Welcome to Poseidon’s Custom Pools, Union Township, NJ’s top destination for bespoke swimming pool creation. We pride ourselves on designing beautiful pools that complement your home and respect local conditions—from RA/RR zoning rules to carbonate rock terrain and Brunswick shale soils. Whether you envision a private retreat or an exciting hub for gatherings, our expert team navigates Hunterdon County regulations and Soil Conservation District guidelines to bring your backyard dreams to life. With premium components and cutting-edge methods, we build pools that combine visual appeal with lasting, code-compliant quality. Start your path to luxury with Union Township’s finest builders today!
At Poseidon’s Custom Pools, your satisfaction drives everything we do. We take the time to understand your vision for life in Union Township—whether you’re near Stanton, along Route 202, or in the RA/RR district—and collaborate closely to ensure your pool meets local soil, zoning, and conservation rules while exceeding your expectations for beauty and function.
With more than 25 years in the pool industry, our skilled team brings unmatched expertise to every project in Union Township, NJ. We’ve built pools across RA and RR zones—navigating carbonate rock, Brunswick shale soils, and Soil Conservation District requirements—while using innovative techniques and premium materials to deliver durable, code-compliant results that stand the test of time
We’re committed to excellence. By using premium materials and employing Union Township’s top craftsmen—many familiar with carbonate rock and Brunswick shale—we ensure your pool is not just visually stunning but engineered for Hunterdon County’s unique geology and built to last.



Our expert swimming pool contractors are dedicated to bringing your vision to life. Whether you desire a classic pool, a contemporary oasis, or a unique water feature, we have the expertise to make it a reality.
Is your existing pool in need of a transformation? We excel in pool renovation and remodeling, updating and enhancing your pool to meet your current preferences and needs.
Ensure your pool remains in pristine condition with our comprehensive maintenance and repair services.From regular cleaning to equipment repairs, we provide solutions to keep your pool functional and beautiful.
Elevate your pool experience with custom features such as waterfalls, spas, lighting, automation systems, and more. Our team can create a pool that suits your lifestyle and desires.
We’re proud to bring our custom in-ground pool installations, gunite pool expertise, and pool renovation services to communities throughout Eastern PA, NJ, and DE. Whether you’re dreaming of a saltwater pool system with LED lighting or need pool leak detection and repair, we’ve got you covered. Here are the areas we serve:
Our design team is considered to be the best swimming pool and outdoor living designers in the region.
No customer will be delivered a Poseidon Custom pool with out 100% satisfaction!
Our crews are fully licensed and insured in Pennsylvania, New Jersey & Delaware.
We are at your service and will take your calls at any time and any day of the week.
EXCELLENT Based on 13 reviews Posted on Noel OmalleyTrustindex verifies that the original source of the review is Google. Great Prices Great WorkPosted on David SmithTrustindex verifies that the original source of the review is Google. Excellent workers, positive attitude and very knowledgeable. The company really made me feel comfortable and walked me through the process of building a pool. I will definitely recommend to others.Posted on Unaisi PhyllisTrustindex verifies that the original source of the review is Google. Anthony has great communication and a true professional! In every course of our working together he was patient, understanding and went above and beyond to get every detail of the project accomplished!Posted on Stefanie PajerTrustindex verifies that the original source of the review is Google. Anthony designed our entire backyard. He had innovative ideas and incorporated the things we loved about our existing yard into the design. It's years later and we are still in love with it! This yard has stood the test of time. Anthony has always been responsive, professional, and responsible. He was a joy to work with and a pleasure to have around! Highly recommend with no hesitation!Posted on Lil AntTrustindex verifies that the original source of the review is Google. There service is awesome took care of our job with no problem and excellent quality of work I would recommend anyone to use there servicesPosted on Veronica RodriguezTrustindex verifies that the original source of the review is Google. We have worked with Anthony and Poseidon Custom Pools for several years now and have seen firsthand the care and consideration that goes into all of his work. He approaches all of his jobs with a customer-first mentality and great attention to detail. I highly recommend anyone considering a new pool or backyard reach out to Anthony for his help in turning their dream into reality.Posted on Allyn MillerTrustindex verifies that the original source of the review is Google. Anthony is so passionate about what he does and it shows, in both his service levels, and the superior quality of his work. From start to finish the process is customized to the unique visions of his clients, and turning those visions into a beautiful and master crafted reality! I very highly recommend that you look no further and reach out!Posted on Brian FaubleTrustindex verifies that the original source of the review is Google. We chose to work with Anthony and Poseidon Pools after meeting with three other companies. Anthony was very responsive and actively involved in every aspect. He made great recommendations based on our initial ideas. We went with a very dark gray gunite with crushed abalone shells mixed in. When the sun hits them it looks like a star-lit night. The dark color also keeps the pool warmer. The installation was very quick and we were not left wanting. We had our pool installed 6 years ago and we still get compliments from our guests. We continue to recommend Poseidon Pools to anyone we meet that wants an amazing pool that can literally be one of a kind, and wants to work with a great company that will be there for you.Posted on sam daloTrustindex verifies that the original source of the review is Google. Anthony came out for an estimate, and was very friendly and reasonable with his prices . Highly recommend !!







A significant portion of Union Township sits on carbonate bedrock, which can be prone to sinkholes. If your home is in this overlay zone, we must perform a geotechnical investigation before digging your pool to ensure the ground is stable. We handle this coordination with the township engineer to guarantee a safe, long-lasting build.
Zoning ordinances typically require that your pool be located in the rear or side yard and set back at least 20 to 50 feet from property lines, depending on your specific zone (e.g., RA or RR). We review your specific survey during our initial consultation to determine the exact allowable location for your pool.
Yes. Union Township has strict limits on “impervious coverage” (the percentage of your lot covered by structures and pavement). We perform a detailed Lot Coverage Calculation including your house, driveway, new pool, and patio to ensure your design stays within the permitted percentage (often 15-20%) without needing a variance.
Yes. If you are installing a heated pool—which we highly recommend for extending the season in Hunterdon County—you will need a mechanical/plumbing permit for the gas line and an electrical permit for the heat pump. We manage all these sub-code permits as part of our full-service package.
Many parts of Union Township contain dense Brunswick shale, which is difficult to excavate with standard equipment. Poseidon’s Custom Pools utilizes heavy-duty excavators and rock-breaking attachments to efficiently dig through this hard terrain, preventing timeline delays that less experienced builders might face.
To meet the International Swimming Pool and Spa Code (ISPSC) adopted by NJ, your pool must be enclosed by a barrier at least 48 inches high. In Union Township, this fence must have self-closing, self-latching gates. We often install “deer fencing” that meets these safety codes while blending into the rural landscape.
If your pool project disturbs more than 5,000 square feet of soil (which is common for larger custom builds with extensive patios), we must file a plan with the Hunterdon County Soil Conservation District. We handle this certification to ensure your site is compliant with state environmental regulations.