Sam was a very caring and professional person. Excellent work.
Lucia Carlisle
Lucia Carlisle
Chris at 603 Pest is excellent. He is friendly, thorough, and knowledgeable. I have complete confidence in him.
Barry Rogers
Barry Rogers
Very thorough the tec made sure he covered the area well while spraying.
Johnny Garcia
Johnny Garcia
Great service. Even with construction on our street our problem was eliminated the same day without contaminating our small pond. I apologize for having to instruct the driver to drive the wrong way on a one way street to get to the site. I would recommend this company to anyone.
Denis Methot
Denis Methot
Chris explained what he was doing, very helpful
Martha Torrey
Martha Torrey
Friendly, responsive and helpful. They answered all my questions and took care of our ant problem quickly. I highly recommend them.
Jacki Murray
Jacki Murray
Wonderful so far. We are new customers.
Kathy Carlson
Kathy Carlson
I had discovered 2 places on our home that had wasps. One wasan large external hive, the other was internal (unseen) inside a window sill between house and siding. Both locations were 2nd floor or higher. Additionally, I had a time limit to complete this job due to contractor work soon to be done.From arrival, Dan was here for a little over an hour. After review, he identified 2 different species of wasps and completed treatment for both locations that was appropriate for each.He treated only what needed to be done. (We did not want to harm any wildlife.) It was a difficult and dangerous job.At the end, Dan advised us for our own protection and safety with regards to the wasps and the treatments.Well done and thanks to Dan for ridding our property of a dangerous pest and leaving it environment friendly.
Carl Waranowski
Carl Waranowski
Chris was thorough spraying around the outside of the house and barn and inside where access permitted. He also had no issue donning the bee suit on a 90 plus degree day to eliminate a wasp nest.
Joe Kay
Joe Kay
Excellent and quick service. I called them for a large yellowjacket nest near my garage door, they showed up about an hour after my call and took care of it. I highly recommend 603 Pest Control and would use them again.
Eric Pavao
Eric Pavao
Wouldn't use anyone else. They fixed our carpenter bee issue back in May, and we had got them over just today for another minor issue. Dan, the technician who came was really friendly, answered all my questions, and further adds to the positive experiences I've had with 603 Pest.Good companies should be recognized for being good; will always recommend them.
Evan M.
Evan M.
They are awesome! They always come out on time. They are very pleasant people to work with their technicians are always clean and polite. I would recommend them to anyone needing pest control.
Michael Shappell
Michael Shappell
Reliable, professional
Carl winer
Carl winer
I called the company in the am and they were at the house that same day to remove a large wasp nest from my garden. Excellent service and professional. Thank you for not having to get stung again! Highly recommend.
David Syrek
David Syrek
Sam was amazing! He was prompt, personable and very knowledgable about our issue. Before he performed the wasp and bee extermination he explained every step he was going to take and the reason why. When he was finished he explained what steps we could take in the future, including the locations and timeframes for both bees and wasps nesting habits, to mitigate the problem. You were the only company that was able to respond the same day I called and having your technician there the same day made all the difference in the world for us. I highly recommend this company and will utilize your services in the future. Sam is absolutely a credit to your company! We thank you and Sam for your prompt and professional response!
Karen Guilbeault
Karen Guilbeault
I called in the morning, they were there about an hour later, removed a large yellow jacket nest, sprayed the perimeter of our house and left. Tech was friendly and professional. From my phone call to completion was less than 3 hours! I highly reccomend.
Eric Parker
Eric Parker
The exterminator, Sam, was very helpful and friendly, arrived early which was wonderful and I am very happy with the service.
Marie Eldib
Marie Eldib
Sam was wonderful! Very professional and thorough!
Kate A
Kate A
Always professional, friendly, and on time. Never have any issues with ants or wasps ever since I started hiring 603 Pest. Great company at a great price.Dan was my specialist and I love having him. I always know things will get done right!
Rachel Waszczuk
Rachel Waszczuk
Dan was very polite, helpful and thorough.
Stephanie
Stephanie
Chandler was excellent. He sprayed my entire yard, sides of house, woodsy area and playground area for mosquitoes and ticks. This will now become a monthly service!!
jpesce103
jpesce103
Completely satisfied with Sam's work. He was courteous and answered any question I threw at him. Did not rush and pointed out things I was not aware of. Sam is a great representative for your company.
Eileen Cuff
Eileen Cuff
Absolutely top notch experience working with Sam who was prompt, courteous, knowledgeable, and professional. 603 Pest continues to effectively address the problems that crop up with ants in a newly constructed home.
Patrick
Patrick
Dan the tech was on time, explained all the work he was going to performed and pointed out cautionary steps after service. Professional and respectful of home cleanliness. Wore face mask and shoe covers. Very pleased with his service.
Harish Panchal
Harish Panchal
Excellent experience. Office staff (Jen) responded to our email inquiry immediately, answered all of our questions and explained everything in detail. Dan (our service technician), is so knowledgeable and professional. We are extremely pleased with the service. Very happy we chose 603 Pests.
Mary P
Mary P
Sam is always so considerate and timely! He made sure we didn’t have any pets that needed to go out before treatment since they wouldn’t be able to for 2 hours while it dries! Would recommend him to anyone! We haven’t had a mouse since his first visit!
Amie Zinn
Amie Zinn
Jeff and Dan are very professional. They showed up on time, reviewed the process and what was going to take place. They answered all my concerns. Got right to it and finished in a timely manner. The process was very clean and neat and I felt I made the right choice. Highly recommend 603 Pest Control.
Paul Scafidi
Paul Scafidi
Dan always is real thorough, professional, does a great job. He’s the best!
Michael Zoltko
Michael Zoltko
My technician was Chris who was very professional and personable. Explained what he thought was going on and told me everything he did for our house. Highly recommend 603 Pest.
Michael Kelley
Michael Kelley
I was worried about having bed bugs which is why I wanted an inspection. I've apparently had an unexplained allergic reaction to something. Chris was professional, thorough and pleasant. He reassured me that there was no infestation. The peace of mind Chris provided was worth the time and money. Thank you.
Gail Herman
Gail Herman
Chris is always informative, personable and professional!
Greg Harisiades
Greg Harisiades
We having been using 603 Pest for over a year now. Decided to do the quarterly maintenance plan. They automatically schedule the appointment every 3 months but changing it is no big deal if needed. We also did the monthly mosquitoe/tick spraying last summer. Every single person that has come for the services has been super nice, they explain what they are doing, and they make sure to ask if we have any additional questions or concerns. Super happy with the effectiveness of services and the excellent customer service.
Shannon Weigler
Shannon Weigler
Dan was great. We did a walk through of the area affected and came up with a game plan. Very professional company from inquiry to service! Thanks 603.
Normand Martel
Normand Martel
Absolutely phenomenal service. From the office to the technician, my wife and I were very impressed. We had a field mouse problem in our basement that I couldn't quite get to the bottom of, and I'm so glad I finally called 603 Pest and handed it off to them. After their first visit I noticed a complete stop in activity (after catching one leftover mouse that was already likely in our home). I set a trap again in our highest-traffic space and never caught another. Problem solved.
Adam Zobel
Adam Zobel
Dan did a great job of checking for entrance spots for rodents (mice).Good suggestion to get a door sweep for the door from garage entering into basement. thanks for our expertise Dan!!
Brian R Kinkade
Brian R Kinkade
Dan explained everything he planned to do. He showed us points of entry both outside the house and throughout the basement. Very informative.
Gail MacGuire
Gail MacGuire
From my conversation with Jennifer to schedule service, which they were able to do on the same day as my call, to Sam our technician we are super pleased with 603 Pest Control Services! Really A+ all around!
beth deroy
beth deroy
Very pleased with this service. Dan was extremely professional and knowledgeableHe solved the problem quickly. Will use 603 again if I have another problem.
David Colby
David Colby
Very detailed and thorough, quite professional. Took the time to explain things to me which I appreciated.
Tools To Go LLC
Tools To Go LLC
603 Pest Control has been treating my house for awhile now and each time they come out they are always so knowledgeable and pleasant to work with. I have trust in them with my children and pets while treatment is being done. They have gone above and beyond with their services and always strive to ensure that my home is taken care of.
Karly Lambert
Karly Lambert
Sam was a very caring and professional person. Excellent work.
Lucia Carlisle
Lucia Carlisle
Chris at 603 Pest is excellent. He is friendly, thorough, and knowledgeable. I have complete confidence in him.
Barry Rogers
Barry Rogers
Very thorough the tec made sure he covered the area well while spraying.
Johnny Garcia
Johnny Garcia
Great service. Even with construction on our street our problem was eliminated the same day without contaminating our small pond. I apologize for having to instruct the driver to drive the wrong way on a one way street to get to the site. I would recommend this company to anyone.
Denis Methot
Denis Methot
Chris explained what he was doing, very helpful
Martha Torrey
Martha Torrey
Friendly, responsive and helpful. They answered all my questions and took care of our ant problem quickly. I highly recommend them.
Jacki Murray
Jacki Murray
Wonderful so far. We are new customers.
Kathy Carlson
Kathy Carlson
I had discovered 2 places on our home that had wasps. One wasan large external hive, the other was internal (unseen) inside a window sill between house and siding. Both locations were 2nd floor or higher. Additionally, I had a time limit to complete this job due to contractor work soon to be done.From arrival, Dan was here for a little over an hour. After review, he identified 2 different species of wasps and completed treatment for both locations that was appropriate for each.He treated only what needed to be done. (We did not want to harm any wildlife.) It was a difficult and dangerous job.At the end, Dan advised us for our own protection and safety with regards to the wasps and the treatments.Well done and thanks to Dan for ridding our property of a dangerous pest and leaving it environment friendly.
Carl Waranowski
Carl Waranowski
Chris was thorough spraying around the outside of the house and barn and inside where access permitted. He also had no issue donning the bee suit on a 90 plus degree day to eliminate a wasp nest.
Joe Kay
Joe Kay
Excellent and quick service. I called them for a large yellowjacket nest near my garage door, they showed up about an hour after my call and took care of it. I highly recommend 603 Pest Control and would use them again.
Eric Pavao
Eric Pavao
Wouldn't use anyone else. They fixed our carpenter bee issue back in May, and we had got them over just today for another minor issue. Dan, the technician who came was really friendly, answered all my questions, and further adds to the positive experiences I've had with 603 Pest.Good companies should be recognized for being good; will always recommend them.
Evan M.
Evan M.
They are awesome! They always come out on time. They are very pleasant people to work with their technicians are always clean and polite. I would recommend them to anyone needing pest control.
Michael Shappell
Michael Shappell
Reliable, professional
Carl winer
Carl winer
I called the company in the am and they were at the house that same day to remove a large wasp nest from my garden. Excellent service and professional. Thank you for not having to get stung again! Highly recommend.
David Syrek
David Syrek
Sam was amazing! He was prompt, personable and very knowledgable about our issue. Before he performed the wasp and bee extermination he explained every step he was going to take and the reason why. When he was finished he explained what steps we could take in the future, including the locations and timeframes for both bees and wasps nesting habits, to mitigate the problem. You were the only company that was able to respond the same day I called and having your technician there the same day made all the difference in the world for us. I highly recommend this company and will utilize your services in the future. Sam is absolutely a credit to your company! We thank you and Sam for your prompt and professional response!
Karen Guilbeault
Karen Guilbeault
I called in the morning, they were there about an hour later, removed a large yellow jacket nest, sprayed the perimeter of our house and left. Tech was friendly and professional. From my phone call to completion was less than 3 hours! I highly reccomend.
Eric Parker
Eric Parker
The exterminator, Sam, was very helpful and friendly, arrived early which was wonderful and I am very happy with the service.
Marie Eldib
Marie Eldib
Sam was wonderful! Very professional and thorough!
Kate A
Kate A
Always professional, friendly, and on time. Never have any issues with ants or wasps ever since I started hiring 603 Pest. Great company at a great price.Dan was my specialist and I love having him. I always know things will get done right!
Rachel Waszczuk
Rachel Waszczuk
Dan was very polite, helpful and thorough.
Stephanie
Stephanie
Chandler was excellent. He sprayed my entire yard, sides of house, woodsy area and playground area for mosquitoes and ticks. This will now become a monthly service!!
jpesce103
jpesce103
Completely satisfied with Sam's work. He was courteous and answered any question I threw at him. Did not rush and pointed out things I was not aware of. Sam is a great representative for your company.
Eileen Cuff
Eileen Cuff
Absolutely top notch experience working with Sam who was prompt, courteous, knowledgeable, and professional. 603 Pest continues to effectively address the problems that crop up with ants in a newly constructed home.
Patrick
Patrick
Dan the tech was on time, explained all the work he was going to performed and pointed out cautionary steps after service. Professional and respectful of home cleanliness. Wore face mask and shoe covers. Very pleased with his service.
Harish Panchal
Harish Panchal
Excellent experience. Office staff (Jen) responded to our email inquiry immediately, answered all of our questions and explained everything in detail. Dan (our service technician), is so knowledgeable and professional. We are extremely pleased with the service. Very happy we chose 603 Pests.
Mary P
Mary P
Sam is always so considerate and timely! He made sure we didn’t have any pets that needed to go out before treatment since they wouldn’t be able to for 2 hours while it dries! Would recommend him to anyone! We haven’t had a mouse since his first visit!
Amie Zinn
Amie Zinn
Jeff and Dan are very professional. They showed up on time, reviewed the process and what was going to take place. They answered all my concerns. Got right to it and finished in a timely manner. The process was very clean and neat and I felt I made the right choice. Highly recommend 603 Pest Control.
Paul Scafidi
Paul Scafidi
Dan always is real thorough, professional, does a great job. He’s the best!
Michael Zoltko
Michael Zoltko
My technician was Chris who was very professional and personable. Explained what he thought was going on and told me everything he did for our house. Highly recommend 603 Pest.
Michael Kelley
Michael Kelley
I was worried about having bed bugs which is why I wanted an inspection. I've apparently had an unexplained allergic reaction to something. Chris was professional, thorough and pleasant. He reassured me that there was no infestation. The peace of mind Chris provided was worth the time and money. Thank you.
Gail Herman
Gail Herman
Chris is always informative, personable and professional!
Greg Harisiades
Greg Harisiades
We having been using 603 Pest for over a year now. Decided to do the quarterly maintenance plan. They automatically schedule the appointment every 3 months but changing it is no big deal if needed. We also did the monthly mosquitoe/tick spraying last summer. Every single person that has come for the services has been super nice, they explain what they are doing, and they make sure to ask if we have any additional questions or concerns. Super happy with the effectiveness of services and the excellent customer service.
Shannon Weigler
Shannon Weigler
Dan was great. We did a walk through of the area affected and came up with a game plan. Very professional company from inquiry to service! Thanks 603.
Normand Martel
Normand Martel
Absolutely phenomenal service. From the office to the technician, my wife and I were very impressed. We had a field mouse problem in our basement that I couldn't quite get to the bottom of, and I'm so glad I finally called 603 Pest and handed it off to them. After their first visit I noticed a complete stop in activity (after catching one leftover mouse that was already likely in our home). I set a trap again in our highest-traffic space and never caught another. Problem solved.
Adam Zobel
Adam Zobel
Dan did a great job of checking for entrance spots for rodents (mice).Good suggestion to get a door sweep for the door from garage entering into basement. thanks for our expertise Dan!!
Brian R Kinkade
Brian R Kinkade
Dan explained everything he planned to do. He showed us points of entry both outside the house and throughout the basement. Very informative.
Gail MacGuire
Gail MacGuire
From my conversation with Jennifer to schedule service, which they were able to do on the same day as my call, to Sam our technician we are super pleased with 603 Pest Control Services! Really A+ all around!
beth deroy
beth deroy
Very pleased with this service. Dan was extremely professional and knowledgeableHe solved the problem quickly. Will use 603 again if I have another problem.
David Colby
David Colby
Very detailed and thorough, quite professional. Took the time to explain things to me which I appreciated.
Tools To Go LLC
Tools To Go LLC
603 Pest Control has been treating my house for awhile now and each time they come out they are always so knowledgeable and pleasant to work with. I have trust in them with my children and pets while treatment is being done. They have gone above and beyond with their services and always strive to ensure that my home is taken care of.
Karly Lambert
Karly Lambert

    Call Today: 603-210-2773

    Or Request More Info.

















    Commercial Pest Control

    603 Pest Control Services has a long reputation of treating people and business owners right. That means prompt service, effective solutions and accountability.

    We realize every job is a potential referral for our next prospect. We service a wide variety of commercial properties, including lodging, healthcare, restaurants, tenant buildings, schools, warehouses, office buildings, manufacturing facilities and more.

    If you’re looking for a NH commercial pest control company to take care of your property and treat you and your people right, contact us or request a quote. We’ll be more than happy to deliver our Pest-Free Guarantee.

    “As a landlord with over 70 units, pest problems are inevitable. 603 Pest catches small problems before they turn into infestations and are very knowledgeable about the best course of action to take for the specific problem. They are friendly with all of our tenants, prompt to schedule and take care of a problem, and diligent in eradicating the problem. I would recommend 603 Pest to any landlord who wants to keep pests out of their buildings.”

    Granite Property Management
    Client for 5+ years