Professinal & experienced – EST. 1995

Insulation Service

National Grid Rebate Program

* Terms & conditions apply.


Our credibility as a company, is built by establishing a level of trust with our clients and we strive to further our credentials everyday.


Taking initiative, negotiating time honestly, and staying aligned with our personal and work values. That’s what integrity means to us.


Each and every member of our company is accountable of their words and actions through their belief in transparency in everything.

Our Service Areas

  • Brooklyn
  • Nassau
  • Queens
  • Suffolk

(631) 980-1800

Did you know?

Insulation has the following benefits:

  • Insulation prevents heat from escaping.
  • Limiting the amount of heat entering your home in the summer and escaping in the winter, you can greatly increase the comfort of your living space.
  • You may also greatly lower your heating and cooling costs.
  • Insulation contributes to the reduction of greenhouse gas emissions.


Get A Free Estimate Now…

No obligation.


Get Started Is As Easy as 1, 2, 3

1. Give Us a Call

Give us a call and talk with one of our waterproofing experts or fill out the free estimate form on this page and we will call you back within 24 hours.

2. Explain the Problem

On your call we’ll ask about your basement or foundation issues and answer any questions you have. There is no obligation on this call.

3. Schedule an Appointment

We’ll setup a time to come out to your home, look at the issues you are having, make recommendations and give you free waterproofing estimate.

Before & After



Problem:The old insulation in the house was a harbor of disease, with pest and mold infestation. Everyone in the house complained of having on-and-off allergy reactions. The air quality was inferior, with a thick layer of debris covering the insulation. The client also complained of inefficient heating and cooling in the house, along with hefty energy bills.

Solution: We removed and disposed of the old insulation and cleaned and vacuumed the attic. We then sprayed all exposed surfaces with an all-natural disinfectant that eliminates mold and mildew and repels rodents. Then we blew in cellulose insulation to cover the entire subject area to achieve a value of R40.  

Our disinfectant spray is highly effective against viruses and bacteria, has the lowest EPA toxicity rating, and is non-flammable, non-irritable, and odorless.

Our Professional Promise

  • We here at Zavza Seal LLC are licensed and insured.
  • We believe in honesty, integrity, and accountability as a company and therefore these are a part of our core values.
  • We know how essential it is to have a home that is both stables in its foundation and functions as how a home should.
  • Our promise is that there are no repairs, no contracting jobs that are too demanding or too challenging for us to do. This is why we have been in the business for 23 years now.

Client Testimonials

Professionalism, Punctuality, Quality, and Value!
Extremely knowledgeable professional reliable thorough crew from initial consultation straight through to the completion with detailed explanation & cleanup.
My basement water issues were dealt with well thought out suggestions using Hydraulic Cement, Bascrete & Fiberglass Mesh


Comfort Is Only a Phone Call Away


Let our friendly & experienced insulation experts perform an advanced multi-point inspection
of your home. We guarantee that we can get your home more comfortable year round !
Schedule Your FREE Estimate Today…

Why Hire Us?

We focus only on waterproofing and insulation services


We focus only on waterproofing to ensure you work only with the best

We use only high quality products for different Types of Insulation

Quality Products

We use only high quality materials to ensure years of uncompromising performance

Our different Types of Insulation service is very cost effective

Cost Effective

We deliver quality waterproofing service at reasonable prices

We provide five star services

5 Star Service

Our team is committed to delivering 100% customer satisfaction

5 Star Google & Home Advisor Reviews

100% Google's Five Star Reviews
100% Home Advisor Five Star Reviews