Roof rats are Arizona's most destructive rodent. They nest in your attic, chew through electrical wiring, and travel through citrus trees directly into your home. Once they're in, the damage starts immediately — and it compounds fast.
Roof rats are responsible for a significant portion of house fires caused by rodents, due to their habit of gnawing on electrical wiring. They also contaminate attic insulation with urine and feces, spread diseases, and can damage plumbing. An established colony must be eliminated — not just managed.
Roof rats (Rattus rattus) are slender, agile climbers — distinctly different from the larger Norway rat. They're the dominant rat species in Greater Phoenix, perfectly suited to Arizona's urban landscape. They travel along utility lines, block walls, and tree branches to reach upper levels of structures. The Valley's extensive citrus tree networks are one of their primary highways.
Once inside an attic, a roof rat colony causes serious damage. They chew through electrical wiring (creating fire hazards), damage HVAC ducting, gnaw on plumbing pipes, and contaminate attic insulation with urine and feces — which can also spread disease. Roof rats also gnaw on structural wood beams and stored items in attics.
Roof rats are also known disease vectors — they can transmit salmonella, leptospirosis, and rat-bite fever through direct contact or contamination of food and water sources. They're primarily a nocturnal species, so homeowners often don't see them directly — the sounds overhead at night are usually the first sign.
We conduct a thorough attic inspection to assess the extent of the infestation, identify nesting locations, and document damage. Exterior inspection identifies entry points along the roof line, eaves, vents, and utility penetrations.
We seal identified entry points with rodent-proof materials: galvanized steel mesh, metal flashing, and hardened sealants. Roof rats can return through any opening larger than a half-inch. We also trim tree branches that overhang the roofline (or advise you to).
Tamper-resistant bait stations are placed in the attic, along rat travel routes, and in exterior locations. We use bait formulations that eliminate rats without leaving large numbers of carcasses in difficult-to-access locations.
We follow up to confirm elimination, refill active stations, and check for new entry attempts. We continue monitoring until the attic inspection confirms no new activity. We also advise on insulation remediation if attic contamination is severe.
Our roof rat program uses tamper-resistant bait stations that contain rodenticide safely, minimizing exposure to non-target animals including birds of prey that hunt rats in Arizona neighborhoods. We prioritize exclusion as the long-term solution — reducing ongoing bait use once the structure is sealed.
Roof rats in Greater Phoenix are uniquely tied to the Valley's citrus tree infrastructure — a pattern we've tracked for years across Scottsdale, Mesa, and surrounding communities. We know which neighborhoods have high pressure, which entry points are specific to Arizona construction styles, and how to time treatments with seasonal population cycles. That local knowledge translates directly into faster, more complete elimination.
Exclusion-first roof rat elimination with full attic inspection and ongoing monitoring.
No pressure. No obligation. Just straight answers.
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