Jamison Basement Waterproofing service trucks parked outside residential property

Professional basement waterproofing and foundation repair

Professional Basement Waterproofing and Crawl Space Repair in Colwyn, PA

Name: Office Address
Address: 1429 Ulmer Avenue, Oreland, PA, 19075, US
Telephone: 484-276-2272
Price range: $$

Colwyn, PA is recognized for its historic neighborhoods, diverse community, and convenient location near Philadelphia. Many homes throughout the borough have been standing for decades, and while they offer plenty of character, older properties are often more vulnerable to basement moisture problems and foundation deterioration caused by aging materials, drainage issues, and changing ground conditions over time.

At Jamison Basement Waterproofing, we specialize in basement waterproofing and structural repair services tailored to the unique needs of Colwyn homeowners. Water entering through foundation walls, damp basement air, pooling water, and settling foundations are all signs that moisture may be affecting the home below ground level. Our team carefully evaluates each property to locate the source of the issue and recommend long-term waterproofing solutions designed to keep the basement dry and protected.

Throughout the year, homes in Colwyn face humid summers, winter freeze-thaw cycles, and periods of heavy rain and snowfall. These weather conditions can place significant stress on the soil surrounding the foundation, causing expansion and contraction that may eventually impact basement walls and floors. Left untreated, moisture intrusion can contribute to mold growth, musty odors, cracked foundations, weakened structural components, and poor indoor air quality.

Our waterproofing specialists provide a full range of basement and crawl space services, including interior drainage systems, sump pump installation, crawl space encapsulation, exterior waterproofing, crack repair, basement humidity control, and structural stabilization solutions. Every home is different, which is why we customize our repair approach to match the specific needs and condition of the property.

For more than 35 years, Jamison Basement Waterproofing has helped homeowners throughout the area protect their homes from water damage and foundation issues. As a family-owned and operated business, we take pride in delivering reliable workmanship, honest recommendations, and responsive customer service backed by decades of hands-on experience.

Jamison Basement Waterproofing's Services in Colwyn, PA

Our services are designed to keep your home healthy and safe. Here's a list of some of our popular services in Colwyn, PA.

Basement Waterproofing

Jamison Basement is the leading basement waterproofing service provider in Southeastern Pennsylvania. Our systems are designed to be flexible enough to handle all types and sizes of homes. With the kind of weather in Colwyn and the age of the existing homes, you'll need a reliable basement waterproofing system to keep your basement dry. We use advanced basement waterproofing technology produced by GrateProducts, the leading basement health technology provider in the US.

Crawlspaces Repair Services

A big portion of the air you breathe comes from the basement and crawlspaces. You want to take as much care of your crawlspaces as much as you do for your basements. Jamison Basement provides complete solutions for keeping your crawlspaces dry including dehumidifier installation and crawlspace encapsulation.

Sump Pump Installation

Water will naturally flow to your basement, the lowest part of the house. To remove accumulated water, you will have to use sump pumps. We only install the most highly reputable sump pump brands. Aside from that, we make sure that you have reliable battery back-up so your sump pump will work even when there are power outages. This is particularly useful during storms when basement flooding is more likely.

Radon Gas Testing and Mitigation

Radon is a naturally occurring but dangerous gas that can enter your home through cracks in your foundation walls. It's an invisible and odorless gas, so you won't know if there's radon without the use of specialized tools. Jamison Basement provides radon testing and mitigation services in Colwyn.

Contact Jamison Basement Waterproofing Today

For more information about any of our services, please call 484-276-2272 or send us a message via our online contact form found in our Contact Us page. We would be happy to provide with a quote and answer all your questions about our services.

Our customers love us!

See All 620 Reviews

Customer Reviews from Colwyn and Surrounding Areas ( 5

from 12 reviews )

Charla H.

April 18, 2018 | Sharon Hill , PA

I contacted 3 different Waterproofing company’s and Jamison Basement Waterproofing was the most professional. Steve and his crew were great form start to finish.

Connie F.

April 10, 2014 | Sharon Hill , PA

I found Jamison in the yellow pages . Their quote and price was the best . The installation crew experience really showed they did a great job !

Anna O.

September 17, 2014 | Sharon Hill , PA

Jamison had the best solution to Waterproofed my Crawlspace, the installation crew was Awesome, they explained everything step by step . I was very satisfied with the work they did ..

Tameeka D.

March 01, 2019 | Sharon Hill , PA

I had a french drain and a window well drain installed in my rental property. Jamison did did an excellent job! The work was completed quickly and efficiently, it was ...

Joe M.

December 09, 2014 | Aldan, PA

I chose Jamison Basement Waterproofing because of their Reputation & Price . The installation crew was professional and courteous. Best money spent !

Stephanie B.

September 11, 2012 | Philadelphia , PA

Installation crew was very knowledgeable. I was referred to Jamison from a family member. I was very satisfied with the work that was done .

Jen I.

April 10, 2013 | Aldan , PA

Sean M.

September 19, 2017 | Philadelphia , PA

I am preparing to finish the small basement in my 1926 twin home by converting it to a guest space with a powder room. In the short time we’ve lived ...

V S.

June 22, 2012 | Lansdowne , PA

I choose Jamison because we are good friends with Frank Jamison and I must say all the employees he sent out was very hard working an likable.

Darnell R.

May 29, 2013 | Drexel Hill , PA

I found Jamison in the House & Home Magazine . The installation crew was very professional and efficient. Dave Rantanen the project Manager was very knowledgeable and took the time to fully ...

Ed K.

May 14, 2014 | Norwood , PA

I used Jamison for my Sump pump replacement. They were fast with quality service !

Patricia S.

March 14, 2014 | Philadelphia , PA

I came across Jamison at the Philly Home Show and I was very impressed with what they had to offer . The installation crew was very professional, knowledgeable and efficient.

Happy Customers across Colwyn and Surrounding Areas

Completed Jobs from Colwyn and Surrounding Areas

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L McDaniel

September 30, 2016 | Colwyn, PA

The challenge we faced was that it was a hard floor to demo.

To address this, we installed a drainage system along with a full vapor barrier on the back wall and a sump pump replacement.

Tameeka D

February 13, 2019 | Sharon Hill, PA

Fran M

February 12, 2025 | Sharon Hill, PA

First African Baptist Church

November 02, 2021 | Sharon hill, PA

Thomas D

December 01, 2016 | Aldan, PA

After our project manager went out and met with Mr. Daniels he knew that Mr. Daniels just wanted a simple pump replacement so that's what we did . We replaced the very old outdated pump with a new 1/3hp cast iron pump with 3yr warranty. Now Mr Daniels can sleep at night with peace in mind now that he has a reliable pump .

Germaine W

November 29, 2025 | Philadelphia , PA

Project Manager Tim Pronesti conducted a comprehensive inspection of the client’s basement to assess ongoing moisture concerns. During his evaluation, Tim identified elevated humidity levels and signs of moisture intrusion along the walls and floor.

Based on his findings, Tim recommended a two-part solution:

Installation of a high-volume dehumidifier to continually control humidity and maintain a dry, healthy environment.
Application of a moisture-blocking coating on both the basement walls and floor to prevent water seepage, protect structural materials, and improve overall appearance.

This combined approach not only provides the homeowner with a cleaner, more attractive basement, but also delivers long term protection by reducing moisture levels and helping preserve the integrity of the foundation walls.

If you live in the Philadelphia area and have crumbling basement walls please don't hesitate to reach out to us at Jamison Basement Waterproofing ....

Francis C

March 25, 2025 | Philadelphia, PA

Stephanie O

February 06, 2020 | Philadelphia, PA

The engineer report stated that the supports could not handle the weight being placed on them by the home above, ( no footer ) which would likely cause more problems later on if not dealt with soon. Her basement was also damp . Project manager Steve C came out to design a solution based on her needs Steve knew she needed a solution that would prevent the floor above the basement from sagging any further .. Crew leader Victor install a new solid concrete footer 20x20 to support the new 4x4 wood post that will be able to hold the load of the building . Victor also install a GrateSump pump with the GrateDrain drainage system to relieve the hydrostatic pressure off the wall as well . He also coated the walls & floor with a waterproofing coating ..

Sandy R

April 01, 2026 | Philadelphia , PA

Seeking a reliable fix, the homeowner contacted Jamison for a professional assessment and repair plan. After inspecting the basement project manager Ken McKnight recommended a combination of wall stabilization and a stucco application to restore both strength and durability.

The process included:
Removing loose and deteriorated material Preparing and cleaning the wall surface Applying a reinforced bonding layer Installing a durable stucco coating to seal and strengthen the structure

The Results

The transformation was immediate and long-lasting:
The basement walls were structurally reinforced Moisture resistance significantly improved The space gained a clean, finished appearance The homeowner regained peace of mind..

Before / After Grate Sump & GrateDrain system

Betsy K

July 17, 2021 | Philadelphia, PA

Katie R

April 05, 2018 | Aldan, PA

We love Basement window replacement and we have been installing glass block windows for over 25 years. Please call or email us today.

Before and After Job Photos Colwyn

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Josh D

September 23, 2020 | Philadelphia , PA

Old Chestnut hill basement / stucco the walls / new drainage system with sump pump and entire new basement floor ..

Photo Galleries from Colwyn

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Gladwyne PA

Gladwyne, PA

Builders we have worked with

Bryn Mawr, PA

iBasement Systems & Crawl Space Systems Certificates in the Philadelphia Area

The iBasement Systems and Crawl Space Systems Certificates were created using specific sets of criteria to provide a healthy indoor living environment. Air pollutants and excessive moisture levels in the basement or crawl space can negatively impact the odors in the home as well as cause health problems with those who live there year-round - including yourself!

We offer 6 levels of iBasement Certificate, and 5 levels Crawl Space Systems Certificate, each designed to solve specific problems and protect your home, family, and property value on the long run.