Replace an intercom handset

Replace an intercom handset in Edinburgh

County: East Scotland

An intercom handset allows you to communicate with visitors at your front door safely and conveniently, often before letting them in. Over time, these handsets can wear out, suffer from damage, or become outdated as technology improves. Replacing an intercom handset ensures your system remains reliable, clear, and easy to use. You might want to replace your handset if you notice poor audio quality, buttons that don’t respond, or if the handset no longer matches a wider upgrade to your home’s security system. Whether your intercom is wired or part of a wireless system, a new handset can refresh your setup without the cost of replacing the whole intercom system.

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⭐ Introduction

You might want to replace your handset if you notice poor audio quality, buttons that don’t respond, or if the handset no longer matches a wider upgrade to your home’s security system. Whether your intercom is wired or part of a wireless system, a new handset can refresh your setup without the cost of replacing the whole intercom system.

🔧 What the job involves

Replacing an intercom handset is typically a straightforward electrician’s job. It involves removing the existing handset and disconnecting it from the wiring before fitting the replacement unit and testing it works correctly.

Most intercom systems have either simple low-voltage wire connections or screw terminals inside the handset unit. The process includes:

Safely isolating the intercom system to avoid electric shock or damage.
Removing the old handset from its wall mount or cradle.
Disconnecting wires carefully, noting their positions.
Connecting the new handset wires in the correct order.
Mounting the new handset securely.
Testing the handset’s audio, call, and door-release functions.
Tidying any loose cables.

If your system is more complex—such as video intercoms or systems integrated with door entry automation—additional checks or adjustments may be needed.

📝 Step-by-step from booking to completion

Enquiry
Contact a qualified electrician or specialist intercom installer. Provide details about your current intercom brand/model and what issues you’re experiencing.
Survey and Quote
The electrician will visit your home to inspect the existing handset and wiring. They’ll check compatibility with replacement parts and confirm the scope of work. You’ll receive a clear price quote.
Agree Date & Confirm
Once you’re happy with the quote, arrange a convenient date for the replacement works. Confirm any access or parking requirements.
Day of the Works
The electrician arrives with the replacement handset and tools. They isolate power to the intercom, remove the old handset, fit the new one, and test the system fully.
Completion and Demonstration
After installation, the electrician shows you how to use the new handset and confirms the system’s functions are restored. They’ll tidy up and dispose of the old parts.
Documentation
You receive any relevant paperwork, such as a work completion note or guarantee for parts and labour.

💷 Main costs to expect

Labour: Electrician’s hourly rate or fixed job charge, typically £50–£70 per hour.
Parts: Replacement handset units around £50 to £150 depending on model and quality.
Materials: Minor consumables like screws, mounting plates or wiring clips, usually under £10.
Disposal: Some installers include disposal of old handset, others may charge around £10.
Certification: Generally not required for intercoms, but your electrician may provide a basic safety check report with the job.

Example itemisation for a typical wired intercom handset replacement:

Item	Estimated Cost (£)
Labour (1.5 hours)	75
Replacement handset	90
Materials & consumables	8
Disposal of old handset	10
Total	£183

📊 What affects the price

Access to handset: Hard-to-reach wall mounts or concealed wiring can add time.
System complexity: Simple audio only vs. video intercom or smart system integration.
Compatibility: Harder to find or older handset models cost more.
Regulations and certification: Not usually relevant for intercoms but if part of a wider electrical upgrade, more checks might be needed.
Remedial works: Damaged wiring or mounting points may require extra repair.
Location: Labour rates vary across the UK, often higher in London and South East.
Urgency: Emergency or same-day replacements usually cost more.

⏱ How long does it take?

Straight swap of a compatible audio handset: About 1 to 1.5 hours.
Replacing a handset on a video or wireless intercom with integration: 2 to 3 hours, depending on setup and testing.
Additional wiring repairs or mounting modifications: Time can extend by 30 minutes to 1 hour or more.

In most cases, the replacement can be completed in a single visit without disruption to your household.

🏠 Can you DIY it?

If you’re comfortable with basic electrical tasks, replacing a simple intercom handset can be DIY-friendly—especially if it’s just unplugging or unscrewing a handset and swapping it for an identical model.

However, consider these points:

Intercoms typically run on low voltage but can carry mains-voltage connections if integrated with door entry or other systems, so safety is important.
Incorrect wiring can cause the handset to malfunction or damage the system.
Some systems require configuration or resetting after replacement.
If your intercom is part of a smart home or security system, professional knowledge is advisable.
UK Building Regulations require certain electrical work to be done or inspected by a qualified electrician (particularly under Part P), though replacing intercom handsets is usually minor.
Hiring a registered electrician ensures compliance, safety, and guarantees work quality.

💰 Typical UK price range

For a standard intercom handset replacement, expect to pay between £120 and £250 including VAT at 20%. This covers labour and parts.

More complex systems or locations with limited access may cost more, possibly up to £350. Always obtain a clear quote before proceeding.

✅ Handy tips before you start

Identify your intercom system type and model to ensure compatibility with replacement handsets.
Check your wiring layout or keep photos of current wiring connections to help the electrician.
Clear access to the handset and wiring points before the job day.
Ask about warranty periods on parts and work — a reputable electrician should guarantee their installation.
Keep all paperwork including receipts, guarantee documents, and work completion notes for future reference or if you sell your home.
Test the new handset thoroughly on the day of installation while the installer is present.
If you are upgrading your entire door entry system, discuss this early to ensure the handset replacement integrates well.
Consider future-proofing with a handset offering video or smartphone integration if you plan gradual upgrades.

Replacing your intercom handset is usually a quick, low-disruption job that can restore convenience and security to your home’s entry system. With the right preparation and a qualified electrician, it’s a straightforward way to keep your home communication safe and functioning well.

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