Get matched with top heating oil pros in Upper Lake, CA

Q: How much does geothermal system servicing cost?

• <div><p>Service costs range from $200 to $1,500, depending on maintenance needs, system age, and labor.</p></div>

Q: Do NATE-certified technicians cost more?

• <div><p>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 <a href="https://www.angi.com/nearme/hvac-companies/">local HVAC company to hire</a>, it never hurts to ask about NATE certifications. </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 types of heat pumps are there?

• <div><p>There are three main types of heat pumps. An air-source heat pump system is the most common and has two parts&mdash;an indoor air handler unit and an outdoor heat pump unit. A ductless heat pump system functions similarly to an air-source heat pump system but doesn&rsquo;t need ductwork to distribute the air. A geothermal heat pump system pulls heat from the ground to help heat your home. </p></div>

Q: What factors affect servicing costs?

• <div><p>Costs depend on system age, type, labor, and whether part replacements are necessary.</p></div>

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Verified Reviews for Heating Oil Service pros in Upper Lake, CA

*The Angi rating for Heating Oil Service companies in Upper Lake, 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 Upper Lake, 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 October 23, 2025

Reviewed in February 2019
Eric was very professional and completed the job in a timely manor. Installed a new water heater in a rental we have in Fontana. he left the job very clean and took the old water heater.
EC Plumbing
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Reviewed in May 2015
It was done as promised.I had checked out the different brands and this band has a good rating. What sold them is it was the best price for heating with air. We were replacing a propane heater and the air was basicly a bonus.
Diversified Heating & Cooling
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Reviewed in December 2014
didn't work, at first . . had to come out again . . finally got heater to work . . said it needed other parts . . bought and installed.
HVAC THERAPY
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Reviewed in July 2014
My old garbage disposal wasn't working any longer so I ordered a new one and needed a plumber to install it. The plumber was able to fix the old disposal but I decided to have him replace it anyway. Only took about an hour. Based on my experience, I would definitely recommend Dale Plumbing &...
Dale Plumbing & Heating Inc
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Reviewed in January 2014
I've had both our vehicles serviced by these guys for a couple of years; everything from routine oil changes and alignments to suspension work. Also purchased tires for both vehicles from them. Their prices are fair and sometimes better than other facilities (including on line for the tires),...
RON'S TIRES PRO
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Reviewed in March 2013
I've worked with Gene and Randee Nelson for the past 3 years. I built a new home in 2008, and since then my AC unit has taken multiple electricity hits (we have bad power in 29 Palms). In August 2012, we lost the condenser, and I filed a claim with my home warranty company, they sent out someone...
Nelson Heating & Air
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Reviewed in September 2011
Juan was incredibly helpful and attentive. He made multiple visits to our office between evaluating the problem and installing the new part. He only charged us for three hours even though he had invested more time here, even time after hours (for which he didn't charge extra). We were...
JCL & SONS HVAC, INC.
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Reviewed in August 2011
I've been using Barto for over 25 years. They were very quick to make an easy sale and sell me the 5 year warranty program. It took them 5 days to arrange delivery, which I can understand that it can take some time. I had to pay extra for the mount that the unit slides into and for the...
BARTO APPLIANCE
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Find Heating oil pros in Upper Lake

Crystal Air

1761 Main St

4.00(

)

Crystal Air

1761 Main St

4.00(

)

Customers say: Quality work

Recommended by 100% of Angi customers

Additional emails - [email protected], Additional address - Crystal Air, PO Box 1501 Weaverville, CA 96093.

Stout's Heating And A-C

840 Piner Rd

4.80(

)

Stout's Heating And A-C

840 Piner Rd

4.80(

)

Customers say: Quick response

Recommended by 100% of Angi customers

*Family Owned and Operated

Performance Mechanical Heating & Cooling

14729 Lakeshore Drive

5.00(

)

Performance Mechanical Heating & Cooling

14729 Lakeshore Drive

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

We are a small locally owned business committed to providing high quality service at an affordable price. Free estimates for installations!

"Absolutely the best and follow up customer service is exceptional"

Esther S on April 2023

We are a small locally owned business committed to providing high quality service at an affordable price. Free estimates for installations!

"Absolutely the best and follow up customer service is exceptional"

Esther S on April 2023

Heating Oil questions, answered by experts

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

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.

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

There are three main types of heat pumps. An air-source heat pump system is the most common and has two parts—an indoor air handler unit and an outdoor heat pump unit. A ductless heat pump system functions similarly to an air-source heat pump system but doesn’t need ductwork to distribute the air. A geothermal heat pump system pulls heat from the ground to help heat your home.

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

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