In the Mojave, the pests are already outside your door. The question is whether your home gives them an easy way in, and most valley homes do.
The Las Vegas Valley does not really freeze, so pests stay active twelve months a year. Summer surface temperatures run past 110 degrees for weeks, which pushes scorpions, roaches, crickets, and rodents toward the cooler, wetter zone around your foundation. Your home is an oasis of shade and moisture in a landscape that has neither. That is the whole problem in one sentence.
New construction makes it worse for a while. When a builder scrapes a desert lot, the scorpions and crickets that lived there do not vanish; they relocate to the nearest structure, which is your new house. That is why the first couple of summers in a fresh tract at Centennial Hills, Inspirada, or Aliante tend to be the buggiest. The fix is the same everywhere: stop treating the inside as the battleground and harden the outside instead.
This is the step that matters most and the one homeowners almost always underestimate. A bark scorpion can flatten through a gap about the width of a credit card, and a mouse needs a hole the size of a dime. Your house has more of those gaps than you think. Walk the perimeter and check these:
Sealing is also the backbone of real rodent control and exclusion. Trapping a rat without sealing the roof line and the weep screeds just clears a spot for the next one. The exclusion work is the part that actually lasts.
In the desert, water is the magnet. Roaches, crickets, and scorpions all need moisture, and a home leaks it in ways people overlook. Fix dripping hose bibs and irrigation leaks. Make sure the AC condensate line drains away from the foundation, not into a puddle beside it. Empty saucers under potted plants, and do not let the drip system run so long that the soil against the wall stays damp. Pull pet water bowls inside overnight. Every standing source of water you remove is one less reason for a pest to choose your wall over the neighbor’s.
Rock landscaping beats turf for pest pressure, but loose rock against the foundation is a perfect scorpion and cricket hotel. The goal is a clean, dry, defensible band right at the base of the house. Keep decorative boulders and dense ground cover a foot or two off the wall. Trim shrubs and tree limbs so nothing touches the structure, because branches are bridges, especially for roof rats heading to the attic. Move firewood, brick stacks, and stored clutter away from the wall and up off the ground. Switch exterior lights to warm or yellow tones; the bright white bulbs pull in the insects that scorpions and black widows feed on, so cooler lighting quietly starves the predators.
The valley has a season, and ignoring it costs you. Scorpions and crickets ramp up from March through October, and the monsoon storms from July to September are the worst stretch. When the soil saturates overnight, ground-dwelling pests come up and head for the nearest dry shelter, which is often a garage or a ground-floor room. A perimeter that is sealed and treated in spring is ready before that wave hits. A home that waits until it finds a scorpion in the kitchen in August is already behind.
This is also why a single treatment rarely holds in the desert. The barrier on a wall breaks down over weeks of heat, sun, and irrigation, and the pressure from open land never stops. Many valley homes do best on a quarterly general pest control plan that keeps the perimeter intact through the summer, and homes on the desert-facing edges of Henderson or out near Red Rock often add scorpion control on top. You can do a lot of the prevention yourself; the recurring barrier and the food-source treatment are the parts that need a licensed crew and the right products.
If you want one routine to run on, this is it. Each spring, walk the perimeter and reseal what has opened up over the winter. Replace the garage threshold seal and door sweeps when daylight shows under them. Before monsoon season, clear the foundation band and confirm the drip system is not soaking the wall. Through the summer, keep lights warm, knock down any webs, and do not let clutter pile up along the side yards. Do that, pair it with a maintained perimeter, and your home stops being the easy target on the block.
Sealing the gaps where pests enter does more than any spray. Weep screeds, garage-door gaps, utility penetrations, and door sweeps are the main highways into a valley home. Close those and a treated perimeter has far less to fight. Sealing is the part most DIY efforts skip.
Rock and gravel landscaping is better than turf, but it is not pest-proof. Scorpions and crickets shelter under loose rock and decorative boulders against the wall, and drip irrigation creates the moisture they need. Keep a clear, dry band right against the foundation and pests have nowhere to stage.
Spring, before the summer push. Scorpions and crickets ramp up from March, and monsoon storms from July to September drive everything indoors. A sealed and treated perimeter set up in spring holds through the worst of the season. Many homes do best on a quarterly plan that keeps the barrier intact year round.
Sealing helps enormously, but bark scorpions can squeeze through a gap the width of a credit card, so no home seals perfectly. The reliable approach pairs exclusion with treating the insects scorpions hunt and a maintained perimeter. Sealing plus food-source control is what actually keeps numbers down.
It falls under general or scorpion service. A first general visit usually runs $125 to $200, scorpion control usually starts at $150 to $300, and rodent control with exclusion runs $250 to $600 depending on how much sealing the structure needs. See the cost guide for the full ranges.
We are a licensed, local crew. We seal the entry points, treat the food source, and keep the barrier intact so the desert stays outside. A first general visit usually runs $125 to $200, with recurring quarterly service around $90 to $150.
Last updated: May 28, 2026.
