I have used Derry Septic for about 30 years. They are vey pleasant and always answered any questions we might have. I highly recommend them. read more

Great to work with, very fair and professional to work with! Highly recommended ! Very dependable read more

Surprised that Derry Septic charges extra to spray off the septic filter. Not exactly "full service."

Imagine, a septic service that actually answers the phone when you call for service. Derry Septic answered the phone the first time I called and I was able to make an appointment. Service was excellent and the price was reasonable. read more

We're selling our home. Our buyer had a septic inspection by another company. The report was 1 page. Needless to say the report left lots of questions for us. We contacted Derry Septic. By the end of the day, the owner called us from his daughter's softball game. Derry Septic asked to see the report and immediately explained what "might" be happening. As we were out of town, we told Derry Septic we'd reach out to him when we were back in town for Derry Septic to come out and take a look. Once we returned to town, we texted Derry Septic and they came out that Saturday to take a look. Again, Derry Septic explained EVERYTHING to us. Treated us and our many questions with lots of respect. Quoted us a fair price. When our job turned out to have rocks which would have caused a price increase, Derry Septic honored their original pricing. Additionally, Derry Septic wanted to do the job right because they have pride in their work. Their 5 stars are well earned. Give them a chance to quote your job!a read more

A big THANKS to Dick and Mike at Derry Septic!!! My toilets were overflowing and spilling waste into my house. They rushed over after hours, pumped my tank and charged me a regular pumping fee! No emergency fees or charges!!! They were so helpful and I can't thank them enough!!! read more

Top notch service very accommodating and customer centric. Dick the owner is very knowledgeable and very supportive. We have for the passed 13 years utilized their service and found them to be very responsive and their dispatch very proactive. Each year they mail an invoice to us out of state without delay based on building relationships with their customer. read more

Fantastic, thorough and honest! Dick came out but couldn't do the inspection because it desperately needed to be pumped. He came back later that day, explained the necessary repair, the possible outcomes as the repair was being done and gave it a clean bill of health, otherwise. If the seller fixes the issues and we go through with the closing, Derry Septic will have my business for any maintenance/ repairs on my system. I'd recommend them to anybody needing an inspection or service. read more

Called with an emergency, they sent someone out in a couple of hours. The tech was friendly, had no problem locating my tank, and performed an inspection of the tank after pumping it out. This is after I called a competitor who insisted I dig up the tank lid myself before they would pump it. The best part, the owner stopped by 20 minutes later to check the work and offer further assistance, I needed. A great company and a credit to their profession. read more

Got my septic tank pumped by Derry Septic for the first time a few weeks ago. They were able to squeeze me in for a quick appointment despite being booked way out. The woman who answered the phone was great and the man who pumped the tank was outstanding. Very professional and took the time to explain the system to me & give me some things to keep an eye on. They were recommended by a friend and I'll definitely use them again. read more

Great service! Went out of their way to double check our septic was working properly. Would recommend these polite and trustworthy guys to anyone. read more

Very hard working and super informative. Inspection on my system was top notch and thorough. VERY pleased.

Zero or negative rating is not an option so they get a 1...Dick Ball (owner) cost me $44,000 to replace my septic system that he signed off on during our home inspection. A solid septic inspection was our only real "must have" and we bought our house with significant weight on the inspection report. Of course, I know a lot more now after this ordeal than I did then...He did nothing more than open the lid to the tank and stick the point of a spade in the lawn. We provided him with all the lot plans, original septic designs and maps and original building permits that we got from the town. He did not even put together that the leach field was 40+ years old and had twelve 60+ft trees within 10 feet of the field. He did not tell us that the fact that the seller had the tank pumped right before the inspection meant that they were likely hiding something. He did not notice the evidence of raw sewerage bubbling up from the junction box under the lawn (huge patch of dark green lawn fuller, taller, and thicker than the rest of the lawn) There was no check valve on the system either which ultimately led to a pump burnout due to the junction overflow rolling back into the tank and recycling the pump. He signed off on a "septic alarm" that was just a nightlight plugged into the same, non-dedicated outlet that the pump was powered from (pump needs its own circuit with an audible alarm by code). 1.5 months after we bought the house we found the problems when sewerage started bubbling up through the lawn over the junction box. Our neighbors told us there has been septic smell coming from the yard for at least 10 years. He came back out multiple times and "wasn't sure what was wrong", even after digging up the junction box and inspecting it and seeing standing water and visible roots in the box. Then we made an appointment to have him come jet out the lines (on his recommendation) for $1600 - except he didn't show up, call, or return our calls. When we finally reached him 2 days later, he told us "in this business, the loudest person is going to get our attention. I had someone call up today and tell us 'if you aren't here in an hour we will call someone else' so we went there, you don't complain enough." We ended up needing an entire new system including taking down 66 trees to get equipment into the yard. Every engineer (3) and installer (5) that looked at the system told us that a 40+ year field should fail at face value just based on age, that the inspection was not done properly, tall trees on the edge of the field will always result in root intrusion after 40 year and none of the alarms or electrical were up to code despite Dick signing off on it...and that DICK OBVIOUSLY HAS NO IDEA HOW TO DO ANYTHING EXCEPT PUMP POOP OUT OF A TANK. Every baffle in the tank was broken despite the inspection saying they were intact (even though they are not visible with the lid open). The junction box/lines were not sealed and had a piece of scrap wood blocking an unused hole. The root intrusion was the worst case that my designer/installer (Micah at Septic Designs of NH), my pumper (Dave's Septic), and the person that we actually had try to jet out the lines prior to replacing the whole system HAD EVER SEEN. I wish I could attach a picture of it... The entire system was so clogged with roots that no light was visible from one one of the pipe to the other, unable to get either a camera or a jet nozzle more than 3 feet into the leach lines. The roots in the system extended over 40 feet. They all also told us that Dick "wasn't sure what was wrong" because he knew he knew he messed up, was legally liable, and it was such a major error that admitting it would be admitting utter incompetence - instead he disappeared and left us in the lurch. I would have sued him except we are now $44,000 in the hole so can't afford a lawyer. AS WE GET BACK ON OUR FEET, IF I CAN, I WILL - BE SURE OF THAT. I wouldn't let Derry Septic pick up my dogs poop. If you need a system installed - Call Micah at Septic Designs of NH and if you need a pump out call Dave's Septic. Both of these companies were excellent, treated us well, were timely and knowledgeable, and followed through until the end. I think they really all saw how bad Dick screwed us and did what they could to help us out. Dave's Septic really came through on a moments notice and tried everything they could, in conjunction with our other contractors, to try to salvage the system before having to replace it. In addition to the actual septic install, which was done well, Micah really helped us out by pulling stumps for a very reasonable price after the trees were down, redoing our drainage swale, and squaring, regrading, loaming, and hydro seeding our yard. If you are willing to chance having to spend $44,000 within 2 months of laying out everything you have to make the single biggest purchase of your life, Derry Septic is probably for you! read more

Very pleased with their service. We have our system pumped every year and had been w/another company for over 20 but it was getting more difficult to deal with their scheduling, prices rising every year, etc. So decided it was time to find a new company and we're glad we did! If you are looking for a good company to service your system, I'd highly recommend Derry Septic Service. Pleasure to deal with from the first phone call to completion of service. Thank you. read more

I am a first time homebuyer, we moved to Londonderry from Boston and we know nothing about septic. The alarm went off so we called Derry septic. Lynn, who answered the phone was very nice and talked me through the whole process. Within the hour Matt and his coworker were at our house digging up the septic system in the middle of January!! They talked us through the whole process, he was very knowledgeable about septic, and very professional and fixed out frozen pipe !! They are truly amazing. Thank you derry septic !!! read more

I had an emergency at my home and called Derry Septic and I am glad I did. They came that day and got me up and running the same day. They are very knowledgeable and fair. I would highly recommend them!!! read more

I used Derry Septic for the first time today (at my home in Pelham) and now I will never ever use anyone else. First, I called over the weekend with a problem and Matt called me back with advice. Then they contacted me on Monday and they were able to setup an appointment the same day. They cleaned out the septic, did an inspection, and they also did a repair. I just bought this house 4 months ago and had an independent inspection and they missed a lot of things. I should have used Derry Septic as my inspector. I didn't realize they do that too. Matt was very knowledgeable but also very comforting. He takes a lot of pride in his work and it shows. It is a nice local family-owned business too. read more

It's extremely rare to come across the sincere honesty, time, and assistance that the owner of this company was able to give us regarding our septic system. We are selling our house, and another septic company inspected our system without providing sufficient detail on our system to us and the potential buyers, leaving us very confused. When we reached out to this company for a second opinion, the owner was more than understanding and set aside time to just be kind enough to explain the situation in it's entirety in a way that allowed us to fully understand the situation. The honesty, straightforwardness, and knowledge that was evident in the conversation amazed us. I never write reviews, but we couldn't help but review this place after our great experience with them. Highly recommend them to anyone! Big thank you to the owner and his wife who helped us out when they didn't have to-- a rare, but very appreciated, way to run a business this day and age! read more

I have used a few different companies over the years, I think price wise for septic maintenance (pumping etc...)all of these companies are about the same, but these guys have the edge with service. I used them to inspect the septic in a new home we bought, I found them to be professional, knowledgeable and friendly. I have been using them for my bi-annual service since then and continue to get the same level of service. The kid helps me dig the hole out (really he dug it out for me), and even filled it in when he left, again great service I would recommend them. read more