Erie Home Improvement offers a one year warranty:

On any work completed by EHI will be warranted for one year.  Any peeling or blistering on exterior and interior painting projects from any vertical surfaces will be repaired at no cost to the customer.  This includes all labor and material costs. Horizontal surfaces or surfaces demonstrating rot or unusually high moisture content (25% moisture content or higher as shown by a moisture meter) due to improper construction or inadequate drainage are excluded from this blanket warranty. Those surfaces will however be repaired by Erie Home Imrpovement in a timely manner, regardless how small an area the problem encompasses, at a cost to the warrantee of $35 per hour plus materials.