Regaurdless of the details you omitted, I would venture saying you could get the same job with an equal guarantee less expensive with most other companies. Pick a good medium size company with a good local reputation ask them for a free inspection and quote if needed.. Try asking your neighbors about their termite services. I write extensivly about this in my Homeowner Guid to termite Control at http://TermiteMD.com , go ther for a lot more information.
If you are having your property tented, there is no guaratee that new termites won't colonize once the tent is off and the gas disbursed. Fortunately, dry wood termites are very slow acting. If you have subterranean termites, the treatment should be quite effective. We had some treated more that 25 years ago and haven't seen any since.