Romex Pest Control
Professional pest control services in Lewisville, Texas
Serving Castle Hills, Old Town Lewisville & More

Lewisville Pest Control

Romex Pest Control technician providing professional pest control service in Lewisville, Texas

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.

Top Lewisville Pest Threats

  • Termites
  • Mosquitoes
  • Ants
  • Cockroaches
  • Spiders
  • Rodents

Same-Day Service • Sentricon® Certified • Satisfaction Guaranteed

Call (844) 955-2447
TDA Licensed
Sentricon® Certified
Denton
Step 1 of 5

What type of property needs service?

Note: We do not service trailer homes or vehicles.

Rollins, Inc. logo

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.

Why Does Lewisville, Texas Need Professional Pest Control?

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.

Notable Local Features

Lewisville Lake
Old Town Lewisville
Lewisville Lake Park
MCL Grand Theater
Elm Fork Nature Preserve

What Pest Problems Does Your Lewisville Neighborhood Face?

Castle Hills

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.

Old Town Lewisville

Historic downtown district with shops, restaurants, and restored buildings.

Older structures are susceptible to termites and occasional rodent incursions, especially in wet weather.

Valley Ridge

Residential area near major schools and parks, popular with families.

Nearby vegetation and drainage areas increase risk of spiders, ants, and occasional snakes.

Lakewood North

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.

Lewisville Pest Pressures: A Closer Look

What our licensed technicians see on the ground in Denton.

Termites in Denton County

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.

Mosquitoes in Denton County

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.

Ants in Denton County

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.

Cockroaches in Denton County

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.

Why Do Lewisville Homeowners Choose Romex?

Cross Timbers Expertise

Our technicians understand Lewisville's unique Cross Timbers ecosystem and how clay loam soils affect pest behavior and treatment effectiveness.

Lake Lewisville Specialists

We know how the lake's proximity creates ideal mosquito breeding conditions and tailor our treatments for waterfront properties.

Old Town Experience

Decades of experience protecting Lewisville's historic Old Town structures from termites and moisture-related pest issues.

DFW Network Advantage

Part of our extensive DFW service network, ensuring rapid response times and consistent quality across the metroplex.

Local Pest Control Regulations in Lewisville

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 Climate & Pest Activity

Local Climate Impact

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.

Why Lewisville Faces Unique Pest Pressures

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.

Lewisville Seasonal Pest Calendar

Spring (Mar-May)

High Activity
Mosquitoes
Termites
Ants
Spiders

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.

Summer (Jun-Aug)

High Activity
Mosquitoes
Wasps
Roaches
Rodents

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.

Fall (Sep-Nov)

Moderate
Fire ants
Rodents
Spiders

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.

Winter (Dec-Feb)

Moderate
Rodents
Occasional invaders (silverfish, earwigs)
Termites (indoors)

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.

💡Did You Know About Lewisville?

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.

Why Lewisville Trusts Romex Pest Control

Licensed & Insured

TDA-licensed professionals serving Denton since 2016. Full liability and workers' compensation coverage.

Targeted Treatment Approach

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.

Sentricon® Certified

Certified specialists in Sentricon® Always Active™ termite baiting. Essential protection for Denton properties.

Frequently Asked Questions: Pest Control in Lewisville

Straightforward answers to the most common pest control questions from Lewisville homeowners — from pricing and service schedules to local pest pressures.

Are mosquitoes worse in Lewisville due to the proximity of Lewisville Lake?

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Yes, the abundance of standing water around Lewisville Lake and the Elm Fork Trinity River creates ideal mosquito breeding conditions, especially during warm months.

What types of rodents are common in Denton County neighborhoods like Castle Hills?

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Norway rats and house mice are commonly reported in Lewisville's suburban neighborhoods, particularly where food sources and shelter are readily available.

Does Old Town Lewisville have unique pest concerns?

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Yes, the historic buildings in Old Town Lewisville are more prone to termite infestations and occasional rodent problems due to their age and construction materials.

How does Lewisville's climate affect pest activity year-round?

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The warm, humid climate extends the active seasons for mosquitoes, ants, and termites, making pest control a year-round concern.

Are there specific times of year when fire ants are most active in Lewisville?

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Fire ants become particularly aggressive and visible in spring and fall, especially after heavy rains that follow dry spells.

Is pest control regulated differently in Denton County compared to neighboring Dallas County?

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While regulations are similar, Denton County and the City of Lewisville may have specific local ordinances regarding exterior treatments and wildlife trapping, so it's best to consult local guidelines.

What pests are most common in the Castle Hills area of Lewisville?

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Castle Hills residents call Romex most often about termites, ants, and mosquitoes. Landscaped areas and water features attract mosquitoes and lawn pests such as grubs and fire ants. Our technicians recognize the specific pressures in Castle Hills — from mature landscaping to water features and wooded edges — and tailor treatments accordingly. If you live in Castle Hills, schedule a no-obligation assessment to map the pressure points on your property before the next seasonal surge.

Is pest control worth it in Lewisville, Texas?

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Professional pest control is worth the investment for most Lewisville homeowners because the year-round pressure from termites, ants, and mosquitoes in Denton County outpaces what over-the-counter products can handle. A trained technician finds entry points, harborage, and breeding sites homeowners miss, treats them with targeted EPA-registered products, and returns on an every-other-month to quarterly cadence so the residual barrier never weakens past effectiveness and small issues don't escalate into structural damage or repeat infestations. Romex pricing scales with the size of your home and the severity of the problem, and every recurring plan is backed by a free re-treatment guarantee between visits.

When is the best time of year to treat for termites in Denton County?

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The ideal first termites treatment window in Denton County is early spring (March–April) before populations peak. A follow-up in late summer or early fall locks in protection through the rest of the warm season. Romex's every-other-month and quarterly plans are built around this cycle, with each visit timed to catch the species driving the highest pressure at that point in the calendar — and spaced close enough that the residual product barrier stays effective between visits. One-time treatments are available but rarely provide lasting control in our regional climate.

How often should you spray for bugs in Texas?

▼
Romex recommends an every-other-month to quarterly spraying cadence for Texas homes — roughly every 60 to 90 days. That interval is tight enough that the residual product barrier stays strong against each seasonal pest wave, and loose enough to keep service affordable. Stretching past 90 days lets the active ingredients weaken to the point they become ineffective and pest populations rebuild inside the barrier before the next visit. Higher-pressure properties (near wooded edges, water features, or with an active infestation of termites) do best on every-other-month service; lower-pressure homes hold well on the quarterly plan. Spraying once or twice a year rarely holds up through a full Texas summer.

How much does pest control cost in Lewisville, TX?

▼
Pest control pricing in Lewisville depends on two main factors: the size of your home or property and the severity of the current pest pressure. A smaller townhome with routine seasonal activity looks very different from a larger single-family home in Denton County with an active termites problem. Romex provides free on-site quotes after a technician walks your property, and homeowners who commit to an annual plan typically receive the best per-visit pricing versus one-time treatments.

How much does termite treatment cost in Lewisville?

▼
Termite treatment in Lewisville is quoted based on the linear footage of your home's perimeter, the soil and slab conditions around the foundation, and how established the colony has become by the time inspection happens. Castle Hills homes in particular face elevated pressure because of mature landscaping and aging construction. A small preventive Sentricon® installation on a modest home is on the lower end, while a full liquid-barrier treatment plus bait-station monitoring for a larger property with active damage lands much higher. The accurate figure only comes out of a free on-site inspection — Romex never quotes termite work blind over the phone.

When should I start mosquito control in Lewisville?

▼
In Lewisville and the rest of Denton County, the ideal window to start mosquito control is early spring — typically March — before populations begin breeding in standing water. Properties near Lewisville Lake typically see the highest activity due to surrounding green space and water features. Romex mosquito programs in Texas heat and humidity run on roughly 21–28 day service intervals from March through October, with a lighter winter cadence in outlying months. Starting before you see the first bites of the season keeps pressure low all summer and is far more effective than reacting after a heavy hatch.

How often should my home in Lewisville be treated for pests?

▼
Romex recommends an every-other-month to quarterly service cadence for Lewisville homes. That range — roughly every 60 to 90 days — is the sweet spot: short enough that the residual insecticide barrier stays strong against termites, mosquitoes, and ants and seasonal pressure in Denton County, long enough to keep service affordable. Stretching past 90 days lets the active ingredients weaken to the point they become ineffective, and pest pressure rebounds before the next visit. Homes with higher pressure (near wooded edges, water features, or with an active infestation) do best on every-other-month service, while lower-pressure properties hold well on the quarterly plan.

Do I need rodent exclusion work on my Lewisville home?

▼
Rodent exclusion makes sense in Lewisville when a technician finds active entry points during inspection — gaps around rooflines, utility penetrations, garage door seals, or foundation weep holes. For homes with confirmed mouse or rat activity, sealing those entries is the only long-term fix; bait and traps alone just churn through a population that keeps re-entering. Romex quotes exclusion separately from routine service, and the scope depends on the size of the home, roof type, and number of access points found during the no-obligation assessment.

What factors affect pest control pricing in Lewisville?

▼
Three variables drive pricing for every Lewisville property: the size of your home and lot, the severity of the current infestation, and the specific pests being targeted. A 1,500-square-foot home on a standard lot on our every-other-month or quarterly maintenance plan sits at the lower end of the range, while a larger home in Denton County with active termites damage or a recurring pest like German cockroaches requires more product, more time on-site, and specialty treatments. The best way to get an accurate number is to schedule the free Romex inspection so a technician can walk your specific property before quoting.

Is professional pest control worth it in Lewisville?

▼
For most Lewisville homeowners, yes — the year-round pest pressure from Texas heat and humidity means DIY products rarely hold up through a full season. Castle Hills homes in particular face elevated pressure because of mature landscaping and aging construction. Professional service brings targeted, regulated products, a trained technician who finds entry points and breeding sites you'd miss, and an inspection-first approach that treats the root cause instead of surface activity. Romex backs every visit with a satisfaction guarantee: if pests return between scheduled services, we re-treat at no additional charge, so the recurring plan pays for itself in avoided damage and repeat DIY spend.

Are Romex pest control treatments safe for kids and pets in Lewisville?

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Romex treatments in Lewisville are designed around child- and pet-safe protocols — EPA-registered products, targeted application rather than broad indoor fogging, and clear dry-time guidance so your family can return to treated areas safely. Technicians apply products to exterior perimeters, cracks and crevices, and pest-pressure zones rather than open floor surfaces. If you have pets with specific sensitivities or very young children, tell the technician at the no-obligation assessment; we can route around sensitive zones or use lower-profile product classes without sacrificing effectiveness.

Verified Treatment Activity in Lewisville

Real pest treatment data from our Lewisville service records — not estimates.Updated July 2026

11,257
Total Treatments (90 days)
8,127
General Pest Control
3,130
Specialized Treatments

General Pest Control — Lewisville

Quarterly & preventive treatments for common household pests

General Pest Control
4,788treatments
Rising
Ants
921treatments
Stable
Cockroaches
684treatments
Stable
Spiders
586treatments
Rising
Fleas & Ticks
439treatments
Stable
Wasps & Stinging Insects
352treatments
Stable

Specialized Treatments — Lewisville

Targeted treatments requiring specialized protocols & equipment

TermitesSpecialized
1,341treatments
Stable
MosquitoesSpecialized
1,030treatments
Stable
RodentsSpecialized
447treatments
Stable
Bed BugsSpecialized
312treatments
Rising
Data sourced from Romex Pest Control FieldRoutes service records. Last synced July 2026. Counts reflect completed treatments in the Lewisville area over the past 90 days.

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Lewisville, Texas Service Area

Romex technicians route through Lewisville daily. The map below shows the city and surrounding area we serve.

Landmarks nearby:
Lewisville Lake
Old Town Lewisville
Lewisville Lake Park
MCL Grand Theater
Elm Fork Nature Preserve
Loading Lewisville service area…

Nearest Romex Pest Control Office

1606 109th St Suite A, Grand Prairie, Texas 75050

(469) 925-0400

Mon–Fri 8am–6pm, Sat 9am–2pm

Pests Active Now in Lewisville

Mosquitoes
Wasps
Roaches
Rodents

Summer activity — schedule preventive treatment now.

“Romex completely eliminated our Castle Hills mosquito problem before our pool party season. They really know this area!”

— Lewisville Customer

Lewisville Service Areas

  • ✓ Castle Hills
  • ✓ Old Town Lewisville
  • ✓ Valley Ridge
  • ✓ Lakewood North

Serving Near

  • • Lewisville Lake
  • • Old Town Lewisville
  • • Lewisville Lake Park
  • • MCL Grand Theater
  • • Elm Fork Nature Preserve
Lewisville is part of the Dallas Metro service area
View all Dallas area services
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Wondering about pricing? See our Lewisville Pest Control Cost Guide →

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