Inground Swim Spa

Semi-Inground Swim Spas

Just Like Inground Swimming Pools… but BETTER!

  • Cheaper
  • Faster
  • Easier
  • Year-Round

Why You Should Get A Semi-Inground Swim Spa

Instead of an Inground Swimming Pool


Our swim spas are cheaper to install and maintain than most swimming pools.


We can deliver most of our swim spas significantly faster than any contractor to install an inground swimming pool in your backyard. Period.


It’s less time consuming and easier to maintain a swim spa than most swimming pools.


You can use and enjoy your swim spa all year around. No winterization needed.

Exercise Anytime In Your Own Backyard.

The safest calories burned every 5 minutes

Swimming or water aerobics can provide a full body workout for any skill level without the risks associated with other exercise options. This makes swimming the exercise of choice for safe exercise.

70 kcal
Swimming has the lowest risk of injury
70 kcal
40 kcal
40 kcal
80 kcal
80 kcal
95 kcal
95 kcal

Risk of Injury

Very Low Low Mild High Very High

* Results may vary from person based on body size, exercise intensity and other factors.

A swim spa is great for entertaining friends and family or relaxation, but what it’s best for is providing an unmatched exercise experience. With customizable water pressure you can find the perfect pressure for swimming or water aerobics for any fitness level. Plus, with our in-ground options you can have all these benefits without a compromise to the aesthetics or accessibility.

Date Night. Every Night.

Browse Our Epic Swim Spas!

$6,000 OFF
riogrande swim spa
Rio Grande Side View
Hurry! Only 2 Left!
Rio Grande W-Flow Swim Spa
Wellis Spa
19.7 x 7.7 x 4.8 ft
236 x 92 x 57 in
5994 x 2337 x 1448 mm
41 jets
1 jets

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or call us for details!

$5,000 OFF
Amazonas W-Flow Swim Spa
Last Item in Stock!
Amazon W-Flow Swim Spa
Wellis Spa
18 x 7.5 x 4.8 ft
216 x 90 x 57 in
5486 x 2286 x 1448 mm
27 jets
1 jets

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or call us for details!

$7,000 OFF
Danube Swim Spa with River Jets
Last Item in Stock!
Danube Swim Spa w/ River Jets
Wellis Spa
14.8 x 7.7 x 4.8 ft
177 x 92 x 57 in
4511 x 2346 x 1463 mm
24 jets
3 jets

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or call us for details!

$7,000 OFF
danube w flow
Special Order
Danube W-Flow Swim Spa
Wellis Spa
14.8 x 7.7 x 4.8 ft
177 x 92 x 57 in
4511 x 2346 x 1463 mm
24 jets
W-Flow jets

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or call us for details!

Semi inground Swim Spa in nc

Fun For The Whole Family.

Enjoy Your Swim Spa 365 Days a Year

Swim Spas

Less Space Needed
Adjustable Infinity Swim Jets

Swimming Pools

Enjoy One Season a Year
Complex Permitting Process
Time Consuming Construction
Because swim spas can be used year-round, you don’t need to spend extra time doing maintenance for opening like you would for a pool.
After the long winter you are finally able to begin the process of getting your swimming pool ready by doing costly and time-consuming opening maintenance so it’s ready for summer.
During summer you can enjoy both your swim spa with additional features such as adjustable infinity swim jets and jetted hydrotherapy seating.
During summer you can finally use your pool! However, you will need to spend more time doing water maintenance and cleaning due to its larger size.
During the autumn season your easy-to-open swim spa cover will keep your spa clean.
During the autumn season you will have to deal with constant cleaning of leaves and debris, and you will have to close it at the end of the season for the winter months.
During the winter season your swim spa can maintain a warm water temperature throughout the coldest months, allowing for true year-round use.
Most swimming pools are closed for the winter season.
Swimming pools are limited to only one season per year.

Looks Great in Any Backyard

In-Ground Swim Spa Cost

The cost of a semi-inground swim spa mostly depends on three factors. The cost of the swim spa itself, the price of construction and the cost of the electrical work. The price of an inground-swim spa typically starts around the mid $20,000 range and increases based on the size and features you choose.

Construction Cost

The cost of construction for a semi-inground swim spa typically doesn’t include the concrete work cost associated with an above-ground swim spa. While there are many factors that will affect your construction price, it will likely cost around $10,000 to complete the project itself.

Electrical Cost

The average cost to hire an electrician to get your swim spa the power it needs is roughly $4,000.

Wellis Swim Spa Customer Testimonials

Don’t take our word for it, take it from the many satisfied Wellis Swim Spa Customers.

Frequently Asked Questions

What is the largest semi-inground swim spa?

The longest semi-inground swim spa we offer is the Rio Grand W-Flow dual zone swim spa. This spa spans nearly 20 feet long. In addition to it’s 12 foot fitness zone the Rio Grande also includes an attached hot tub capable of seating up to 5 people.

In terms of the largest fitness zone, the 18 foot Amazon W-Flow offers the most space for swimming and exercise.

What is the shortest semi-inground swim spa?

The shortest semi-inground swim spa we have is the Danube W-Flow swim spa from Wellis Spa. At just 15 feet long, this Swim Spa can fit in the smallest of spaces.

Do I need a concrete pad for a semi-inground swim spa?

The short answer is no, the process of seating a semi-inground swim spa can allow for installation without need for a concrete pad! This can cut down on installation time and is another great reason to consider semi-inground. As always, refer to your swim spa installation documentation and ask your spa expert if you have any questions!

How quick can you install a semi inground swim spa?

If we have your desired swim spa in-stock you can expect to have your semi-inground swim spa installed in only a few weeks. If we need to special order your swim spa, it could take up to a few months.

Questions about Our Semi-Inground Swim Spas?

Please call 888-884-3742 or fill out our form below!

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