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 Smithton, IL

Enter your ZIP and get matched with up to 5 pros

TRUSTED BY SMITHTON, IL HOMEOWNERS

4
Average homeowner rating
47
Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Smithton, IL

*The Angi rating for Heating Oil Service companies in Smithton, 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 Smithton, 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 October 18, 2025

Reviewed in December 2021
Helps improve heat in the house. Great windows.
Midtown Home Improvements, Inc (Atlanta)*
Request a quote
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.
Request a quote
Reviewed in August 2017
They checked my water heaters for a gas leak prior to doing the work and said I had a gas leak in both water heaters and provided an outrageous cost estimate to fix them. I called my home warranty and spoke with a plumbing company, without giving the name of Tiger plumbing he asked if they were...
Tiger Services, LLC
Request a quote
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
Request a quote
Reviewed in September 2013
Dealing with Rapid Lube is always a very pleasant experience. I've never had to wait more than 30 minutes for an oil change.
RAPID LUBE
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
Reviewed in August 2012
Great experience.I called Bland's at 9:00 am after discovering water around the base of my hot water heater. Service tech arrived at my house at 1:00pm and we decided it was time to replace 10 year old water heater. He called the office and they sent a new hot water heater within the hour. My...
Blands Plumbing Sewer & Water
Request a quote
Reviewed in October 2011
I had to call them for an emergency and they sent someone out right away. They are very knowledgeable and professional. They service both my heating and A/C. They have a good reputation in our area. My friends use them, as well.
HAASE HOME SUPPLY
Request a quote

Find Heating oil pros in Smithton

Middle Man Maintenance LLC

Middle Man Maintenance LLC

Customers say: Quick response

23 local quotes requested

1 years of experience

Middle Man Maintenance LLC is a small business that is dedicated to helping you out, at half the price of big business'. My services include: heating and cooling, painting, flooring, fixture install, outlets, gutter cleaning, gardening or horticultural, as well as deck repair.

"Taylor arrived when he said he would. Knowledgeable and fully prepared with all the tools and materials he needed for the job. Nice guy, easy to talk to and work with."

Randy C on September 2025

"Taylor arrived when he said he would. Knowledgeable and fully prepared with all the tools and materials he needed for the job. Nice guy, easy to talk to and work with."

Randy C on September 2025

Hoffmann Brothers

1025 Hanley Industrial Ct.

4.72(

)

•Approved Pro

Hoffmann Brothers

1025 Hanley Industrial Ct.

Customers say: True professional

Recommended by 97% of Angi customers

25 years of experience

The Heating and Air Conditioning Contractors at Hoffmann Brothers have provided the greater St. Louis area with reliable and professional services for more than 40 years. When you are in need of heating, ventilation, and air conditioning (HVAC) contractors for any of your heating or air conditioning repair or replacement service needs, call upon us at (314) 664-3011 or contact our team online.

"Good"

Andrew W on August 2024

"Good"

Andrew W on August 2024

Davis Heating and Cooling

103 Karl Pl

No reviews yet

Davis Heating and Cooling

103 Karl Pl

No reviews yet

17 years of experience

*We been in business since February 2008, five employees....over hundreds of customers on both side of the river, Missouri and Illinois. *We also do sub-contracting work. *We accept cash, checks and credit card *Special offers and promotion for new or existing customers *we provide financing options for customers

CRAIG-AIR HOME COMFORT SOLUTIONS

106 W HIGHWAY 50

5.00(

)

CRAIG-AIR HOME COMFORT SOLUTIONS

106 W HIGHWAY 50

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

Craig-Air Home Comfort Solutions offers all services related to you home comfort needs. We specialize in HVAC and remodeling. We take pride in using high quality materials and workmanship.

Scott Lee Heating Company

11010 Gravois Industrial Ct.

4.90(

115

)

Scott Lee Heating Company

11010 Gravois Industrial Ct.

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

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.

DIY maintenance like filter cleaning is possible, but professional servicing ensures proper pressure, refrigerant levels, and loop performance.

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

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.

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.

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
•
Sep 25, 2025Sep 25, 2025
How Much Does It Cost to Rewire a House? [2025 Data]
Rewiring a house can be a complex project but don’t let it catch you off guard. Read this to plan ahead and discover the cost to rewire a house.
Tyler Lacoma
•
Jun 5, 2025Jun 5, 2025
How Much Does It Cost to Install a Subpanel? [2025 Data]
Electrical subpanels allow you to use appliances and electronics safely. This cost guide explains the important factors to consider when installing a subpanel.
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.
Tyler Lacoma
•
Oct 1, 2025Oct 1, 2025
300-Amp Service: Does Your Home Need It?
Do you need to upgrade to 300-amp service? Here’s how to determine your house’s electrical needs.
C.E. Larusso
•
Oct 1, 2025Oct 1, 2025
Breaker Box Wiring: Which Wires Are Neutral and Ground?
It can be difficult to tell where the neutral or ground wires are located in your breaker box. Here’s what you need to know about your breaker box wiring.
Josh Maday
•
Oct 3, 2025Oct 3, 2025
Federal Pacific Breakers: What You Need to Know
What’s wrong with Federal Pacific breaker panels? Get the details about why FPE breakers are no longer produced and what dangers they pose to your home.