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TRUSTED BY CORTLAND, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon40
    Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Cortland, IL

*The Angi rating for Heating Oil Service companies in Cortland, 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 Cortland, 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 15, 2025

Find Heating oil pros in Cortland

Avatar for Rest Assured HVAC, LLC

Rest Assured HVAC, LLC

4.85(
10
)
•Approved Pro

Rest Assured HVAC, LLC

4.85(
10
)
•Approved Pro
Customers say: Quality work
3 years of experience
Free onsite estimate

Rest Assured HVAC is open Monday - Friday 7am-6pm (regardless of hours listed on Angi/HomeAdvisor). We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. 24/7 Emergency Service available. Rest Assured HVAC 11N099 Muirhead Rd Elgin, IL 60124 (847) 224-2420 https://RestAssuredHVAC.com

"Very knowledgeable, very thorough."

Randy M on January 2024

Rest Assured HVAC is open Monday - Friday 7am-6pm (regardless of hours listed on Angi/HomeAdvisor). We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. 24/7 Emergency Service available. Rest Assured HVAC 11N099 Muirhead Rd Elgin, IL 60124 (847) 224-2420 https://RestAssuredHVAC.com

"Very knowledgeable, very thorough."

Randy M on January 2024

Avatar for Lifeline Plumbing Heating & Cooling

Lifeline Plumbing Heating & Cooling

4.65(
2,301
)
•Approved Pro

Lifeline Plumbing Heating & Cooling

4.65(
2,301
)
•Approved Pro
Customers say: Super punctual
486 local quotes requested
14 years of experience

Lifeline Plumbing, Heating and Cooling is the winner of the Super Service Award each year since 2011, when we started our profile on Angies List. If you are looking for professional Plumbing, Air Conditioning, Heating or any type of HVAC services in the greater Chicago-land, area make the call to Lifeline Plumbing, Heating and Cooling! We put our customers first with everything we do. That is why we offer a comprehensive satisfaction guarantee on all the work we do, and on all the products we install. If you would like to speak with one of our experts and get scheduled for service, call us at (847) 468-0069.

"All in all good service but price too high"

Marian J on May 2025

Lifeline Plumbing, Heating and Cooling is the winner of the Super Service Award each year since 2011, when we started our profile on Angies List. If you are looking for professional Plumbing, Air Conditioning, Heating or any type of HVAC services in the greater Chicago-land, area make the call to Lifeline Plumbing, Heating and Cooling! We put our customers first with everything we do. That is why we offer a comprehensive satisfaction guarantee on all the work we do, and on all the products we install. If you would like to speak with one of our experts and get scheduled for service, call us at (847) 468-0069.

"All in all good service but price too high"

Marian J on May 2025

Avatar for Improved Comfort Heating & Air Conditioning

Improved Comfort Heating & Air Conditioning

5.00(
7
)
•Approved Pro

Improved Comfort Heating & Air Conditioning

5.00(
7
)
•Approved Pro
141 local quotes requested
4 years of experience

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

"My case was an urgent one, and the Improved Comfort Heating & Air Conditioning team resolved the issue promptly and effectively that same day. It happened to be Halloween, a day when HOA staff usually leave early, yet their responsiveness was exceptional. When I called Mahdi to inform him of the situation, he arrived as quickly as possible despite the heavy traffic and repaired the heating system efficiently. Their office staff also kept me well informed about his schedule and handled everything with great professionalism. I truly appreciate their outstanding service and have added the company to my trusted list."

Chloe W on October 2025

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

"My case was an urgent one, and the Improved Comfort Heating & Air Conditioning team resolved the issue promptly and effectively that same day. It happened to be Halloween, a day when HOA staff usually leave early, yet their responsiveness was exceptional. When I called Mahdi to inform him of the situation, he arrived as quickly as possible despite the heavy traffic and repaired the heating system efficiently. Their office staff also kept me well informed about his schedule and handled everything with great professionalism. I truly appreciate their outstanding service and have added the company to my trusted list."

Chloe W on October 2025

North Pines Climate Control

5.00(
2
)

North Pines Climate Control

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We have been servicing our community and beyond for 14 years. We accept cash, major credit cards and checks. Billing is done on a pre arranged basis and requires a billing information sheet filled out in advance. We offer credit through GE Money Bank and can assist you in that process.

We have been servicing our community and beyond for 14 years. We accept cash, major credit cards and checks. Billing is done on a pre arranged basis and requires a billing information sheet filled out in advance. We offer credit through GE Money Bank and can assist you in that process.

Heating Oil questions, answered by experts

Most maintenance checks take 2-5 hours, though extensive repairs may take longer.

The most obvious downside is the high upfront cost of buying and installing one of these systems. Additionally, sometimes the system can take a longer time to heat than alternatives like a boiler. Also, if something goes wrong with the geothermal pump, repairs are often significantly more expensive than repairing traditional, above-ground heat pumps.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

You can expect a geothermal system to last for years. According to the Department of Energy, the underground infrastructure for the heat pumps lasts about 25 to 50 years, which includes the pipes buried in the soil. The actual heat pump itself has a life span of around 25 years.

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

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