Dan, I mentioned someone "like" Harry. Harry did refer the OP to someone to work on the 'cord and I'd guess it's someone of similar standards.
Of course any decent camera tech can do a CLA. A standard basic CLA is not that complicated and you can find repair mills that will pump out a CLA in less than a week. My point is this: The difference with someone like Harry is the experience to see beyond a simple CLA when your camera is in his hands, plus having the knowledge AND the parts to fix anything else that might need fixing to prevent future issues. i.e. on one of my 'flexes I sent Harry he noticed that one the the four feet was dented in and bent. Big deal? Could be, the camera does not stand as steady as it should and as such is much more prone to tumble easily. One good fall off a table or desk and you're now likely out of alignment at best, or something more serious broken at worst. Harry fixed that for $16. Most of the places that will do an inexpensive CLA are not even looking for something like that. In the same vein Harry is examining all parts when it's open and will alert you to something worn that will need replacing sooner than later, or if something else is amiss, like a back that needs straightening (which Harry only charges $24 to fix), or replacement of a rusty and loose film feeler roller ($29) both of which could cause soft or out of focus images because of the film not held tightly or flat, or the film not being loaded right. Most of the places mentioned already for a cheaper CLA would most likely not look for those issues nor have the parts to repair them if needed. Harry only charges $134 for a shutter overhaul and that's usually about all you get from a standard CLA costing $100-200 elsewhere. He also thoroughly checks the transport which is another $134 for an overhaul if needed. Then, if as mentioned the back is bent or the front standard not straight (which a LOT of older 'flexes and 'cords have this issue, heck many, many TLRs do....let's face it most are 40+ years old!), if you really want sharp images it's best to have a full repair focusing, re-align, collimate & adjust focus ($110 from Harry). Yes, it all adds up but kidding yourself that a simple CLA of the shutter is going to put your 40-50 year old TLR into top-performing shape is just that.