Zavza Seal is an experienced high end general contracting firm with a passion for delivering excellence. Serving Long Island communities including Suffolk, and Nassau counties. We are a one-stop shop construction company that specializes in the following: waterproofing basements, paving and sealing driveways and garages, waterproofing parking structure and concrete commercial roofs. Concrete Swimming pool buildout, Stone paving and tuck-pointing work. If you are considering any type of waterproofing project and concrete work we are here to help and can provide valuable, time-saving advice.
We also specialize in waterproof concrete for professional and residential use called Basecrete. Call today for a free estimate!
I hired Zavza Seal to waterproof my basement and they did an exceptional job! The team was professional, thorough and went the extra mile to ensure everything was done perfectly. I'm happy with their work and highly recommend them to anyone!
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Lisa K.
06/2024
5.0
This was the second time I hired zavza seal. This time I needed help with attic insulation for my parents house. Starting with setting up the free appointment, ending with the crew and quality of the work - they deliver a great experience and I highly recommend them for anything waterproofing, insulation, concrete and foundation fixes. If you are looking for a contractor and donâ t know who is trustworthy and professional, go with Zavzaseal, you ll be in a very good hands.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Gary G.
01/2024
5.0
We hired Zavza Seal to repair cracks in our basement. The work was done carefully and efficiently at a fair price.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$2,900
Lawrence B.
12/2023
5.0
Zavza took care of my home insulation project. Crew was very professional and cared about both, the quality of the work and meeting the deadlines. They went extra mile to make sure job was done properly and I highly appreciate that.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$17,500
Matt T.
09/2023
5.0
No comment.
Rating Category
Rating out of 5
quality
2.0
value
5.0
responsiveness
1.0
Terry S.
08/2023
5.0
Terrific in all aspects from evaluation, to proposal through contract. They were thorough in determining what was required & had to be done to fix the long standing waterproofing problems. They proposed different solutions to the various problem areas. They were responsive to questions & any matters raised. Once I was comfortable with the work to be performed & the estimate work was immediately scheduled. Workers arrived as scheduled & knew what was required. They were courteous, professional & knowledgeable. The crew completed the work timely & left the job clean & in good order. Zavza is an honest, reliable & trustworthy company who knows their business & effectively performs their trade. I believe once & for all my waterproofing issues have been effectively addressed.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Michael O.
08/2023
5.0
The crew did a great job for us! They worked very hard even though the temperatures were in the 90's for the first 2 days of the job. I would definitely recommend them to others.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Natalie U.
07/2023
5.0
We couldnâ t be happier with the job that Austin did spraying foam to insulate our basementâ s rim joists (where the top of the foundation meets the wood framing). He measured the rate of air exchange before and after, and it was reduced from more than 10 times an hour to 5.6 times, a significant reduction that will result in future energy savings. Weâ re just sorry we didnâ t do this sooner. Zavza Sealâ s pricing was competitive with that of two others. Austin also identified and measured another source of wasted energy that we may address in the future.
Rating Category
Rating out of 5
quality
5.0
value
4.5
responsiveness
5.0
Yes, I recommend this pro
$6,000
Nick F.
07/2023
5.0
We would like to give a 5 star rating to Austin. He is an asset to your company and should be recognized as such. His personality and work ethic are his greatest strengths. He also knows how to work with others which is another reason he should get an additional 5 star also, his crew were amazing workers and all were very nice. We would have no problem recommending them all to our friends and family. Thank you, Nick and Bernadette
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$5,000
Louis P.
05/2023
5.0
None
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$7,400
Richard R.
03/2023
5.0
Zaza seal did a blown in insulation project for one of my bathrooms, yesterday. They were punctual, highly professional, and left the area where they did the work looking like it had never been touched, which was great. They cleaned up well, afterwards. The supervisor on the job, Anderson, could not have been nicer or more responsive to my questions.
Rating Category
Rating out of 5
quality
5.0
value
4.0
responsiveness
5.0
Yes, I recommend this pro
$3,735
Sherman G.
03/2023
5.0
Awesome people. Very professional and knowledgeable and very clean. They make sure my furniture was covered and protected then also make sure everything was clean after completing the job. Will definitely do business again in the future.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Dorian O.
03/2023
5.0
Excellent work by Zavza Seal!
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Kelly L.
03/2023
2.0
I paid $6k to fix foundation leak. First big rain I had a basement full of water. They were supposed to be here at 7am this morning. No show, no call, nothing. I had to call them. Now they say theyâ ll be here tomorrow. Stay tuned.
Rating Category
Rating out of 5
quality
1.0
value
1.0
responsiveness
3.0
$590,000
James D.
02/2023
5.0
I hired Zavza Seal LLC to waterproof the foundation in my basement. Anderson and his crew went above and beyond with the project. They were on time, clean and responsive to any questions I had. I would gladly use them again.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Keith S.
01/2023
5.0
.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
P M.
12/2022
5.0
The Zavza Seal team were polite, professional, proficient. They removed tile from our Church basement fellowship hall and replaced with an overlay of colored painted and speckles over our existing concrete. The work was done with care and concern to produce the best possible outcome. They worked diligently to get the work completed to our satisfaction. Excellent workmanship.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
John S.
12/2022
5.0
Great experience
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Gary G.
11/2022
5.0
Every member of the Zavza team was committed to getting the job done correctly and in a timely fashion. They all were polite, professsional and worked diligently to get the job done to our satisfaction.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$2,900
Wilson K.
11/2022
5.0
It was fast & thoroughly finished.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$9,500
Perry T.
11/2022
5.0
Very dependable.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
John K.
11/2022
5.0
I hired zavza seal to finish my basement and I am pleased with their work. I have dealt with many contractors over the years, unfortunately these experiences are often full of frustration and stress. Not the case with Zavza seal, they are completely professional and put the customer first. Anderson and his crew were courteous, hard working, and efficient. They came when they said they would and cleaned up everyday. Jake was the project manager for this job, he is an honorable man and very easy to work with. He was onsite every day from the estimate to the finishing touches. There was constant communication, I knew what the plan was each day and he was always very responsive to any questions. I've had other pm's disappear to other jobs, or push me toward doing things in a way that was easiest for them. Jake was very collaborative, and his focus was completing the project to our satisfaction. Midway through the work I asked for a couple of changes that were not in the original estimate (storage room and laundry shelving). Zavza added them in at no extra cost. My house is old and presented challenges with regard to the floor and ceiling joists. The crew took the time to do things the right way without shortcuts. Jake came out and worked a full Saturday and Sunday to ensure that the ceiling was right and the project was finished on time. Not many companies take pride in their work like this these days. It was refreshing to see. My basement is now the nicest room in the house. Zavza Seal went above and beyond and I wholeheartedly recommend them.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
$16,000
Jeanette G.
10/2022
5.0
Zavza Seal is an excellent business! We had a leak in our basement which was attributed to a problem with the foundation. The project manager responded promptly, clearly outlined the specifics of the problem as well as the plan for the repair. He patiently answered all of our questions and concerns. The estimate was fair and reasonable. The crew also arrived promptly and went above and beyond to assure the job is well done. We are extremely satisfied with the job. Zavza Seal is truly an outstanding group of professionals that I highly recommend.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Kevin P.
09/2022
5.0
When I am having work done on my home, I want folks that are knowledgeable, reliable, and punctual. I had a REALLY good experience with Zavza Seal. They are an incredibly well-run organization. Before any work is done they provide you with a PDF estimate with photos and detailed descriptions of the work being done. You then receive an invoice (that agrees to that estimate) payable by checking or credit card (via Quick books). Their billing department is separate from their workers, and all workers were supervised by a manager who was also responsible for doing the estimate. From the start of the estimate, I felt taken care of. Dice their admin was incredibly responsive to all my questions, emails, and texts. Jake the manager of the team was incredibly thorough when overseeing my project, and Andersen (who was doing a lot of the project work), was incredibly professional and always took the time to explain to me what they did and what was left to do before they left my home each day. Everyone always showed up on time when they said they would. I had a relatively large project - waterproofing my exterior and then replacing a sinking floor in my porch from old water damage. They tackled outside first to ensure no more water would get into my interior. I was sealed up outside with base create (concrete used for pool settings), and sealant. They addressed every single spot I wanted to be covered, and also sealed up spots I had no idea needed sealing. They worked around my schedule, and it was great that I had a point of contact outside of the day-to-day workers (Dice their admin) that I could reach out to for scheduling, questions, invoicing, etc. I love the fact that these are two separate parts of the business. Each part does its job very well and it makes a great customer experience. My porch floor was a larger project since the beams holding the floor up were rotted and needed strengthening. The floor needed to be ripped up and with that - we went with all new tile. I was talked through every step of the way, and where project costs needed to be increased, it was very transparent and I was always consulted and presented options and reasoning. Every quote for all work done was incredibly reasonable. I never felt gouged or nickeled and dimed. It was always a fair price for the work and materials. I could not ask for better communicators. Before I settled up the final payment I was walked through all the work done, and they understood I wanted to run my water test before paying the balance to ensure all the leaks I was having were settled. This required them to wait 48 hours (for the base to create and sealant to cure) for me to do that, and I never felt pressured, or questioned as to why I wanted to do that. The basement is dry now, and I have peace of mind! This company cares about doing good work, standing by that work, and ensuring the customer is satisfied. Every question/concern I had was addressed and answered. I always try to be a good partner to the contractors I hire (being clear and transparent about what I want done, limits to my schedule/budget, honest assessment of the situation, paying on time when work is done, etc.), and I appreciated that Zavza Seal recognized that, and reciprocated it, not all contractors do. The work done on my home came with a 5-year warranty. I hope that I never have to use it, but I know this team stands by their work, and I am confident I will be taken care of if I have any issues. This is incredibly rare these days, and I will be recommending, and using them in the future! Seriously the best experience I have ever had with a contractor.
Rating Category
Rating out of 5
quality
5.0
value
5.0
responsiveness
5.0
Yes, I recommend this pro
Shira N.
07/2022
5.0
Zavza go above and beyond expectation. They are decent reliable and expert and care about doing the job right. They are honest and trustworthy and Iâ  m grateful to them for their efforts and expertise. I recommend zavza hoghly and without reservation.