Wedding limousine service is rather different than just an hourly transfer. Rates of hourly transfer will not apply with the majority of limousine services that you contract. However there are days that are lower to rent a wedding service than others. Weekday bookings from Monday-Thursday are the best days to find a good deal on your wedding package. Friday and Saturday are the most sought out dates for limousine service so lack of availability will constitute a non negotiable rate. Sundays mornings are often good days to get a great deal since thigs tend to be slower on these days.
Many Limo services differ from how they tailor their packages but on the norm an industry standard three hour package is the minimum requirement for the wedding. A majority of services will include in their package price additional amenities such as (complimentary champagne, red carpet service, a tuxedoed chauffeur, balloons, just married insignia, complimentary beverages, etc).
Some services may offer other unique promotional items that might appeal to you so it's a good idea to ask around, many services will bend over backwards for the customer, so if you have an idea you think might be special, just ask!
A good rule of thumb when booking a wedding is to always get a contract! This is your binding agreement that states all the information that you wanted from you limousine service provider, and the amount of money the service will cost you, what your cancellation options are and what will happen should they fail to meet your expectations. You'll be surprised how many people will pick up the phone book a limo and wait for it to show up with their fingers crossed. Get the contract.