top of page
Building Science Staff & Crew

The Building Science Team

Oahu Home Construction Company

When you hire a General Contractor and their construction crew for your home, you need to know that they have the experience and knowledge to see the job through.

We encourage you to get to know our staff and crew, including their specialties, backgrounds and skills.


We stand behind our people, their dedication to the job and the quality of their work.

You'll find out why using the links below.


Just click on the picture of any of the crew members below and find out what makes them, and Building Science, stand out and apart.

Sean McKenzie, Owner & RME

Sean McKenzie

Owner/RME, Licensed General Contractor

Darryl Geren, Project Manager

Darryl Geren

Project Manager

Alma Mendoza, Project Administrator

Alma Mendoza

Project Administrator

Kazu Shima, Lead Carpenter

Kazu Shima

Lead Carpenter

Colin Dela Cruz, Lead Carpenter

Colin Dela Cruz

Lead Carpenter

Evan Fogarty, Lead Carpenter

Evan Fogarty

Lead Carpenter

Kahi Hirano, Carpenter

Kahi Hirano

Carpenter Apprentice

Ready for an Oahu Home That's Truly Yours?

Contact us now to get a Free Quote on a remodel or new custom home, done with professionalism and dedication to the job.

You can also see our Home Construction & Remodeling Services, with photos of past client projects right here on Oahu.

bottom of page