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TRUSTED BY SULLIVAN, WI HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon310
    Verified boiler repairs reviews

Find Boiler repair pros in Sullivan

Avatar for MH Renovations LLC

MH Renovations LLC

4.98(
98
)
Approved Pro

MH Renovations LLC

4.98(
98
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
134 local quotes requested

MH Renovations LLC is a family-owned and operated home improvement company proudly serving Southeastern Wisconsin. We specialize in high-quality, custom renovations tailored to your budget, lifestyle, and vision. With a strong commitment to craftsmanship and attention to detail, we deliver results that are both functional and beautiful. Whether you're updating a kitchen, remodeling a bathroom, finishing a basement, or tackling a full-home renovation, we bring care, precision, and professionalism to every project. Your home is treated with the utmost respect—we go the extra mile to keep your space and materials clean, organized, and protected throughout the construction process. We are fully licensed and insured, giving you peace of mind every step of the way. With a wide range of services and a dedication to client satisfaction, we're confident you'll enjoy working with us. Feel free to browse our website and contact us with any questions or to schedule a consultation. We look forward to bringing your vision to life.

"Extremely well. It's nice to work with someone that has a great professional work ethic."

Bethanne C on February 2025

MH Renovations LLC is a family-owned and operated home improvement company proudly serving Southeastern Wisconsin. We specialize in high-quality, custom renovations tailored to your budget, lifestyle, and vision. With a strong commitment to craftsmanship and attention to detail, we deliver results that are both functional and beautiful. Whether you're updating a kitchen, remodeling a bathroom, finishing a basement, or tackling a full-home renovation, we bring care, precision, and professionalism to every project. Your home is treated with the utmost respect—we go the extra mile to keep your space and materials clean, organized, and protected throughout the construction process. We are fully licensed and insured, giving you peace of mind every step of the way. With a wide range of services and a dedication to client satisfaction, we're confident you'll enjoy working with us. Feel free to browse our website and contact us with any questions or to schedule a consultation. We look forward to bringing your vision to life.

"Extremely well. It's nice to work with someone that has a great professional work ethic."

Bethanne C on February 2025



Avatar for Over the Moon Heating, Air & Electric

Over the Moon Heating, Air & Electric

3.78(
9
)
Approved Pro

Over the Moon Heating, Air & Electric

3.78(
9
)
Approved Pro
Customers say: Quality work
59 local quotes requested
16 years of experience

Over the Moon is in business for one reason: our customers. Our first and foremost mission is to educate customers on the safety of their home with their electrical and HVAC systems. We specialize in repairing, installing and designing electrical and HVAC systems in your home. Owner/operator Shawn White is a master electrician, as well as an electrical/HVAC licensed contractor. What that means to our customers is that our services are backed with knowledge and experience to ensure the job is done safely and up to all state and local codes. We are fully insured and registered with the state of Wisconsin. Our team of licensed, background checked technicians service the southeastern Wisconsin communities in their orange warehouse on wheels. Our technicians are dedicated to supplying our customers with solutions met with customer service second to none. Trust us to Educate you on the Safety of your home.

"I had the Team out to perform and AC service and Furnace tune up. With such great service and comparable pricing I ended up moving forward with duct cleaning services. The guys were friendly and professional they were also nice to my doberman."

Brie K on August 2024

Over the Moon is in business for one reason: our customers. Our first and foremost mission is to educate customers on the safety of their home with their electrical and HVAC systems. We specialize in repairing, installing and designing electrical and HVAC systems in your home. Owner/operator Shawn White is a master electrician, as well as an electrical/HVAC licensed contractor. What that means to our customers is that our services are backed with knowledge and experience to ensure the job is done safely and up to all state and local codes. We are fully insured and registered with the state of Wisconsin. Our team of licensed, background checked technicians service the southeastern Wisconsin communities in their orange warehouse on wheels. Our technicians are dedicated to supplying our customers with solutions met with customer service second to none. Trust us to Educate you on the Safety of your home.

"I had the Team out to perform and AC service and Furnace tune up. With such great service and comparable pricing I ended up moving forward with duct cleaning services. The guys were friendly and professional they were also nice to my doberman."

Brie K on August 2024


Avatar for Exterior Pros, LLC

Exterior Pros, LLC

4.53(
34
)
Approved Pro

Exterior Pros, LLC

4.53(
34
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
18 local quotes requested

We are a family owned home improvement company out of Sussex Wisconsin. We service Waukesha, Milwaukee, Washington, & parts of Ozaukee, Dodge, Racine, and Kenosha counties. We focus on the quality products we install & service, while maintaining a high level of customer service. We are proud to be recognized as a GAF Master Elite Contractor for roofing projects. We also provide fantastic siding & windows, as well as entry doors. We also specialize in bathroom and shower areas, converting tubs to showers or showers to tubs. Beautiful acrylic shower surrounds or tub liner inserts make any old bathroom wet space new again. We work efficiently with our resources to ensure your project is completed on time and on budget. We bring old-world, quality craftsmanship to every unique project we take on. We are licensed and insured & look forward to building strong, long-lasting relationships with our clients and guarantee your satisfaction. Call today for a Free Estimate 262-456-3530

"the contractor did a great job"

Vicki S on January 2023

We are a family owned home improvement company out of Sussex Wisconsin. We service Waukesha, Milwaukee, Washington, & parts of Ozaukee, Dodge, Racine, and Kenosha counties. We focus on the quality products we install & service, while maintaining a high level of customer service. We are proud to be recognized as a GAF Master Elite Contractor for roofing projects. We also provide fantastic siding & windows, as well as entry doors. We also specialize in bathroom and shower areas, converting tubs to showers or showers to tubs. Beautiful acrylic shower surrounds or tub liner inserts make any old bathroom wet space new again. We work efficiently with our resources to ensure your project is completed on time and on budget. We bring old-world, quality craftsmanship to every unique project we take on. We are licensed and insured & look forward to building strong, long-lasting relationships with our clients and guarantee your satisfaction. Call today for a Free Estimate 262-456-3530

"the contractor did a great job"

Vicki S on January 2023


Avatar for Southport Home Services

Southport Home Services

5.00(
5
)
Approved Pro

Southport Home Services

5.00(
5
)
Approved Pro
117 local quotes requested
20 years of experience

At Southport Home Services, we're A+ rated by the BBB. Our technicians are NATE certified to meet national standards of excellence, and we're a Carrier® Factory Authorized Dealer, recently cited as the top medium-sized business to work for by the Milwaukee Journal Sentinel. We treat our team well and hold them to high professional standards. Our up front, transparent pricing, great customer service, and honesty in our business practices make us the plumbing and HVAC company that you'll feel good working with on a regular basis, with 100% satisfaction guaranteed.

At Southport Home Services, we're A+ rated by the BBB. Our technicians are NATE certified to meet national standards of excellence, and we're a Carrier® Factory Authorized Dealer, recently cited as the top medium-sized business to work for by the Milwaukee Journal Sentinel. We treat our team well and hold them to high professional standards. Our up front, transparent pricing, great customer service, and honesty in our business practices make us the plumbing and HVAC company that you'll feel good working with on a regular basis, with 100% satisfaction guaranteed.


WARNKE PLUMBING

New on AngiNew on Angi
Approved Pro

WARNKE PLUMBING

New on AngiNew on Angi
Approved Pro
25 local quotes requested
1 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!


Avatar for Premier Home Pros, LLC

Premier Home Pros, LLC

4.32(
67
)
Approved Pro

Premier Home Pros, LLC

4.32(
67
)
Approved Pro
Customers say: Quick response
169 local quotes requested
3 years of experience

Premier Home Pros specializes in full bathroom remodels and installs finely crafted bathtubs and showers in as little as one day. With maintenance-free solutions and a variety of stunning designs to match your style, getting your dream bathroom has never been easier and more affordable. All of our products our backed by a full lifetime and service warranty program to offer customers the last system they will ever need. Get a FREE design consultation and transform your bathroom into a space that's not only functional, beautiful.

"The salesman was knowledgeable, professional and explained everything about the shower install well. I gave him a deposit of $3200. I did not hear from anyone so after 3 days I called but no one returned my call. Called back again a week later to cancel the order. Left a long message stating I did not want to cancel the order but was concerned because no one returned my calls. Finally, received a call from a regional manager. He connected me to a local manager who set up an install date a week later. The installers were polite and professional. Gave me some helpful advise. Job was completed in less than a day. The shower door came a week later. I have had the shower for over a month. It is beautiful. I love it. Quality work. I would highly recommend Premier Home Pros."

Loraine G on October 2025

Premier Home Pros specializes in full bathroom remodels and installs finely crafted bathtubs and showers in as little as one day. With maintenance-free solutions and a variety of stunning designs to match your style, getting your dream bathroom has never been easier and more affordable. All of our products our backed by a full lifetime and service warranty program to offer customers the last system they will ever need. Get a FREE design consultation and transform your bathroom into a space that's not only functional, beautiful.

"The salesman was knowledgeable, professional and explained everything about the shower install well. I gave him a deposit of $3200. I did not hear from anyone so after 3 days I called but no one returned my call. Called back again a week later to cancel the order. Left a long message stating I did not want to cancel the order but was concerned because no one returned my calls. Finally, received a call from a regional manager. He connected me to a local manager who set up an install date a week later. The installers were polite and professional. Gave me some helpful advise. Job was completed in less than a day. The shower door came a week later. I have had the shower for over a month. It is beautiful. I love it. Quality work. I would highly recommend Premier Home Pros."

Loraine G on October 2025


Collins Sanitary, LLC

4.76(
128
)
Approved Pro

Collins Sanitary, LLC

4.76(
128
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
37 local quotes requested

Collins Sanitary, LLC, provides services with over 30 years experience that includes complete installation of septic systems and low-cost septic tank cleaning services. We also have a master plumber on staff to take care of all of your plumbing needs, from a leaky faucet to a new installation or remodel. We specialize in making tub/showers handi-cap accessible or senior citizen friendly with removal and re-install all in one day. We cater to commercial, industrial, agricultural, and residential clients in Wisconsin and Illinois. We are also a proud member of the Better Business Bureau (BBB). Contact Collins Sanitary, LLC, today for your free estimate.

"They arrived on time, explained the job me and were courteous."

Carol W on May 2023

Collins Sanitary, LLC, provides services with over 30 years experience that includes complete installation of septic systems and low-cost septic tank cleaning services. We also have a master plumber on staff to take care of all of your plumbing needs, from a leaky faucet to a new installation or remodel. We specialize in making tub/showers handi-cap accessible or senior citizen friendly with removal and re-install all in one day. We cater to commercial, industrial, agricultural, and residential clients in Wisconsin and Illinois. We are also a proud member of the Better Business Bureau (BBB). Contact Collins Sanitary, LLC, today for your free estimate.

"They arrived on time, explained the job me and were courteous."

Carol W on May 2023


Avatar for Capital Heating & Cooling

Capital Heating & Cooling

4.64(
146
)
Approved Pro

Capital Heating & Cooling

4.64(
146
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
411 local quotes requested

Capital Heating, Cooling, Electric & Plumbing is a trusted home service provider in Menomonee Falls, WI. We offer expert HVAC, electrical, and plumbing solutions with a commitment to quality, reliability, and customer satisfaction. Our team is available 24/7, ensuring fast and professional service whenever you need it. With top-rated technicians, upfront pricing, and industry-leading warranties, we guarantee comfort and peace of mind for every customer. Whether you need repairs, installations, or maintenance, we’re here to help!

"He did the job, but charged us $504 to replace a mixing valve. Part was under $100. He was here less than 2 hours."

Belinda K on August 2025

Capital Heating, Cooling, Electric & Plumbing is a trusted home service provider in Menomonee Falls, WI. We offer expert HVAC, electrical, and plumbing solutions with a commitment to quality, reliability, and customer satisfaction. Our team is available 24/7, ensuring fast and professional service whenever you need it. With top-rated technicians, upfront pricing, and industry-leading warranties, we guarantee comfort and peace of mind for every customer. Whether you need repairs, installations, or maintenance, we’re here to help!

"He did the job, but charged us $504 to replace a mixing valve. Part was under $100. He was here less than 2 hours."

Belinda K on August 2025


Avatar for Aqua Well & Pump Systems Inc

Aqua Well & Pump Systems Inc

4.64(
67
)
Approved Pro

Aqua Well & Pump Systems Inc

4.64(
67
)
Approved Pro
Customers say: True professional
52 local quotes requested
38 years of experience

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

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Boiler Repair questions, answered by experts

Costs depend on issue severity, parts needed, and labor rates.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

Attempting DIY fixes can be dangerous. Regular boiler maintenance can help prevent overheating, so schedule professional servicing as a preventive measure. In an emergency, telling occupants to leave the house is a good idea. Then, you can turn off the boiler and the gas or fuel supply. Let it cool naturally, and check the thermostat's settings. Ensure there are no obstructions around the boiler for proper ventilation. Monitor the pressure gauge; if it's too high, bleed the radiators if necessary. During this time, bringing in professionals for troubleshooting is also smart.

If you have multiple radiators, start by bleeding a first-floor radiator that is farthest from the boiler. Work your way toward the boiler on the first floor before moving to the next floor, where you’ll again start by bleeding the radiator farthest from the boiler. Continue this pattern for radiators on each floor until they’ve all been bled.

Common problems include leaks, low pressure, and inefficient heating. Regular maintenance prevents many issues.

The Sullivan, WI homeowners’ guide to boiler repairs

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