Lewisville, Texas is a vibrant city in Denton County, known for its proximity to Lewisville Lake and its location along the Elm Fork of the Trinity River. The city boasts prominent recreational spots like Lewisville Lake Park and Old Town Lewisville, a revitalized historic district. Lewisville is also home to major employers such as the Lewisville Independent School District and the corporate facilities for JPMorgan Chase. From Lewisville Lake to Old Town Lewisville, Romex treats Denton properties with proven local expertise and same-day response.
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Locally Managed & Operated. Backed by National Resources.
Romex joined the Rollins, Inc. family in 2026, but Romex continues to operate independently—same local Lewisville management, same technicians, same culture. Rollins acquires brands and lets them run with their established operations. What you get: the same locally managed Romex service, now backed by world-class training and resources. We also offer all-natural pest control options upon request—just ask your technician.
Population: ~113,500 · Denton
Lewisville, Texas is a vibrant city in Denton County, known for its proximity to Lewisville Lake and its location along the Elm Fork of the Trinity River. The city boasts prominent recreational spots like Lewisville Lake Park and Old Town Lewisville, a revitalized historic district. Lewisville is also home to major employers such as the Lewisville Independent School District and the corporate facilities for JPMorgan Chase.
Situated within the Cross Timbers ecological region, Lewisville features gently rolling terrain with soils varying from clay loam to sandy loam, favorable for native grasses and hardwoods. The city sits at an elevation of approximately 550 to 600 feet and is bordered by Lewisville Lake to the north and the Elm Fork Trinity River to the east. The proximity to these water bodies and riverine corridors provides ideal habitats for mosquitoes, ants, and rodents, especially in flood-prone zones.
A master-planned community in southern Lewisville, known for upscale homes and landscaped parks.
Landscaped areas and water features attract mosquitoes and lawn pests such as grubs and fire ants.
Historic downtown district with shops, restaurants, and restored buildings.
Older structures are susceptible to termites and occasional rodent incursions, especially in wet weather.
Residential area near major schools and parks, popular with families.
Nearby vegetation and drainage areas increase risk of spiders, ants, and occasional snakes.
Neighborhood close to Lewisville Lake, offering easy access to water recreation.
Proximity to the lake heightens mosquito populations and can bring occasional raccoon or opossum activity.
What our licensed technicians see on the ground in Denton.
Subterranean termites are the dominant species targeting homes throughout Lewisville and Denton County. Older properties in Castle Hills are especially vulnerable, where soil moisture and wood-to-ground contact create ideal conditions for Eastern subterranean colonies. Romex inspectors have identified active infestations within a few miles of Lewisville Lake, typically in homes built before 2000 with untreated crawl spaces or slab cracks. Swarmer flights in March through May provide the clearest early warning. We use Termidor HE liquid treatments and Sentricon bait stations to protect the entire structure rather than spot-treating visible damage.
Prevention tip: Schedule an annual professional termite inspection; WDO damage in Lewisville typically goes undetected for 3–5 years before visible signs appear.
Mosquito populations in Lewisville surge from April through October, driven by standing water that collects in gutters, bird baths, bromeliad pockets, and drainage ditches. Old Town Lewisville sees particularly high pressure because older structures are susceptible to termites and occasional rodent incursions, especially in wet weather.. Our service crews have documented heavy activity within 500 feet of Old Town Lewisville, where untreated vegetation provides daytime harborage for Aedes albopictus and Culex quinquefasciatus. We apply In2Care stations and barrier treatments with Talstar P that last up to 30 days per application.
Prevention tip: Clean gutters at least twice per year; clogged gutters are the #1 overlooked breeding site we find in Lewisville yards.
Red imported fire ants (Solenopsis invicta) are the dominant outdoor ant species in Denton County, forming visible mounds after every significant rain. Turfgrass areas near Lewisville Lake can host 50+ mounds per acre during wet springs. Indoors, the picture shifts: odorous house ants, acrobat ants, and — in older wood-framed homes — carpenter ants account for most kitchen and bathroom trails. Castle Hills reports trend heavily toward fire ants on the outside and odorous house ants on the interior. Our treatment uses Top Choice fipronil granules outside for season-long fire ant control, plus non-repellent Termidor SC band applications on entry points.
Prevention tip: Seal gaps around exterior pipe penetrations and weather-stripping; most indoor ant trails originate at these entry points.
Lewisville cockroach populations break into two groups: large outdoor-origin species (American, Smokybrown, Oriental) that wander in during temperature swings, and the German cockroach, an indoor-only pest spread by infested packaging and secondhand appliances. We see Smokybrown activity most often in wooded areas of Castle Hills, particularly in attics where they enter through roof vents and soffits. Commercial accounts near Lewisville Lake occasionally deal with chronic German cockroach issues from high-volume food waste. Romex uses a two-phase protocol: Demand CS perimeter spray outdoors and Maxforce FC Magnum gel indoors.
Prevention tip: Keep a screen or mesh cover on floor drains in garages and utility rooms; American roaches routinely enter through these.
Our technicians understand Lewisville's unique Cross Timbers ecosystem and how clay loam soils affect pest behavior and treatment effectiveness.
We know how the lake's proximity creates ideal mosquito breeding conditions and tailor our treatments for waterfront properties.
Decades of experience protecting Lewisville's historic Old Town structures from termites and moisture-related pest issues.
Part of our extensive DFW service network, ensuring rapid response times and consistent quality across the metroplex.
All Romex technicians are fully licensed by the Texas Department of Agriculture. Many Lewisville neighborhoods have HOA landscaping requirements that we work within while maintaining effective pest barriers.
Lewisville has a humid subtropical climate, with average summer highs around 95°F and winter lows near 35°F. The city receives about 38 inches of rainfall annually, contributing to high humidity, especially in late spring and early summer. This warm, moist climate encourages the proliferation of mosquitoes, termites, and other pests during much of the year.
Lewisville's location near Lewisville Lake and the Elm Fork Trinity River creates ideal breeding grounds for mosquitoes and water-loving pests. The city's mix of suburban neighborhoods, mature trees, and abundant green spaces also supports thriving populations of ants, rodents, and occasional wildlife intruders. Clay and loam soils, combined with periodic heavy rains, increase termite activity and provide habitats for burrowing pests.
Rising temperatures and increased rainfall trigger termite swarms and mosquito breeding, especially near Lewisville Lake and creek beds. Ants and spiders become more active in homes and yards as they search for food and nesting sites.
Hot, humid conditions sustain high mosquito activity around water sources. Wasps and roaches thrive in the heat, and rodents may seek cooler indoor spaces or shaded yards.
Fire ant mounds become more visible after rain, and rodents start moving indoors as temperatures drop. Spiders are also more noticeable in gardens and homes during this period.
Cooler weather drives rodents and occasional pests inside, especially in older neighborhoods. While outdoor pest activity slows, termites may remain active indoors where it’s warm.
Pro Tip: Lewisville homeowners save up to 40% with year-round protection plans that proactively treat for seasonal pests before they become infestations.
The construction of Lewisville Lake in the 1950s dramatically altered local pest populations, drawing in more waterfowl and increasing mosquito breeding sites, which led to early organized pest control efforts in the area.
TDA-licensed professionals serving Denton since 2016. Full liability and workers' compensation coverage.
Professional pest control tailored to Lewisville's local conditions. Targeted treatments that minimize chemical use while maximizing effectiveness. We also guide homeowners on IPM strategies they can implement between visits.
Certified specialists in Sentricon® Always Active™ termite baiting. Essential protection for Denton properties.
Straightforward answers to the most common pest control questions from Lewisville homeowners — from pricing and service schedules to local pest pressures.
Real pest treatment data from our Lewisville service records — not estimates.Updated May 2026
Quarterly & preventive treatments for common household pests
Targeted treatments requiring specialized protocols & equipment
Free quote • No obligation • Same-day service available
Verified reviews from Lewisville and surrounding areas
Reviews are from Google Business Profile and updated weekly
See all reviews on GoogleRomex technicians route through Lewisville daily. The map below shows the city and surrounding area we serve.
Spring activity — schedule preventive treatment now.
“Romex completely eliminated our Castle Hills mosquito problem before our pool party season. They really know this area!”
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