Looking for a reputable guide for Paine in Chile?
Jim Pierce had a great experience. By email:
We had two experienced, English-speaking guides, good food, and pre-arranged lodging in refugios (7 nights) and 2-man expedition tents (3 nights). The cost was $2,195 per person. Porters were hired by some at a cost of $60 per day, shared between two persons. Chile Nativo has an American administrator in their office in Puerto Natales who promptly answered all our questions. I highly recommend Chile Nativo.
Here’s their site:
Trekking
We invite you to experience, by way of daily walks, the principal attractions of Torres Del Paine, located in the heart of Patagonia; visiting glaciers, native forests, turquoise lakes and impressive views of the granite towers, sleeping in comfortable campsites, cozy mountain lodges, or modern hotels. …
besthike.com 
Guided trek?!
R U serious?
Don’t waste your $$$ as this is a hike with tons of people and pay camp sites all along thhe trail. Hot showers at most, supplies, and even prepared meals at some.
It’s like employing a “guide” on the Annapurna hike in Nepal. Silly.
You will be embarassed if you use a guide for this trek.
Alone the pass (CCW), I found a “guide’s” 4-man NF tent, and lugged in down the trail until I found the party. They would have had a rough night, as the hike is cold in late March/early April.