http://www.davidthelocksmith.com/pricing.html

Service 8am-6 pm, M-Sat | 6am-8am & 6pm-9pm, all day Sunday | 9 pm to 6 am, holidays
Lockout - Residential or business (1st lock) $40 $60 $80
Lockout - Residential or business (each additional lock) $15 $20 $30
Lockout - Residential or business - destructive entry (labor and parts for lock replacement will be additional) $30 $45 $60
Lockout - Auto $36 $54 $72
Lock change – replacement - Residential or business (parts additional) $12 $18 $25
Lock change – rekey - Residential or business - 1st lock $40 $60 $80
Lock change – rekey - Residential or business - each additional $12 $18 $24
Lock installation – doorknob, rim lock, deadbolt - Residential or business (parts additional) $40 $60 $100
Lock installation – mortise lock - Residential or business (parts additional) $120 $180 $250
Lost mailbox key - open and replace lock and/or key $30 $45 $60
Most key duplicates (first two typically included) $3 $3 $3