Why Do Stairs Get Loose? Common Problems That Weaken Your Staircase Over Time

A well-built staircase should feel sturdy for decades — but over time, everyday wear and tear can cause parts to loosen.

Stairs, whether old or newly built, are the heart of every home – but even the strongest ones can develop issues over time. From squeak and wobbles to loose treads or handrails, these problems can appear sooner than expected. Understanding why you might get loose stairs is the first step to keeping them safe, sturdy, and long-lasting.

Here are some of the most common reasons stairs start to feel wobbly or creaky:

1. Loose Fixings – Screws and nails can gradually work themselves out with repeated foot traffic and vibration, especially on heavily used staircases.
2. Timber Movement – Wood naturally expands and contracts with changes in humidity and temperature. This seasonal movement can weaken joints or create small gaps.
3. Worn Joints – Traditional joinery, like mortise and tenon or housed stringers, can loosen if the adhesive breaks down or if the wood around the joint wears away.
4. Settling of the Building – Older homes may shift slightly over the years, putting unexpected stress on the staircase structure.
5. Previous Repairs or Modifications – Poor-quality repairs, such as replacing treads or spindles without securing them properly, can also make the stairs unstable.

If your stairs start to creak, wobble, or move underfoot, it is best to have them inspected early.

Some modifications you can do yourself, or call a professional near you. Start with inspecting gaps at the wall, between treads and risers, or where stairs are connected to the floor. By closing gaps that will limit movement will leave your stairs working just like new. Small fixes now can prevent bigger, more costly repairs later.

Have a question or ready to take the next step in your staircase planning? Visit our Stockist page to find trusted suppliers and start your journey toward a staircase you’ll love for years to come.