General Pest Control
Quarterly and one-time treatments that stop ants, roaches, spiders, silverfish and crickets at the entry points before they spread indoors.
- Ants
- Roaches
- Spiders
- Silverfish
- Crickets
Faith in God, integrity, in business excellence and service.
Newark, DE • Serving all of Delaware
Pest control that actually keeps them out
Grinnage Exterminating is a family owned, minority owned exterminator in Newark treating termites, bed bugs, rodents, roaches, mosquitoes and stinging insects for homes and businesses across all three Delaware counties.
Licensed in Delaware
State-licensed applicators following Delaware Department of Agriculture pesticide regulations on every job.
Family & minority owned
You deal with the owners, not a national call center. Same technician, same phone number, every visit.
Fast local scheduling
Based in Newark, so most of New Castle County gets same-week service and emergencies get priority.
Family & pet conscious
Targeted, low-impact materials placed where pests travel - not blanket-sprayed where your family lives.
Pest control services in Delaware
Residential and commercial treatment programs built around the pests that actually show up in Delaware's mid-Atlantic climate - humid summers, wooded lots and older housing stock.
Termite Inspection & Treatment
Eastern subterranean termites are the #1 structural threat to Delaware homes. We inspect, treat the soil barrier and monitor year-round.
- Subterranean termites
- Swarmers
- Wood-destroying insects
Bed Bug Treatment
Room-by-room inspection followed by targeted treatment and a mandatory follow-up so every life stage is eliminated, not just the adults.
- Bed bugs
- Eggs & nymphs
- Fleas
Rodent Control & Exclusion
Trapping paired with sealing the gaps mice and rats use to get in - the exclusion work is what keeps them from coming back each fall.
- Mice
- Norway rats
- Squirrels
Mosquito & Tick Reduction
Seasonal yard treatments for shaded harborage areas so decks, patios and play areas stay usable through Delaware's humid summers.
- Mosquitoes
- Deer ticks
- Gnats
Wasps, Hornets & Stinging Insects
Same-week nest removal from soffits, sheds, siding and eaves, plus preventive treatment of the spots they keep rebuilding on.
- Yellow jackets
- Bald-faced hornets
- Paper wasps
- Carpenter bees
Commercial Pest Control
Discreet, documented service for restaurants, rentals, warehouses and offices - with the paperwork inspectors ask for.
- Restaurants
- Property management
- Warehouses
- Offices
Nuisance Wildlife
Humane removal and exclusion for attic and crawlspace invaders, including damage repair recommendations and sanitation.
- Squirrels
- Raccoons
- Bats
- Groundhogs
How our service works
01
Free inspection
We walk the interior, exterior and crawlspace to identify the pest, the entry points and the conditions feeding them.
02
Written treatment plan
You get a flat-rate quote in writing, including what we treat, what we seal and what you should expect to see afterward.
03
Treat & protect
Interior and perimeter treatment, exclusion work where it's needed, and a follow-up visit to confirm the activity has stopped.
Serving every county in Delaware
Headquartered in Newark, with routes running the length of the state.
New Castle County
Frequently asked questions
- Do you service all of Delaware?
- Yes. We're based in Newark and run routes through all three counties - New Castle, Kent and Sussex - from Claymont down to Fenwick Island. Beach-area properties and rentals are handled on scheduled weekly routes.
- How much does pest control cost in Newark, DE?
- Most single-family homes fall between a one-time treatment and a quarterly plan, and the price depends on the pest, the size of the home and how far the infestation has spread. Every inspection and quote is free and flat-rate, so you approve the number before we start.
- Are termites really a problem in Delaware?
- Eastern subterranean termites are active statewide, and Delaware's humid summers and older housing stock make swarms common from March through June. An annual inspection is the cheapest insurance against structural repairs.
- Is the treatment safe for kids and pets?
- We use targeted applications in cracks, voids and along the exterior perimeter rather than broadcast spraying living areas. Your technician will tell you exactly how long to stay off a treated surface - typically until it dries.
- How fast can you get out here?
- Most New Castle County calls are scheduled within a few days, and stinging insects, rodents and bed bugs get priority. Call or text and we'll tell you the first available window on the spot.
Our Delaware service area
Grinnage Exterminating is based in Newark, DE. The outlined area is our core same-week coverage zone in New Castle County - and we run scheduled routes to every town in New Castle, Kent and Sussex County.
Not sure if you're in the coverage area? Call (302) 602-9239 - if it's in Delaware, we cover it.
From the Delaware pest blog
Seasonal guidance written for Delaware conditions - not generic national advice.
August 18, 2026
The Delaware Pest Control Calendar: What to Expect Month by Month
Delaware pests run on a schedule. Here's what shows up when, from March termite swarms to the October mouse migration, and what to do ahead of each one.
August 4, 2026
Termite Swarm Season in Delaware: What Those Wings on Your Windowsill Mean
Spring swarmers are the only stage of a termite colony most Delaware homeowners ever see. Here's how to tell them from flying ants and what to do next.
July 21, 2026
Mosquitoes and Ticks in Delaware: Why Your Yard Is Worse Than the Neighbor's
Mosquito and tick pressure is a property-level problem, not a neighborhood one. Shade, standing water and ground cover explain most of the difference.
Get a free inspection in Newark or anywhere in Delaware
Call or text Grinnage Exterminating and we'll tell you what you're dealing with, what it costs and when we can be there. Mon–Sat 7:00am – 7:00pm.