Mewlon 250 mirrors recoating

I know I could call to find out, but I also thought I'd ask in here. I've had my Mewlon for 6 years now with very heavy use. I am thinking the mirrors could use re-coating. I wonder if TNR can do the coatings? The biggest problem with being a planetary imager, there really isn't any down time to do this so I'd have to plan carefully.

Thanks!!
Paul