Toyota corolla 2003, haven't had this problem before. What will I need to do to have the guy fix it, have to call my guy.

Thanks

"What will I need to do to have the guy fix it". Too many variables for just what it needs. Typically a crack in the evaporator, condenser or leaking line.

With the engine running, turn the AC on max. If the under hood lines and receiver/dryer don't get real cold, you have a refrigeration problem. In this case, you'll have to have the system checked out for leaks and manifold pressures.

I have found most common on these is the magnetic clutch relay quit working. It's located under the hood in the fuse and relay box. It's cheap enough at the auto parts store to try yourself. Be sure all power is off when doing the R&R.

Air conditioning problems are expensive to fix mostly because finding problems is very time consuming (time is money) and blame the EPA for making much of the involved costs for equipment. Legal requirements, procedures and supplies very expensive. Sometimes you get lucky and its something simple or cheap and easy.

Trust me...I went and got a license to have cheaper access to everything I need to do my own work on my own Antique vehicles. I know what's involved. There are crooks out there....but its expensive even at the honest ones.

Last year for grins I took Dodge Truck fleet vehicle to the Dodge dealer for A/C work....they couldn't find what was wrong, Took it to a Merchants tire....they wanted $1,250. Keep in mind I already knew what was wrong before taking it in (took me all of 10 minutes to figure it out). It was a $175 part (Retail price) that could be replaced in 1/2 hour without special tools....half that time with them.

Couldn't find a shop that would replace just the part it needed (clutch coil went bad). Found a Used compressor for $50 pulled the coil from that AND had it replaced in the installed compressor in 45 minutes taking my time....worked like a charm the rest of the season before I turned the truck in. Company paid me overtime to fix it myself. Cost the company less than $200 total to have me do the complete job.