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    Average homeowner rating
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Verified Reviews for Heating Oil Service pros in Mililani, HI

*The Angi rating for Heating Oil Service companies in Mililani, HI 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 Mililani, HI 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 24, 2025

Find Heating oil pros in Mililani

Avatar for Sepideh, Inc. DBA Rutan Refrigeration

Sepideh, Inc. DBA Rutan Refrigeration

2045 Lauwiliwili St, Suite 202
3.90(
10
)
•Approved Pro

Sepideh, Inc. DBA Rutan Refrigeration

2045 Lauwiliwili St, Suite 202
3.90(
10
)
•Approved Pro
35 years of experience
Free onsite estimate

Sepideh Inc DBA Rutan Refrigeration is 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.

"So we have a problem with this installation and this vendor is not cooperating to fix a problem with this brand new install. Not only did he not complete signoff which we needed for maintaining our warranty but the testing they did was designed to make us believe it was working when it was not. When we tried to get him out again he pretended to be super busy and all booked out when in reality he did not want to come out on a job he was not getting paid for because we already paid him! In good faith! Under the impression this was a reputable company that would back up their work knowing full well it was a brand new super expensive installation where most of the work was done by my contractor and all they had to do was connect the handlers, test the system and certify it. They would not certify it and made excuses but never returned. It never worked. We can not get them back out to fix it because they've already received payment. BEWARE OF THIS COMPANY. THEY ARE NOT REPUTABLE."

Carren S on October 2024

Sepideh Inc DBA Rutan Refrigeration is 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.

"So we have a problem with this installation and this vendor is not cooperating to fix a problem with this brand new install. Not only did he not complete signoff which we needed for maintaining our warranty but the testing they did was designed to make us believe it was working when it was not. When we tried to get him out again he pretended to be super busy and all booked out when in reality he did not want to come out on a job he was not getting paid for because we already paid him! In good faith! Under the impression this was a reputable company that would back up their work knowing full well it was a brand new super expensive installation where most of the work was done by my contractor and all they had to do was connect the handlers, test the system and certify it. They would not certify it and made excuses but never returned. It never worked. We can not get them back out to fix it because they've already received payment. BEWARE OF THIS COMPANY. THEY ARE NOT REPUTABLE."

Carren S on October 2024

Heating Oil questions, answered by experts

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

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.

Costs depend on system age, type, labor, and whether part replacements are necessary.

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

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