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Find Heating oil pros in Oconomowoc


Avatar for Over the Moon Heating, Air & Electric

Over the Moon Heating, Air & Electric

20711 Watertown Road Suite D
3.78(
9
)
Approved Pro

Over the Moon Heating, Air & Electric

20711 Watertown Road Suite D
3.78(
9
)
Approved Pro
Customers say: Quality work
75 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 Mister Sparky of Brew City

Mister Sparky of Brew City

450 S Curtis Rd
4.86(
7
)
Approved Pro

Mister Sparky of Brew City

450 S Curtis Rd
4.86(
7
)
Approved Pro
Customers say: Quick response
115 local quotes requested
29 years of experience

At Mister Sparky, we know how much you depend on electricity to power your daily life. Luckily, we’re experts when it comes to safeguarding against its inherent dangers and are ready to do the reliable work needed to ensure your home’s electrical systems work for years to come. Our highly trained, licensed electricians are professional troubleshooters who hunt potential hazards and fix them before they cause serious damage. We show up on time, guaranteed, and deliver 100% satisfaction guaranteed with every service call. And because we’re locally operated, our electricians are familiar with the challenges you might face.

"Needed to hook up my portable generator to the house. Mr Sparky was the first to call from angi so I asked for a quote. They came over very quickly and gave my wife and I a very good quote we thought. We didn't even get another, Slept on it, they called back the next day and we set set up a date. Mario showed up (very nice guy) . Said it would be a couple hours, and it was. They didn't need to turn off the whole house which was good and wired in a new electrical panel and plug on the outside. We tested it, and it worked perfectly. We are very happy. Thanks guys....!"

SCOTT C on October 2025

At Mister Sparky, we know how much you depend on electricity to power your daily life. Luckily, we’re experts when it comes to safeguarding against its inherent dangers and are ready to do the reliable work needed to ensure your home’s electrical systems work for years to come. Our highly trained, licensed electricians are professional troubleshooters who hunt potential hazards and fix them before they cause serious damage. We show up on time, guaranteed, and deliver 100% satisfaction guaranteed with every service call. And because we’re locally operated, our electricians are familiar with the challenges you might face.

"Needed to hook up my portable generator to the house. Mr Sparky was the first to call from angi so I asked for a quote. They came over very quickly and gave my wife and I a very good quote we thought. We didn't even get another, Slept on it, they called back the next day and we set set up a date. Mario showed up (very nice guy) . Said it would be a couple hours, and it was. They didn't need to turn off the whole house which was good and wired in a new electrical panel and plug on the outside. We tested it, and it worked perfectly. We are very happy. Thanks guys....!"

SCOTT C on October 2025


Avatar for JB Mechanical, LLC

JB Mechanical, LLC

119 West Water Street
4.88(
30
)
Approved Pro

JB Mechanical, LLC

119 West Water Street
4.88(
30
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
55 local quotes requested

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


TRU Heating & Cooling Services

230 S. Orchard
No reviews yet

TRU Heating & Cooling Services

230 S. Orchard
No reviews yet
16 years of experience

TRU Heating is a division of Herbst Oil Inc. We offer commercial & residential service and installation of furnaces, boilers, air conditioning, and refrigeration systems. We are a local business employing 1 full time tech, and 2 part time helpers. We service all makes and brands.

TRU Heating is a division of Herbst Oil Inc. We offer commercial & residential service and installation of furnaces, boilers, air conditioning, and refrigeration systems. We are a local business employing 1 full time tech, and 2 part time helpers. We service all makes and brands.



Lifetime Home Services

805 Wells St
4.88(
104
)

Lifetime Home Services

805 Wells St
4.88(
104
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Owner Operated. Cost determined by the job. NRPP Certification #RMT-101552, AARST Member. Licensed. Cash accepted. https://www.lifetimehomeservices.com/

"They did an outstanding job. First rate. I would highly recommend Lifetime Home Services."

Dan K on January 2025

Owner Operated. Cost determined by the job. NRPP Certification #RMT-101552, AARST Member. Licensed. Cash accepted. https://www.lifetimehomeservices.com/

"They did an outstanding job. First rate. I would highly recommend Lifetime Home Services."

Dan K on January 2025


Mr. Holland's Home Services LLC

W204N16635 JACKSON DR
4.33(
240
)

Mr. Holland's Home Services LLC

W204N16635 JACKSON DR
4.33(
240
)
Customers say: Super punctual
149 local quotes requested

As the trusted neighborhood HVAC service team in Milwaukee, Mr. Holland’s Home Services is committed to running their business based on five important principles: care, empathy, and trust, being always available, outworking the competition, quality workmanship, and using their “find a way” method. By keeping these five principles in mind, the business is able to deliver nothing less than excellent work when it comes to heating, air conditioning, and indoor air quality services. The professional team at Mr. Holland’s Home Services always gets the job done right. They never cut corners and are respectful of a customer’s property. Additionally, Mr. Holland’s takes their community involvement seriously; that they have a personal responsibility to help the people in their community, not just through quality services but also through the endless support they give to organizations and charities throughout Milwaukee and even outside the country. To learn more about Mr. Holland’s Home Services, please visit the company website or call the office today.

"Holland’s inflated the prices of services after the flood in August. We have been loyal customers and the services we paid for through Holland’s are more than double their competitors. We brought this to their attention over a month ago and haven't been offered a satisfactory refund. Get other quotes before booking with Hollands."

Kathy M on October 2025

As the trusted neighborhood HVAC service team in Milwaukee, Mr. Holland’s Home Services is committed to running their business based on five important principles: care, empathy, and trust, being always available, outworking the competition, quality workmanship, and using their “find a way” method. By keeping these five principles in mind, the business is able to deliver nothing less than excellent work when it comes to heating, air conditioning, and indoor air quality services. The professional team at Mr. Holland’s Home Services always gets the job done right. They never cut corners and are respectful of a customer’s property. Additionally, Mr. Holland’s takes their community involvement seriously; that they have a personal responsibility to help the people in their community, not just through quality services but also through the endless support they give to organizations and charities throughout Milwaukee and even outside the country. To learn more about Mr. Holland’s Home Services, please visit the company website or call the office today.

"Holland’s inflated the prices of services after the flood in August. We have been loyal customers and the services we paid for through Holland’s are more than double their competitors. We brought this to their attention over a month ago and haven't been offered a satisfactory refund. Get other quotes before booking with Hollands."

Kathy M on October 2025


Stramowski Heating Inc

6508 S Howell
4.73(
201
)

Stramowski Heating Inc

6508 S Howell
4.73(
201
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

PLEASE CONTACT STRAMOWSKI HEATING USING OUR WEBSITE OR PHONE FOR THE FASTEST RESPONSE. Our enrolled A+ customers qualify for NO OVERTIME for nights, weekend, or Holiday service calls. Service: NO extra charges for repair service on nights, weekends, or holidays (*owner occupied homes only). That is our COMMITMENT to YOU! Your family is important to you. Ensuring that your family is warm in the winter and cool in the summer is important to us! It’s is our specialty. Stramowski Heating takes the worry out of any heating or air conditioner repair and we make it easy to select a new heating and cooling system that best suits your family’s needs and comfort preferences. If you have a problem with your furnace, boiler or air conditioner, call us and we will dispatch one of our experts to diagnose the problem and get it fixed so that your family can remain comfortable. **Free Estimates on New Equipment Installation Only

"Kylel has been my service tech for years, he is professional, knowledgeable, and always helpful answering questions."

Lucy W on October 2025

PLEASE CONTACT STRAMOWSKI HEATING USING OUR WEBSITE OR PHONE FOR THE FASTEST RESPONSE. Our enrolled A+ customers qualify for NO OVERTIME for nights, weekend, or Holiday service calls. Service: NO extra charges for repair service on nights, weekends, or holidays (*owner occupied homes only). That is our COMMITMENT to YOU! Your family is important to you. Ensuring that your family is warm in the winter and cool in the summer is important to us! It’s is our specialty. Stramowski Heating takes the worry out of any heating or air conditioner repair and we make it easy to select a new heating and cooling system that best suits your family’s needs and comfort preferences. If you have a problem with your furnace, boiler or air conditioner, call us and we will dispatch one of our experts to diagnose the problem and get it fixed so that your family can remain comfortable. **Free Estimates on New Equipment Installation Only

"Kylel has been my service tech for years, he is professional, knowledgeable, and always helpful answering questions."

Lucy W on October 2025

Heating Oil questions, answered by experts

Regular inspections, loop flushing, and checking heat exchangers help extend system lifespan.

If a geothermal heat pump is installed correctly, then you shouldn’t have to worry about having a backup heat source such as a furnace or oil boiler. However, there are geothermal systems installed that include a backup in case the heat pump fails due to extreme cold. This is simply a backup heat pump you’ll likely never need and not an alternative heat source.

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.

The most obvious downside is the high upfront cost of buying and installing one of these systems. Additionally, sometimes the system can take a longer time to heat than alternatives like a boiler. Also, if something goes wrong with the geothermal pump, repairs are often significantly more expensive than repairing traditional, above-ground heat pumps.

Yes, many providers offer organic or eco-friendly treatments. Confirm availability with your contractor.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

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