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>

Get matched with top heating oil pros in Twain Harte, CA

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: How long does it take for geothermal to pay for itself?

• <div><p>A geothermal heat pump system will take about <b>10 years</b> to pay for itself, and it has a life span of anywhere from about 25 to 50 years. Installing a geothermal heat pump will cost about $14,250 upfront, but it can reduce your energy bills by around 65% when compared to a conventional HVAC system. </p></div>

Q: How long does geothermal servicing take?

• <div><p>Most maintenance checks take 2-5 hours, though extensive repairs may take longer.</p></div>

Q: Are there downsides to using a geothermal heat pump for floor heating?

• <div><p>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. </p></div>

Enter your ZIP and get matched with up to 5 pros

Verified Reviews for Heating Oil Service pros in Twain Harte, CA

*The Angi rating for Heating Oil Service companies in Twain Harte, 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 Twain Harte, 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 December 02, 2025

Reviewed in April 2025
Rose Plumbing did an excellent job replacing our water heater. They responded the same day the job came in and were very professional. We utilized them for a circulation pump replacement under our kitchen sink as well, and again found them responsive, professional and friendly. I would highly...
A Rose Plumbing Inc
Request a quote
Reviewed in March 2016
Went without any major problems. Heater was attached to a water soft machine, one of the connectors broke and they bdid not have one, had to order and return to fix. This did not cause any problem, a bypass was made, and the heater was able to be used.
Heart Plumbing
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
Reviewed in February 2013
The service department / mechanic did a thorough job of inspecting the car, though it only had 1400 miles on it. The oil change and filter replacement was also done well. There appeared to have been no oil spilled on any of the engine components or exhaust manifold (often a problem which results...
Sonora Subaru Service
Request a quote
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.
Request a quote
Reviewed in May 2011
The work was great and they were really great. They did the work when they said they would. The price was a little high but it was worth it. We are satisfied with the work and have no complaints. They were really great about working with us and with our little boy being around. They also...
Renewal by Andersen / Southard Corp
Request a quote

Find Heating oil pros in Twain Harte

Performance Based Heating & Air

5.00(

)

•Approved Pro

Performance Based Heating & Air

5.00(

)

•Approved Pro

Customers say: Quick response

11 years of experience

Free onsite estimate

Performance Based Heating & Air is your number one choice for all your HVAC needs. Our commitment to quality is second to none, and we guarantee your complete satisfaction. We enjoy creating long term relationships with each of our clients, and we look forward to working with you!

"Company is legit, I called and they came quick and even showed me a couple things. They filled the refrigerant on my AC. I'll definitely use them again."

Javier A on July 2023

"Company is legit, I called and they came quick and even showed me a couple things. They filled the refrigerant on my AC. I'll definitely use them again."

Javier A on July 2023

Aguilar Construction

5.00(

)

•Approved Pro

Aguilar Construction

Customers say: Quick response

234 local quotes requested

9 years of experience

Im Miguel owner of Aguilar Construction. We are communicating company and very professional on all construction trades. Dedicated to excellence with every job we undertake. Our commitment to quality craftsmanship and outstanding customer service sets us apart. Browse our services and get in touch today to schedule your free estimate. Experience the superior service you deserve!

"Prompt and efficient did an excellent job job!"

Sharon M on November 2025

"Prompt and efficient did an excellent job job!"

Sharon M on November 2025

Crystal Air

4.00(

)

Crystal Air

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.

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.

A geothermal heat pump system will take about 10 years to pay for itself, and it has a life span of anywhere from about 25 to 50 years. Installing a geothermal heat pump will cost about $14,250 upfront, but it can reduce your energy bills by around 65% when compared to a conventional HVAC system.

Most maintenance checks take 2-5 hours, though extensive repairs may take longer.

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.

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 homeowners guide to home care is here

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Mike Miller
•
Nov 26, 2025Nov 26, 2025
How Much Does It Cost to Install an Outlet? [2025 Data]
The average cost to install an electrical outlet is $133 to $296 each. This guide explains what factors impact the total cost of installing an outlet.
Angi
•
Nov 14, 2025Nov 14, 2025
How Much Does Attic Fan Repair Cost? [2026 Data]
Get a clear estimate for attic fan repair costs to learn what impacts pricing, how to save, and whether to repair or replace your attic fan.
Angi
•
Oct 15, 2025Oct 15, 2025
How Much Does It Cost to Replace an Outlet? [2025 Data]
Discover the cost to replace outlets in your home. Learn about price factors, labor rates, and tips to save on your outlet replacement project.
Lawrence Bonk
•
Oct 20, 2025Oct 20, 2025
Outlets Not Working in One Room? Here’s How to Solve
Are there outlets not working in one room in particular? Learn what could be causing the issue and how to solve the problem.
Alison Kasch
•
Oct 20, 2025Oct 20, 2025
50-Amp Wire Size: How to Choose the Right Wiring
Planning out a 50-amp circuit? Selecting the right wire size is crucial. Find out how to determine the right 50-amp wire size.
Derek Rose
•
Oct 20, 2025Oct 20, 2025
12 Electrical Outlet Types You Can Find in Your Home
Your home might have a variety of electrical outlets, depending on how old the structure is and what type of appliances you use. Learn the different types of outlets, how they work, and how you use them.