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Repair your fridge & freezer.

Cooling, drainage or frost faults across both compartments — diagnosed in one visit.

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✓ Updated Mar 2026✓ Free quotes✓ Vetted pros
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Blocked Defrost Drain

Causes water to pool at the bottom of the fridge; usually solved by clearing the small "duckbill" valve at the rear.

Faulty Door Seals

Allows warm air in, causing the compressor to overwork and ice to build up rapidly.

Failed Start Relay

Usually identified by a "clicking" sound followed by the compressor failing to kick in.

Evaporator Fan Failure

The freezer stays cold, but the fridge section becomes warm as air cannot be circulated.

Costs & timeline

Know what it costs. Know when it ends.

Indicative UK ranges and what affects price.

Cost range

By job type

Inc. VAT · 2026
Source: NMT quotes
Call-out / Diagnostic FeeOften deducted from the final repair bill if you proceed.
£65–£125
Labour (per hour)Higher rates apply in London and for premium brands.
£50–£95/hr
Thermostat / Sensor ReplacementIncludes part and labour for standard models.
£80–£160
Fan Motor / Start RelayCommon mechanical fixes for cooling issues.
£90–£190
Door Seal ReplacementCost varies significantly by brand and seal type.
£70–£150
Compressor ReplacementMajor work involving F-gas recovery and brazing.
£350–£650
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Quote spread is typically ± 18% — always get 3 quotes.

At a glance

The Appliance Repair briefing.

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Fridge and freezer repairs infographic
Video guide

Appliance Repair explained

Modern UK units, especially integrated models or American-style fridge-freezers, feature complex electronics and sensors that require specialist diagnostic tools. Hiring a qualified engineer ensures your appliance is repaired safely, remains energy-efficient, and complies with strict environmental regulations regarding refrigerant gases.

What Does the Work Involve?

  • Diagnostic Assessment: Testing the electrical supply, control boards, and internal sensors to pinpoint the failure.
  • Component Testing: Checking the continuity and function of the thermostat, defrost heater, evaporator fans, and condenser coils.
  • Seals and Airflow: Inspecting door gaskets for perishing, clearing blocked drainage channels, and ensuring internal air vents are unobstructed.
  • System Pressure Checks: Using gauges to check the refrigerant circuit and detecting leaks within the sealed system.
  • Part Replacement: Swapping out faulty components such as start relays, fan motors, or control modules on-site.
  • Gas Work: Recovering old refrigerant and recharging the system (this must only be performed by an F-gas certified engineer).

Typical Costs

Item Low £ High £ Notes
Call-out / Diagnostic Fee £65 £125 Often deducted from the final repair bill if you proceed.
Labour (per hour) £50 £95 Higher rates apply in London and for premium brands.
Thermostat / Sensor Replacement £80 £160 Includes part and labour for standard models.
Fan Motor / Start Relay £90 £190 Common mechanical fixes for cooling issues.
Door Seal Replacement £70 £150 Cost varies significantly by brand and seal type.
Compressor Replacement £350 £650+ Major work involving F-gas recovery and brazing.
Appliance Disposal (WEEE) £30 £75 Environmentally compliant removal of old units.

Prices are influenced heavily by the appliance brand; parts for premium manufacturers like Miele, Sub-Zero, or Samsung often carry a significant markup. Integrated appliances also incur higher labour costs as the unit must be carefully extracted from kitchen cabinetry without damaging the decor.

Pro Tip: Always check if your appliance is still under manufacturer warranty or covered by your home insurance "emergency cover" before booking an independent engineer.

How Long Does It Take?

  • Diagnostics: 30 to 60 minutes to identify the fault.
  • Minor Repairs: 1 to 2 hours for thermostats, sensors, or fan motors if the parts are held on the van.
  • Major Repairs: 3 to 5 hours for compressor replacements or complex electrical loom repairs.
  • Parts Ordering: If a specific PCB or bespoke seal is required, expect a lead time of 3 to 7 working days for the part to arrive.

DIY or Professional?

Homeowners can safely tackle basic maintenance such as cleaning condenser coils, vacuuming dust from the rear of the unit, and clearing blocked drain holes with a dedicated cleaning tool. However, any fault involving the electrical control system or the refrigerant gas must be handled by a professional.

In the UK, it is a legal requirement for anyone handling refrigerant gases to be F-gas certified. Furthermore, as fridges are high-draw electrical appliances, improper repairs can lead to fire risks or electrical shocks, making professional intervention the only sensible choice for internal faults.

Choosing the Right Tradesperson

  • Check Certifications: Ensure the engineer is F-gas registered if the fault involves cooling gases.
  • Brand Specialism: Ask if they have specific experience with your brand, especially for high-tech smart fridges.
  • Insurance: Verify they hold valid public liability insurance (minimum £1m).
  • Warranty: Look for a minimum 6-12 month guarantee on both the parts fitted and the labour provided.

Questions to ask:

  • "Is the call-out fee fixed, and does it include the first hour of labour?"
  • "Are you F-gas certified to work on the sealed cooling system?"
  • "Do you use genuine manufacturer parts or high-quality pattern parts?"
  • "What is your 'beyond economical repair' (BER) policy?"

UK Regulations

  • F-Gas Regulations 2015: Governs the containment, use, and recovery of fluorinated greenhouse gases used in refrigeration.
  • WEEE Directive: The Waste Electrical and Electronic Equipment regulations dictate how old fridges must be disposed of to prevent environmental damage.
  • Part P (Building Regulations): While appliance repair isn't usually notifyable, any new circuit installation for a fridge requires compliance with electrical safety standards.
  • BS 7671: The UK standard for electrical installations which all appliance engineers should adhere to when testing.

Common Problems

  • Blocked Defrost Drain: Causes water to pool at the bottom of the fridge; usually solved by clearing the small "duckbill" valve at the rear.
  • Faulty Door Seals: Allows warm air in, causing the compressor to overwork and ice to build up rapidly.
  • Failed Start Relay: Usually identified by a "clicking" sound followed by the compressor failing to kick in.
  • Evaporator Fan Failure: The freezer stays cold, but the fridge section becomes warm as air cannot be circulated.
  • Dirty Condenser Coils: Dust buildup prevents heat dissipation, leading to poor cooling and high energy bills.

Frequently Asked Questions

Is it worth repairing a 10-year-old fridge?

Generally, if the repair cost exceeds 50% of the price of a new, energy-efficient model, replacement is better. Modern units are significantly cheaper to run, which can offset the purchase price over time.

Why is my fridge making a loud buzzing or humming noise?

This is usually a sign of a failing compressor or a faulty evaporator fan. If the noise stops when you open the door, it is likely the fan; if it continues, it is likely the compressor or condenser fan.

Can a fridge be repaired if it has a gas leak?

Yes, but it is expensive. An F-gas engineer must find the leak, seal it (often involving brazing), vacuum the system, and recharge it with the correct weight of refrigerant.

Why is ice building up on the back wall of my fridge?

This often indicates a faulty thermostat or a damaged door seal. If the fridge is "auto-defrost," the defrost heater or sensor may have failed, preventing the melting cycle.

How much does it cost to dispose of an old fridge-freezer?

Most councils charge between £20 and £50 for a bulky waste collection. Private tradespeople may charge slightly more (£40–£75) but will often handle the heavy lifting from inside your property.

Do I need to defrost my freezer before the engineer arrives?

It is best to ask the engineer. For many cooling issues, they need to see the ice pattern to diagnose the fault. However, if they need to replace a fan behind the back panel, a 24-hour defrost may be required first.

This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.

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