How often do I need to service my HVAC system?

• <div><p>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). </p><p>Regular HVAC services will keep the system working as efficiently as possible, saving you money on utilities and larger repairs. <a href="https://www.angi.com/articles/ac-service-cost.htm">HVAC maintenance costs</a> around $250 per visit, while bigger repairs from forgotten upkeep could cost thousands.</p></div>

Do you need backup heat with geothermal?

• <div><p>If a geothermal heat pump is installed correctly, then you shouldn’t have to worry about having a backup heat source such as a <a href="https://www.angi.com/articles/furnace-and-heating-basics.htm">furnace</a> 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.</p></div>

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TRUSTED BY GREENFIELD, CA HOMEOWNERS

4.5
Average homeowner rating
34
Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Greenfield, CA

*The Angi rating for Heating Oil Service companies in Greenfield, CA 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 Greenfield, CA 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 2016
Horrible job! The Guy dented the Water Heater and installed the Filteration System wrong. They also charge outrageous prices and have sub standard Plumbers.
RELIABLE PLUMBING & HEATING SERVICES
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Reviewed in March 2014
Despite the fact that Star-tune doesn't do smog tests at their shop - they had it done for me along with an oil change that I requested and assessment of an oil leak. They did not do a lot to my car because it was not needed at this time... and that is one of the things I liked about Star-Tune -...
Star-Tune
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Reviewed in September 2013
The reason I put down that the oil change was so cheap is because they have a service club card for around $100 you get 5 oil changes and a lot of other benefits. Wayside is like taking your car to a trusted family member. The front office is wonderful. The car is ready when they say it will be....
WAYSIDE GARAGE
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Reviewed in September 2013
It went well. Days later I noticed a slight oil leak. This was NOT the fault of DMAR. The factory plug washer was worn out. I took the car in, they promptly diagnosed the problem and replaced the washer with a new quality washer AND noted and pointed out another leak in the steering armature....
Del Monte Auto Repair
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Reviewed in May 2013
Great! They inspected the system and determined it was not a problem with our radient heat but a problem with the water heater which told us to call the plumber.
Heritage Plumbing & Heating
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Reviewed in January 2013
The water heater was replaced satisfactorily. In the process, the installation required replacing the platform to conform with current standards for propane fueled heaters. This also required altering the plumbing attached to the water heater and the recirculating pump. The plumber was very...
A & R Plumbing Inc
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Reviewed in December 2008
I was having repeated problems with my pressure relief valve on my relatively new water heater. A handyman told me I probably needed a pressure regulator. New-Pipe confirmed the diagnosis and did the work pleasantly and professionally. They even replaced the worn pressure relief valve on the...
New-Pipe Plumbing & Rooter
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Find Heating oil pros in Greenfield

Paso Robles Heating and Air

4.84(

)

•Approved Pro

Paso Robles Heating and Air

4.84(

)

•Approved Pro

Customers say: True professional

Recommended by 96% of Angi customers

63 local quotes requested

When it comes to indoor comfort, you and your family deserve only the best. But you also want a quality heating and air conditioning system that provides value as well as comfort. This is where Paso Robles Heating & Air comes in …See website for additional service areas. License number - 481815.

"The technicians arrived on time .I explained what was happening. Told me what he believed was going on. He did not remove or examine anything closely. He proceeded to tell me what it would cost would be before he did any work. The cost was highway robbery for the type of work it would take to repair. I will never call this company for any of repairs or services"

Jacqueline S on June 2025

"The technicians arrived on time .I explained what was happening. Told me what he believed was going on. He did not remove or examine anything closely. He proceeded to tell me what it would cost would be before he did any work. The cost was highway robbery for the type of work it would take to repair. I will never call this company for any of repairs or services"

Jacqueline S on June 2025

All American Pressure Cleaning

5.00(

)

•Approved Pro

All American Pressure Cleaning

5.00(

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

183 local quotes requested

We offer a variety of services you may need from Pressure washing, gutter cleaning, roof washing, Solar panel cleaning and many around the home needs.

"Great job. Communication was excellent. I received an estimate immediately. I was reminded the night before of the appointment. I had a phone call the day of regarding the arrival time. Would hire again."

Valarie W on January 2025

We offer a variety of services you may need from Pressure washing, gutter cleaning, roof washing, Solar panel cleaning and many around the home needs.

"Great job. Communication was excellent. I received an estimate immediately. I was reminded the night before of the appointment. I had a phone call the day of regarding the arrival time. Would hire again."

Valarie W on January 2025

Galvans Maintenance and Hauling

5.00(

)

•Approved Pro

Galvans Maintenance and Hauling

Customers say: Quick response

53 local quotes requested

11 years of experience

Galvans Maintenance and Hauling is here to help with your project! Give us a call or click to request a quote today!

"We have used Miguel and team for several projects both big and small. He is always professional, keeps his commitments and does quality work! Very dependable."

Kamal J on November 2025

Galvans Maintenance and Hauling is here to help with your project! Give us a call or click to request a quote today!

"We have used Miguel and team for several projects both big and small. He is always professional, keeps his commitments and does quality work! Very dependable."

Kamal J on November 2025

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.

The most obvious downside is the high upfront cost of buying and installing one of these systems. Additionally, sometimes the system can take a longer time to heat than alternatives like a boiler. Also, if something goes wrong with the geothermal pump, repairs are often significantly more expensive than repairing traditional, above-ground heat pumps.

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.

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.

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

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