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Great Bay Spa & Sauna

Find a wide selection of hot tubs and spas at a Sundance Spas hot tub spa dealer in Portsmouth, New Hampshire.


275 Constitution Avenue
Portsmouth, NH 03801


603-436-8893 Send to Phone

Store Hours

Monday: 8AM - 5PM
Tuesday: 8AM - 5PM
Wednesday: 8AM - 5PM
Thursday: 8AM - 8PM
Friday: 8AM - 5PM
Saturday: 9AM - 5PM
Sunday: Closed

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  • When you first enter the store you will notice employees that are ready to help you and that are very pleasant to deal with. Tony (manager) has a incredible knowledge base on hot tubs and he helped us pick out our hot tub seven years and if I ever have a question, I can call him and he or Jess will be there to answer me.

    - Bruce T.

  • We bought our Sundance spa from Great bay over 11 years ago and have been totally thrilled with the knowledgable sales and service team. Our optima spa has brought us years of service and is still going strong. We continue to buy most of our supplies there and you will always feel welcome there, as the sales people are wonderful

    - Cindy A.

  • I was shopping for hot tubs for several years and had been to many different locations looking at the multitude of options. I came across Great Bay Spa & Sauna and it was clear that they had the best product and reputation around I worked with both Jamie and Tony throughout the process. I would certainly recommend this company!

    - Jeffery D.

  • I purchased a hot tub from Great Bay in October 2012 as a retirement present for my husband and myself. We got excellent advice from Tony, Jessica, and Jamie. Even after the installation, I had to call a few times with questions and everyone was extremely helpful and patient. It is a pleasure to deal with GBSS!

    - Chip W.

  • About
  • Staff
  • Services

Great Bay Spa & Sauna is New England’s oldest and most respected dealer of hot tubs, swim spas and saunas. We are conveniently located in Portsmouth, NH, about 50 minutes north of Boston, MA, and 50 minutes south of Portland, ME.

At Great Bay Spa & Sauna, we are devoted to improving your personal wellbeing and changing your life for the better. Do you have some aches and pains you want to soothe? Get one of our hot tubs and enjoy the benefits of hydrotherapy, hydro massage and hot water soaking. Looking for a highly effective, low-impact exercise? Install a swim spa and enjoy year-round aquatic aerobics, swimming and just plain relaxing. Or experience the amazing, detoxifying benefits of a deep sweat in your own, personal sauna. No matter which you choose, Great Bay Spa & Sauna will there for you – before, during and after your purchase.

About our Staff

Great Bay Spa & Sauna prides itself in having some of the friendliest and most knowledgeable staff who are eager to answer all your hot tub related questions. They love pouring over features and tech specs, which becomes evident the minute you meet them. More importantly, however, is their passion to giving you the best experience possible in order to help you find the hot tub of your dreams. Come by our Portsmouth showroom or call 603-436-8893 today!

Our Outstanding Staff

Tony Pescosolido Portsmouth Hot Tub Dealer Tony Pescosolido — Sales Manager

Tony has been with Great Bay Spa & Sauna for just over 20 years. His love and knowledge of hot tubs and the Sundance Spas brand is evident in everything he does. But more important than that, is his love for inspiring people to improve their well being through the benefits of hydrotherapy. Tony's favorite spa is the Sundance Optima, but being in an empty nest, him and his wife thoroughly enjoy their Sundance Capri.


Jamie Burson Portsmouth Hot Tub Dealer Jamie Burson — Sales & Operations Manager

Since he joined us in August of 2003, Jamie has served in various roles for both Great Bay Spa & Sauna and its sister company Selectwood. Some of these roles include Assistant Warehouse Manager, Special Project Manager and Operations Manager. Currently Jamie is part of the Great Bay Spa & Sauna sales team and also serves as Operations Manager. Jamie is a Certified Sales Professional for Sundance Spas. In his free time, Jamie enjoys spending time with family and friends, as well as being in the great outdoors.


Jessica Steneri Portsmouth Hot Tub Dealer Jessica Steneri — Sales & Customer Service

Jessica is one of our Sales & Customer Service Professionals. She joined the Great Bay Spa & Sauna team in August of 2012, initially serving as Customer Service Coordinator. She quickly learned about all aspects of the business and moved over to sales within the first year. Since then she has become a Certified Sales Professional for Sundance Spas. In her spare time, she enjoys cooking and spending time with friends and family. She also can often be found at local Cross-Fit facilities here in the Seacoast during one of her many early morning workouts.


Greg Gerber Portsmouth Hot Tub Dealer Greg Gerber — Engineer & Master Service Technician

Greg joined the company in June of 1988 when we used to be known as Great Bay Hot Tub Company. Greg brings a vast level of knowledge and experience to Great Bay Spa & Sauna. He has two college degrees – one in Environmental Medicine and another in Business Management. Having a lifelong love of electronics, he started designing and building custom circuitry when he was a young child. Prior to coming to Great Bay Spa & Sauna, Greg spent time in the US Air Force as well as in the security industry where he designed, built and installed alarm systems. Greg continues to design and develop most of the custom hot tub, swim spa and sauna projects that Great Bay Spa & Sauna sells and manages. When he’s not working for us, Greg has several interests that keep him busy, including Gerber Video Productions and spending time with his wife and daughter, as well as numerous outdoor activities.


George Young Portsmouth Hot Tub Dealer George Young — Master Service Technician

George Young has been a member of the Great Bay Spa & Sauna team since the summer of 1998. As a Master Service Technician, George is a Certified Service Technician for Sundance Spas, Bullfrog Spas and Nordic Hot Tubs. He also assists with many aspects of the operations at Great Bay Spa & Sauna, which include inventory management, warehousing, deliveries and warranty management. In his free time, George enjoys coaching his daughter’s softball team and participating in various other sporting activities.


Matt Young Portsmouth Hot Tub Dealer Matt Young — Service & Maintenance Technician

Matt joined the Great Bay Spa & Sauna team in December of 2000 as a Delivery and Service Assistant. Since then, Matt has acquired many skills and is also a Certified Service Technician for Sundance Spas and Nordic Hot Tubs. He currently works as one of our Service and Maintenance Technicians and also assists with Deliveries and Warehousing. In his free time, Matt enjoys spending time with friends and family. He also enjoys running and has completed several local races, including a few half marathons and the Spartan Race.


Tim Shaw Portsmouth Hot Tub Dealer Tim Shaw — Delivery Lead & Maintenance Technician

Tim Shaw currently serves as our Delivery Lead and as one of our Maintenance Technicians. Tim started with our sister company, Selectwood, in 2005 working as one of the lumber yard professionals. In 2011, Tim started to assist with our hot tub and swim spa delivery team. He was promoted to Delivery Lead in 2014 and also handles many other aspects of the business, including shipping, receiving and warehousing. When Tim is not at work or spending time with his family, he enjoys restoring and repairing cars, trucks and motorcycles.


Great Bay Spa & Sauna is the official Sundance Spas hot tub dealer in the 03801 area. Whether you're looking for a top-of-the-line luxury spa or an intimate 2-person hot tub, we have options suiting all you and your family's preferences. Visit our large showroom, where you can browse and test all the popular Sundance models.

At Great Bay Spa & Sauna, we provide a variety of services to accommodate your every spa need. You'll find an impressive selection of Portsmouth hot tub models, spa accessories, covers, and even water care products. We also offer hot tub installations and maintenance to help make purchasing and owning a spa as simple as can be.

Call 603-436-8893 or email us today to receive information about wet tests, upcoming sales and promotions, and available outdoor hot tub models. You can also contact us to find out more about special financing or schedule a visit to our showroom.

Click here to receive a quote for hot tub prices. If you have an old spa, find out your hot tub's trade-in value to help offset some cost.

Not ready to make a decision yet? Download our 52-page full-color brochure to learn more about our models, features, and designs today.

  • -  Sundance Spas
  • -  Hot Tub Accessories
  • -  Covers & Lifts
  • -  Water Care
  • -  Hot Tub Service
  • -  Chemicals
  • -  Wet Test
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