🐜 Official Rankings
10 Best Pest Control in Merrimack, NH (August 2026)
We compared 10 pest control serving Merrimack and Hillsborough County, New Hampshire, and ranked the top providers by verified reviews, ratings, and local reputation — 2,288 customer reviews in all.
The 10 listed below hold an average rating of 4.8 out of 5, led by Mosquito Squad of Southern New Hampshire. Updated for August 2026.
- Pest Control ranked
- 10
- Average rating
- 4.8★
- Reviews analyzed
- 2,288
- Area code
- 603
Mosquito Squad of Southern New Hampshire
⭐ 4.9 · 1354 reviews
255 Daniel Webster Hwy, Merrimack, NH 03054
Garfield Pest Control
⭐ 4.9 · 180 reviews
6 Hemlock St, Merrimack, NH 03054
Depot Farm Stand
⭐ 4.8 · 133 reviews
668 Daniel Webster Hwy #2712, Merrimack, NH 03054
Precision Pest Service, LLC
⭐ 4.8 · 46 reviews
5 Robin Hood Dr, Londonderry, NH 03053
Grass Gobblers Lawn Care & Landscaping
⭐ 4.7 · 47 reviews
1 Reo Ln, Londonderry, NH 03053
B H Labrie Landscape Co Inc
⭐ 4.7 · 26 reviews
660 Daniel Webster Hwy, Merrimack, NH 03054
Tractor Supply Co.
⭐ 4.4 · 303 reviews
515 Daniel Webster Hwy, Merrimack, NH 03054
Pest Control in Merrimack — FAQs
How do I choose the best pest control company in Merrimack, NH?+
Compare local companies on verified reviews, confirm they're licensed in New Hampshire, and check that they treat your specific problem — insects, ticks, mosquitoes, or rodents. Top-rated options serving Merrimack include Garfield Pest Control and Mosquito Squad of Southern New Hampshire. Ask whether they offer one-time treatment or recurring seasonal plans.
How much does pest control cost in Merrimack?+
Pricing depends on the pest, the size of your property, and whether you need a one-time visit or ongoing service, so most Merrimack companies quote after an inspection. Seasonal mosquito and tick programs are priced differently from indoor pest treatment — getting a couple of quotes helps.
Who handles mosquitoes and ticks in Merrimack, NH?+
For outdoor mosquito and tick control, look for a provider offering seasonal barrier treatments. Mosquito Authority and Mosquito Squad of Southern New Hampshire both serve the Merrimack area for exactly this kind of program.
What areas do Merrimack pest control companies serve?+
Merrimack is in Hillsborough County and uses the 603 area code with ZIP code 03054. Most companies listed here also serve surrounding Hillsborough County towns like Nashua and Bedford, so confirm your address when booking.
Pest Control listed here serve Merrimack, Hillsborough County, and nearby ZIP codes including 03054.