TELEPOST / JACKPOST ADJUSTMENT

UNEVEN FLOORS OR HARD TO CLOSE DOORS?
Your home may just need a jack post adjustment.

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AAA SOLID FOUNDATIONS

TELEPOST ADJUSTMENTS

NOTE

At this time, AAA Solid Foundation is no longer offering telepost adjustments or replacements as a standalone, singular service.

At AAA Solid Foundation, our primary focus remains delivering comprehensive, long-term structural solutions for your home.

Due to our current high workload with full foundation repair, wall bracing, exterior waterproofing and interior water management projects.

We are no longer offering telepost/jack post adjustments or replacements as a standalone, singular service.

However, telepost service and adjustments remain fully integrated into our complete foundation repair packages. If your home requires telepost work as part of a larger structural stabilization or repair project, our team continues to provide this service.

We appreciate your understanding and look forward to protecting your foundation.

Learn how to adjust a telepost yourself below.

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WHAT IS A TELEPOST
FUNCTIONS OF A TELEPOST

ASK AN EXPERT

If you still have questions about any of our services, please feel free to ASK AN EXPERT or review our FAQ section.

CAN I ADJUST A TELEPOST MYSELF?

Adjusting a telepost (also known as a jackpost or screw jack) is a critical task.

It’s usually done to level sagging floors, but because you are dealing with the structural load of a house, doing it too fast can crack drywall, jam doors, or cause structural damage.

The golden rule of adjusting a telepost is patience. You are moving a house, and the house needs time to settle and adjust to its new position.

SEE OUR STEP-BY-STEP GUIDE

WHAT TOOLS ARE NEEDED TO ADJUST A TELEPOST?

Before you begin, ensure you have the right tools on hand:

  • Heavy-duty adjustable wrench or pipe wrench (sized for the telepost’s adjustment nut).

  • Laser level or a long spirit level paired with a straightedge.

  • Tape measure to track your progress.

  • Pen and paper (or your phone) to log your adjustments and dates.

  • Safety gear: Safety glasses and a hard hat (highly recommended when working under heavy structural loads).

Important Notice

Adjusting a telepost affects the structural integrity of your home and carries inherent risks. By reading or using this guide, you agree to our Legal Disclaimer & Terms of Use. If you do not agree, do not attempt these adjustments.

STEP ONE

Establish a Baseline

Before any adjustment begins, you must determine exactly how much the structure needs to move. This step is about precision measurement.

Use a professional self-leveling laser to project a reference line. This established line allows you to measure the exact distance to the sagging beam using a tape measure. Log this baseline measurement. It is your only reference for tracking progress in increments as small as 1/16 of an inch.

STEP TWO

Check for Stability
You are about to alter the structural load path of the house. You must verify that the components can handle the change. The post itself cannot just “push” up; the ground must provide equal resistance.
 
Clear any debris from the base plate and inspect the concrete slab beneath it. Ensure the plate is flush. If the concrete slab is cracked, weak, or showing signs of sinking, you must stop immediately and repair the footing before adjusting the post.

STEP THREE

Turn the Adjustment Nut
This is the central physical action, and where patience is critical. Using a large adjustable wrench, grip the hexagonal adjustment nut and apply slow, steady force.
 
The golden rule: Limit your adjustment to a maximum of 1/4 turn per session. This minimal rotation raises the beam only a fraction of an inch (approx. 1.5 mm). This controlled change is necessary to avoid shocking the structural frame of the house.

STEP FOUR

Enforce the Settling Period
This step is passive but non-negotiable. After your 1/4″ turn, you must walk away and wait.
 

As the graphic shows, a delay of at least 7 days is required before the next adjustment. This time allows the entire wood framing system above—joists, subfloors, and drywall—to slowly relax and redistribute the new structural stress.

Attempting to lift too quickly is the primary cause of cracked drywall and jammed doors.

STEP FIVE

Monitor the Living Space
During the settling period, you must actively observe the living spaces above. While the telepost is in the basement, the symptoms are upstairs.
 
Walk the floors to check their feel, but specifically check interior doors. A sticking door that now swings freely is a sign of progress. Conversely, if a door starts binding, or if you notice new hairline cracks (subtly indicated by the stress lines in the drywall), your wait time must be extended. Listen for small pops and groans from the framing.

STEP SIX

Repeat Until Level
The adjustment process is a cycle of action and observation. After the 7-day wait (Step 4) and positive observation (Step 5), you return to the basement to repeat the 1/4 turn (Step 3).
 
This final graphic shows the culmination. The laser reference line, which was originally below the mark, now aligns perfectly with the target measurement on the tape. The task is only complete when your laser measurements confirm the structural beam has returned to its designed elevation.
What is a telepost?

WHAT IS A TELEPOST?

A telepost is the adjustable steel column extending from the concrete floor to the underside of the main floor beam.

Teleposts transfer the weight load from the main floor to the foundation pad. There may be multiple teleports installed. It will depend on the size of the home, and the span of structural beams.

Placing teleposts in engineered locations to pick up the weight of the floor(s) above.

If you have teleposts installed, they can be carefully adjusted to help level upper floors if your foundation has sunk.

Key Functions of a Basement Telepost:

Supporting Load-Bearing Beams

Teleposts, placed under load-bearing beams, help transfer the weight from the upper floors. Down to the foundation. This provides crucial support to prevent structural movement or sagging.

Adjusting for Structural Stability

Most teleposts are adjustable. Allowing them to be raised or lowered to ensure proper alignment as a house settles over time. This helps maintain a stable and level floor structure.

Reducing Floor Deflection

Teleposts prevent floor deflection. Which is the bending or sagging of floors under heavy loads. By supporting the beams, teleposts help maintain the level of the floor. Preventing cracks in walls, ceilings, or floors above. Adjustments also help doors and windows from becoming hard to open.

Supporting Remodeling or Repairs

Teleposts can be temporarily installed during renovation or repair projects. When and where extra support is needed. Such as removing or altering a wall or replacing parts of the structural beam.

What Does Adjusting A Telepost Do?

Adjusting the telepost in your home can:

  • Level floors on the upper levels
  • Prevent floor squeaks
  • Help unstick doors and windows
  • Minimize cracks in walls

CAUTION

Never adjust support teleposts by large amounts. Adjust them by small amounts at a time. , especially on newer homes.

Adjusting a telepost too quickly or improperly may cause large cracks to appear in walls. Flooring also may become loose or squeaky.

A general rule of thumb is to do adjustments no more than one-half a turn at a time

What is a telepost?
Basement Slab Replacement

The image shows 4 visible teleposts, marked with a red arrow. Depending on the size of your home, you may have several teleports or one or possibly none. But if you have purchased a home that has a finished basement, the telepost may be hidden inside a finished wall or a decorative covering such as wood or drywall.

LEGAL DISCLAIMER & LIMITATION OF LIABILITY

1. Educational and Informational Purposes Only
 
The telepost (jack post) adjustment guide, instructions, graphics, diagrams, and related content provided on this website (collectively, the “Content”) are published strictly for general educational and informational purposes only. The Content does not constitute professional engineering, structural consulting, or trade advice. Every building structure, foundation condition, soil composition, and load distribution is unique, and general instructions cannot account for individual site conditions.
 
2. Assumption of Risk
 
Adjusting structural support components, including teleposts, involves inherent hazards, including but not limited to structural collapse, wall and ceiling cracking, utility line damage (plumbing, gas, electrical), mechanical failure, personal injury, or death. By using or referring to the Content on this website, you explicitly assume all risks, known and unknown, associated with performing any telepost adjustments or related structural modifications.
 
3. No Professional or Contractual Relationship
 
Accessing, reading, or utilizing the Content on this website does not create a contractor-client, engineering-client, or any other professional or fiduciary relationship between you and AAA Solid Foundations. AAA Solid Foundations does not perform, supervise, or inspect self-administered adjustments or DIY structural work.
 
4. Complete Release and Absolution of Liability
 
To the fullest extent permitted by applicable law, AAA Solid Foundations, its owners, directors, officers, employees, agents, representatives, and affiliates (the “Released Parties”) shall NOT be held liable or legally responsible for any direct, indirect, incidental, consequential, special, punitive, or exemplary damages, losses, injuries, or claims of any kind resulting from:
 
Any reliance on, use of, or misuse of the Content or instructions provided on this website;
 
Any errors, omissions, inaccuracies, or incomplete instructions contained within the Content;
 
Any property damage, structural instability, cosmetic damage, or bodily injury resulting from self-performed telepost adjustments or attempts to follow the guide.
 
You hereby release, waive, discharge, and covenant not to sue AAA Solid Foundations or the Released Parties from any and all claims, demands, liabilities, causes of action, or expenses (including legal fees) arising out of or related to your use of or reliance on the Content.
 
5. Recommendation for Professional Evaluation
 
Structural modifications should only be evaluated and performed by qualified, licensed, and insured structural professionals. If you suspect structural settling, foundation failure, or telepost instability, you are strongly advised to consult directly with a professional structural engineer or a licensed foundation contractor before undertaking any adjustments.
 
By accessing or utilizing the telepost adjustment guide on this website, you acknowledge that you have read, understood, and agreed to the terms of this Legal Disclaimer.

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PO Box 37052
Regina, SK
S4S 7K3

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