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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon85
    Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Holly, CO

*The Angi rating for Heating Oil Service companies in Holly, CO 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 Holly, CO 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 Holly

DTP Mechanical LLC

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•Approved Pro

DTP Mechanical LLC

New on AngiNew on Angi
•Approved Pro
3 years of experience
Free onsite estimate

With several years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

With several years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

Hollmer-Davis Plumbing and Heating Inc

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Hollmer-Davis Plumbing and Heating Inc

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Hollmer-Davis Plumbing and Heating Inc has been providing the highest quality plumbing and heating service in the area. We handle everything from leaky faucets, sewer line repair, and fixture installation to re-piping. There are hundreds of less-than-reputable “plumbers” out there who’ll take your money and leave you with plumbing worse than you started with, or even good plumbers who will take advantage of you knowing that you’re in a tight spot. Here we never sacrifice quality for cost!

Hollmer-Davis Plumbing and Heating Inc has been providing the highest quality plumbing and heating service in the area. We handle everything from leaky faucets, sewer line repair, and fixture installation to re-piping. There are hundreds of less-than-reputable “plumbers” out there who’ll take your money and leave you with plumbing worse than you started with, or even good plumbers who will take advantage of you knowing that you’re in a tight spot. Here we never sacrifice quality for cost!

Heating Oil questions, answered by experts

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

There are several common types of HVAC systems that you may have, including split systems, hybrid HVAC, duct-free systems, packaged heating and air, geothermal heating, or even portable units for heating or cooling. If you aren’t sure which type is in your home or are looking to install something different, you should consult an HVAC pro to determine which option is right for your heating and cooling needs.

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.

If a geothermal heat pump is installed correctly, then you shouldn’t have to worry about having a backup heat source such as a furnace or oil boiler. However, there are geothermal systems installed that include a backup in case the heat pump fails due to extreme cold. This is simply a backup heat pump you’ll likely never need and not an alternative heat source.

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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