Welcome to our forum.
Wow, I got 3 quotes for electrical, all about $750-900, and my box was included with the spa! I did have to run the line from front to back of house though.
Electrical costs vary depending on your location and what you need. If you need an upgrade to 200 amp service then that is an additional $1500 to $2000 extra. Running the circuit can be $450 but as you see people got quotes of $750 to $900. If the breaker box is too close, the local codes may not allow a tub there.Concrete can be somewhat expensive IMO. If you have the ability to do it yourself you wil may be able to get by cheaply. Also, a lot of concrete people (actually a lot of contractors) don't want to do small jobs.
3. I have a little slab in my backyard and I am in need to add a new bigger slab addition to the one I already have. How much does it cost for the average 8'x8' or 9'x9' re-enforced slab and what options are out there to add a new slab in the back.
Are there any good sites or recommendations for plans on preparing the ground for a spa?