I am thinking of bidding on a maintenance contract with one of the municipalities in my area. The Bid process seems fairly simple, where basically the bidder lists what their contract labor price per hour will be for regular and overtime hours. Materials will used will be billed at a cost. It seems that which ever bidding contractor has the lowest hourly rate would be awarded the contract, provided they are qualified. The contract period is 2 years, so I am assuming that there should be some additional money in there for an increase in overhead. Is there any potential pitfalls to these agreements? We have been doing mostly contract work until now, but I would like the steady cash flow that a service agreement would provide. Looking for any pointers.