Squalls come over Wachusett's shoulder and drop onto the west side of Leominster with almost no warning — an inch on the hill before the flats know a thing happened. Mumaz Landscaping keeps the trucks ready for exactly that: plowing, clearing walks, salting the shaded pitch of a driveway where the sun never quite reaches. In the green months it is mowing on a schedule, trimming, edging and carrying the cleanup away. The hills make the work harder and the finished look better. Leominster, Westminster, Princeton, Sterling and Fitchburg are the range.