Medford’s Leading Insulation Specialists

Unmatched insulation services expertise IN Medford

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Zavza Seal LLC

Waterproofing & Insulation Done Right

The Top Insulation Services Contractor in Medford

Keeping your home warm is our
#1 priority

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insulation Services We Offer in Medford

Residential & Commercial Insulation Services


Blown in Insulation

Install or upgrade

Blow In Insulation

The term blow-in insulation (or loose-fill insulation) refers to the process of filling stud or joist cavities or covering attic floors, with any loose material that has a good insulating R-value. Because loose-fill insulation is a monolithic layer of insulation without seams like are found in batts, studies have shown that loose-fill insulation performs up to 22% better than batts of the same R value.

Batt, Rolled or Reflective Insulation

Install or upgrade

Batt, Rolled or Reflective Insulation

Batt insulation is a type of insulation blanket. These are pre-cut sections of insulation that are usually fiberglass, although cellulose, mineral wool, natural fibers and plastic versions are also available. Best for unfinished walls, floors and ceilings.

Spray Foam Insulation

Spray Foam Insulation

Spray foam is a chemical product created by two materials, isocyanate and polyol resin, which react when mixed with each other and expand up to 30-60 times its liquid volume after it is sprayed in place. Spray foam has great insulating properties and is relatively easy to get into difficult to reach areas where traditional insulation simply wouldn’t work or would be very difficult to make work.

Foam Board or Rigid Foam Panels

Foam Board or Rigid Foam Insulation

Rigid foam boards are more moisture-resistant than fiberglass. Therefore, they are frequently used to insulate basement walls, kitchen areas, and other parts of homes prone to humidity. However, rigid foam boards are not flexible, so they are not well-suited to insulate irregular surfaces such as domes or arches.

The Importance of insulation

Insulation of your home or business is paramount to ensuring that your structure keeps the heat in when it is cold outside and reduces your energy costs.

The amount of money you will save by the insulation of your home will depend on different factors such as the type of insulation and the size of your house. Furthermore, you will need to integrate more or fewer insulation measures depending on how old your house is. This is a wise investment, as you do not need any planning permission to fit in insulation measures and they will pay back eventually.

Insulation is also important during summer to keep the heat out and ensure a comfortable living and working environment.

Zavza Seal is an expert serving insulation services to Medford residents. Our team of insulation experts will assess your home or business and offer the best solutions to ensure a warm winter and a cool summer.

The areas of your home that should be insulated



Attic Insulation

If you don’t insulate your attic, heat will escape through the roof and cool outside air will flow into your space. Therefore, you should prioritize insulating your attic, especially its floor. Attic insulation keeps homes warm in the winter and cooler in the summer. Typically, attic insulation installers will use loose-fill or batt insulation in this area of your home.


Basement Insulation

Do you have an unfinished basement? Does it always seem chilly? Insulation will instantly add warmth to this area of your home. Additionally, insulation provides protection against moisture, so you won’t have to deal with mold or pests. Finally, once you add insulation to your basement’s ceiling, floors, and walls, your heating and cooling systems won’t have to work as hard.


Ceiling Insulation

Since heat rises, your home quickly loses heat through its ceilings in the winter. However, come the summer, you’ll find the highest points of your home to be extremely hot. Insulated ceilings can help subside these drastic temperature changes; insulation slows heat transfer, so ceilings stay warm in colder months and cool in warmer months. Plus, insulation prevents condensation from forming on ceilings and causing moisture-related issues, such as mold.


Floor Insulation

If floors in the unheated areas of the home, such as your crawl space or garage, are uninsulated, they quickly lose conditioned air and heat. Insulated floors help eliminate drafts, reduce moisture, and retain heated and cooled air. Furthermore, insulated floors decrease noise.


Wall Insulation

Wall insulation primarily helps with comfort. Air can escape through your walls, especially if you don’t insulate your attic. Thus, to prevent drafts, we suggest insulating interior and exterior walls to create an effective barrier between the inside and outside of your living space. An additional perk to wall insulation is that it provides privacy; like insulated floors, insulated walls will dampen sounds.

why hire us?


Target Focus


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

High Quality Best Buy Products

Best Buy Products

We use only best buy materials to ensure years of uncompromising performance

Cost Effective

Cost Effective

We deliver quality work at reasonable prices

Five Star Service

5 Star Service

Our team is committed to delivering 100% customer satisfaction

What’s Next?


Request a Consultation

Request a Consultation

Fill out our online form and share
with us your needs

Schedule a Meeting

Schedule a Meeting

We set up a phone call and a subsequent meeting on location to understand the size of your project

Quote / Contract

Quote / Contract

We deliver a quote for your work and if you agree provide a contract to start the job



Our team of experts performs the work on location

100% Satisfaction

100% Satisfaction

Our project manager ensures you are completely satisfied with the results

5 star google &
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Five Stars Reviews

Annette Casatelli

I received a few quotes to get the walls in my home filled in with blown in insulation. Zavza Seal was affordable and they did an excellent job.

They were very concerned with cleaning up, which I appreciated. I felt the difference in my home immediately. No more freezing cold walls. I recommend them, hands down.

Five Stars Reviews

Noemi Herles

Our experience with Zavza Seal was wonderful and smooth. The crew is well organized. They listen to your plans. They showed out in time. They left everything clean. They did an amazing job! I highly recommend this company.

Five Stars Reviews

Ellen Szuchmacher

Efficient, courteous and responsible workers. The job was quoted as being completed in 2 days but more work was required and they returned on the 3rd day and completed the job without additional charges. They reinsulated my crawlspace (not an easy job). I recommend Zavza Seal without reservation.

Five Stars Reviews

Michael Rutigliano

Couldn’t be more satisfied with the job Zavza Seal did. Brendan and Jake were accommodating, fair and extremely knowledgeable. Their team worked incredibly hard that day under difficult conditions and did a great job. I manage a multi-unit HOA and we will definitely be using them again.

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