How often do I need to service my HVAC system?

• <div><p>You need to service an HVAC system about twice per year, with a service including an inspection and basic maintenance. It’s best to schedule maintenance in the spring (after the furnace has been running and before the AC kicks on) and in the fall (after the AC worked hard all summer and before winter’s first chill arrives). </p><p>Regular HVAC services will keep the system working as efficiently as possible, saving you money on utilities and larger repairs. <a href="https://www.angi.com/articles/ac-service-cost.htm">HVAC maintenance costs</a> around $250 per visit, while bigger repairs from forgotten upkeep could cost thousands.</p></div>

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Q: How do I maintain my geothermal system?

• <div><p>Regular inspections, loop flushing, and checking heat exchangers help extend system lifespan.</p></div>

Q: Do services include refrigerant checks?

• <div><p>Yes, technicians check refrigerant levels, loop performance, and system calibration for peak efficiency.</p></div>

Q: Are there energy-efficient measures taken during these services?

• <div><p>Yes, including optimizing settings and suggesting upgrades if needed.</p></div>

Q: Do NATE-certified technicians cost more?

• <div><p>NATE-certified technicians may charge slightly higher service fees compared to non-certified technicians. This is because NATE certification signifies a higher level of expertise and professionalism, often leading to more efficient and effective HVAC repairs and installations. While the upfront cost may be marginally higher, NATE-certified technicians can potentially save you money in the long run by reducing energy consumption, preventing frequent breakdowns, and extending the life span of your HVAC system. When looking for a <a href="https://www.angi.com/nearme/hvac-companies/">local HVAC company to hire</a>, it never hurts to ask about NATE certifications. </p></div>

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Verified Reviews for Heating Oil Service pros in Rio, WI

*The Angi rating for Heating Oil Service companies in Rio, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating Oil Service needs.

*The HomeAdvisor rating for Heating Oil Service companies in Rio, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating Oil Service needs.

Last update on October 23, 2025

Reviewed in April 2024
Great windows. Saw immediate savings in our heating bill. Installation was very quick and professional. Warranty is great. They did have to come back to fix a small portion of our admittedly brittle siding and they did that with in a few days. very satisfied with the results.
Mad City Windows & Baths
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Reviewed in February 2023
Very quick response. Installed a new water heater on the same day as the request.
KJM Plumbing
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Reviewed in January 2023
Super fast service. Was able to come and replace my water heater the same day they were contacted. Very detailed. Made sure everything, gas and water, were working correctly throughout the house. Kurt was great. I will definitely call him again, when needed.
KJM Plumbing
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Reviewed in March 2021
About 2 weeks ago (2/17) we woke to a burning plastic smell coming from our furnace. Modern came up in a HVAC near me search so we called them. They did show up quickly to service our furnace. I’ll give them that. The tech that came did a less than thorough service on the unit. The tech found...
Modern Heating & Cooling Inc
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Reviewed in January 2019
I recently had Jensen Plumbing and Heating replace my entire HVAC system, because my furnace had some serious problems. The owners, Sheldon & Jen, were very knowledgable and pleasant to deal with; their installers, Dave & Nate, did an excellent job. They sold me a high efficiency Carrier...
Jensen Plumbing & Heating Inc
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Reviewed in June 2017
What do I know about garage doors? Nothing. He could have charged me hundreds. But all I needed was a little oil. Under $100 for everything.Honest honest honest.
Meinholz Overhead Door
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Reviewed in October 2014
I have been using them for oil changes and other repairs, and I just feel like he is trustworthy, and gives good advise. He can fix something that is beyond fixing. I use them all the time.
Krause's Service Station
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Reviewed in May 2012
I like that they're local. The scheduling is really easy with them. They're very prompt. We had our whole heating and cooling system replaced in December. They cleaned up the whole place. They didn't leave a mess. Everything was done correctly.
Olson Heating, Cooling & App LLC
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Reviewed in November 2011
I called Action Plumbing to get an estimate on a new water heater and water softener. Andy, who gave me a quote, was very nice and not at all patronizing. In talking to me more, Andy thought that we may not need a new water softener; that maybe we just need it reset. I scheduled the appointment...
Action Plumbing Heating ,and Electric
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Reviewed in September 2010
They were very experienced with the type of installation that we were interested in; including larger sized ducting for geo-thermal forced air heating and cooling. They were accustomed to that type of work.
Tas Heating & Cooling
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Find Heating oil pros in Rio

Cardinal Heating & Air Conditioning

Cardinal Heating & Air Conditioning

Customers say: Quick response

Recommended by 97% of Angi customers

163 local quotes requested

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!

"Nick our technician was professional, informative and explained everything he was doing in detail and at a level we could understand and follow. We are so impressed with Cardinal, with Nick the technician and will not only hire them again, but highly recommend them to family and friends."

Meg V on October 2025

"Nick our technician was professional, informative and explained everything he was doing in detail and at a level we could understand and follow. We are so impressed with Cardinal, with Nick the technician and will not only hire them again, but highly recommend them to family and friends."

Meg V on October 2025

Southport Home Services

Southport Home Services

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.

JB Mechanical, LLC

119 West Water Street

4.88(

)

•Approved Pro

JB Mechanical, LLC

119 West Water Street

4.88(

)

•Approved Pro

Customers say: Quality work

Recommended by 96% of Angi customers

50 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

"Prompt service, courteous technucians"

Sandra G on March 2023

Quick Service Recovery

PO Box 504

No reviews yet

Quick Service Recovery

PO Box 504

No reviews yet

35 years of experience

A family owned business that has been going strong for over 20 years!!! Our goal is to make getting rid of anything fast, and easy! We specialize in fuel oil tank removal. Licensed with the DNR, EPA and carry a full line of insurance.

Lifetime Home Services

Lifetime Home Services

Customers say: Quality work

Recommended by 96% of Angi 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

Heating Oil questions, answered by experts

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

Yes, technicians check refrigerant levels, loop performance, and system calibration for peak efficiency.

You need to service an HVAC system about twice per year, with a service including an inspection and basic maintenance. It’s best to schedule maintenance in the spring (after the furnace has been running and before the AC kicks on) and in the fall (after the AC worked hard all summer and before winter’s first chill arrives).

Regular HVAC services will keep the system working as efficiently as possible, saving you money on utilities and larger repairs. HVAC maintenance costs around $250 per visit, while bigger repairs from forgotten upkeep could cost thousands.

Yes, including optimizing settings and suggesting upgrades if needed.

NATE-certified technicians may charge slightly higher service fees compared to non-certified technicians. This is because NATE certification signifies a higher level of expertise and professionalism, often leading to more efficient and effective HVAC repairs and installations. While the upfront cost may be marginally higher, NATE-certified technicians can potentially save you money in the long run by reducing energy consumption, preventing frequent breakdowns, and extending the life span of your HVAC system. When looking for a local HVAC company to hire, it never hurts to ask about NATE certifications.

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