What is the deal on 240 V wiring for a hot tub. Does this cost a lot to put in and can it be run off the 220AMP service we have at the house?

You will need a 240 Volt GFI/50 amps if Heated, Conduit to go fro the panel to your disconnect, then to SPA. Then,2 #6's, 1 #8 for neutral and a #10 for ground, and the Labor to put in. Price Varies due to length and Labor.

The deal is cost will depend on the size tub, size of the circuit needed, length of circuit feeder, etc.

Then there are materials and labor costs in your area. Electrical work in Boston will cost much more than in Boise Idaho.

There is no such thing as 220 amp.

There is 120/240 volts service rated 200 amps, is this what you mean?

Even if you have a 200 Amp service, depending on what the tub needs for power, it may or may not be large enough.

I suggest you chose a tub, the call in an electrician to see if this tub will fit on your service and provide a price.

A typical spa wiring job for me runs anywhere from $600-$1300.

This is a legal and proper install. You'd be surprised how much materials cost for this.
The thing I hate is that spa dealers always downplay the cost of installation which makes us look like crooks. :mad: Most will say it cost "a couple hundred bucks".
They would want to lose out on a sale by telling folks the truth now would they.

As a homeowner, you could save money if a conduit was stubbed outside the house from panel, conduit run to where the Electricians time would be at a minimum. May have to crawl throuh attics, basements, under trailers.
An Electrician would appreciatate not having to do attic work or digging. Time IS money.