Janssen Pool Construction is an award winning swimming pool and spa builder.
We take pride in our aesthetically beautiful and structurally sound swimming pools and spas
which will provide many years of enjoyment.

Janssen Pool Construction, founded in 1983 by Jess Janssen, is dedicated to building the finest,
energy efficient in ground swimming pool and spa in Marin, Sonoma, and Napa Counties at competitive prices.
We also specialize in superior swimming pool and spa renovation. Our company philosophy can be summed
up in two words: Customer Satisfaction. This is why for 29 years we have been the preferred choice of discriminating
homeowners, builders and architects throughout Marin, Sonoma, and Napa Counties.