AJ Waterproofing

Basement Waterproofing, Wells and Pumps, Drain Pipe Installation,

About us

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.

Business highlights

48 years of trusted experience
Emergency Services Offered

Services we offer

Basement Waterproofing, Sump Pumps & Battery Back Up Pumps, Walls Refinished, Grading, Yard & French Drains, Mold & Mildew Treatments, Window Wells

Amenities

Free Estimates
Yes
Warranties
Yes
Emergency Services
Yes


Accepted payment methods

Check

Photos of past projects

Reviews

4.9199 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
93%
4
3%
3
1%
2
2%
1
2%


Rating CategoryRating out of 5
quality
5.0
value
4.9
professionalism
4.9
responsiveness
5.0
punctuality
5.0

Filter reviews by category

Showing 76-199 of 199 reviews

John W.
08/2014
4.0
basement waterproofing
  + -1 more
The repair process was extensive. They didn't just inject some epoxy into the cracks and hope for the best like some other firms that I've used. They used a three step system of packing the cracks, covering them with some type of rubberized compound, and then also digging below the slab so that if there were any other issues the water would go under the slab to the sump. So far no water problems. They also took steps to protect my rugs and cleaned-up very well afterwards. Good job.
Description of Work: Repaired wall cracks that were leaking water.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
4.0
responsiveness
4.0
punctuality
5.0

Yes, I recommend this pro
$2,500

Response from AJ Waterproofing
Thank you for the work and if you have any questions in the future please give us a call. A.J.

Ronald K.
08/2014
5.0
basement waterproofing
  + -1 more
Fixed from inside and outside. did nice job. no more water in basement
Description of Work: Fixed crack in basement foundation

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,200

GLENN C S.
08/2014
5.0
drain pipe
  + -1 more
The job went very well. They were there ahead of schedule and finished the job the same day. I was impressed with their work and clean up.They clean up very thing, there was no dirt or scrap left behind. A.J. himself was on site to supervise the entire job. He explained every detail of the job, and answered all my questions and concerns.
Description of Work: Installed a french drain

Rating CategoryRating out of 5
quality
4.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$8,000

Juan T.
07/2014
5.0
basement waterproofing
  + -1 more
Aj spoke with me on the phone and after explaining my situation he said I might not need waterproofing and explained some steps to assess if I needed waterproofing and advised me to be careful not to get something I did not need. He spent the time on the phone to explain me and was honest.
Description of Work: Ask him about waterproofing the basement

Rating CategoryRating out of 5
professionalism
5.0
responsiveness
5.0

Yes, I recommend this pro

Response from AJ Waterproofing
Thank you for the review and please give me a call with any questions. A.J.

Guy A.
07/2014
5.0
basement waterproofing, wells
  + 0 more
AJ was easy to schedule, came on time and installed the backup pump in about 2 hours. He then explained how it worked and everything is fine so far.
Description of Work: Install a water powered backup sump pump

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$800

Response from AJ Waterproofing
Thank you for the job. If you have any questions in the future, please give us a call. Thank you, A.J.

Patricia C.
06/2014
5.0
basement waterproofing, drain pipe
  + 0 more
They have been very helpful and very good. They were very prompt in returning my phone calls, giving me a quote and following up. I don’t know yet, so far, so good. They were courteous.
Description of Work: For the waterproofing, I did go with AJ Waterproofing. They came out for an estimate, they gave me an estimate and I’m still working with them to sort of finalize. They would do basements, waterproofing, and pumps.

Rating CategoryRating out of 5
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$6,000

Phyllis R.
06/2014
5.0
drain pipe
  + -1 more
It was very competitive. Overall, it was really good, very smooth. I didn't feel like he was trying to sell me or scare me on anything. It was very straightforward. He was very knowledgeable, he explained the whole process from start to finish, he gave us a very reasonable start time and he was able to quote us how much time, the start fee, how much money, all that during the initial consult. We asked for an email with everything he said during the consult and we got that almost immediately.
Description of Work: We have a quote from AJ Waterproofing for a french drain and mold removal.

Rating CategoryRating out of 5
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

David H.
05/2014
5.0
basement waterproofing, wells
  + 0 more
AJ responded to my inquiry promptly and came out the next day. I was in a pinch as I was trying to sell my house but was having trouble eradicating a new standing water problem. He came out and felt that the water was probably from a combination of factors but would likely keep recurring unless I invested a lot of money to eradicate all those problems. He proposed a sump pump to deal with the immediate issue given that he felt it would be difficult to completely get rid of all the water. We opted for the sump pump and he was able to get his crew there the next day and have the job done in 1 day. We have had no more water issues since!
Description of Work: Installed French drain and sump pump in front of basement that had standing water problems from several sources. Dug up concrete floor to grade floor towards sump and poured new concrete floor in that portion of basement on top of gravel.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,700

Response from AJ Waterproofing
Thank you for the job. A.J.

Susan W.
05/2014
5.0
plumbing, basement waterproofing, wells, drain pipe
  + 2 more
We had suffered a flood in our finished basement previously and wanted to address the problem to prevent future issues. AJ diagnosed our problem, and we were able to schedule work within the week. His crew did an awesome job, finished the work in one day, left everything clean, and showed us a test of how everything was working. We very impressed with the work, After a wet season w/ tons of snow and rain, we have had a dry basement for the past 7 months thanks to AJ's work.
Description of Work: AJ and his crew installed a French drain, new sump pit, new sump pump, and back-up water pump.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,500

frances M.
05/2014
5.0
plumbing, basement waterproofing, drain pipe
  + 1 more
The installation team did a fantastic job. They were ;prompt and cleaned up everything. It was one of the coldest days of the year but that did not deter them one bit. AJ personally demonstrated how the back up pump would work. We have since had torrential downpours and inches of rain at one time - and the system has worked perfectly. Great Job and has ;passed the monsoons of this past sping!
Description of Work: Installed French Drain around perimeter of house. Also installed a backup pump

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,250

David R.
05/2014
5.0
plumbing, basement waterproofing, wells
  + 1 more
AJ was early for our initial appointment. He took his time reviewing all of the potential issues that could have been contributing to our water problem. He offered very competitive pricing and quick resolution. Two days after our consult his crew was on the job. His crew was great. They worked hard and were efficient. AJ was willing to discuss and explain everything that his crew doing to resolve the issue. Bottom line: We have had two significant rains since AJ's crew was here and not a single drop of water in the house. I would recommend AJ and his crew to anyone.
Description of Work: Installed sump pump in basement, installed drains to extend downspouts further from the house and regraded small area near basement door.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
4.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$4,000

John R.
05/2014
5.0
plumbing, basement waterproofing, wells, drain pipe
  + 2 more
This project went extremely well with great results. We had incredible amounts of rain since he did the job and not one drop of water--without question- the amount of rain we had would have flooded the basement. AJ's came out quickly, gave an estimate on the spot and completed the work in very short order. A professional looking installation that works. Background: water leaked into the well of our cellar door. After spending lots of money on drains, caulking, patching, regrading, and waterpoof painting, we finally gave up and called in a pro. I wish we had done so years ago. AJ's immediately knew where the problem was (something we struggled to clearly identify). After so many years of trial and error, I was skeptical that this was fixable without replacing the entire door and concrete well. I was wrong and happy to be so!. They found the problem --which was at the floor of the concrete pad. They dug took out the concrete, installed a French drain all around and then installed a Sump pump inside the house to pump out any water. His team was quick and professional. I would Highly Recommend AJ's Waterproofing. Note: I"m not certain of the price, as my father paid the bill, but think I'm close to the amount, it was worth every penny.
Description of Work: My father had a "bilco type" cellar door entrance way that leaked and flooded his basement. AJ's came out and dug out the foundation of the doorway, installed a french drain and sump pump just in case.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,400

Anthony M.
05/2014
5.0
basement waterproofing, wells, drain pipe
  + 1 more
First Project was a water-powered backup sump pump, which if you have not yet considered is a worthwhile investment as you don't have to worry about testing/replacing the battery all the time. It never fails that when you get that big rain the battery is suddenly dead. This job was done the same day I called-him and has worked well when my primary sump failed. Second project was revising my faulty french drain (the prior system installed by many owners ago was faulty). His estimate was fair and he did not try to upsell me on things that I did not need the way that other outfits do, no scare tactics or B.S. I felt he gave me an honest opinion and a fair price. The work was prompt, professional, and the team did both projects on schedule and left the basement and my house extremely clean. We just had a huge rain yesterday and the french drain worked beautifully and my basement remained dry, so seems to have rectified my issue. This project came with a lifetime guarantee transferable to the next owner, which is good piece of mind for the investement
Description of Work: I have used AJ Waterproofing twice in the past year - both times was satisfied with the service and the work. 1) Installed Water-Powered Back-up Sump Pump: $700 2) Revised/Repaired a very old and faulty French Drain System: $3400

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,400

Alvaro P.
04/2014
5.0
basement waterproofing
  + -1 more
AJ is an amazing professional. On very short notice the initial visit was scheduled by the office. He arrived promptly and knew immediatly what was needed to do providing a quote AND scheduling right on the spot which is what I needed. He was able to work under the pressures of other contractors and made every accommodation needed without making it seem like it was a big deal. A pleasure to work with and I would highly recommend!
Description of Work: AJ and his team filled a small crack in the basement wall.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,100

Karen W.
04/2014
4.0
plumbing, basement waterproofing, wells, drain pipe
  + 2 more
The work itself went surprisingly well--AJ's workers were prompt and polite, very efficient and effective. The job, wh/ was quite extensive, was done quickly, and they cleaned the site each day and left my basement looking great. The problem has been since then: the sealer on the walls began cracking within a couple of months (work was done in late August, and had a hand-sized blister/crack by Oct). I contacted AJ about this in late 2013 and again in Jan 2014, both by phone and email, and got no response. I think the work was good, and my basement has been blessedly dry despite the heavy rains this winter/spring, but I wish I'd been prepared for the cracking and had had some follow up. I still think this is the best solution rather than putting sheeting over the walls or other methods I explored, wh/ can result in mold, but obviously the sealant is not a simple or maintenance-free answer either.
Description of Work: Waterproofed basement: added French drains; painted stone walls with sealer; sealed dirt-floored coal area with plastic, stone, and concrete; moved sump pit and installed new sump pump; ran pipe to street and connected gutters to new pipe.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
4.0
punctuality
5.0

Yes, I recommend this pro
$7,500

Gayle M.
04/2014
5.0
basement waterproofing
  + -1 more
He did some waterproofing in my basement last June. So far the basement has been fine and the sump pump is working great, but the backup battery has failed. It is however under warrenty, so I am calling him to have him come back out to take look at it.
Description of Work: basement waterproofing
Rating CategoryRating out of 5
Yes, I recommend this pro

Margaret H.
04/2014
5.0
basement waterproofing
  + -1 more
AJ's assessment was thorough and helpful. All my questions were answered completely which helped in making a decision on what work to proceed with. Installation day went like clockwork. AJ's crew was spot on time starting and completing the work and meticulous in protecting the work site and sealing off the perimeter from dust and debris escaping. In the end, a quick round of wiping hard surfaces and vacuuming for dust escaping through the air vents in the house was all that was required on my part. The crew did not miss a beat dealing with my extra sturdy basement slab that was as thick as 8-9" at the edge and required cutting through tile in one section. I appreciated that the team left a clean edge on the existing floor tile that was virtually chip free. Where the exhaust pipe was tied into the gutter the team was careful to complete the work with minimal disturbance to the landscape. I appreciated having the benefit of a crew chief who has been working with AJ for more than 10 years and also that AJ himself came out for the assessment, site setup, and progress check during the course of the installation. Last but not least - I have been freed from mopping and bailing during heavy rains and everything is working as expected.
Description of Work: AJ's team installed approximately 60' of french drain and a sump pump and cleared for mold in an area of moisture accumulation. The sump pump exhaust was tied into a gutter drain and primary access to the work site was through window wells with secondary access through the garage and main hallway. The job did not include installation of a backup system (to be completed in a future package of work).

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,500

Yee C.
04/2014
5.0
basement waterproofing
  + -1 more
I called AJ on a Friday evening asking questions about crawl space encapsulation. I inquiry about the process and cost because of a property I am to purchase. He was nice enough to explain how is done and also provide an rough estimate. I will hire him for the project if I ended up purchasing the property.
Description of Work: consultation on encapsulating crawl space

Rating CategoryRating out of 5
professionalism
5.0
responsiveness
5.0

Yes, I recommend this pro

Lori S.
04/2014
5.0
basement waterproofing
  + -1 more
The visit with AJ Waterproofing went very well. It was obvious that the man was very knowledgeable about moisture getting into homes. In addition, AJ was very courteous and very helpful in explaining the situation. He also has excellent staff working with him. The girl with whom I spoke over the phone was a gem!!
Description of Work: AJ inspected the outside cinder block wall where black mold formed and the outside grading against the wall . He gave me suggestions on how to remove the mold and how to prevent it from forming again.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$49

thomas R.
03/2014
5.0
basement waterproofing
  + -1 more
I picked AJ based upon Angie's list reviews. He came out to my house on time. The first time that day we scheduled did not work for him, but he called me to tell me he needed to change the time which I appreciated. I had water coming into my basement at the floor level right under the basement window each time it rained. He looked both in my basement and outside at the side of my house. His first inclination was that there is a crack in the foundation on one or the other side of the window causing the leak. He recommended digging down to the footers and examining the foundation for cracks. He happened to be available the very next day, and I had him start right away as I had been waiting all winter for the ground to thaw for this to be repaired. He brought (3) men to dig. Sure enough, there was a crack. They repaired the crack and refilled the hole with additional soil he brought, along with what I had. Then, they took some decorative river rock that I had and placed it on top of the compacted soil. They pitched the ground so the water would run away from my house. This past weekend we had 2 1/2 inches of rain and NO water! Very happy...
Description of Work: Repaired foundation crack on the side of my house that was causing water to come into my basement each time it rained.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,800

veronica G.
03/2014
5.0
basement waterproofing
  + -1 more
They were very efficient and they got it done really easily. The only concern I have is that I had a plumber come to replace my hot water heater and he said that the copper piping that they put in was only a quarter inch and it must be one inch.
Description of Work: I used AJ Waterproofing. They waterproofed my basement. They also did wall parging and painting of the basement.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$12,000

Steven F.
02/2014
5.0
basement waterproofing
  + -1 more
I recently contracted an interior basement waterproofing job with AJ. My wife & I just bought a foreclosure and within 2 weeks of moving in our basement flooded with 30" of water. Our Bilco entry walls had deteriorated and water push 2 big holes through soft spots it found and in a short time frame, rose to 30". Our newly installed hot water heater and HVAC units were ruined. Our budget had taken a huge, unexpected hit. We called about 7 contractors for bids. AJ was our last bid that we set up. We explained to him our situation and our budget constraints. We also spoke about the importance of how fast this needed to be done to protect what is basically the lifeline of our home. AJ understood our situation & worked with us on setting up a payment plan, He told us not to stress about the money, he'll get the basement done, and everything will work out. He didn't know us from Adam, but he was the only one willing to take us for our word that we would pay him within a reasonable timeframe. He was willing to begin work that day but we told him to hold off for 2 days so we could have our water heater & HVAC units ordered and re-installed (again!). The work we needed done was 100' of interior French drain installed, new/relocated pump well, water pressure backup system, 2 outdated brick walls & fireplace removed, tile floor removed, our Bilco entry filled in and sealed, & 2 windows replaced. AJ gave us a timeframe of 3 days for everything & he completed everything in exactly 3 days. I couldn't believe how fast him and his crew were. The basement looks great, We can now live stress free knowing that our basement is updated and modernized & no longer have to worry about basement flooding & ruining our home. Everything AJ said he would do he delivered on. We highly recommend using AJ for your basement needs. Thank you for everything AJ.
Description of Work: Interior Basement Waterproofing

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$8,600

Brett S.
02/2014
5.0
basement waterproofing
  + -1 more
Although I did not end up using his services, his price was very fair and I would recommend giving him a call.
Description of Work: I met with AJ for a bid on a French drain. He was very responsive and knowledgable.

Rating CategoryRating out of 5
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
4.0

Yes, I recommend this pro

Joseph P.
02/2014
5.0
basement waterproofing, wells, drain pipe
  + 1 more
I could tell customer satisfaction is very important to AJ. He was at my house for a job shortly after reading a semi-negative review from a customer, based entirely on payment, and I could tell he was very upset by it. I just read the review that I assume he was talking about, and I want to state that I had exactly the opposite experience with AJ, and I just used his company for the 3rd time last week. For an unexpected project done last Fall (a cracked exterior drainage pipe which caused a leak and some mold in the basement), AJ was very accommodating with the payment, asking for only a portion of the payment upon completion and letting me pay the balance over the next 4 months, since I was financially strapped at the time. His flexibility and understanding with the payment is one of the reasons I chose his company. Overall, I highly recommend AJ Waterproofing. As mentioned above I just used his company for the 3rd time last week. He seemed very knowledgable about the work that needed to be done, and the work his company did was thorough, very clean, and solved the basement/water issues I was having. His estimates were better than most I received, and overall I feel like I got a good value for the money spent. Again, highly recommended.
Description of Work: 2014 - Had a back-up water powered sump pump installed 2013 - Replaced a cracked exterior drainage pipe and had some interior mold removed 2007 - had a French drain & sump pump installed in crawl space

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$700

Calvin L.
02/2014
5.0
basement waterproofing, wells, drain pipe
  + 1 more
I am a very thorough person who typically do a lot of research before hiring someone. AJ was the seventh provider that I called. He came in right on time, did not just look at the wet spot, but put up the carpet and carefully examined the situation in the whole basement. His explanation of the water problem was different from other providers, but is very clear and logic. I am an engineer and i know his explanation was correct. He did not offer the lowest price, but I ended up hiring him to do the job. I am very satisfied with the job that they did in my basement. his guys came in early in the morning, and immediately covered everything and isolated the working area from upstairs. they worked very efficiently and took care of all the details. they very very nice and answered all of my questions. After the job, they cleaned up everything, and the next day, his handyman came in and finished the painting. my basement looks great now, even better than before. AJ is a very honest person, he is very straightforward, but I appreciate his sincerity. He is a happy person and I really enjoyed communicating with him. I actually have recommended him to several of my friends. what a nice experience.
Description of Work: installed french drain and sump pump

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$4,850

Contact information

3774 Kratz Rd, Collegeville, PA 19426

http://ajwaterproofing.com

Service hours

Sunday:
Open All Day
Monday:
Open All Day
Tuesday:
Open All Day
Wednesday:
Open All Day
Thursday:
Open All Day
Friday:
Open All Day
Saturday:
Open All Day

Licensing

Bonded

Insured

Licensed*

Trade License Number
PA054659
Trade License Locale
PA
Trade License Authority
Pennsylvania Office of Attorney General - Bureau of Consumer Protection
Trade License Expiration
02/05/2026
State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

*Contact business to see additional licenses.


Service Categories

Basement Waterproofing,
Wells and Pumps,
Drain Pipe Installation,
Plumbing,
Homebuilders,
Foundation Repair,
Electrical,
Mold Testing & Remediation

FAQ

AJ Waterproofing is currently rated 5 overall out of 5.

Sunday: Open All Day

Monday: Open All Day

Tuesday: Open All Day

Wednesday: Open All Day

Thursday: Open All Day

Friday: Open All Day

Saturday: Open All Day

AJ Waterproofing accepts the following forms of payment: Check
Yes, AJ Waterproofing offers free project estimates.
No, AJ Waterproofing does not offer eco-friendly accreditations.
No, AJ Waterproofing does not offer a senior discount.
Yes, AJ Waterproofing offers emergency services.
Yes, AJ Waterproofing offers warranties.
AJ Waterproofing offers the following services: Basement Waterproofing, Sump Pumps & Battery Back Up Pumps, Walls Refinished, Grading, Yard & French Drains, Mold & Mildew Treatments, Window Wells

Contact information

3774 Kratz Rd, Collegeville, PA 19426

http://ajwaterproofing.com

Service hours

Sunday:
Open All Day
Monday:
Open All Day
Tuesday:
Open All Day
Wednesday:
Open All Day
Thursday:
Open All Day
Friday:
Open All Day
Saturday:
Open All Day