The national cost to install an above ground hot tub averages 18, with most homeowners spending between 57 and 90. The approximate cost to install a built-in hot tub varies from 5,000 to 0,000. HomeAdvisor's Pools and Hot Tubs Cost Guide offers price information on swimming pool, spa, . Remodel a Swimming Pool . Install an Above Ground Pool. HomeAdvisor's swimming pool remodel cost guide lists average cost information . If the pool is inground or above ground and has a liner, the cost of the liner as . May 2, 2017 - Select Your Swimming Pools & Spas Project . The cost of an above-ground pool can often be half that, or even less, than an in-ground pool, . Portable spas average between ,000 and 2,000, depending on size and features. In-ground spas average between 5,000 and 0,000. It is often more cost-effective to build them in conjunction with an in-ground pool. Aside from costs, the advantages and disadvantages of portable and in-ground spas vary. Feb 23, 2008 - Last summer we were going to add a spa to our existing pool during our remodel. Our price was 5,000 - 7,000 to add it into the existing . Apr 23, 2016 - If you're already building a pool, you should consider adding a hot tub now or you'll have to remodel later which can be costly. Inground hot . Jan 26, 2018 - When you are thinking about a swimming pool remodel, the first thing that pops into your mind is most likely how much it is going to cost you. Jun 3, 2015 - how much does it cost to add a spa to an existing pool Just thinking about a nice, long soak in warm, bubbling water washes away stress. Mar 29, 2015 - The average price of an in-ground swimming pool usually starts around 5000. That cost can quickly rise when factoring in the many possible .