Lally Columns Replacement & Repairing Services

Foundations are responsible for supporting the whole structure. A sound foundation will only be possible with a robust base work that will keep it standing long-term. Several important parts of the system are responsible for maintaining the foundation support, and lally columns are one of them. If you fear your foundation is not strong enough or sustaining damage that will weaken it, it’s time to get professional help.

Our team of experts specializes in foundation repair and lally column installation for your home in Long Island. We will protect your home with knowledge, expertise, and professionalism! With more than 15+ years of professional experience, our team is always just a call away.

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What are lally columns?

The lally column was first manufactured in the late 1800s by a building company run by an Irish entrepreneur named John Lally. A long, round steel pipe positioned vertically to support beams or timbers across wide spans is known in architecture as a Lally column. The columns are usually placed in the middle of the span to help the weight of the building and lessen its tendency to sag or bend.

Ordinarily, though not always, the lally column is filled with concrete to increase stiffness and strength and eliminate associated foundation problems. In most residences and residential buildings, these columns are almost always located in the basement.

Lally columns may be left in place as extra columns, but they are typically used as temporary supports while permanent structural features are being built. The columns are typically equipped with head and foot plates to distribute loads and stop the cylinder from gouging into the supported wood.

The columns often have heights between 3 and 14 feet. The amount of weight a column can support increases with its length. For instance, a 6-foot long, 4-inch diameter column can support a maximum weight of 21,300 pounds. The weight rating of the column is reduced to 10,200 pounds as its length increases.

How do Lally Columns work?

It is frequently required to put temporary supports under floors or beams when new buildings are being built, especially when older buildings require some structural intervention. The lally column is one of the quickest, cheapest, and most effective ways to provide this temporary support and is good for providing foundation repair. These columns are hollow steel pipes with a height-adjustable mechanism at the top and a wide foot plate at the bottom.

These devices often consist of a screw-out portion with a header plate attached or several telescopic inner members that may be drawn out of the outer tube and secured after the appropriate height has been reached. If a lally column is excessively long, it is reasonably priced to shorten the outer pipe and reweld the footplate.

Temporary vs. Permanent Lally Columns

There are two types of Lally columns: temporary and permanent. Workers frequently use temporary columns to brace the floor joists above when removing a wall. On the other hand, endless columns are used in the basement or crawlspace to strengthen the structure underneath a house.

Adjustable Lally Column Range

Lally columns often have heights between 3 and 14 feet. The amount of weight a column can support increases with its length. For instance, a 6-foot long, 4-inch diameter column can support a maximum weight of 21,300 pounds. The weight rating of the column is reduced to 10,200 pounds as its length increases.

Non-Adjustable Lally Columns

One variety of these columns cannot be adjusted. Thus the steel column needs to be chopped to meet the required space. Although lesser diameters are occasionally available, these columns are typically made of 11-gauge steel and have a 4-inch diameter. These columns can be covered with wood and drywall or exposed when utilized in a finished basement. Painting exposed columns is an option.

Examples of the Use of Lally Columns

To maintain the house’s structural integrity when removing an interior, load-bearing wall, a builder or home remodeling contractor will replace the demolished wall with a series of lally columns. Later, when the wall is rebuilt, or another bracing is placed, these posts will be taken down. An example is a beam.

Short jack posts are frequently positioned in difficult to reach spots like crawlspaces and basements to fix sagging floors.

How we Install Lally Columns

We follow a step-by-step strategy to install the columns in place. These are:

  • Measuring the space
  • Attaching an upper plate
  • Attaching a plate to the lally column
  • Raising the lally column
  • Installing the column into a particular place
  • Raising the lally column
  • Removing the lever after fixing

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 lally columns

Quality Products

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

Our lally columns service is very cost effective

Cost Effective

We deliver quality waterproofing service at reasonable prices

We provide five star services

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Our team is committed to delivering 100% customer satisfaction

What’s Next?

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

We do the service requested


Our team of experts performs the work on location

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5 Star Google & Home Advisor Reviews

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Five Stars Reviews 1

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 2

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 3

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 4

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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