
Serving Great Neck, NY and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"George did the waterproofing in my basement, it was a good job"





+12


Serving Great Neck, NY and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"George did the waterproofing in my basement, it was a good job"





+12

Serving Great Neck, NY and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
"Alex was amazing!! We had a crack in our foundation that another company attempted to repair numerous times. We were fortunate enough to hear about ProSeal and I am happy to report not only did Alex repair the crack to near perfection but the work was done timely, neatly and his customer service skills are top notch. I would HIGHLY recommend ProSeal for all of your foundation needs."

Serving Great Neck, NY and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"I am not yet able to determine whether or not the expected results of the basement waterproofing work is satisfactory as I have not had a rainstorm or heavy rain since the basement waterproofing work was performed. I will, however, pay great accolades to Quality 1st customer service, especially to Kyle. I was troubled with the proposal for the job as certain aspects of the language would have left me at an unfair liability should something had gone wrong with the work. I explained this issue with Kyle who followed through until the proposal was acceptable to me. The work crew was exceptional in that they were punctual, worked quickly, neatly and were, without question, among the hardest workers ever to have done a construction project for me. The crew was headed by Wilver along with his guys - Manuel and Jose. Again, I will refrain from commenting on the expected results of the work performed until the appropriate circumstances occur. In summary, I would say that Quality 1st demonstrated A1 customer service and the crew that performed my basement work were hard workers with great attitude."





+181

Serving Great Neck, NY and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"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."





Serving Great Neck, NY and surrounding areas
Approved
In business since 2006
Free estimates
Warranties offered
"They were very helpful and professional. Glen responded to all of my questions in depth and worked hard to get my business to waterproof and eliminate mold. There have been a few hard rains since they completed their work, and I haven't had any water in the basement so far."


Serving Great Neck, NY and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"Bobby and his crew answered all my questions, they were respectful and extremely helpful. Bobby and crew went above and beyond what was on the contract. My house looks beautiful, they power washed entire building, pained the sidewall of the building with thorocoat, front of house was pointed where necessary and applied waterproofing sealer, glass block window, painted stoop and stairs, cemented cracks on stoop and sidewalk, painted outside railing and applied cement in basement where needed. I have to say some of what was done wasnâ  t even on the contract, so they went above what was expected and to my surprise Bobby didnâ  t charge extra. Being a single woman who has had bad experiences with contractors and their disgraceful personalities, having Bobby and his crew work on my property was a pleasure and breath of fresh air. I would hire Bobby and his crew again and recommend them in a heart beat. Best work!!"





+66

Serving Great Neck, NY and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"I used these guys for a remodeling job which included bathroom renovation, some minor electrical work, knocking down and installing new dry wall and painting. Class acts! We all hear horror stories about contractors not calling you back or not showing up on time or showing up at all. Not these guys! Hector, Moises and their crew really did exactly what they said they were going to do. Friendly, responsive and oh yea, solid work! Professional through and through! Highly recommend them and would use them again!"





+165

Serving Great Neck, NY and surrounding areas
Approved
In business since 1994
Free estimates
Customers say: Quick response
"Lorenzo did a great job. All his guys were very attentive. Everything was done right on schedule. All the work was perfect. He did a great job installing my foundation, Belgium block driveway and major regrading of the property. I would hire him again in a heart beat."





+72

Serving Great Neck, NY and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"I had a crack in my foundation that needed to get repaired quickly. They did a fantastic job and were a pleasure to deal with. I recommend them for anyone that’s in the same position that I was! "



Serving Great Neck, NY and surrounding areas
Approved
In business since 1981
Free estimates
Warranties offered
"Very well. Workers very punctual. Did a great job repairing the brickwork around my pool."





+180
From average costs to expert advice, get all the answers you need to get your job done.

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If you need to waterproof your basement, consider essential cost factors, including basement size, sealant type, home age, and more.