Has your favourite table lamp stopped working? Perhaps you've picked up a vintage lamp that needs rewiring, or you've noticed that the cable or lampholder on an older fitting is showing its age.
The good news is that many lamps can be repaired. Often, the main structure is perfectly serviceable and it's the electrical components that need attention.
At Lampfix, we supply specialist parts for lighting repairs and restoration, including lampholders, cable, switches and the smaller fittings that hold everything together.
This guide explains what to check, which parts you may need and how to decide whether a repair is something you can safely undertake yourself or should leave to a professional.
1. Start by Identifying the Problem
Before buying replacement parts, try to establish what isn't working.
Always unplug a portable lamp before inspecting it. Allow the bulb to cool, and don't attempt to work on the fitting while it's connected to the electricity supply.
There are a few straightforward things you can check:
The bulb: Is it the correct type and wattage for the fitting? Try a known-working, compatible bulb.
The cable: Look for cracks, splits, crushing, discolouration or exposed conductors.
The plug: Check for visible damage, signs of overheating or a loose cable entry.
The switch: Does it operate normally, or does it feel broken, loose or unusually stiff?
The lampholder: Look for visible cracks, discolouration, burning or other damage, without touching or attempting to clean its internal electrical contacts.
A faulty plug fuse can also prevent a lamp from working. A 3A fuse is common in UK table lamps, but the correct fuse must be selected according to the appliance's requirements.
If a fuse repeatedly blows, don't keep replacing it. The lamp may have an electrical fault that needs investigating.
If you find damaged wiring, signs of overheating, burning, buzzing or exposed electrical contacts, stop using the lamp and have it assessed by a competent person.
2. Which Lamp Parts Might Need Replacing?
Many lighting repairs involve replacing one or more fairly standard components.
Lampholders
Lampholders can become cracked, brittle, worn or damaged by heat over time.
Common bulb fittings include:
BC/B22 – standard bayonet cap
ES/E27 – Edison screw
SES/E14 – small Edison screw
SBC/B15 – small bayonet cap
But identifying the bulb fitting is only the beginning.
You may also need to check the lampholder's mounting arrangement, dimensions, shade-ring fitting, temperature rating and electrical connections.
Two lampholders that accept the same bulb aren't necessarily interchangeable.
Cable and Flex
Old cable is another common reason for rewiring a lamp.
If the insulation has become brittle, cracked, damaged or discoloured, it may need replacing.
Lighting cable comes in different conductor sizes, core configurations and constructions.
For example, a fitting may need 2-core or 3-core flex, depending on its electrical design and earthing requirements.
We stock standard PVC flex, decorative braided cable and various specialist options.
Not sure which cable size or number of cores you need? Read our guide to choosing the right cable for a light fitting.
Switches
A faulty switch can sometimes be replaced without changing the appearance of the whole lamp.
Depending on the original construction, the switch might be:
Built into the lampholder
Fitted inline on the cable
A foot switch
Mounted in the base or body of the lamp
The replacement must be electrically suitable and physically compatible with the fitting.
Changing to a different type of switch isn't always straightforward, so check the connections, dimensions and mounting arrangement before ordering.
Plugs
A damaged plug may also require replacement.
UK plugs should be of a suitable approved type, with correctly sleeved live and neutral pins, secure cable anchorage and an appropriately rated fuse.
Always check the original appliance requirements rather than assuming the same fuse is suitable for every lamp.
Small Parts That Make a Difference
Sometimes the difficult part of a lamp repair isn't the lampholder or cable. It's finding the small component that secures or protects it.
Examples include:
Cord grips – help prevent pulling on the cable from straining the electrical connections.
Grommets and bushes – protect cable where it passes through suitable openings.
Locknuts and threaded tubes – used to secure and assemble various lamp components.
Earth tags – provide a connection point in suitable earthing arrangements.
These components may be small, but they can be important to the mechanical and electrical safety of the finished fitting.
3. Does a Metal Lamp Need an Earth?
This is one of the most important things to establish before rewiring a light fitting.
Electrical fittings are designed with different methods of protection against electric shock.
Class I fittings use protective earthing. Accessible conductive parts that require earthing must be properly connected to the protective earth.
Class II fittings use double or reinforced insulation and are designed not to require a protective earth. They are normally identified by the double-square symbol.
A lamp having a metal body doesn't automatically tell you which class it belongs to. Equally, an old lamp having only two wires doesn't prove that it was correctly designed as Class II.
The original construction must be assessed, particularly when working with vintage, imported or previously modified fittings.
Don't simply remove an earth conductor or assume that ordinary single-insulated wire is suitable for any internal position.
If you're uncertain about the earthing or insulation arrangement, this is a good reason to have the lamp professionally assessed.
4. Can You Rewire a Lamp Yourself?
That depends on your experience, the construction of the lamp and whether you can carry out the work safely.
Identifying a bulb, checking visible damage and finding compatible replacement components are quite different from dismantling and rewiring electrical parts.
Electrical repair work requires suitable knowledge of cable selection, connections, insulation, earthing, strain relief and testing.
Someone competent in this work will normally use tools such as screwdrivers, wire strippers, cable cutters and suitable electrical test equipment.
For more complicated fittings, specialist workshop tools may also be needed.
However, modifying metalwork, improvising cable joints or altering the electrical design of a light fitting should not be treated as routine DIY work.
Don't use insulating tape as a substitute for a proper cable repair, or tin flexible wire ends with solder unless the particular terminal arrangement is specifically designed to accept them.
If you cannot confidently establish the correct repair method and verify the finished result, use a competent repairer.
5. Electrical Testing After a Repair
After electrical components have been replaced, the fitting needs more than a visual check.
Appropriate inspection and testing by a competent person should establish that the completed lamp is electrically safe before it goes back into use.
Depending on its construction, this may involve:
Checking the connections and condition of the assembly.
Verifying protective earth continuity where required.
Checking insulation integrity.
Confirming correct polarity and switching arrangements.
Checking the fitting's electrical operation.
The precise tests and acceptance criteria depend on the type and construction of the fitting.
Simply plugging a repaired lamp in and seeing it light up does not establish that it's safe.
6. When Is Professional Lamp Repair the Better Option?
Some lamps are particularly worth having repaired properly.
Perhaps it's a family heirloom, a well-made brass lamp, a vintage piece or something that would be difficult to replace.
You may also be dealing with an unusual construction, old wiring, unclear earthing arrangements or a fault that isn't immediately obvious.
For these situations, professional assessment and repair are often the more sensible route.
Lampfix offers a Lighting Rewiring & Restoration Service for suitable fittings.
Our Stotfold workshop works on table lamps, floor lamps, chandeliers and other lighting, using replacement components appropriate to the construction and character of each piece.
Where practical, we preserve original features rather than replacing parts unnecessarily.
You can book the service online, then arrange to send or bring the fitting to us. Drop-off and collection are by appointment.
Once we've inspected it, we'll agree the work with you before proceeding. Any additional work or material changes are discussed first, and the completed fitting undergoes the appropriate electrical safety checks.
If using our workshop isn't convenient, we may also be able to suggest an independent repairer closer to you.
Find out about our Lamp Rewiring & Restoration Service
7. Need Help Finding the Right Replacement Part?
You don't necessarily need to book a repair service to benefit from Lampfix's specialist product knowledge.
If you already know which component needs replacing, we can help you identify a suitable replacement from our range.
The most useful information to send us is:
A photograph of the complete lamp.
A clear close-up of the component you need, taken without unsafe dismantling.
Any visible markings, sizes or existing product references.
A short explanation of what's damaged or needs replacing.
If you're a professional restorer or lighting workshop, you're welcome to send us an unusual parts enquiry as well.
We can help with product identification and compatibility information, although the safety of the complete repair remains the responsibility of the person undertaking and testing the work.
You can order individual components or mixed quantities through our website.
If you're uncertain about returns, particularly for cut-to-length cable or specially ordered components, check our Terms & Conditions before ordering.
Is Your Lamp Worth Repairing?
Not every lamp needs to be restored.
For an inexpensive, mass-produced lamp with extensive damage, replacing it may be more practical.
But a well-made light fitting can often have many more years of useful life once worn electrical components are correctly replaced.
And if the lamp has sentimental value, an unusual design or good-quality materials, there may be every reason to keep it.
At Lampfix, we help people find the specialist components needed to make, repair and keep good lighting working.
Whether you're a lighting professional looking for an unusual part or the owner of a favourite lamp that needs attention, we're happy to help you work out the next step.
Contact: sales@lampfix.co.uk
Telephone: 01462 731 173