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Best basement waterproofing pros near Strafford, NH

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Top-Rated Basement waterproofing pros in Strafford - Updated Nov 2026

Avatar for NH Projects LLC
NH Projects LLC
5.0(
20
)
Basement Drainage Channels - Install

Serving Strafford, 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%
1 neighbors recently requested a quote
Avatar for Erickson Foundation Solutions
Erickson Foundation Solutions
4.6(
10
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Strafford, NH and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"Mixed review I had spoken with other radon remediation companies and received quotes before meeting with Erickson Foundation Solutions. The salesman, Chris, seemed much more thorough in his approach and he gave a presentation explaining radon, its danger and the process to remove it. The quote was slightly higher than another quote, but I felt more confident. And with the added fan moisture guard, the system came with a 10-year warranty. So I agreed to the proposed plan and paid a deposit. Later I decided to not install concrete in the adjacent (but not connected) basement/crawl space. I asked Erickson to quote installation of plastic sheeting to seal that space. John, the sales manager’s quote doubled the total price. I already had found durable plastic sheeting for about $300. So how would that become $2000 extra? John explained that there would be a drainage mat under the plastic and it would be attached every few inches to the walls and then sealed with caulking. But besides sealing the area, the quote also included another extraction hole and piping to connect it to the fan. This seemed to me like over-kill for a 1200 square-foot house. But he said without the second extraction location, they would not warranty the job. So I accepted the “up-sell” and signed. Today the office called to tell me when the crew would arrive and they arrived on time and were very pleasant. However, they did not have the drainage mat. They called their supervisor and was told that it was not included in the quote and would be an additional charge. In fact it had been a verbal inclusion, not written. The crew was surprised that a second extraction hole was quoted, since the radon levels were not very high to start (3.8 and 5.4). So I feel that I accepted a possibly unnecessarily elaborate system, more elaborate than I probably really need, for twice the price. And didn’t receive the drainage mat that I was told would be part of it."
View of the cracked and bowing field stone foundation wall.
PowerBrace wall supports are installed, and the new steel reinforced concrete wall is formed around them to fully stabilize the bowing foundation wall.
The auxiliary wall is anchored to the floor below and joists above and stabilized with PowerBrace wall supports.
Additional Photos
Additional Photos

+54

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for IDEAL SOLUTIONS LLC
IDEAL SOLUTIONS LLC
4.8(
13
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Strafford, NH and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Best experience I have had with a home service provider. Job was performed well. And while there, a second unrelated problem was discovered. Chris rearranged his schedule so he could fix problem the same week. He replies quick, schedules quickly, and gets the job done at an affordable price. Will definitely hire again."
18 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.5(
464
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Strafford, NH and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"I contacted Proactive to replace my water heater because my current oil system a 5 yr old system kept flooding my basement. The tech looked at the system and spent about two hours on his phone reviewing the system. finally he figured out that my return temp was set too low and was automatically expelling the hot water on the ground outside my water tank. I was elated. So many times I called plumbers and the oil company who swapped tanks and switches , costing me several thousands of dollars. when he left he didn't want to charge me even a hundred bucks, the time he spent researching the problem. I tipped him big time. He was worth it. He saved me from unnecessarily buying a multi thousand dollar new system, and he ended the constant and expensive flooding in my basement. Yes, if necessary, I will use Proactive Comfort again!"
Generator Installation
Light Fixture Service
Oultet services
Indoor Outlet Service
HVAC Outdoor Unit

+16

Response time1 day
349 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Carideo Services
Carideo Services
4.7(
41
)
Basement Drainage Channels - Install

Serving Strafford, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Showed up and knew exactly what they were doing. Exactly what I needed for my yard. Worked diligently & finished early. I would recommend them for any dirt delivery, spreading or rock work you may need."
Waterfront Excavating
Waterfront Excavating
Propane Tank Installment
Uunderground Propane tank
TJ MAXX Sign

+7

Response time6 hrs
Response rate98%
9 neighbors recently requested a quote
Avatar for Green Home Solutions of North Central MA
Green Home Solutions of North Central MA
4.8(
13
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Strafford, NH and surrounding areas

Approved

In business since 2021

Warranties offered

Credit card accepted

"Workers very professional and clean up was great. Courteous knowing we were working from home and noise kept so low our callers didnâ t even know work was occurring in house. I must also say workers walking up and down stairs on hardwood steps, not heard! Great group and would hire again if needed, thank you!"
Attic Mold Remediation - Fitchburg, MA
Mold Contamination in Attic
Living Room- Mold remediation - Lowell MA
Living Room Mold Remediation - Lowell, MA
Attic Mold Remediation - Derry, NH

+11

Response time12 hrs
Response rate90%
43 neighbors recently requested a quote
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Basement Waterproofing FAQs, answered by experts

The best type of basement ventilation system depends on your budget, the moisture in your basement’s air, and the types of windows you have down there. You should consider all of these factors when choosing a ventilation system. However, the most effective method for basement ventilation is an energy recovery ventilator (ERV) or a whole-house ventilation system, which preheats or precools incoming air from the outside while also managing water vapor.

Yes, it is generally unhealthy and can be dangerous to live in a damp basement. The damp air can negatively affect your breathing and lungs, and the moisture promotes mold growth and pest infestations. Inhaling mold spores or waste particles from insects and rodents attracted to the moisture can be hazardous. This damp, moldy air can also circulate into your main living area. It is crucial to resolve any moisture problems and implement preventative measures before using your basement as a living space.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

It depends on what caused your basement flooding, the extent of the problem, and the risk of the flood continuing. If your flood is coming from a septic system or sewer line, breathing in the sewer gasses can be dangerous, so you should vacate. If the flood occurs from an ongoing natural disaster, relocating to a safe area might be wise. If you just have a plumbing leak or rainwater coming in, you can likely stay in the house if you don’t have electrical lines down there, but make sure you call in professionals to fix the issue immediately.

The Strafford, NH homeowners’ guide to basement waterproofing services

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