Prevention is the part of rat control that actually keeps a home rat-free. Removing rats clears today's problem, but if the gaps that let them in stay open, new rats will find them, especially in Dallas, where roof rats travel between properties along fences, trees, and utility lines. Exclusion seals the structure so rats cannot get in, and prevention removes the food, water, and shelter that draw them to your property in the first place.
The pros who handle it inspect the home the way a rat would approach it, looking for every gap a quarter could fit through: around pipe and cable penetrations, along the roofline and soffits, at vents, garage doors, and foundation cracks. They seal those openings with durable, rodent-resistant materials, then advise on the yard and habits that keep pressure low, from trimming branches that overhang the roof to securing trash and pet food.