Top-rated heating oil pros.

Get matched with top heating oil pros in Marengo, IN

Enter your ZIP and get matched with up to 5 pros

Verified Reviews for Heating Oil Service pros in Marengo, IN

*The Angi rating for Heating Oil Service companies in Marengo, IN 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 Marengo, IN 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 14, 2025

Find Heating oil pros in Marengo

Avatar for Mainstream Works

Mainstream Works

No reviews yet

Mainstream Works

No reviews yet
14 years of experience

Mainstream Works will work as an independent contractor for all services performed. With over 30 years of experience in home building, remodeling, landscaping, and construction, Mainstream Works guarantees a successful project.

Mainstream Works will work as an independent contractor for all services performed. With over 30 years of experience in home building, remodeling, landscaping, and construction, Mainstream Works guarantees a successful project.

Heating Oil questions, answered by experts

A geothermal heat pump system will take about 10 years to pay for itself, and it has a life span of anywhere from about 25 to 50 years. Installing a geothermal heat pump will cost about $14,250 upfront, but it can reduce your energy bills by around 65% when compared to a conventional HVAC system.

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

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

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.

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"