How To Fix A Sinking Office Chair? (3 Solid Ways)

This is one of the typical office chair problems, and it is really frustrating. Every one of us has experienced it at least once in our lives. It happens due to faulty or broken spring that gives the chair a reclining feature. If you don’t want to spend a lot of money buying a new chair, let’s see how to fix a sinking office chair.

Why Doesn’t My Office Chair Stay Up?

Almost all types of chairs with height adjustability feature comes with a pneumatic cylinder. When you pull the lever underneath your seat while sitting on it, the lever pushes the gas inside its chamber. It decreases the height of the chair, and when you take off your weight, it goes back up.

That is how that height adjustment feature works, and it doesn’t go very well due to low-quality equipment or years of usage. This is a common phenomenon, and every one of us could relate to the situation at least once in our life.

You understand that the cylinder has seals so that the gas can’t leak, and the chair can go up or down. Due to a faulty lever mechanism or leak in the seals can cause your chair sink or permanently stay down. Now, let’s see how to fix an office chair that won’t stay up using different methods, and you can choose any of them as you see convenient.

How to Fix A Sinking Office Chair: 3 Methods?

Researching on the internet, we could find 3 different and effective solutions to a sinking office chair problem. Please feel free to share your thoughts and other methods than ours if you know any.


Method 1: Replacing the Cylinder

This is the most professional and permanent solution to the problem because you won’t have to compromise the feature. It might seem a complex task and a job for professionals but trust us. You can do it yourself following the steps below in no time.

Step 1: Place your chair seat on a firm surface upside down and place some protection like cloth or paper the protect the seat and the surface.

Step 2: Now, take a hammer and hit gently close to the joint of the cylinder and wheel structure. You have to hit all five legs equally, and eventually, it will come off.

Step 3: Spray some loosening oil to the joint of the cylinder and the seat so that it easily comes off.

Step 4: You can use a pipe wrench and try to rotate the metal portion of the cylinder. With a moderate force, you will be able to rotate it, and the cylinder will come off.

Step 5: Take the new replacement cylinder and place it on the specific location and follow the instructions that come with it.

That is how easy it is to replace a bad cylinder. However, if you don’t want to spend more, you can follow the other two quick DIY fixes.

Method 2: Using PVC to Fix

This is a temporary fix, and you won’t be able to adjust the height anymore. Setting the height once, you don’t change it much. So, this can be a convenient and affordable solution for many. Getting PVC pipes matching the diameter of your chair’s cylinder is not a big deal. Get it from your local store and follow the steps below.

Step 1: Firstly, measure the height that you feel comfortable to sit on and note it.

Step 2: Take a saw and cut through the piece you bought from your local plumbing supplying store. When you have cut according to the noted length, make another cut at the length size. In the end, you will see a slit so that you can put the PVC pipe on the cylinder.

Step 3: Lift your seat and snap the pipe onto the chair’s cylinder. Releasing the chair, you will have a fixed but your desired height.

The benefit of this method is that you can make small errors in cutting the PVC pieces and still fix it. If the cut length is shorter, cut another piece. On the other hand, if it is larger, cut some more and it will be perfect.

Method 3: Using Hose Clamp and Duct Tape to Fix

This is another easy solution, like the previous one, but not as effective as the PVC pipe. If you don’t have the time to get PVC pipes or have the right tools to cut it, you can go for this method.

Step 1: Firstly, lift the chair seat to the maximum height and wrap the whole metal part with duct tape. This will ensure a better grip on the hose clamp.

Step2: Now, put the clamp at your desired height and tighten it with a screwdriver.

Step3: Finally, tighten the clamp as far as it is possible, and you can out another clamp if you want. As a result, it will be able to take more load. Finally, sit on the chair and test its capability.

Frequently Asked Questions

What is a tilt lock in a chair?

Tilt lock in a chair enables or disables the tilting feature of a chair back. Locking the tilt function, you will have an upright sitting position to type for some time. On the other hand, unlocking the function will let you relax in a reclining position.

How do you adjust a chair back?

To adjust the back, you will have to sit on a chair comfortably and push a bit back, making approximately 110-degrees and lock the position. This way, your natural body shape will be maintained, and there will be no back pain even after long hours of sitting.

Why does sitting in a car hurt my back?

It usually won’t hurt your back, but sitting for too long without having any break will cause serious pain. Sitting in one position for long makes the muscles stiff and introduces spasm.

Between what angles should you ideally set your chair backrest for maximum comfort?

If you can keep the chair’s backrest close to 110-degrees, you will probably get the maximum comfort. This way, you can work longer and have no back pain at the end of the day.


All we want to say is that you don’t have to throw away every single time you face a problem with it. Keep an eye on our website so that you can fix small things and keep using your favorite chair. For how to fix a sinking office chair, we like the PVC method most, and it is an effective and the most affordable solution.

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