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Avatar for Northern Basement Systems
Northern Basement Systems
4.6(
21
)

Serving Ossipee, NH and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Paul Swann evaluated our foundation problem and referred us to an engineer who provided a detailed repair plan. Unfortunately, the nature and scope of the proposed repair plan was outside the parameters of what Northern Basement System's themselves could provide. We appreciated their honesty and have been looking for a contractor to take on the project."
Additional Photos
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+25

Response time1 day
3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Groundworks
Groundworks
4.6(
26
)

Serving Ossipee, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"Guys came out to 2 of our properties and put systems in each one. They were in and out in a week for both and did a great job. They solved our water issues and we are so thankful for the great job they did. We would highly recommend them."
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
205 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for NH Projects LLC
NH Projects LLC
5.0(
20
)

Serving Ossipee, NH and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"Lenny and Nick exceeded all expectations - building a theatre in my basement. The attention to detail, knowledge and professionalism are all second-to-none with these guys. I would highly recommend NH projects to anyone looking for high quality work at a fair price."
Our Work
Our Work
Our Work
Our Work
Our Work

+8

Response time5 hrs
Response rate87%
3 neighbors recently requested a quote
Avatar for Basement Solutions LLC
Basement Solutions LLC
New to Angi

Serving Ossipee, NH and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

We pride our company on reliability, integrity and quality work. We are experts in our trade. We look forward to earning your business! We specialize in concrete crack repair and injections, basement waterproofing, sump pump installations, basement and egress window installations, bulkhead door replacements, crawlspace repair, moisture control, foundation repair and so much more.\nCall us today for a free estimate.

Egress
Egress
Egress
Sump Pump
Perimeter System

+4

Avatar for SW WOOD LLC
SW WOOD LLC
5.0(
1
)

Serving Ossipee, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I was very pleased with the work he did, he has a nice way of explaining things , I sure I will hire him again for other projects when needed he is a very pleasant person to deal with. Tank you Scott for being such a nice guy ."
25 neighbors recently requested a quote
Avatar for Green Mountain Basement Solutions LLC
Green Mountain Basement Solutions LLC
4.0(
30
)

Serving Ossipee, NH and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"We have had an intermittant water problem in our basement primarily when it rains heavily in the Winter.
I was very happy with the quick response from Mike Sears when we initially called to ask about repairing a water leak problem in our basement.  Mike explained how his proposed solution would work to alleviate the water problem. 
Mike left us with a detailed estimate and informational materials about the proposed repair.  He also explained what wasn't included in the job such as tearing out the current sheetrock, insulation and framing from the wall.  I did  this part of the work and the reconstruction after the drain had been installed.
We spoke to Mike a few days later, agreed to the price and set a date for the repair.
On the scheduled date, two of Mikes employees arrived on time and began to prep for the repair.  They did a good job of hanging plastic sheeting around their work area so that the dirt and dust would not get into the rest of the basement.
We had discovered a crack in the basement wall which wasn't visible when the original estimate was given.  Scott Lee gave  us a written estimate to repair it with carbon-fiber cloth and sealant.  While this was an unexpected expense, there was no reason to put in a drain and leave a crack in the wall.
Taking out a basement floor with a jackhammer and installing a drain is a hard, dirty job.  Scott and his co-worker completed this job in about 6 1/2 hours including the additional work for the wall crack.
They did a good job of cleaning up the old concrete and all working materials 
Scott explained how the pump would work when the water table under the house rose.  
My only issue with quality was the uneven concrete finish work on the basement floor above the drain.  Because this was leveled by hand, there is a somewhat noticeable depression in this area of the floor.
Overall, I am happy with the work and looking forward to a dry basement when the rains come this spring.


"
Recommended by75%of homeowners
Avatar for Granite State Piping
Granite State Piping
4.9(
87
)

Serving Ossipee, NH and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Eric did what he said he would do on the schedule he said he would. He is very professional. They did a good cleanup after their work. Both the Condo Association manager and my contractor felt he did a good job. In fact, a neighbor has already hired Granite Piping to do the same fuel tank replacement in their unit based upon the manager's recommendation. I recommend Granite Piping highly. Don"
Boiler flues
Water Tratment
GSP1
GSP2
GSP3

+2

Response time1 day
Recommended by97%of homeowners
Avatar for Jackson and Company Foundation Repair
Jackson and Company Foundation Repair
4.5(
20
)

Serving Ossipee, NH and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"I contacted Jackson and Company to obtain
a quote; Mr. Jackson contacted me within a few hours! Rick was polite and very
professional during our conversations. He came out to see the cracks to ensure
that my quote was accurate, especially since I had explained that someone had
attempted to "repair" the cracks previously. Rick arrived promptly at
my home and reviewed my situation. He answered all of my questions and
addressed all of my concerns. He also explained that his work would be covered
under a transferrable warrantee! I had several other quotes however no other company
offered any type of warrantee.
Rob arrived on time to do the job. Rob
was so nice and professional; I was greeted with a smile and a handshake. I
really wanted to see the process and he took the time to explain each step to
me. He worked tirelessly to clean up the mess of the failed ?repair? I could
not believe how much better it looked! He then proceeded to perform the repair allowing
me to watch and take pictures, it?s quite the process. He left both areas that he
worked on immaculate!
I have such peace of mind now knowing
that I will no longer have to worry about there being a huge puddle in my
garage or basement or water spouting out of the cracks! I am so glad that I
chose Jackson and Company to perform this work for me and I would recommend them
to anyone!


"
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+4

Recommended by82%of homeowners
Showing 1-10 of 42
Basement Waterproofing questions, answered by experts

A crawl space can be as little as 42 inches below the grade of your house, but this is not always recommended in flood-prone areas. At a minimum, there must be at least 16 inches of clearance between the ground and the floor joists to access the space in an emergency.

Yes, professional installers use weather-resistant materials to protect the dish and cabling from environmental damage.

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.

The Ossipee, NH homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.