These operate on a very specific district basis, almost street by street, so you'll have to find the right office to solve your problem. Your best bet is to look in the Abonent, Ves St. Pbg. 2000, or St. Pbg. Yellow Pages 2000.
Many people look for good individual craftsmen to get work done more quickly.
A-Z Index AmRuss ST Construction and finishing by European standard Levashovskiy prosp. These operate on a very specific district basis, almost street by street, so you'll have to find the right office to solve your problem. Your best bet is to look in the Abonent or St. Pbg. Yellow Pages 97. The second major provider of repair services is Peterburgskie Zori who provide all sorts of services on an individual craftsman basis, from locksmiths and electricians to carpenters and painters.