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R.K. Builders Hawaii

Apr 4, 2015

Need a Wooden Sign for your business?  Add interest to your doors or cabinets with carved images!

Apr 4, 2015
Visit us at the 2016 Merrie Monarch Fair from Wednesday, March 30  through Saturday April 2 from 9am to 5 pm!

Ray Kobayashi, Hawaii (Big Island) General Contractor / Realtor

Craftsmanship & Experience

We have built over 500 residential homes throughout East Hawaii including a 20-unit townhouse (Kawili Regency) and an 18,000 sf warehouse in the Shipman Industrial Park in Keaau.  Beginning with our first home in Hawaiian Paradise Park in 1972,  we have probably built a home in almost every subdivision in Puna and Hilo.

As both a building contractor and a Realtor, Ray Kobayashi combines his experience and knowledge to construct homes that weld his customers’ desires with what they can afford to build.  He clearly remembers how hard it was to obtain a loan for an existing pre-built home, which made him decide to build his own. Working an average of 12 hours a day, seven days a week for nearly 40 years, Ray approaches his construction projects with the same vigor and enthusiasm of his very first project. More about our construction services »

R.K. Builders' wood mill constructionSpecializing in Hawaiian Hardwoods

We purchased an ohia forest and built a wood mill on the property, which allows us to focus on using local hardwoods in home construction. R.K. Builders, Inc. can take a newly cut koa, ohia, mango or eucalyptus tree, cut it into useable sizes, dry it in kilns, then trim the wood into pieces that can create original crafted walls, flooring, ceilings, moldings and cabinets. Click here for our native wood gallery. Before you grade your lot we would be happy to salvage any useable trees to integrate into your new home!

R.K. Builder's recent projects,  Lelepau Street and Kaiwiki Road, both in Hilo, are magnificent examples of Ray's craftsmanship and vision.

If you are looking to build residential or commercial, interested in Hawaii island real estate or custom Hawaiian hardwood furniture or finishes please contact us!

When we moved to Hilo from Japan, we hoped that we would be able to find a nice neighborhood and a comfortable home to live in.  R.K. Builders, Inc designed and built our home in the Waiakea Heights subdivision.  We love living here and enjoy the large lanai in the back for many of our activities, often times with guests from out of the island.

Ray is easy to talk to and his knowledge about building products and the most efficient way to install them make him a great contractor. He found the best way to install the accessible ramp to the front of our house and worked hard to make this wonderful addition to our home.

Saeko & Masa Hayashi


Wood Working Gallery »

Custom Koa Furniture

Custom Koa rocking chair and side table

Ray mills his own Hawaiian hardwords to create beautiful koa rocking chairs, tables and more.

Koa Furniture for Sale »

Real Estate Services

We are licensed Realtors. If you are interested in buying or selling a home or land on the Big Island let us help you!

Real Estate Services »