that home owners and businesses in the Madison and Dane County area depend on for complete sales, service and installation of HVAC and indoor air quality products. We are honored to have over 12,000 customers in the Dane County area that have helped us grow to one of the top HVAC companies in the area.When you call Warren Heating & Air Conditioning, you can rely on our team of factory-trained technicians to be on the job quickly and to treat every customer with the respect they deserve. At Warren Heating & Air Conditioning, we repair all makes and models, provide 24-hour emergency service (no trip charge) and even offer the benefits of a full service sheet metal shop.

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Electrical questions, answered by experts

Tankless water heaters won’t increase your electric bill. Since tankless water heaters are more efficient than tank water heaters, installing one in your home will actually allow you to save money on your electric bill. The Department of Energy estimates you can save $100 or more each year with a high-efficiency tankless water heater.

When shopping for a multimeter to handle this job, make sure you purchase one that is able to test for capacitance. While most multimeters offer this function, some do not. You shouldn’t have to spend a lot of money to find the right multimeter. There are models that can perform this test that cost as little as $10.

Yes—if a breaker is old or damaged, it might not be able to detect power surges or electrical overload. If that happens, the breaker won’t trip. Instead, it will begin to overheat, putting your electrical system at risk of fire or total electrical failure. Circuit breakers don’t last forever, so you can proactively replace old or damaged breakers before they stop working.

The dials on an electrical meter simply represent the number of kWh you have used since it was installed. In a five-dial setup, the left-most dial represents tens of thousands of kWh, while the next dial to the right represents thousands of kWh. The following dials going to the right represent hundreds, tens, and ones.

The color of your cable will help you to identify its function. In the U.S., the National Electrical Code (NEC) designates the color code for electrical cables. “Hot” cables are black, red, and blue. In cases of higher voltage lines, orange might also be used to indicate a hot cable. White or gray indicates a neutral, and green or green with a yellow stripe indicates a ground.

The Columbus, WI homeowners’ guide to electrical services

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