Koolau Builders Inc
Licensed general contractor in Honolulu, Hawaii
Koolau Builders Inc holds Hawaii CLB licence CT-31628, active, licensed since 12 Jul 2011, rated 4.0 from 5 Google reviews. No complaints on the Hawaii CLB record.




Report card
- Licence activeHawaii CLB #CT-31628, class B General Building. Issued 12 Jul 2011, expires 30 Sep 2028.
- Licensed 15 yrsSince 12 Jul 2011.
- Workers' comp insuredOn the Hawaii CLB record.
- Liability insuredCrum & Forster Specialty, $1,000,000, valid to 7 Jul 2027.
- No complaintsNone on the Hawaii CLB record.Hawaii CLB record
- BBB AccreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
- 36 building permits since 2020Pulled under this licence (City and County of Honolulu), most recently 27 May 2025. The city's open data names contractors only up to 1 Jul 2025, so later permits are not counted.
Checked against the Hawaii Contractors License Board (DCCA PVL) register on 4 Nov 2026.
About Koolau Builders Inc
Ko‘olau Builders Inc. is a Honolulu general contractor that provides design-build and remodeling services in Hawaiʻi.
- Founded
- 2010
From Koolau Builders Inc's own website, read 5 Nov 2026. We only show what the site states.
Google reviews
4.0(5 reviews)Tim Palms★★★★★ a year agoView on Google
Koolau Builders remodeled our Manoa home and are amazing at what they do. Nick is so easy to work with and all of the subcontractors are absolutely first rate. Their attention to detail and high standards set them apart from other builders.
A. Gunther★★★★★ 6 years agoView on Google
Koolau Builders remodeled our kitchen, and we were very pleased with the entire operation and end result. Nick was very easy to work with and had great follow through. He and his team have a great design eye that really played well off of my own wants and wishes. I love that they were able to retrofit a very special vintage drainboard sink to look fantastic with the new elements. The custom wood grain shelving is bea…
Lii Crum★★★★★ 4 years agoView on Google
Very professional builders with great style!
CH★★★★★ 4 years agoView on Google
Called many times. Returned my call once that went to voice-mail. Left numerous voice mails asking for a callback. Nothing.
Read all 5 reviews on Google Reviews and photos from Google, 4 Nov 2026.
Recent permits
Building permits pulled under licence #CT-31628, from City and County of Honolulu open data. That data stopped naming contractors on 1 Jul 2025, so newer permits are not shown here. Locations are shown to ZIP code only.
- 27 May 2025 · SINGLE FAMILYL DWELLING · ZIP 96734
- 9 Apr 2025 · RT wall · ZIP 96822
- 24 Feb 2025 · Driveway · ZIP 96822
- 20 Nov 2024 · SFD · ZIP 96817
- 20 Nov 2024 · SINGLE FAMILY DWELLING · ZIP 96817
OSHA inspections
US Department of Labor enforcement data, matched by business name and city.
- 15 Nov 2019 · Planned5 violations, $5,406 penalty · View on OSHA
- 10 Feb 2017 · Planned0 violations · View on OSHA
Why it ranks #69 of 553 general contractors in Honolulu
Score 75.5 / 100. Claiming this listing or using Theo never changes it. How we rank
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