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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 December 06, 2025

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Avatar for Bright Path Electric

Bright Path Electric

New on AngiNew on Angi
•Approved Pro

Bright Path Electric

New on AngiNew on Angi
•Approved Pro
Free onsite estimate

Small buissness owner proudly serving the general area with 24/7 services for all your residential and commercial needs

Small buissness owner proudly serving the general area with 24/7 services for all your residential and commercial needs

Avatar for Mainstream Works

Mainstream Works

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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

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.

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

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.

For most systems, an annual HVAC system service is more than enough. Some homeowners prefer a twice-a-year visit to ensure the system is ready for the upcoming summer and winter seasons. If you need to call an HVAC pro more often than this, it may be time to check if your system is getting old enough for a replacement.

HVAC systems usually last between 10 and 30 years, with most having a lifespan of around 20 years. Factors that impact a unit’s life expectancy include which brand you choose, how often you use it, and how well you maintain it. To make sure yours lasts as long as possible, make sure to keep it clean and schedule an annual service with an HVAC technician.

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