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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TRUSTED BY FESTUS, MO HOMEOWNERS

4.1
Average homeowner rating
55
Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Festus, MO

*The Angi rating for Heating Oil Service companies in Festus, MO 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 Festus, MO 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 December 08, 2025

Reviewed in December 2021
Helps improve heat in the house. Great windows.
Midtown Home Improvements, Inc (Atlanta)*
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Reviewed in August 2017
Everything went very well, this is the second AC System they have intalled for us and all working well; Highly recommend this company for Heating & AC System repairs or replacements
GARWOOD'S HEATING & COOLING, Inc.
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Reviewed in March 2014
They were prompt and efficient. We did have to pay an extra fee for it being the weekend. But we did get hot water within just a few hours of the heater splitting.
Crull & Sons Plumbing
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Reviewed in September 2013
My family and I have bought several cars and later had Cassens auto center perform all of our oil changes. Always friendly and fair prices.
Cassen's Dodge Chrysler
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Reviewed in September 2013
Jerry keeps all of our fleet vehicles maintained as far as tires and alignments. He has performed yearly maintenance, oil changes, tune ups, anything that needed fixed on one of our vans that was pre owned by Walter Schafer. So weather you need tires, or auto repairs Jerry is the person to go...
JERRY'S TIRE SALES INC
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Reviewed in February 2013
Randy and Jan arrived on time and quickly got to work. They covered my hardwood floors to protect them from possible water damage during the removal of the old tank. The project ran into a hitch when Randy discovered that my house shut off valve was not operational. He was able to get it to...
RANDY MOORE REPAIR SVC
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Reviewed in February 2013
Terry returned our calls promptly, scheduled the work, showed up on time and performed the work in an exemplary way .I highly recommend Terry Cope and King Plumbing Heating and AC in terms of work quality, professionalism and value.
King Plumbing Heating & AC
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Reviewed in January 2013
They are very good. The shop is like a palace. You don't ever see or talk to a mechanic. You talk to a service representative. It is costly. We had a 50,000 mile warranty on the car so I was determined to take it there at least through the 50,000 miles because I didn't want anybody coming back...
Munganest Lexus
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Reviewed in December 2012
They stand behind what they do. They are very knowledgable in the area of heating and cooling. I have only had one instance where a service tech and I didn't see eye to eye and it was correctly immediately.
Fresh Air Heating & Cooling
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Reviewed in July 2010
I first learned of this shop when I worked for Enterprise-Rent-A-Car. Mark Balthaasar, the owner, would always make sure he had our car's oil changed and tires rotated promptly and would even let us know when we had mistakenly brought in a car for an oil change when it had recently been...
Lawler & Balthasar Auto Repair
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Find Heating oil pros in Festus

Liberty Heating & Cooling

4.81(

)

•Approved Pro

Liberty Heating & Cooling

Customers say: True professional

Recommended by 95% of Angi customers

82 local quotes requested

We pride our business on excellent workmanship done by our top notch employees who are the best in the industry. Our prices are hard to beat especially for the quality you will receive every time you choose us. We also specialize in having excellent customer service and do not believe in being pushy at all with our customers. Our reviews will testify to these statements about our business ethics. Our technicians have been specially trained to handle the sophisticated high-efficiency systems currently on the market today. These include all air conditioners, heat pump, furnaces, boilers and tankless water heaters.

"Very impressed on how Prompt and professional these guys are. Highly recommend."

Alejandro M on October 2025

"Very impressed on how Prompt and professional these guys are. Highly recommend."

Alejandro M on October 2025

Willys Handyman Service

4.80(

)

•Approved Pro

Willys Handyman Service

4.80(

)

•Approved Pro

Customers say: Quick response

65 local quotes requested

40 years of experience

We offer a variety of handyman services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today! I Offer all window and door replacement and/or repair This also includes screen doors. I also offer minor electrical and plumbing repairs. I do a job by job Review on if it’s something I I am comfortable with or qualified for.

"He came in at appointment time and replaced my light fixture quickly and efficiently. It looks great!"

Rhonda B on November 2025

"He came in at appointment time and replaced my light fixture quickly and efficiently. It looks great!"

Rhonda B on November 2025

All Climate Mechanical

No reviews yet

All Climate Mechanical

No reviews yet

We are a heating and cooling, commercial refrigeration, and commercial kitchen equipment service contractor offering services to residents and businesses of Franklin County, St. Louis County and surrounding areas.

Scott Lee Heating Company

4.90(

115

)

Scott Lee Heating Company

4.90(

115

)

Customers say: True professional

Recommended by 99% of Angi customers

Award winning. Additional phone number's - (636) 394-3351, (636) 949-8662, (636) 942-9949, (314) 756-9440, (636) 343-1444 & (314) 330-3545. Lennox Premier dealer.

"They were on time, they were honest and they did a good work."

Dean G on June 2022

Award winning. Additional phone number's - (636) 394-3351, (636) 949-8662, (636) 942-9949, (314) 756-9440, (636) 343-1444 & (314) 330-3545. Lennox Premier dealer.

"They were on time, they were honest and they did a good work."

Dean G on June 2022

Heating Oil questions, answered by experts

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.

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.

There are several common types of HVAC systems that you may have, including split systems, hybrid HVAC, duct-free systems, packaged heating and air, geothermal heating, or even portable units for heating or cooling. If you aren’t sure which type is in your home or are looking to install something different, you should consult an HVAC pro to determine which option is right for your heating and cooling needs.

Costs depend on system age, type, labor, and whether part replacements are necessary.

It’s a better use of energy (and your money) NOT to run an ERV system all the time. Most experts recommend that you cycle your ERV system on and off throughout the year. However, the recommended advice could change based on your climate, the number of people in your home, the size and style of your home, and your heating and cooling system. Contact a local pro for more specific advice.

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