Hawaiian Energy Systems, Inc.

solar panel installer, water heater installer

About us

We are a locally owned, operated company that values honesty and integrity, treats your home as if it were our own. We offer a variety of Solar Systems, energy efficient roof coatings as well as repair services that are customizable to each individual project. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction! Our roof cleaning does not include wood shake roofs.. HESI installs/repairs/commissions residential & commercial, solar hot water systems, PV micro inverter systems and energy efficient roof coatings always using the latest in solar technology. We are an approved contractor of the Hawaii Energy Program.

Business highlights

17 years of trusted experience

Amenities

Warranties
Yes

Reviews

4.798 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
84%
4
9%
3
6%
2
0%
1
1%


Rating CategoryRating out of 5
quality
4.8
value
4.6
responsiveness
4.7
Showing 1-25 of 98 reviews

Gary I.
04/2025
5.0
very efficient; very knowledgeable; great service
Rating CategoryRating out of 5
$400

Sharon O.
09/2024
5.0
Save money! Go hire them!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Tom M.
06/2024
5.0
Tech that came out and did work very experienced, trustworthy. Comfortable with what he knew. Liked quick response.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$500

Richard S.
05/2024
5.0
Superb service and repair. Explanation of work and timely completion of repair second to none.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$550

Myron W.
03/2024
5.0
Got it done right. Happy with the service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Mike A.
10/2023
5.0
Darrell did made a great effort in explaining the problem and to best way to fix it.

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro
$350

Zach E.
10/2023
5.0
Fast and efficient service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$255

Mike B.
08/2023
5.0
Explained every detail.

Rating CategoryRating out of 5
quality
4.5
value
4.0
responsiveness
4.5

Yes, I recommend this pro
$7,100

Mike B.
08/2023
5.0
Honest and transparent

Rating CategoryRating out of 5
quality
4.5
value
4.0
responsiveness
5.0

Yes, I recommend this pro
$7,000

Susan Y.
06/2023
4.5
We have hired Darrell Ing twice to do work on our church's solar hot water system. The first time was about five years ago. Not remembering which firm had worked on the system earlier, I tried to schedule work with the original installer who never bothered to send someone out even after several phone calls. But, when I called Darrell Ing, he listened carefully to the problem, made a site visit within the day, proposed a solution that was the most cost effective, and scheduled a repair within the week. They found more that was wrong when the job was underway, but managed to replace all defective parts within the day. The cost of the work was reasonable. The only hiccup for us was getting payment for the extra work. Darrell asks for payment upon completion of the work. Our church pays through a third-party vendor. I had to ask the office manager to come in on her day off to cut a paper check, and then I had to ask the Treasurer to make a trip into town to sign the check. This took coordination and cooperation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,521

Francis L.
06/2023
4.5
Quick

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
4.5

Yes, I recommend this pro

Diane C.
08/2022
5.0
Darrell Ing of Hawaiian Energy Systems Inc was super helpful. He did not try to sell me something I didn't need and installed a standard water heater based on the size of our household. Work was done in a timely manner and Darrell and his crew were professional and efficient. I plan to use them again.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,800

Kimberly Y.
07/2022
5.0
I called on a Thursday evening after business hours, the Owner answered the phone and took the time out to listen to the problem and understood the urgency. He had someone out to the house to repair the next day. Owner was also present at the over 3 hour appointment. They were both extremely knowledgeable on solar/water heater systems. They were very professional and on time to the appointment. Price was very reasonable! I couldn't be more pleased and grateful! I will be using this company for all plumbing/water heater matters in the future!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Norman T.
05/2022
3.5
N/C

Rating CategoryRating out of 5
quality
4.0
value
4.0
responsiveness
4.0

Yes, I recommend this pro
$470

Rick B.
03/2022
5.0
They did solar hot water tank replacement for lower price than 4 other estimates, cheked other components, and completed replacement next day. They returned and fixed another minor leak at no additional charge the following day.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,775

Ronnie C.
10/2021
4.0
Owner/crew did a great job to restore my solar panels/collectors in one day. Works almost as good as new. Suggest that a little bit better communication and understanding in any future work with company

Rating CategoryRating out of 5
quality
4.0
value
4.0
responsiveness
4.0

Yes, I recommend this pro
$2,300

Laura W.
06/2021
5.0
Communication was excellent, they were very timely, I couldnâ t have been happier with the price and the service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Peg C.
09/2020
5.0
Darrel was very knowledgeable and resourceful and went out of his way to solve my issue.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Carol D.
09/2020
5.0
I would recommend Hawaiian Energy Systems and Darrell Ing to other customers for their excellent work and fair pricing.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Chris W.
08/2020
4.0
(No comments provided)

Rating CategoryRating out of 5
quality
4.0
value
3.5
responsiveness
4.0

Yes, I recommend this pro

Puni K.
06/2020
5.0
Timely response to my call. Friendly service. Reasonably priced. Mahalo Darrel for taking care of our PV and solar panels.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$350

michele o.
06/2019
5.0
Very reasonable and work was completed in a timely manner

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Jeffrey Y.
03/2019
4.5
Very reasonable price. Excellent work in replacing our solar water heating system (tank and panels).

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Jl W.
12/2018
5.0
Very fast service and reasonable price. I will use Hawaiian Energy Systems again.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Contact information

363 Kikoo Place, Honolulu, HI 96825


Service hours

Monday:
8:00 AM - 5:00 PM
Tuesday:
8:00 AM - 5:00 PM
Wednesday:
8:00 AM - 5:00 PM
Thursday:
8:00 AM - 5:00 PM
Friday:
8:00 AM - 5:00 PM
Saturday:
Closed
Sunday:
Closed

Service Categories

solar panel installer,
water heater installer

FAQ

Monday: 8:00 AM - 5:00 PM

Tuesday: 8:00 AM - 5:00 PM

Wednesday: 8:00 AM - 5:00 PM

Thursday: 8:00 AM - 5:00 PM

Friday: 8:00 AM - 5:00 PM

Saturday: Closed

Sunday: Closed

No, Hawaiian Energy Systems, Inc. does not offer free project estimates.
No, Hawaiian Energy Systems, Inc. does not offer eco-friendly accreditations.
No, Hawaiian Energy Systems, Inc. does not offer a senior discount.
No, Hawaiian Energy Systems, Inc. does not offer emergency services.
Yes, Hawaiian Energy Systems, Inc. offers warranties.

Contact information

363 Kikoo Place, Honolulu, HI 96825


Service hours

Monday:
8:00 AM - 5:00 PM
Tuesday:
8:00 AM - 5:00 PM
Wednesday:
8:00 AM - 5:00 PM
Thursday:
8:00 AM - 5:00 PM
Friday:
8:00 AM - 5:00 PM
Saturday:
Closed
Sunday:
Closed