Get matched with top basement waterproofing pros in Conshohocken, PA
There are 33 highly-rated local basement waterproofing pros.
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4.5 
122 Verified Reviews for Basement Waterproofing pros in Conshohocken, PA
*The Angi rating for Basement Waterproofing companies in Conshohocken, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
*The HomeAdvisor rating for Basement Waterproofing companies in Conshohocken, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
Last update on April 26, 2025
Basement waterproofing pros in Conshohocken
We are a family run waterproofing specialist company, owned and operated, since 1976 by A.J. DiElsi. We have one crew, one truck and start and finish one job at a time. We are completely insured with general liability and workman's compensation. There is no charge for estimates and we take no deposits on any job. You pay us upon completion of the job. We do not have salesmen. A.J. is the gentleman that comes out to deliver each estimate and he is on each job. We excel in impeccable workmanship, and the jobs are always left cleaner than when we arrived. We give a lifetime guarantee on our French Drains and it is transferable to each new homeowner. Please feel free to call with any questions 610-527-9444 or 610-409-0888, Additional phones: 610-960-1589. Or feel free to email us at : ajwaterproofing@verizon.net, you can also check us out on YouTube and our website, ajwaterproofing.com.
"QUICK, FRIENDLY, and CHEAP!! First, AJ called me within 30 seconds of me texting him asking for an estimate. I sent him a photo of our water leak issue and he immediately responded. He actually explained that we could probably handle the repair ourselves if we were up for it, instead of paying him or someone else. He then walked us through every step in detail and made sure we were comfortable with the directions. So in the end, it cost us $0 in labor and only a small amount for materials, and really demonstrated AJ's integrity and generosity!"
Jarcy M on September 2023
We are a family run waterproofing specialist company, owned and operated, since 1976 by A.J. DiElsi. We have one crew, one truck and start and finish one job at a time. We are completely insured with general liability and workman's compensation. There is no charge for estimates and we take no deposits on any job. You pay us upon completion of the job. We do not have salesmen. A.J. is the gentleman that comes out to deliver each estimate and he is on each job. We excel in impeccable workmanship, and the jobs are always left cleaner than when we arrived. We give a lifetime guarantee on our French Drains and it is transferable to each new homeowner. Please feel free to call with any questions 610-527-9444 or 610-409-0888, Additional phones: 610-960-1589. Or feel free to email us at : ajwaterproofing@verizon.net, you can also check us out on YouTube and our website, ajwaterproofing.com.
"QUICK, FRIENDLY, and CHEAP!! First, AJ called me within 30 seconds of me texting him asking for an estimate. I sent him a photo of our water leak issue and he immediately responded. He actually explained that we could probably handle the repair ourselves if we were up for it, instead of paying him or someone else. He then walked us through every step in detail and made sure we were comfortable with the directions. So in the end, it cost us $0 in labor and only a small amount for materials, and really demonstrated AJ's integrity and generosity!"
Jarcy M on September 2023
Ross, Master Plumber, and has been servicing the Southeastern Pennsylvania area for a combined 60+ years. With extensive knowledge in both Residential and Commercial plumbing, we are sure to have the right solution for all of your needs. If you’re looking for a company who sets itself apart from the rest, one that truly stands behind its word, you’ll want to contact Paradigm Plumbing Solutions. Unlike most companies, you will have the Owners, onsite, working alongside of our Foreman from start to finish. This will give you peace of mind, knowing the job will be done to the highest standards. Our existing plumbing Customers will never have to pay an emergency service fee. In addition, we will always extend additional discounts when our existing customers continue to use Paradigm Plumbing Solutions for additional work. Owned and operated by Master Plumber, Ross Pressman, Paradigm Plumbing Solutions is a family-run venture that has deep roots in the community. Join our family of totally satisfied customers and let us show you what were made of.
"Don’t hesitate - make the call; we’re so glad we did! I will definitely call Paradigm Plumbing for our future projects! It was such a pleasure to work with Ross and his crew. They respond quickly and their work is top quality."
Mark B on October 2024
Ross, Master Plumber, and has been servicing the Southeastern Pennsylvania area for a combined 60+ years. With extensive knowledge in both Residential and Commercial plumbing, we are sure to have the right solution for all of your needs. If you’re looking for a company who sets itself apart from the rest, one that truly stands behind its word, you’ll want to contact Paradigm Plumbing Solutions. Unlike most companies, you will have the Owners, onsite, working alongside of our Foreman from start to finish. This will give you peace of mind, knowing the job will be done to the highest standards. Our existing plumbing Customers will never have to pay an emergency service fee. In addition, we will always extend additional discounts when our existing customers continue to use Paradigm Plumbing Solutions for additional work. Owned and operated by Master Plumber, Ross Pressman, Paradigm Plumbing Solutions is a family-run venture that has deep roots in the community. Join our family of totally satisfied customers and let us show you what were made of.
"Don’t hesitate - make the call; we’re so glad we did! I will definitely call Paradigm Plumbing for our future projects! It was such a pleasure to work with Ross and his crew. They respond quickly and their work is top quality."
Mark B on October 2024
Budget Waterproofing has more than 55 years of experience in servicing residential customers throughout Maryland. If you would like to speak with us immediately please call us at 410-609-1240. Our Maryland waterproofing services range from Basement & Crawlspace Waterpoofing, and foundation crack repair to sump pump installation and crawlspace encapsulation. If you have moisture, high humidity or mold problems in your basement, Budget Waterproofing is your solution. We have proven over the years that our waterproofing methods look good and do the job and last. Our technicians are well-trained and instructed to respect your home and make sure you are happy with the finished project. As one of the leading basement waterproofing companies in Maryland, we are confident that you will will be satisfied with our level of quality. Enjoy competitive pricing starting at *$2000.00* minimum job for our state-of-the-art waterproofing – thousands of satisfied homeowners already are!
"I recently hired Budget Waterproofing to address ongoing moisture and standing water issues in my basement, and I couldn't be more pleased with the results. Before their team stepped in, I was dealing with a musty smell, mildew buildup, and even standing water after heavy rains — it was a persistent and stressful problem. The crew arrived on time from the start, the team was professional, knowledgeable, and easy to work with. They clearly explained what needed to be done and completed the job efficiently. I especially want to recognize Chris, who went above and beyond during the cleanup process. He took extra care around my property and left everything cleaner than when they arrived, which I really appreciated. Every member of the team was courteous and respectful. Since the work was completed, my basement has been dry, fresh, and free of any moisture problems. It’s made a huge difference in the comfort and value of my home. I now have peace of mind every time it rains — and that’s priceless. I highly recommend Budget Waterproofing to anyone experiencing water issues in their home and are on a budget. Their expertise and dedication to quality work truly stand out."
Sharon B on April 2025
Budget Waterproofing has more than 55 years of experience in servicing residential customers throughout Maryland. If you would like to speak with us immediately please call us at 410-609-1240. Our Maryland waterproofing services range from Basement & Crawlspace Waterpoofing, and foundation crack repair to sump pump installation and crawlspace encapsulation. If you have moisture, high humidity or mold problems in your basement, Budget Waterproofing is your solution. We have proven over the years that our waterproofing methods look good and do the job and last. Our technicians are well-trained and instructed to respect your home and make sure you are happy with the finished project. As one of the leading basement waterproofing companies in Maryland, we are confident that you will will be satisfied with our level of quality. Enjoy competitive pricing starting at *$2000.00* minimum job for our state-of-the-art waterproofing – thousands of satisfied homeowners already are!
"I recently hired Budget Waterproofing to address ongoing moisture and standing water issues in my basement, and I couldn't be more pleased with the results. Before their team stepped in, I was dealing with a musty smell, mildew buildup, and even standing water after heavy rains — it was a persistent and stressful problem. The crew arrived on time from the start, the team was professional, knowledgeable, and easy to work with. They clearly explained what needed to be done and completed the job efficiently. I especially want to recognize Chris, who went above and beyond during the cleanup process. He took extra care around my property and left everything cleaner than when they arrived, which I really appreciated. Every member of the team was courteous and respectful. Since the work was completed, my basement has been dry, fresh, and free of any moisture problems. It’s made a huge difference in the comfort and value of my home. I now have peace of mind every time it rains — and that’s priceless. I highly recommend Budget Waterproofing to anyone experiencing water issues in their home and are on a budget. Their expertise and dedication to quality work truly stand out."
Sharon B on April 2025
Our mission at J & A Environmental Services, LLC is to continue the growth of our business by doing right by all of our clients. We truly care about your health and environment, so we take our jobs very seriously. We offer Mold Remediation, Air Quality Testing, Basement Waterproofing, Odor Removal, and Water Damage Clean-up. J&A Environmental Services, LLC is a fair honest company with excellent customer service. J&A Environmental Services, LLC built the brand by helping one family at a time to eliminate the mold in their environment. Call us 24/7 for all your Environmental needs. We have 100+ five star ratings on Angi's Leads and 34 five star ratings on Angi's Ads.
"Al and John were great - very informative and thorough, very neat. They needed to move a bunch of shelves in my basement so they can treat the walls and let them dry. They came back a few days later and put everything back. They also set up my new dehumidifier and explained how to operate it."
gene K on March 2025
Our mission at J & A Environmental Services, LLC is to continue the growth of our business by doing right by all of our clients. We truly care about your health and environment, so we take our jobs very seriously. We offer Mold Remediation, Air Quality Testing, Basement Waterproofing, Odor Removal, and Water Damage Clean-up. J&A Environmental Services, LLC is a fair honest company with excellent customer service. J&A Environmental Services, LLC built the brand by helping one family at a time to eliminate the mold in their environment. Call us 24/7 for all your Environmental needs. We have 100+ five star ratings on Angi's Leads and 34 five star ratings on Angi's Ads.
"Al and John were great - very informative and thorough, very neat. They needed to move a bunch of shelves in my basement so they can treat the walls and let them dry. They came back a few days later and put everything back. They also set up my new dehumidifier and explained how to operate it."
gene K on March 2025
Trust your next masonry project to the professionals. Not only do we offer you an insured and licensed specialist to lay out your project, we also provide you with exclusive warranties on our products and services. Ask your masonry expert during your estimate about what warranties we can offer you. With over 24 years of experience in masonry, Artistic Masonry Company is the premiere authority on all stone and brickwork in Philadelphia and the surrounding areas. No travel charges. No service fees. Award winning. Additional DBA - Artistic Masonry Company.
"Provided estimate 10/2021. Later told they were booked thru end of year and could schedule for the spring 2022. Called this summer after no follow up to email requests to schedule the work and still told they are short on help and cannot schedule the work at this time. Almost 10 months and a job can't be scheduled. Seriously, stop advertising if you can't or won't do the job."
Lisa J on August 2022
Trust your next masonry project to the professionals. Not only do we offer you an insured and licensed specialist to lay out your project, we also provide you with exclusive warranties on our products and services. Ask your masonry expert during your estimate about what warranties we can offer you. With over 24 years of experience in masonry, Artistic Masonry Company is the premiere authority on all stone and brickwork in Philadelphia and the surrounding areas. No travel charges. No service fees. Award winning. Additional DBA - Artistic Masonry Company.
"Provided estimate 10/2021. Later told they were booked thru end of year and could schedule for the spring 2022. Called this summer after no follow up to email requests to schedule the work and still told they are short on help and cannot schedule the work at this time. Almost 10 months and a job can't be scheduled. Seriously, stop advertising if you can't or won't do the job."
Lisa J on August 2022
We are a locally owned and operated basement waterproofing company with over 25 years experience. With over 10 years of servicing the tri-state area, we have many satisfied customers. In addition to our quality workmanship, our warranty is among the best in the industry! Call now for your FREE, no obligation, in home estimate.
"Great! Not going to lie, they are expensive. But they were quick, professional, and efficient. Completed the repairs and clean-up immaculately. Great job!"
Edward B on May 2023
We are a locally owned and operated basement waterproofing company with over 25 years experience. With over 10 years of servicing the tri-state area, we have many satisfied customers. In addition to our quality workmanship, our warranty is among the best in the industry! Call now for your FREE, no obligation, in home estimate.
"Great! Not going to lie, they are expensive. But they were quick, professional, and efficient. Completed the repairs and clean-up immaculately. Great job!"
Edward B on May 2023
Established in 2004, Groundworks is a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across New Jersey, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!
"Working with DJ from Groundworks (Select Basement) has been an outstanding experience. After struggling with various contractors who either failed to resolve our water issues or were unprofessional, DJ and his team truly stood out. DJ was incredibly helpful, patient, and responsive throughout the entire process. Our home is a ranch with 225 linear feet around the perimeter, and while other contractors insisted on installing a French drain for the entire length, DJ recommended a more targeted approach. He proposed installing the French drain for just 80 linear feet, focusing only on the areas where water intrusion was likely. His thorough explanations and prompt responses to all our questions were greatly appreciated. The workers arrived on time, maintained a clean work environment, and completed the job as promised. If we could give 10 stars, we would! Groundworks is a highly professional and honest company that didn't try to inflate the scope of work to charge us more. We wholeheartedly recommend them."
Elina B on October 2024
Established in 2004, Groundworks is a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across New Jersey, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!
"Working with DJ from Groundworks (Select Basement) has been an outstanding experience. After struggling with various contractors who either failed to resolve our water issues or were unprofessional, DJ and his team truly stood out. DJ was incredibly helpful, patient, and responsive throughout the entire process. Our home is a ranch with 225 linear feet around the perimeter, and while other contractors insisted on installing a French drain for the entire length, DJ recommended a more targeted approach. He proposed installing the French drain for just 80 linear feet, focusing only on the areas where water intrusion was likely. His thorough explanations and prompt responses to all our questions were greatly appreciated. The workers arrived on time, maintained a clean work environment, and completed the job as promised. If we could give 10 stars, we would! Groundworks is a highly professional and honest company that didn't try to inflate the scope of work to charge us more. We wholeheartedly recommend them."
Elina B on October 2024
Family owned. Over thirty years in business. Free estimates, all work guaranteed. Waterproofing One, now proudly serving central and south New Jersey, provides basement waterproofing, foundation repair, and mold remediation to the Greater Philadelphia, PA, area, including Montgomery, Chester and Delaware counties. If you are concerned about maintaining the value of your property, then saving your foundation from the results of water damage is a must. Basement leaks can lead to a cracked foundation and the growth of unhealthy mold. Not only do we guarantee to have low prices, but all of our work is warranted. We are licensed, insured and certified for your protection, and accredited by the BBB. Call Waterproofing One today to schedule your free estimate! We are currently licensed for the Delaware and New Jersey area, please see below licensing information. Delaware Licensing Number- 17-92051-13-000 New Jersey Licensing Number-13vh09291700
"From the first contact they were very responsive, friendly, and professional. They came right in on the estimate price and got the job done quickly with top quality work. I will definitely hire them again in the future."
Michael M on March 2021
Family owned. Over thirty years in business. Free estimates, all work guaranteed. Waterproofing One, now proudly serving central and south New Jersey, provides basement waterproofing, foundation repair, and mold remediation to the Greater Philadelphia, PA, area, including Montgomery, Chester and Delaware counties. If you are concerned about maintaining the value of your property, then saving your foundation from the results of water damage is a must. Basement leaks can lead to a cracked foundation and the growth of unhealthy mold. Not only do we guarantee to have low prices, but all of our work is warranted. We are licensed, insured and certified for your protection, and accredited by the BBB. Call Waterproofing One today to schedule your free estimate! We are currently licensed for the Delaware and New Jersey area, please see below licensing information. Delaware Licensing Number- 17-92051-13-000 New Jersey Licensing Number-13vh09291700
"From the first contact they were very responsive, friendly, and professional. They came right in on the estimate price and got the job done quickly with top quality work. I will definitely hire them again in the future."
Michael M on March 2021
We offer quality and affordable foundation repair and basement waterproofing services.
We offer quality and affordable foundation repair and basement waterproofing services.
Established in 1997, Groundworks is a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across Philadelphia & New Jersey, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!
"Tyrell did an excellent job correcting the mistakeS of the people who installed my basement waterproofing equipment. There was a terrible rotten egg smell and that's gone now. Tyrell cleaned up after himself, if any water spilled he made sure to vacuum it up and to dispose of everything in the proper place."
Alexander M on September 2023
Established in 1997, Groundworks is a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across Philadelphia & New Jersey, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!
"Tyrell did an excellent job correcting the mistakeS of the people who installed my basement waterproofing equipment. There was a terrible rotten egg smell and that's gone now. Tyrell cleaned up after himself, if any water spilled he made sure to vacuum it up and to dispose of everything in the proper place."
Alexander M on September 2023
Basement waterproofing services FAQs
Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:
Water in your basement, including damp walls or puddles on the floor
Mold spots in your basement
Musty smells or odors
Warped doors or walls
Cracks in walls
Insect issues, such as cockroaches and termites
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.
Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.
Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.
The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in.
If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.
- West Conshohocken
- Plymouth Meeting
- Gladwyne
- Bridgeport
- Lafayette Hill
- Haverford
- Fairview Village
- Villanova
- Bryn Mawr
- King Of Prussia
- Narberth
- Flourtown
- Radnor
- Wayne
- Chesterbrook
- Blue Bell
- Wynnewood
- Bala Cynwyd
- Dresher
- Merion Station
- Norristown
- Ardmore
- East Norriton
- Jeffersonville
- Oreland
- Audubon
- Devon
- Eagleville
- Havertown
- Gwynedd Valley
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