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*The Angi rating for Subcontracting companies in Waterloo, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Subcontracting needs.
*The HomeAdvisor rating for Subcontracting companies in Waterloo, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Subcontracting needs.
Last update on December 24, 2025
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Mad City Windows & Baths
Mad City Windows & Baths
We are the premier home improvement company in Madison, Green Bay, Milwaukee & throughout Wisconsin with years of experience and countless home improvement projects to prove it. We’re locally owned and operated so we know what works best in this climate and we choose quality products designed with Wisconsin area homeowners in mind. Whether you need replacement windows, vinyl siding, bathrooms, or metal roofing our professional installers will leave your home looking great.
"professional installation"
norman b on December 2025
We are the premier home improvement company in Madison, Green Bay, Milwaukee & throughout Wisconsin with years of experience and countless home improvement projects to prove it. We’re locally owned and operated so we know what works best in this climate and we choose quality products designed with Wisconsin area homeowners in mind. Whether you need replacement windows, vinyl siding, bathrooms, or metal roofing our professional installers will leave your home looking great.
"professional installation"
norman b on December 2025

Clark Heating & Cooling
Clark Heating & Cooling
Clark Heating & Cooling offers American standard & Bryant heating & cooling products. We could offer many other brands but we feel these two offer the best balance of features, benefits, reliability, warranty coverage and overall value. As we say, the bitterness of poor quality remains long after the sweetness of a low price is forgotten. We are an American standard customer care dealer which means we go above & beyond to ensure a great experience with Clark heating. We have many times been recognized as "dealer of the year" for providing unmatched service. We've accomplished this by maintaining customer satisfaction rating of over 98%. Contact us today, we'd love to make you a satisfied customer too.
"Great to work with. They were efficient and knowledgeable. They took care of the rebate for our heat pump. Only thing lacking was responsiveness to email/phone communication after the install was done. Heat pump system is working great."
Chris M on February 2024
Clark Heating & Cooling offers American standard & Bryant heating & cooling products. We could offer many other brands but we feel these two offer the best balance of features, benefits, reliability, warranty coverage and overall value. As we say, the bitterness of poor quality remains long after the sweetness of a low price is forgotten. We are an American standard customer care dealer which means we go above & beyond to ensure a great experience with Clark heating. We have many times been recognized as "dealer of the year" for providing unmatched service. We've accomplished this by maintaining customer satisfaction rating of over 98%. Contact us today, we'd love to make you a satisfied customer too.
"Great to work with. They were efficient and knowledgeable. They took care of the rebate for our heat pump. Only thing lacking was responsiveness to email/phone communication after the install was done. Heat pump system is working great."
Chris M on February 2024

Cardinal Heating & Air Conditioning
Cardinal Heating & Air Conditioning
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

Current Electric Co
Current Electric Co
Since 1983, Current Electric Co. has been providing homes and businesses throughout Milwaukee and surrounding areas expert electrical solutions. From whole home rewiring and service panel upgrades to lighting installation and outlet replacement, our highly trained electricians have you covered. We take the time to deliver unparalleled workmanship and customer service every time. Our local and skilled electricians work quickly and cleanly to restore your electric system as soon as possible while using cutting-edge products and techniques to ensure long-lasting and energy-efficient solutions. With years of commercial and residential electric experience, no job is too big or small for our highly trained team.
"Excellent service. I had a bad electric outlet that didn't work. Technician found the bad splice in the basement. I would never felt comfortable working on 120V live wires. There was a apprentice and he was also very professional. I would use them again. "
Mark R on November 2025
Since 1983, Current Electric Co. has been providing homes and businesses throughout Milwaukee and surrounding areas expert electrical solutions. From whole home rewiring and service panel upgrades to lighting installation and outlet replacement, our highly trained electricians have you covered. We take the time to deliver unparalleled workmanship and customer service every time. Our local and skilled electricians work quickly and cleanly to restore your electric system as soon as possible while using cutting-edge products and techniques to ensure long-lasting and energy-efficient solutions. With years of commercial and residential electric experience, no job is too big or small for our highly trained team.
"Excellent service. I had a bad electric outlet that didn't work. Technician found the bad splice in the basement. I would never felt comfortable working on 120V live wires. There was a apprentice and he was also very professional. I would use them again. "
Mark R on November 2025

Top Bros Construction & Remodeling Inc.
Top Bros Construction & Remodeling Inc.
Top Bros Construction & Remodeling Inc. is a family owned business by two brothers that love to create customers imaginations into realities. We as Top Bros Construction do all kind of interior remodeling in people's homes. From remodeling your bathrooms into master bathrooms or having the nicest kitchen you ever picture. We also install all hard surface floors starting from vinyl planks, laminate, vct tile, hardwood, engineer hardwood, ceramics. We refinishing and varnish hardwood floors as well as stairs and handrails. Were love to help our customers go thru the whole experience in a great matter of order and completion.
"⭐️⭐️⭐️⭐️⭐️ Absolutely Stunning Refinish – Highly Recommend! I couldn't be happier with the way our hardwood floors turned out! We had some old, torn-up floors that honestly looked like they were beyond saving—but the transformation is unbelievable. After the refinishing, they look like brand new floors, absolutely gorgeous, with a smooth, rich finish that completely elevates the look of our home. Not only was the quality of the work exceptional, but the price was also more than fair—especially considering the results. On top of that, they were incredibly professional: they showed up 15 minutes early, ready to work, and clearly take pride in what they do. It’s rare to find that kind of reliability and craftsmanship these days. If you're thinking about getting your hardwood floors redone, do it—and call these folks. I can't recommend them enough!"
shane m on July 2025
Top Bros Construction & Remodeling Inc. is a family owned business by two brothers that love to create customers imaginations into realities. We as Top Bros Construction do all kind of interior remodeling in people's homes. From remodeling your bathrooms into master bathrooms or having the nicest kitchen you ever picture. We also install all hard surface floors starting from vinyl planks, laminate, vct tile, hardwood, engineer hardwood, ceramics. We refinishing and varnish hardwood floors as well as stairs and handrails. Were love to help our customers go thru the whole experience in a great matter of order and completion.
"⭐️⭐️⭐️⭐️⭐️ Absolutely Stunning Refinish – Highly Recommend! I couldn't be happier with the way our hardwood floors turned out! We had some old, torn-up floors that honestly looked like they were beyond saving—but the transformation is unbelievable. After the refinishing, they look like brand new floors, absolutely gorgeous, with a smooth, rich finish that completely elevates the look of our home. Not only was the quality of the work exceptional, but the price was also more than fair—especially considering the results. On top of that, they were incredibly professional: they showed up 15 minutes early, ready to work, and clearly take pride in what they do. It’s rare to find that kind of reliability and craftsmanship these days. If you're thinking about getting your hardwood floors redone, do it—and call these folks. I can't recommend them enough!"
shane m on July 2025

KETTLE MORAINE HEATING & AIR CONDITIONING LLC
KETTLE MORAINE HEATING & AIR CONDITIONING LLC
Kettle Moraine Heating & Air Conditioning, LLC is a third-generation family-owned business that has been serving Southeastern Wisconsin for over 35 years. Our mission is to provide our customers with peace of mind and 5-star service. We specialize in air conditioning, furnaces, boilers, ductless mini-splits, solar, backup generators, radon mitigation, plumbing and electrical services. Additionally, we are the region’s premier installer of Lennox energy-efficient heating and cooling systems and Mitsubishi ductless mini-split systems. With an unwavering commitment to our customers, you can count on us to deliver the personalized care you deserve. • 24/7 Emergency Service • Tune-Ups/Maintenance Plans • 0% Financing
"This company is amazing! I would recommend them 10times over. The job was gone quickly and with such precision. They care about their customers and will go to lengths that most companies, nowadays, have forgotten. The owner himself is not afraid to work hard and do what needs to be done. Sherry was beyond helpful and supportive throughout the process. If you want the job done right, this is your company."
Nichole S on November 2022
Kettle Moraine Heating & Air Conditioning, LLC is a third-generation family-owned business that has been serving Southeastern Wisconsin for over 35 years. Our mission is to provide our customers with peace of mind and 5-star service. We specialize in air conditioning, furnaces, boilers, ductless mini-splits, solar, backup generators, radon mitigation, plumbing and electrical services. Additionally, we are the region’s premier installer of Lennox energy-efficient heating and cooling systems and Mitsubishi ductless mini-split systems. With an unwavering commitment to our customers, you can count on us to deliver the personalized care you deserve. • 24/7 Emergency Service • Tune-Ups/Maintenance Plans • 0% Financing
"This company is amazing! I would recommend them 10times over. The job was gone quickly and with such precision. They care about their customers and will go to lengths that most companies, nowadays, have forgotten. The owner himself is not afraid to work hard and do what needs to be done. Sherry was beyond helpful and supportive throughout the process. If you want the job done right, this is your company."
Nichole S on November 2022
Excel Electric, Inc.
Excel Electric, Inc.
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

JB Mechanical, LLC
JB Mechanical, LLC
JB Mechanical, LLC, is your premier choice for all of your HVAC needs in Beaver Dam, Wisconsin and surrounding areas. No project is too big or too small, so call today and let us put our experience to work for you!
"Prompt service, courteous technucians"
Sandra G on March 2023
JB Mechanical, LLC, is your premier choice for all of your HVAC needs in Beaver Dam, Wisconsin and surrounding areas. No project is too big or too small, so call today and let us put our experience to work for you!
"Prompt service, courteous technucians"
Sandra G on March 2023

Mad City Windows & Baths
Mad City Windows & Baths
To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. Today, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.
"High pressure sales person which ended up with a mismatch of the rest of my bathroom. They refuse to make it right. . I would recommend that you go with a different company. "
Karen P on November 2025
To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. Today, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.
"High pressure sales person which ended up with a mismatch of the rest of my bathroom. They refuse to make it right. . I would recommend that you go with a different company. "
Karen P on November 2025

Aqua Well & Pump Systems Inc
Aqua Well & Pump Systems Inc
Aqua Well & Pump Systems, Inc., is a 3rd generation; family owned & operated, well and pump service company, serving all of Southeastern Wisconsin. Our mission at Aqua is to provide our customers with a safe, reliable water supply, while safe guarding & promoting the protection of our most precious resource. To accomplish this mission, Aqua is dedicated to investing in promotion, equipment, & most of all people who share the same core values of knowledge, integrity, hard work, & honesty. Aqua provides pump & well drilling service for residential, industrial, commercial, & farm applications. services.
"They were quick and efficient"
Carol F on September 2025
Aqua Well & Pump Systems, Inc., is a 3rd generation; family owned & operated, well and pump service company, serving all of Southeastern Wisconsin. Our mission at Aqua is to provide our customers with a safe, reliable water supply, while safe guarding & promoting the protection of our most precious resource. To accomplish this mission, Aqua is dedicated to investing in promotion, equipment, & most of all people who share the same core values of knowledge, integrity, hard work, & honesty. Aqua provides pump & well drilling service for residential, industrial, commercial, & farm applications. services.
"They were quick and efficient"
Carol F on September 2025
The Waterloo, WI homeowners’ guide to subcontracting services
From average costs to expert advice, get all the answers you need to get your job done.

Installing a dedicated line in your home or garage is fairly straightforward, but may have a wide range of cost-affecting factors, like materials, labor, and necessary permits.

The average cost to replace an electrical mast is around $750, depending on the size and extent of the replacement. Read on to budget for a meter riser.

If your outside electrical meter box has sustained wear and tear, it might be time for a replacement. How much it costs to replace an electrical meter box depends on labor, model, and box type.

Today’s polarized plugs and outlets have a hot and neutral side, which is important for any receptacle wiring. Here’s what that means, why it happened, and how to take advantage of it.

Wondering how to tell if a circuit breaker is bad? There are several warning signs you should know to help keep your family, home, and electronics safe from shortages and fires. Keep reading to learn the signs to watch out for with circuit breakers.

Learn how to install a coax outlet to save money and clean up the tangle of wires in your entertainment room or living room.
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