Make sure that you have the estimate - and that you understand it - in writing where possible. Movers have "industry lingo" which has confused my buyers in the past, generally around which hour is the first hour, initial charges, wrapping/packing fees, delays, storage, etc. Ask questions to make sure you understand the pricing policy, including tiping!
Best of luck, Marks and Marathon are good choices.
Matt Heisler is a real-estate professional and owner of Heisler & Mattson Properties. He has been selling residential real-estate for over 10 years. He has given several talks on real estate, including presentations on first-time buyer tips & tricks, and profiting in real estate investing in Massachusetts. As a Vanderbilt University alumnus, he is proud to serve the communities of Natick, Framingham, Medfield, Millis, Holliston, Hopkinton, Southborough, Westborough, Northborough, Grafton, Marlborough, Shrewsbury, Worcester, Milford, Charlton, Northbridge, Sutton, Hudson, Sudbury, Clinton, Boylston, and West Boylston. His company website can be found at http://www.bjheisler.com,
and his Metrowest Blog can be read at http://HomeSellingInMass.net.
*All information is posted in good faith and is assumed to be reliable, but may rely on third party information sources.