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About Us

Matrix Development Corp (known currently as Matrix Gunite Pools) was incorporated in the State of New York on June 6, 1976.  We are a family owned and operated business specializing in the design and construction of both residential and commercial gunite swimming pools.
We also offer our customers’ professional pool service, maintenance and renovation services.

We are fully licensed and insured and have been, without interruption, for 44+ years and located on the east end of Long Island.
Proven partner with an excellent reputation in the local community.  This accounts for the recommendations received from architects, engineers, builders, landscape architects, and landscape contractors.  We are particularly proud of the many referrals received from our existing customer base.

Matrix Development Corporation holds the following Home Improvement Contractor licenses:

Suffolk County #2679 (since 1976) | Town of Southampton #255 | Town of Easthampton #5264 | Town of Shelter Island #423-R

Karl J. Bonawandt, President holds the following Degree:

Bachelor of Landscape Architecture degree from the School of Environmental Design at the University of Georgia (1971).

Karl T. Bonawandt, Vice President holds the following Degree:

Bachelor degree in Economics from the State University of New York at Stony Brook (1993).

We are members of the following professional organizations: