Many customers try to wait until the spring when it's raining often and they have to do something right now. Most competing quotes will typically be higher at this time of year. Winter months are the opposite of this. We try to avoid shingle application during freezing temperatures, but can still install when it's cold (35-60 degrees). Shingles can sometimes appear wavy in locations while it's cold out; once spring rolls around and temperatures get into the 70's that goes away and they lay completely flat.