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 Waimanalo, HI

Q: Do services include eco-friendly options?

• <div><p>Yes, many providers offer organic or eco-friendly treatments. Confirm availability with your contractor.</p></div>

Q: What are common geothermal system issues?

• <div><p>Leaks, poor airflow, reduced efficiency, and loop blockages are common problems requiring service.</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 type of HVAC system do I have?

• <div><p>There are several <a href="https://www.angi.com/articles/common-types-of-HVAC-systems.htm">common types of HVAC systems</a> 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&rsquo;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.</p></div>

Enter your ZIP and get matched with up to 5 pros

Verified Reviews for Heating Oil Service pros in Waimanalo, HI

*The Angi rating for Heating Oil Service companies in Waimanalo, HI 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 Waimanalo, HI 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 16, 2025

Reviewed in March 2024
We were very impressed with their prompt response, their quick turnaround, and getting us a quote, and then theyâ re ability to install our water heater very soon after. Their crew that installed the water heater was very professional, kind, and did a great job cleaning up after the install....
Superior Plumbing Service LLC
Request a quote
Reviewed in May 2020
Excellent. Wanted an inspection to test for noisy pipes. They reduced water pressure and also checked the expansion tank on the water heater. Problems fixed in a few minutes.
Joseph plumbing & drain
Request a quote
Reviewed in December 2015
Our water heater pressure relief valve was leaking and flooded the laundry room and part of the garage. We called A-1 Plumbing in the morning and the plumber arrived that afternoon. Kevin drained the water heater and replaced the pressure relief valve. When he tested the new valve, it also...
A-1 Budget Plumbing
Request a quote
Reviewed in June 2014
He replaced the garage door opener, oiled and tightened bolts on the door. It works smoothly and quietly now. We are pleased with the work.
Alliance Overhead Doors
Request a quote
Reviewed in May 2014
He's great but his assistant is horrible - messed up so he had to come back. Not to mention the assistant spilled machine oil all over our lawn and killed a large patch of mature ground cover/grass. Though he fixed the assistant's mistake, we won't be calling them back because of the negative...
All In One Home Repairs
Request a quote
Reviewed in March 2014
Coastal tanks met all agreement discussions perfectly. Due to busy schedules, most details were discussed over the phone. His crew arrived on time. Got to work. And, finished on time. They did an excellent clean-up effort. A hard working crew. We switched from heating oil to natural gas....
Coastal Tanks, Ltd,
Request a quote
Reviewed in November 2013
JR's an excellent small business. Very attentive and provides better estimates than the larger companies. He has "Andy," who's superb at ducting work in an older house. Also, his piping crew remedied unique older house issues without any commotion. Good guys working on this team. If you...
Newbern Mechanical Company Inc
Request a quote
Reviewed in November 2010
Sid came to my house early in the morning to check what type of heater I needed. He came back that same afternoon and installed the water heater in a timely manner. Very friendly and answered all my concerns. He called the next day to check if everything was o.k. had a leak in the washroom pipes...
R A L Plumbing
Request a quote
Reviewed in October 2007
We took a car to them for inspection before purchase and they found oil leaks and saved us from purchasing that car. Scottie is just a gem! He's very bright and on top of things. He's a fast-thinker and is super to work with. He even took me back into the garage to show me what was going on with...
SCOTTY'S AUTOMOTIVE
Request a quote

Find Heating oil pros in Waimanalo

Continental Mechanical Services LLC

New on AngiNew on Angi

•Approved Pro

Continental Mechanical Services LLC

New on AngiNew on Angi

•Approved Pro

252 local quotes requested

10 years of experience

With decades of experience in commercial and industrial projects and services, our company is proud to extend our top-tier mechanical services to residential clients. We specialize in plumbing solutions and backflow inspections as well as air conditioning installation, maintenance, and repair. Our expertise also encompasses HVAC controls, fire protection systems, commercial refrigeration systems and sheet metal work, ensuring comprehensive solutions for your home's needs. Our dedicated team is committed to delivering professional, efficient, and reliable service to enhance the comfort and safety of your residence.?

Handymen Oahu

5.00(

)

•Approved Pro

Handymen Oahu

Customers say: Quick response

Recommended by 100% of Angi customers

196 local quotes requested

At Handymen Oahu we are experienced professionals capable of tackling repairs and renovations over a wide variety of trades. As Hawaii's hardest workers there is nothing more important to us than doing a good job, on time and with a positive attitude. We have over 5 years of experience supporting Hawaii's homeowners and are excited to work with you on your next project.

"Replacement air conditioners in guest rooms. Very thorough from start to completion. Removed all trash and older equipment. I’m looking forward to seeing more projects in the coming weeks! Reasonable prices and clean. I have been through a lot of negative experiences and this has been a huge relief in restoring confidence and trust again!"

Jeff C on October 2025

"Replacement air conditioners in guest rooms. Very thorough from start to completion. Removed all trash and older equipment. I’m looking forward to seeing more projects in the coming weeks! Reasonable prices and clean. I have been through a lot of negative experiences and this has been a huge relief in restoring confidence and trust again!"

Jeff C on October 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.

Yes, many providers offer organic or eco-friendly treatments. Confirm availability with your contractor.

Leaks, poor airflow, reduced efficiency, and loop blockages are common problems requiring service.

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.

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.

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

Alison Kasch
•
Oct 23, 2025Oct 23, 2025
How Much Does It Cost to Move an Electrical Panel? [2025 Data]
Your budget for moving an electrical panel depends on the type, labor, and more. Find out the average cost to move an electrical panel.
Deirdre Sullivan
•
Nov 11, 2025Nov 11, 2025
How Much Does Electrical Meter Box Replacement Cost? [2026 Data]
If your outside electrical meter box has sustained wear and tear, it might be time for a replacement. How much it costs to replace an electrical meter box depends on labor, model, and box type.
Kat Brancato
•
Oct 10, 2025Oct 10, 2025
How Much is the Average Electric Bill? [2025 Data]
How much is the average electric bill in the United States? Learn how much the average electric bill costs in your state and ways to reduce it.
Lydia Schapiro
•
Oct 29, 2025Oct 29, 2025
How to Tell if a Circuit Breaker Is Bad (and What to Do About It)
Wondering how to tell if a circuit breaker is bad? There are several warning signs you should know to help keep your family, home, and electronics safe from shortages and fires. Keep reading to learn the signs to watch out for with circuit breakers.
Deane Biermeier
•
Oct 17, 2025Oct 17, 2025
Electrical Outlet Repair Cost [2025 Cost Data]
Discover the electrical outlet repair cost of different outlet types depending on the problem, location, amperage, and other factors.
Heather Ayer
•
Oct 20, 2025Oct 20, 2025
How Much Does It Cost to Hire an Electrician to Install Outdoor Light?
Wondering who to call for a fast and easy lamppost installation? Our guide covers who should install a lamppost and the general cost for this project.