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*The Angi rating for Heating Oil Service companies in Washington, MO 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 Washington, MO 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 18, 2025

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Avatar for Schraer Heating and Air Conditioning

Schraer Heating and Air Conditioning

504 W Booneslick Rd
5.00(
1
)
•Approved Pro

Schraer Heating and Air Conditioning

504 W Booneslick Rd
5.00(
1
)
•Approved Pro
67 local quotes requested
79 years of experience

Trusted since 1946, Schraer Air Experts offers top-notch heating, cooling, air quality and hot water services in Warren, Montgomery, St Charles and Lincoln County MO.

Trusted since 1946, Schraer Air Experts offers top-notch heating, cooling, air quality and hot water services in Warren, Montgomery, St Charles and Lincoln County MO.

Avatar for All Climate Mechanical

All Climate Mechanical

2040 Meramec St
No reviews yet

All Climate Mechanical

2040 Meramec St
No reviews yet

We are a heating and cooling, commercial refrigeration, and commercial kitchen equipment service contractor offering services to residents and businesses of Franklin County, St. Louis County and surrounding areas.

We are a heating and cooling, commercial refrigeration, and commercial kitchen equipment service contractor offering services to residents and businesses of Franklin County, St. Louis County and surrounding areas.

Avatar for All Around Heating and Cooling, LLC

All Around Heating and Cooling, LLC

P.O. Box 555
5.00(
2
)

All Around Heating and Cooling, LLC

P.O. Box 555
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Here to provide professional services to public services, residential or commercial applications. Driven to provide excellent quality service with superior satisfaction. Find us at (www.facebook.com/allaroundheatingcooling) to see products and other services and be apart of a growing customer database to receive discounts, promotional offers and maintenance information for homeowners.

Here to provide professional services to public services, residential or commercial applications. Driven to provide excellent quality service with superior satisfaction. Find us at (www.facebook.com/allaroundheatingcooling) to see products and other services and be apart of a growing customer database to receive discounts, promotional offers and maintenance information for homeowners.

Heating Oil questions, answered by experts

NATE-certified technicians may charge slightly higher service fees compared to non-certified technicians. This is because NATE certification signifies a higher level of expertise and professionalism, often leading to more efficient and effective HVAC repairs and installations. While the upfront cost may be marginally higher, NATE-certified technicians can potentially save you money in the long run by reducing energy consumption, preventing frequent breakdowns, and extending the life span of your HVAC system. When looking for a local HVAC company to hire, it never hurts to ask about NATE certifications.

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

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.

Service costs range from $200 to $1,500, depending on maintenance needs, system age, and labor.

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.

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