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TRUSTED BY HADDAM, CT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon22
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Haddam

Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Haddam, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Great results from waterproofing. Turned my spring flooding anxiety to calm. As humidity rose in summer, I put in a small dehumidifier. Made basement noisy as it struggled to dry and produced a lot of heat. As temperatures rose to about 83 down there and the humidity rose to over 68%, I had same people put in a whole basement commercial-grade dehumidifier. The small unit dropped the humidity to around 50% in less than an hour. Incredible performance and have me peace of mind and peace and quiet downstairs. Temperature dropped gas as well. Weel worth the price to save my most expensive investment."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

130 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for American Dry Basement Systems, LLC
American Dry Basement Systems, LLC
4.9(
118
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Haddam, CT and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"I had a great experience with American Dry Basements. From start to finish, their team was professional, knowledgeable, and easy to work with. They took the time to explain everything clearly and made sure the job was done right the first time. What really stood out to me was their fair and affordable pricing—no surprises, just honest work at a reasonable cost. It’s not always easy to find a company that combines quality service with good value, but they definitely delivered on both. If you’re looking for reliable basement waterproofing with a team you can trust, I highly recommend giving them a call."
Drainage Trench
Jackhammer
Mixing SuperCrete
Compress Wash Stones
Spreading SuperCrete

+7

Response time11 hrs
10 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Eastern Waterproofing Co., Inc.
Eastern Waterproofing Co., Inc.
4.6(
40
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Haddam, CT and surrounding areas

Approved

In business since 1976

Free estimates

Warranties offered

"I would highly recommend Eastern Waterproofing..They qouted a fair price and they came when they said they would and were very efficient in their work. Big thanks to Art,George, and the rest of the crew.. Nice quality job and I would hire them again with no hesitation...Steve Shookus"
broken walk
repai
repair
addition
sidewalk and dumpster pad

+67

Response time2 days
18 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
122
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Haddam, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"A soft wall due to improperly installed gutter by some other entity or homeowner caused water to constantly leak into the wall from the exterior roofline. This soft wall grow moldy and become riddled with pests/bugs. The contractor identified the potential issues, agreed to explore and open the walls and discuss the conditions, made sound recommendations for repair and did exactly what was noted in the repair (replaced a load bearing exterior wall, fixed the sill plate, completed the roof, shingles etc. and closed up the walls on the inside with insulation and sheet rock.). The work was timely, well done, the workers were clean as they did the job and kept the rest of the property clean. The manager of the job David Apel was and is an excellent communicator with phone/email/text and photos of processes and progress. I am going to use this company in my own investment endeavors on other properties and projects given the level of finished work, the timing and especially the level of detailed communication."
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1826

Response time1 day
Response rate92%
Recommended by85%of homeowners
Avatar for Groundworks
Groundworks
4.9(
13
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Haddam, CT and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"Aaron Lenker add Corbin Gillichbauer of Groundworks leveled concrete walks around my corner lot in Montoursville Pa. They arrived around noon time and were finished about 5 1/2 hours later. They did their work very professionally. They did an excellent job. I would rate their work 5 of 5 stars."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

557 neighbors recently requested a quote
Avatar for KNL CONSTRUCTOR LLC
KNL CONSTRUCTOR LLC
5.0(
11
)
Basement Drainage Channels - Install

Serving Haddam, CT and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

*****Call Today for an Estimate @ 475-279-4864***** With over 10 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

Pavers
Pavers
Concrete Border
Concrete Border
Bluestone

+2

22 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for AA Outdoor Services, LLC
AA Outdoor Services, LLC
3.9(
33
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Haddam, CT and surrounding areas

Approved

In business since 1990

Free estimates

Small jobs welcome

"Vincent did an absolutely beautiful job on my cement and asphalt driveway. Their craftsmanship was top-notch. They finished the job quickly, and left the work area clean when they were not there. They stayed in touch throughout the process, and they take tremendous pride in their work. I have worked with hundreds of contractors over the years and these folks are among the very best and most reliable. Cannot say enough good things, also the prices were competitive, and they delivered a better quality of work than I would expect for a similar price."
Driveway in New Haven (West Haven)
Rear entrance and parking area (West Haven)
Rear entrance and parking area (West Haven)
Step repair (West Haven)
Step repair (West Haven)

+61

Response time9 hrs
Recommended by100%of homeowners
Avatar for Sound Side Construction, LLC
Sound Side Construction, LLC
4.8(
6
)
Basement Drainage Channels - Install

Serving Haddam, CT and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

Sound Side Construction, LLC, is your one stop shop for all your marine construction and excavation needs. We pride ourselves in going above and beyond for our customers. We take great pride in our work with focus on detail. No project is to big or to small. Give us a call today for your next home improvement project. Due to us being a small business, you will receive the personalized customer service you want along with excellent service and updates as we work with you to get your job done. We will provide high quality work along with great communication to ensure that you are getting exactly what you wish to provide the best possible experience!\n\n

Gallery
Gallery
Gallery
Recommended by66%of homeowners
Avatar for Dry-X Waterproofing
Dry-X Waterproofing
4.6(
60
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Haddam, CT and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"The work went quickly and professionally.  The crew was careful to
protect our environment and to keep us notified of what they were doing
and when to expect noise, etc.  This was especially important as we have
 three older dogs and we were able to schedule their water theraphy for
the noisiest day. There was an additional problem discovered with
plumbing into the basement.  A pipe from the street to the water meter
had to be replaced by another contractor.  The Basement Guys were unable
to waterproof that spot until after the repair was completed.  They
returned promptly and completed the work, also double checking for any
chips or gaps that had arisen in the foam insulation and fixing them 
and touching up the waterproofing epoxy where the termite company had
drilled holes in the basement wall.  We were extremely pleased with
their service. They are phenomenal!We highly recommend Dry-X Waterprofing.
"
Recommended by98%of homeowners
...
Showing 1-10 of 81
Basement Waterproofing questions, answered by experts

Yes, engineers assess soil load-bearing capacity and provide construction guidelines.

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

Waterproofing or encapsulating protects against moisture, preventing mold growth and structural damage. These services also enhance energy efficiency and improve air quality by keeping humidity levels in check.

Whether your homeowners insurance covers slab leak repairs depends on your specific policy and the cause of the leak. Many policies cover slab leaks resulting from a covered peril, such as a natural disaster, a falling tree, or pipes freezing and bursting within the slab. However, damage caused by invading tree roots, corrosion, or leaks from appliances may not be covered by a standard policy. It's a good idea to also check your home warranty plan for potential coverage if an appliance is the source. Contact your insurance provider for a full explanation of what your policy covers.

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.

The Haddam, CT homeowners’ guide to basement waterproofing services

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