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 HERMANTOWN, MN HOMEOWNERS

4.7
Average homeowner rating
56
Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Hermantown, MN

*The Angi rating for Heating Oil Service companies in Hermantown, MN 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 Hermantown, MN 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 19, 2025

Reviewed in March 2017
Very quick, only about 90 minutes and the heater was running. Worked fast and the quality of the work was phenomenal
DULUTH ELECTRICAL CONTRACTING INC
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Reviewed in January 2017
Price was several hundred dollars, I don’t know, the price depends on the cost of oil at the time. We have had them for years. They are a responsible company, pleasant to do business with. We have always been pleased with what we have worked on and deliveries, and working with them and calling...
COMO OIL & PROPANE CO
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Reviewed in April 2015
Aric was profesional, and thourogh. I will call this company again for any plumbing, heating and air conditioner problems.
Northland Heating and Cooling
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Reviewed in February 2014
When they came into install they did not have permit or know what regulations were for condos. The heat pump did not work right in the summer when installed I had to turn it off completely to make the air conditioning come on. Each time they would come out to fix it they say it was the wrong...
Metro Heating & Cooling
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Reviewed in September 2013
Best price in town for oil change. Usually only $15-20. Quick service although sometimes challenging to schedule appt.
KIA OF DULUTH
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Reviewed in April 2013
They are pretty normal standard care. I don't have anything to complain about. They are polite and efficient. They get the job done. It took a little longer than I thought for the oil change, but other than that it was fine. The price was reasonable.
MIDAS AUTO SVC EXPERTS
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Reviewed in March 2013
Peterson heating is wonderful. We found him in the phone book after ICO couldn't make their scheduled appointment in early October and couldn't fit us in until late December. He was the only one who could come and service our heaters in a reasonable time frame and on top of it had the best...
Kyle Peterson Heating LLC
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Reviewed in September 2010
We were looking to install Tankless water heater. Plumber sent was punctual and courteous, but it was pretty obvious that he had not installed very many (kept calling co-worker to get detailed answers to our questions). We did not end up using because we were looking for someone that had more...
A G O'Brien Plumbing and Heating CO
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Reviewed in August 2005
GOOD EXPERIENCE. LOTS OF AGGRESSIVE SALESMEN IN THE HEATING & A/C BUSINESS. SCOTT OF GV WAS VERY GOOD AND HELPFUL. OUR AC FAILED PRIOR TO THE INSTALL DATE AND GV HEATING CAME AND REPLACED THE FREON TO GET US THROUGH UNTIL THE NEW AC COULD BE INSTALLED. HEPA FILTER WAS LARGER THAN I EXPECTED...
Golden Valley Heating & Air
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Find Heating oil pros in Hermantown

Northstar Mechanical Services, LLC

Northstar Mechanical Services, LLC

Customers say: Quality work

Recommended by 95% of Angi customers

33 local quotes requested

When you're looking for a heating, air conditioning or ventilating solution, be sure to call NorthStar Services. We offer full lines of conventional equipment as well as the latest state-of-the-art high tech systems, controls and equipment. Do you find yourself in need of emergency service late at night or on a weekend or holiday? Call NorthStar Services! We offer flexible financing and accept major credit cards! Our pricing is always straightforward and guaranteed not to go up after your initial quote. Call us today and let us earn your business!

"Excellent!"

Keith P on July 2025

"Excellent!"

Keith P on July 2025

Warwas Heating & Cooling, LLC

Warwas Heating & Cooling, LLC

Customers say: Quick response

20 local quotes requested

3 years of experience

Warwas Heating & Cooling LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Very professional and courteous, Very knowledgeable about their job. Well done. Would recommend!!!!!"

John L on June 2024

"Very professional and courteous, Very knowledgeable about their job. Well done. Would recommend!!!!!"

John L on June 2024

Como Oil & Propane is a provider of residential, commercial, and Industrial heating fuels. We have nine offices throughout NE Minnesota and NW Wisconsin, and we dleiver heating oil and propane to over 22,000 customers. We also sell furnaces, water heaters, AC and grills. Cook & Douglas counties available.

"My 94 yo mother has been a customer of Como Oil for decades. She even pre pays for every home fuel oil fill. On 6-27-23 Como greatly overfilled the tank which is in a finished basement Where we live. Grade 2 Fuel oil spilled outside of the home and onto the foundation, and then it flooded the basement. The fumes were so intense we became very sick. I spoke with the Hibbing MN manager, who could have cared less what my elderly Mom was going through with the fuel oil spill inside her home!!! He told me it wasn’t his problem since it was inside the house. Don’t EVER do business with this company. We had a credit of over $3000 dollars at Como and they said it would take 6-8 weeks to CUT a refund check. Come on? What a pathetic response. They caused the toxic spill, my 94 yo mother did not cause it. They took advantage of her. We want everyone to know how little they care about their long term customers, and how they placed us at a high health and safety risk. The gas hot water tank pilot light was only 3 feet away from the liquid spilled fuel oil. I did not want to give Como even a 1 Star rating, they deserve a ZERO."

Diane A on June 2023

"My 94 yo mother has been a customer of Como Oil for decades. She even pre pays for every home fuel oil fill. On 6-27-23 Como greatly overfilled the tank which is in a finished basement Where we live. Grade 2 Fuel oil spilled outside of the home and onto the foundation, and then it flooded the basement. The fumes were so intense we became very sick. I spoke with the Hibbing MN manager, who could have cared less what my elderly Mom was going through with the fuel oil spill inside her home!!! He told me it wasn’t his problem since it was inside the house. Don’t EVER do business with this company. We had a credit of over $3000 dollars at Como and they said it would take 6-8 weeks to CUT a refund check. Come on? What a pathetic response. They caused the toxic spill, my 94 yo mother did not cause it. They took advantage of her. We want everyone to know how little they care about their long term customers, and how they placed us at a high health and safety risk. The gas hot water tank pilot light was only 3 feet away from the liquid spilled fuel oil. I did not want to give Como even a 1 Star rating, they deserve a ZERO."

Diane A on June 2023

Heating Oil questions, answered by experts

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.

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.

Service costs range from $200 to $1,500, depending on maintenance needs, system age, and labor.

An evaporator or swamp cooler is a common alternative for small spaces. These coolers blow moist air into a space to help cool it down. They are more affordable than misters and use much less water. However, coolers will not have the same cooling effect as misters, cannot help plants survive the heat, and only reach a small area.

Yes, including optimizing settings and suggesting upgrades if needed.

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