St. George summers regularly climb past 100 degrees, and winters are cold and dry by comparison. Flooring materials expand and contract with those swings, and carpet that was installed without enough tension to begin with is often the first thing to show it. Once a buckle forms, it rarely flattens back out on its own.
Low desert humidity works on carpet from a different angle. It draws moisture out of the backing over time, which can shrink it slightly and pull the edges away from the tack strip along the walls. That's one reason we check tack strip condition on every stretching call, not just the carpet itself.
We see the same pattern in homes throughout St. George, Washington, and the surrounding area. A carpet that buckled once because of under-tensioned installation tends to keep buckling until it gets a real power stretch. Saint George's climate makes that first proper stretch matter more than it would somewhere with milder weather.
Before choosing the work, read our carpet repair and stretching cost guide for examples and the details needed to confirm an estimate.