Coil Balance Repair & Replacement for Sash Windows
If your sash window is dropping, sticking, slamming shut, or feeling unusually heavy,
the internal balance system may no longer be operating as intended. Faulty balance
mechanisms are one of the most common causes of sash window problems in modern properties.
Our professional coil balance repair and replacement service restores
smooth, controlled movement while improving safety, comfort, and reliability.
Whether your window no longer stays open or has become difficult to use, addressing the
issue early can prevent further damage to the sash, frame, and locking components.
What Is a Coil Balance?
A coil balance is a spring-based counterweight system used in many modern
sash windows. Unlike traditional sash cords and weights, coil balances use compact steel
springs housed within the window frame to support the sash.
When correctly matched to the sash weight, a coil balance allows the window to open
smoothly, remain at the chosen height, and close securely without resistance.
These systems are commonly found in uPVC, aluminium, and some timber sash windows.
Over time, springs can lose tension, components can wear, or parts can fail completely,
leading to operational problems that require professional attention.
Common Coil Balance Problems
Balance systems are under constant tension and movement, which means wear is inevitable.
The most common signs of a failing balance mechanism include:
- Sash windows that drop immediately after being opened
- Windows that feel heavy or require force to lift
- Sashes that refuse to stay open at any height
- Sudden slamming when closing the window
- Uneven movement where one side rises faster than the other
These symptoms often indicate loss of spring tension, damaged shoes, or mismatched
balance components. Left unresolved, these issues can worsen and lead to further
window damage.
Why Coil Balance Repair Is Important
A faulty balance system places unnecessary strain on the sash window.
Excess weight can damage seals, distort frames, and cause premature failure of locks
and hinges. Prompt coil balance repair helps restore correct function
before these secondary problems develop.
Well-balanced windows are also significantly safer. A sash that drops suddenly can
cause injury or damage, particularly in homes with children or pets.
Ensuring the balance system operates correctly reduces these risks.
Coil Balance Repair vs Replacement
Not every balance issue requires a full replacement. In some cases, a system can be
repaired by adjusting tension, reseating components, or replacing minor parts.
This approach can be suitable when the spring itself remains in good condition.
However, if the spring has snapped, the mechanism is worn, or the system is incorrectly
rated for the sash weight, coil balance replacement is the safest and
most durable solution. Replacing the system ensures correct tension and long-term reliability.
We always assess the condition of the existing components before recommending the most
appropriate option.
Our Coil Balance Repair Process
Every job begins with a detailed inspection. This includes identifying the type of
balance system installed, assessing sash weight, and checking the overall condition
of the window frame and channels.
Once the correct solution is confirmed, the balance system is repaired or replaced
using components matched precisely to the sash. After installation, the window is
tested through its full range of movement to ensure smooth, controlled operation.
Final adjustments are made to confirm alignment, stability, and safe closing.
Types of Coil Balances We Work With
There are several variations of balance mechanisms used across different window systems.
Our technicians regularly work with:
- Spring coil balance systems with tensioned steel springs
- Pivot shoes and carriers
- Side-mounted and concealed balance assemblies
- Matched balance pairs for even sash support
Correct identification is essential to ensure the replacement system performs as intended.
Benefits of Professional Coil Balance Replacement
Replacing worn or failed components restores the window to its original performance.
Key benefits include:
- Smooth, effortless sash movement
- Improved safety and control
- Reduced strain on locks and seals
- Better alignment and weather sealing
- Extended lifespan of the window system
Professional installation ensures the system is correctly rated and securely fitted.
Who Our Coil Balance Repair Service Is For
Our service is suitable for a wide range of clients, including:
- Homeowners experiencing sash window issues
- Landlords maintaining rental properties
- Property managers and letting agents
- Commercial buildings with sash window installations
We understand the importance of reliability and minimal disruption, particularly in
occupied properties.
Areas We Cover
We provide professional sash window balance services across the UK.
Appointments are arranged at convenient times, and local availability can be confirmed
on request.
Our goal is to deliver consistent workmanship and dependable results wherever we work.
Get a Quote for Coil Balance Repair
The cost of repair or replacement depends on several factors, including the balance type,
window size, sash weight, and access requirements. Clear guidance and transparent pricing
are provided before any work begins.
For additional guidance on window safety and standards, see
FENSA building regulations
.
Contact us today to arrange your coil balance repair and restore smooth,
safe sash window operation with confidence.
