Win Win Builder & Consulting LLC
It is our mission to safety provide quality work at a fair and competitive price. Ph: 258-5198

Win-Win Builder, LLC (Win-Win Group) is based in Hawaii, USA.

Insured / Bonded / Licensed

Civil & Hydraulic / Rail Engineering

Design / Build / Construction / Permit

LICENSE NUMBER  A 34558 | AC 34559 | BC 21423 | BC 32530

The Following "C" classes are automatically issued with an "A" License: 3,9,10,17,24,31A,32,35,37A,37B,38,43,49,56,57A,58B,61

License and Certificate


Design - Build - Quality

Chien Ping Mao, Owner

Civil and Hydraulic Engineer

General Contractor, Rail Engineer

We use a high to medium-high grade of components throughout its building designs. This gives homeowners the added value of knowing that their construction project is built to last, low-maintenance and made with building materials that will have a long lifespan.We now provide the loan service to our clients with competitive rate.


Aiea Office Building, Suite 109 (99-128 Aiea Heights Drive, Suite 109, Aiea HI 96701 U.S.A.)         


General Contractor's License A 34558, AC 34559 (State of Hawa'ii)                                                                    


Certificate of "A" General Engineering Contractor (Pass Exam)                                                                     


Certificate of GOOD STANDING by Department of Commerce and Consumer Affairs (DCCA HAWA'II)          


Certificate of Insurance (2 Millions)                                                                                                                         


Bond Attorney                                                                                                                                                                


Bond Form for Contractor's License                                                                                                                              


Bond Insurance Company, Inc.                                                                                                                                     


Win-Win Builder, LLC | Neng Win Builder | John G's Services (Win-Win Group)

We are a local company in Hawaii.