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50+ Years
experience
Emergency
services
Your Trusted Pest Control Partner in New Hampshire & Southern Maine
GSC Pest Management has been safeguarding homes and businesses in the Seacoast NH and Southern Maine regions for over 60 years. Founded in 1964, our family-owned business combines generational expertise with modern pest control techniques to deliver safe, effective, and environmentally conscious solutions. Our team of certified professionals specializes in Integrated Pest Management (IPM), prioritizing prevention and targeted treatments to address infestations while minimizing chemical use. With three generations of leadership, we maintain a legacy of reliability, transparency, and customer-centric service.

Our commitment to ongoing training ensures we stay ahead of evolving pest behaviors and industry advancements. From residential to commercial properties, we provide tailored programs for rodents, termites, wasps, bed bugs, and more. Our 15-year termite service agreements and proactive SNOB Program underscore our confidence in long-term protection. Customer satisfaction remains our cornerstone, as evidenced by decades of trust and testimonials highlighting our responsiveness, professionalism, and ethical approach.
Services
Residential Pest Control Commercial Pest Control Termite Treatments Rodent Control Mosquito & Tick Control Wasp Removal Bed Bug Treatment Fly Control Cockroach Extermination Flea Management
Details
  • Year established: 1964
Highlights and features
  • We offer 60+ years of family-owned pest control expertise
  • Our technicians use EPA-registered, pet-safe treatment methods
  • We provide 24/7 emergency response for urgent infestations
  • Our SNOB Program guarantees free follow-up services annually
  • Third-generation leadership ensures proven, ethical service standards
What people say
Exceptionally professional Quick and effective Responsive and knowledgeable Thorough inspections Transparent pricing
Services
Residential Pest Control
Our residential pest control programs protect homes from common invaders like ants, spiders, and rodents. Using Integrated Pest Management strategies, we combine preventative barriers with targeted treatments to address current infestations and prevent future issues. Each plan includes seasonal inspections and customized solutions tailored to your property's specific needs.
Termite Treatments
GSC offers comprehensive termite protection through liquid termiticides and baiting systems. Our certified technicians conduct thorough inspections to identify entry points and active colonies. The 15-year service agreement includes annual inspections and re-treatment as needed, providing long-term peace of mind for homeowners in termite-prone areas.
Rodent Control
Our rodent control services address mice and rat infestations through exclusion techniques and strategic baiting. Technicians perform detailed inspections to identify entry points, then implement sealing solutions and monitoring systems. The Rodent Flex Program allows seasonal adjustments to control measures, adapting to changing pest pressures throughout the year.
Mosquito & Tick Control
Yard treatments target mosquito and tick populations through residual adulticide applications. Our technicians focus on high-risk areas like woodlines and recreational spaces, providing 3-4 weeks of mosquito control and seasonal tick prevention. Monthly programs are available for properties requiring sustained protection during active seasons.
Wasp Removal
Professional wasp and hornet nest removal services ensure safe elimination of nests located in eaves, trees, or wall voids. Our technicians use protective equipment and targeted treatments to eradicate colonies while minimizing risks to residents. Preventative measures are recommended to deter future nesting in vulnerable areas.
People
Tom Aspinwall
Former Owner
Tom Aspinwall led GSC Pest Management from 1990 until 2024, expanding its customer base to over 3,000 clients while maintaining Arnold Gilmore's founding principles of integrity and service excellence. He retired after 34 years of leadership.
Tyler Aspinwall
Co-Owner
Tyler Aspinwall co-owns GSC Pest Management since 2024, bringing modern pest control expertise while upholding family values. He specializes in wasp removal and customer service, known for prompt, transparent solutions that prioritize client safety and satisfaction.
Torey Aspinwall
Co-Owner
Torey Aspinwall became co-owner in 2024, focusing on operational efficiency and staff training. He ensures GSC maintains industry-leading standards through continuous education programs and adoption of the latest pest management technologies.
David Ayotte II
Technician
David Ayotte II provides hands-on pest control services, specializing in rodent exclusion and inspection. With extensive field experience, he delivers practical solutions while educating customers about preventative measures and environmental considerations.
Deb Osgood
Office Manager
Deb Osgood manages GSC's administrative operations, ensuring smooth communication between technicians and clients. Her organizational skills maintain efficient scheduling and customer follow-up, contributing to the company's reputation for reliable service.
Questions
What areas do you service?
We serve the Seacoast region of New Hampshire and Southern Maine, covering both residential and commercial properties.
Do you offer emergency pest control?
Yes, we provide 24/7 emergency response for urgent infestations like wasp nests or sudden rodent activity.
Are your treatments pet-safe?
We use EPA-registered products and inform customers about pet safety precautions before any application.
How often should I schedule pest control?
Most homes benefit from bi-annual barrier treatments, with additional services tailored to specific pest pressures.
What's included in your termite warranty?
Our 15-year termite agreement includes annual inspections and re-treatment if termites reappear.
Do you provide free estimates?
Yes, we offer complimentary inspections and customized treatment quotes for all pest control needs.