Can I Convert a Spring Roller Blind to Chain Operated – and Vice Versa?

If the spring mechanism in an existing roller blind has stopped working, you don't necessarily need to replace the whole blind.

In many cases, a spring-operated roller blind can be converted to chain operation, often while keeping the existing fabric and roller tube.

It is also possible to convert some chain-operated roller blinds to spring operation if you would prefer a cordless blind.

So which option is best, what parts need changing, and when does a simple conversion start becoming more expensive than the blind is worth repairing?

Can I Convert a Spring Roller Blind to Chain Operated?

Yes. In many cases, the conversion is relatively straightforward.

If the existing roller tube is suitable, the old spring mechanism can be removed and replaced with a compatible chain-operated roller blind mechanism, often called a sidewinder.

Older roller blinds shouldn't automatically be written off either. Replacement mechanisms are still available for commonly used smaller roller tubes, including 25mm and 28mm tubes.

This means an older blind with perfectly good fabric may be given a new lease of life without replacing the complete blind.

Do I Need to Replace the Roller Blind Brackets?

Usually, yes.

The brackets used with the original spring mechanism will not normally be suitable for the new chain-operated mechanism.

However, this doesn't necessarily make the conversion difficult.

Replacement spring and chain mechanisms are commonly supplied as sets including the appropriate brackets, and the new brackets can usually be fitted in approximately the same position as the originals.

Depending on the system, the mechanism and idle end are fitted into the existing roller tube and the blind is then installed onto its new brackets.

Do I Need to Cut the Blind or Roller Tube?

Usually, no.

For a straightforward conversion where the existing tube is being retained, the width of the fabric and roller tube normally remain unchanged.

There should therefore be no need to cut down the fabric or shorten the roller tube simply because you are changing from spring to chain operation.

This makes conversion a particularly useful option when the existing blind fabric is still in good condition.

Why Convert a Spring Roller Blind to Chain Operation?

One of the most common reasons is simply that an older spring mechanism has failed.

Replacement springs for some older systems can be difficult to obtain. Rather than replacing an otherwise serviceable blind, fitting a modern chain-operated mechanism can provide a practical alternative.

Chain operation also gives you greater control when raising and lowering the blind.

In our experience, chain-operated mechanisms can also be less troublesome because there are no spring-tension adjustments to worry about.

Typical spring-related problems can include:

• A blind that will not stay in position

• A blind that slowly drops

• Insufficient spring tension

• Too much spring tension

• A blind that will not fully retract

• Difficulty obtaining a replacement for an older spring mechanism

Changing to chain operation removes many of these spring-tension-related issues.

Are Spring Roller Blinds Still a Good Choice?

Absolutely.

Spring-operated roller blinds have one significant advantage: they are cordless.

There is no operating chain hanging alongside the blind, giving them a particularly clean and uncluttered appearance.

Removing the need for a looped operating chain can also have advantages from a child-safety point of view.

For a normal domestic roller blind, both spring and chain operation can work very well. The choice is often down to personal preference rather than one system being universally better than the other.

Are Chain Operation Blinds Better for Larger Roller Blinds?

For many standard domestic roller blinds, either system is suitable.

As blinds become larger or heavier, however, chain operation can offer greater control and may be the more practical solution.

Larger roller blinds can also use larger-diameter tubes and stronger spring mechanisms, so spring operation isn't necessarily limited to small blinds.

The important question is how much needs replacing.

If repairing an older spring blind means replacing the spring, roller tube and possibly the blind's back bar or other components, the cost and work involved begin to increase.

At that point, it is worth asking a different question:

Is the blind still economical to repair, or would replacing it make more sense?

Can I Convert a Chain Roller Blind to Spring Operated?

Yes, this can also be possible.

If you would prefer a cordless blind, a compatible spring mechanism can replace the chain-operated mechanism.

Again, compatibility with the existing roller tube is important.

With some older systems, a suitable replacement spring may be difficult to obtain. One solution can be to replace the existing tube and upgrade the blind to a more modern system, such as a 32mm roller tube with a compatible spring mechanism.

This is perfectly possible, but replacing additional components increases the cost of the conversion.

For that reason, converting from chain to spring may sometimes involve a little more consideration than simply replacing a failed spring mechanism with a compatible chain-operated system.

Spring vs Chain Roller Blinds – Which Is Better?

There isn't a single answer because both systems have advantages.

Spring Operated	Chain Operated
Cordless operation	Greater control when positioning the blind
Clean, uncluttered appearance	Straightforward everyday operation
No operating chain loop	Good option for larger blinds
Good child-safety advantage	Replacement mechanisms widely available
Suitable for normal domestic blinds	No spring-tension adjustment
Springs can require tension adjustment	Chain requires appropriate child-safety measures

For someone whose existing spring mechanism has failed, conversion to chain operation can be an economical way of keeping an otherwise perfectly good blind.

For someone who particularly wants cordless operation, fitting a suitable spring mechanism remains an excellent option.

What About Converting a Roller Blind to Motorised Operation?

There is now a third option: motorisation.

Depending on the roller blind system, an existing manually operated blind may potentially be converted to a motorised system.

This provides cordless operation along with convenient powered control and can be particularly attractive for hard-to-reach blinds or where a cleaner appearance is wanted.

However, motorisation is in a different price bracket from a straightforward replacement spring or chain mechanism.

Whether it makes sense will therefore depend on the blind, the components required and how much you want to invest in upgrading an existing blind.

Before Ordering a Replacement Mechanism

The most important thing is to identify your existing roller blind tube and mechanism correctly.

Roller blind mechanisms are designed to fit particular tube diameters and profiles. A mechanism that looks similar isn't necessarily compatible with your tube.

Check the diameter and type of your existing tube before ordering replacement parts.

Common roller blind tube sizes include 25mm, 28mm and 32mm, although other sizes and systems are also available.

If you are unsure, comparing your existing components with replacement parts and measurements can help identify the correct system.

Don't Forget Child Safety

If you convert a cordless spring blind to chain operation, you are introducing an operating chain that wasn't previously present.

Looped blind chains can present a strangulation risk to young children and must be installed with the appropriate child-safety considerations.

Any required chain safety device should be correctly fitted and the blind installed and operated in accordance with the relevant child-safety requirements.

If maintaining cordless operation is particularly important to you, a spring or suitable motorised system may be the better choice.

Is Converting My Roller Blind Worth It?

If the fabric is still in good condition and the existing roller tube can be retained, converting a failed spring roller blind to chain operation can be a simple and economical repair.

You can usually retain the existing blind fabric and tube, replace the operating mechanism and brackets, and continue using the blind.

If the repair starts to require a new tube, spring, back bar and several other components, however, the economics begin to change.

That's when it becomes worth comparing the cost of repairing the existing blind with the cost of replacing it.

Our Verdict

Don't throw away a good roller blind simply because the operating mechanism has failed.

A failed spring doesn't necessarily mean a failed blind.

If a suitable replacement spring is unavailable, converting the existing blind to chain operation can often be straightforward, without cutting the fabric or changing the width of the blind.

If you prefer cordless operation, converting in the opposite direction may also be possible, while motorisation provides a further upgrade option where the additional cost is justified.

The key is identifying what you already have before deciding which replacement system offers the most practical and economical solution.Need help with another roller blind problem?

Need help with another roller blind problem?

Visit our Roller Blind Repairs & Guides section for help identifying common faults, finding possible causes and choosing the correct replacement parts.