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>

How often should I service my HVAC?

• <div><p>Your HVAC manufacturer will give you instructions on how often you should service your system. Have your unit professionally serviced at least once a year when in doubt. </p><p>Heat pump systems are different because they provide heating and cooling solutions for your home. In this case, you should have it serviced at least twice a year.</p></div>

Get matched with top heating oil pros in Centralia, IL

Enter your zip and get matched with up to 5 pros

TRUSTED BY CENTRALIA, IL HOMEOWNERS

4.2
Average homeowner rating
39
Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Centralia, IL

*The Angi rating for Heating Oil Service companies in Centralia, IL 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 Centralia, IL 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 November 13, 2025

Reviewed in July 2024
Showed up to install a new water heater same day. I was very happy with my experience. Tim was able to answer all my questions and the project was done very quickly. Excellent service very knowledgeable and professional. I completely recommend Grundy Plumbing.
GRUNDY PLUMBING, LLC
Request a quote
Reviewed in November 2023
Do not trust this guy Tim. I had him install a new water heater in my house in April 2023. Well when he changed the water heater he did not mentioned that he cut wires from the furnace that was connected to a sensor on the water heater. Come this end of October and when my furnace needed to be...
Dupage Home Services, Inc.
Request a quote
Reviewed in July 2017
They changed the oil. That is it. It was a free oil change. There was no charge. There were no problems.
BRIAN BEMIS AUTOMOTIVE GROUP
Request a quote
Reviewed in September 2016
They came out right away and looked at the existing air conditioner and also the furnace in order to give us an estimate on new units. The air was not working at this time and it was 90 outside with a heat index of 99 (in the house it was 80 degrees. They checked the air and confirmed that it...
Franzen Heating & Cooling
Request a quote
Reviewed in October 2013
He showed up 15 minutes early and started the outside inspection. He was very thorough, went through every part of the house, checked every window, cabinet and appliance. Went through the crawlspace to test the furnace and water heater. The price above also included a radon test and pest...
SHERLOCK HOMES INSPECTION
Request a quote
Reviewed in September 2013
It has both the car wash as well as oil change facilities. worth for the money spent.
Fuller's Car Wash of Aurora
Request a quote
Reviewed in May 2013
We prompt, professional, and informative. We had they installer comeback and replace some outlets and reroute some electrical so we could install a heater in the garage. The installer didnt and quot;padand quot; the time spent on the installation. Very Happy.
Masters Brothers
Request a quote
Reviewed in August 2012
This was for some rental properties we have. We will use them as our go to guys for heating and air conditioning. They are very professional. We made the appointment and they called on their way out. They were on time. They communicated well while everything was being done during the maintenance.
RCM Heating & Cooling
Request a quote

Find Heating oil pros in Centralia

Ambit Energy Independent Sales Consultant

No reviews yet

Ambit Energy Independent Sales Consultant

No reviews yet

19 years of experience

Alternative Gas & Electric Service Provider. Go on line at www.2FreeEng.com for your No Obligation Free Quote. No Cost to switch your service! Takes about 10 minutes and you could be saving and earning travel rewards and Free Energy options!

Fowler Heating & Cooling

4.64(

)

Fowler Heating & Cooling

4.64(

)

Customers say: Super punctual

Recommended by 90% of Angi customers

Fowler Heating and Cooling is Family owned and operated. Serving the Southern Illinois Area since 1979. Specializing in Heating, Air Conditioning, Furnaces, and Duct Cleaning. Our dedication and appreciation of our customers and their needs has resulted in over 70% of our business comes from referrals. We care about our quality of our work, and the relationships with our customers. ‎ [email protected].

Heating Oil questions, answered by experts

Leaks, poor airflow, reduced efficiency, and loop blockages are common problems requiring service.

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

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.

Your HVAC manufacturer will give you instructions on how often you should service your system. Have your unit professionally serviced at least once a year when in doubt.

Heat pump systems are different because they provide heating and cooling solutions for your home. In this case, you should have it serviced at least twice a year.

The homeowners guide to home care is here

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

See all articles

Alison Kasch
•
Oct 23, 2025Oct 23, 2025
How Much Does It Cost to Move an Electrical Panel? [2025 Data]
Your budget for moving an electrical panel depends on the type, labor, and more. Find out the average cost to move an electrical panel.
Lisa Gauthier Mitchison
•
Oct 21, 2025Oct 21, 2025
How Much Does It Cost to Replace Light Switches? [2025 Data]
Updating broken and outdated light switches isn't as tricky as you might think. We'll cover the considerations and cost to install a light switch in this guide.
Dan Simms
•
Oct 13, 2025Oct 13, 2025
2025 Cost to Install an Outlet in an Unfinished Basement
Need to run electricity to your basement? Learn about the cost to install an outlet in an unfinished basement and what factors affect your project cost.
Scott Dylan Westerlund
•
Oct 1, 2025Oct 1, 2025
What is Involved in Upgrading to a 200 Amp Service?
If your circuit breakers are shutting off, it may be time to upgrade your electrical panel and wiring to 200-amp service. Here's what's involved with upgrading to a 200-amp service so you can safely meet your home's electrical demand.
Gemma Johnstone
•
Oct 21, 2025Oct 21, 2025
Is a Dead Outlet Dangerous? What You Need to Know
A dead outlet is more than an annoyance. It can be a fire hazard, too. Here’s how to deal with a dead outlet to keep your home safe and prevent fire.
C.E. Larusso
•
Oct 2, 2025Oct 2, 2025
What Is an Electrical Inspection and When Do You Need One?
Learn about the red flags that signal it’s time to get an electrical inspection, what it will cover, and what issues can fail these important safety checks.