How long does a good HVAC last?

• <div><p><a href="https://www.angi.com/articles/how-long-havc-last.htm">HVAC systems usually last between 10 and 30 years</a>, 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.</p></div>

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Q: Are there energy-efficient measures taken during these services?

• <div><p>Yes, including optimizing settings and suggesting upgrades if needed.</p></div>

Q: How long does geothermal servicing take?

• <div><p>Most maintenance checks take 2-5 hours, though extensive repairs may take longer.</p></div>

Q: What are the benefits of geothermal heating and cooling?

• <div><p>Geothermal systems provide energy efficiency, lower utility bills, and long-term sustainability with minimal environmental impact.</p></div>

Q: What are alternatives to a misting system?

• <div><p>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.</p></div>

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Verified Reviews for Heating Oil Service pros in Harlem, MT

*The Angi rating for Heating Oil Service companies in Harlem, MT 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 Harlem, MT 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 24, 2025

Reviewed in November 2024
We had previously had four windows and one siding door installed in the summer and were happy with the process. We knew when the company started making entry doors that we would purchase a front entry door and kitchen door to replace older doors that had gaps around the frame where cold and heat...
Renewal by Andersen of Montana
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Reviewed in April 2023
Highly skilled, professional plumber. Treated my wife and I with the upmost dignity and respect. Tobin did a major repair of our homes boiler and heating system. System needed major repair due to damage from frozen pipes. We would highly recommend Bridger Creek Plumbing.
Bridger Creek Plumbing, LLC
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Reviewed in February 2014
Installed heating system. Air conditioning unit will be installed this spring. So far they have been wonderful to work with. Crew was professional and prompt. We love the heating system. Will update when we have air-conditioning unit installed.
Comfort Heating & Air Conditioning LLC
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Reviewed in February 2014
At first, it was looking pretty good. The materials were good quality. However, the clean-up was poor, with nails, and paper trash left on the ground, and strings left hanging from the roof. The furnace in the attic was not covered before the work and ended up with lots of sawdust and other...
Sprague Construction Roofing, LLC
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Reviewed in September 2013
He arrived after our agreed time however called before and explained that he'd be late. This clearly demonstrates that he respects my time and me. He carefully placed drop cloths around my woodstove, then checked around the pipe for safety issues. He noted and, using some fiberglass...
Buffalo Chimney & Stove Installation
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Find Heating oil pros in Harlem

Timberline Heating & Cooling

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Timberline Heating & Cooling

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With over 50 years of family ownership and experience serving both residential and commercial businesses in Billings and surrounding areas. Matt has followed his grandfather for 25 years and has recently taken ownership to follow in the footsteps of providing outstanding service with the same integrity as his grandfather. Offering 24 Hour Emergency Service Matt is there to help you. He is able to help you with sales of products for remodels, new construction or service for all brands. No job is too big or small and he can take care of that custom sheet metal work as well. Dare to compare and call Matt now.

Heating Oil questions, answered by experts

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.

Yes, including optimizing settings and suggesting upgrades if needed.

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

Geothermal systems provide energy efficiency, lower utility bills, and long-term sustainability with minimal environmental impact.

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.

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