Thornton and Northglenn run into one another without a visible seam, and a route through both starts at first light, when the avenues are empty and the mountains are still just a gray silhouette. Lemon Property Services covers ground that way — several properties in a morning, each one left in order before the day's traffic picks up. Growing season means mowing, trimming, edging and cleanups; winter means plowing lots and drives, clearing walks, and putting down treatment where ice keeps coming back. Properties that people arrive at every day get judged in the first ten seconds from the parking space, so the entries and walk lines get real attention. Keep those right and the whole place reads well.