Risers & Covers

Great customer service, knowledgeable and honest. Thank you.
The best precast products around
Always willing to work with you. Good products at a fair price.
Delivery driver for the septic tank was awesome!!
Good business. Great service. Very prompt on delivery and a well-made product. Thanks
Great service fast delivery
Great family run and operated business. Helpful with questions and the delivery, product and service is the best in the state.
Great service!
They consistently deliver quality products on time. I use them every time I install a septic system, Great Job!
Very nice people.
Helpful , locally owned , friendly. I had a great experience with them.
I was looking for a new Presby septic system and I found Andrew J Foss. This company is great, awesome customer service, honest people, and really helpful. Thank you Andrew.
I have been a customer of AJ Foss for 18 years, they go out of there way to make my jobs successful. They are always prompt and courteous, I will continue to use them in the future
Andrew J Foss has everything I need as an excavation contractor. Their service is prompt and their prices are very competitive.
I called them to buy a septic tank and distribution box and they were very helpful and reasonably priced. I would buy from them again!!!!!!
I have had the opportunity to cross paths with AJ Foss many times over the past 10 years, and I have been consistently impressed with the quality of this organization. The number of contractors that trust AJ Foss for their precast concrete needs tells the story. Contractors don't want to insecurity, and the trust they put in AJ Foss speaks volumns. A quality family-run operation that has served southern NH for decades. If you are a contractor and you are NOT using AJ Foss, you owe it to yourself to check them out.
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Photo of concrete tank risers.

Area plumbers and septic plumbing design professionals know that A.J. Foss carries concrete and plastic riser and cover options in a wide variety of sizes and styles. Whatever the job of home or commercial waste water / septic system access, we have the riser you need.

Our team provides information, answers customers’ questions, and offers full- service support for every type of riser that we manufacture (concrete) or sell as an authorized dealer (plastic).

A property or home owner can benefit from the tank-access that a septic tank riser provides.  Septic tank riser pipes consist of either precast concrete or plastic. People appreciate how a riser creates an easy-access ground level portal to a septic tank.  Risers support the service of septic tank inspection and pump-out.

Concrete Riser Sizes

Photo of Polylok plastic riser.Plastic Riser Sizes

All risers are stackable to help achieve each the required height for each project.

Concrete HD (Heavy Duty/Vehicle-Bearing) Riser Sizes

Contact us to discuss your projects throughout New Hampshire, Maine and Northern Massachusetts that require accessories for precast concrete products, and discover the A.J. Foss difference for yourself.

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