Signs Your Commercial Electrical System Needs Immediate Attention (And What to Do Next)

Are you concerned about the safety of the electrical installations at your business? You’re in the right place. We’re here to help you spot the warning signs, as well as advise you on how to stop things going wrong in the first place.

The reality is that electrical failures and emergency situations don’t tend to happen out of the blue. They’re caused by small things getting overlooked and system maintenance being neglected over time, which ultimately can lead to installations and equipment becoming unsafe and hazard prone.

Of course, prevention is always better than cure. By keeping on top of your electrical maintenance and planning regular servicing, you’ll catch issues early and ensure that your business is safe and compliant at all times. This will also help you avoid more costly repairs and business downtime due to complicated electrical faults in the workplace, as well as any disputes with your insurance company.

If, however, it’s too late for that, below is a list of six common faults our team often gets called out to fix. If you need any further guidance on a problem at your business, please contact us directly so that we can assess your situation and advise on if you need an emergency commercial electrician.

6 Warning Signs That Should Never Be Dismissed

1. Frequent tripping of circuits or RCDs

The problem:

Frequent tripping of circuits or RCDs signals an electrical fault which disrupts the power supply, potentially compromising safety and increasing fire risk. Repeated resets could make the issue worse.

Possible causes:
Overloaded circuits, faulty appliances, damaged wiring, moisture ingress, or earth faults which place strain on the system and trigger protective shutdowns.

2. Flickering or dimming lights

The problem:

Flickering or dimming lights indicate an unstable electrical supply, which can disrupt operations, reduce lighting quality and signal potential safety risks.

Possible causes:

Loose or faulty wiring, overloaded circuits, voltage fluctuations, failing light fittings, or issues with the main electrical supply causing inconsistent power delivery.

3. Burning smells or overheating equipment

The problem:

This is a serious one. Burning smells or overheating equipment could indicate a serious electrical fault, requiring immediate attention to protect your premises from the risk of fire.

Possible causes:

Faulty wiring, overloaded circuits, loose connections, failing components or poor ventilation causing heat build-up within electrical systems or equipment.

4. Sparks or exposed wiring

The problem:

Another urgent warning sign, sparks or exposed wiring present an immediate safety hazard, significantly increasing the risk of electric shock, fire and damage to equipment.

Possible causes:

Damaged insulation, loose connections, wear and tear, poor installation, or accidental damage exposing live wires and allowing electrical arcing to occur.

5. Buzzing sounds from electrical systems

The problem:

Buzzing sounds from electrical systems indicate abnormal current flow or loose components, signalling a potential fault that could lead to further complications if left unchecked.

Possible causes:

Loose connections, overloaded circuits, faulty breakers or transformers, or aging components causing vibrations and inconsistent electrical flow within the system.

6. Outdated or poorly maintained distribution boards

The problem:

If you notice that your distribution boards are starting to age, it’s worth getting them inspected as they can compromise electrical safety if they’re not designed for a modern load or have silently deteriorating components.

Possible causes:

Aging equipment, lack of regular inspections, worn or damaged parts, outdated safety standards, or modifications over time that have not been properly tested or maintained.

What You Need to Do Next

The above warning signs should never be ignored, and if you’re in any doubt about the safety of any installations or equipment at your business, it’s always best to contact a qualified electrician straightaway. They can advise you on how urgent the matter is and get it looked at for you before it turns into something more serious.

The Importance of Proactive Commercial Electrical Maintenance

As we mentioned at the start of this article, putting in place planned maintenance for your commercial electrical systems is the best way to stay compliant and keep your business and staff safe. By doing this, you catch faults early and avoid emergency callouts. You also reduce the risk of fire and improve the reliability and lifespan of your electrical infrastructure. It’s key to keep in mind as well that maintenance is cheaper than dealing with system failure.

And let’s not forget your EICR, a full inspection of all your electrical installations, which needs to be carried out regularly. Having an up-to-date satisfactory EICR ensures everything is operating safely and that your business is compliant with the BS7671 Electrical Wiring Regulations and the Electricity at Work Regulations 1989. We recommend that you plan routine checks around your EICR as best practice.

Choose Midland Fire for Expert Electrical Maintenance Services

We are a trusted NICEIC approved contractor with extensive experience in electrical installation, maintenance and inspections. Choosing Midland Fire will give you peace of mind that your commercial property and all your electrical installations and appliances are safe and fully compliant.

Our electrical services include:

• Emergency callouts and repairs
• Planned electrical maintenance
• EICR testing

We also offer a range of fire safety services and security services. Our friendly team is on hand to advise you and offer expert guidance on how to meet the safety and security needs of your business.

At Midland Fire WE PROTECT. Contact us today for your free consultation.

Your Burning Questions Answered

What should I do if the electrical systems at my business need immediate attention?
If you notice any of the warning signs we’ve mentioned in this article, isolate affected areas if safe to do so, stop using any faulty equipment, and contact a qualified electrician urgently. We strongly advise that you avoid DIY fixes during this time.

At Midland Fire, we offer an emergency repairs service, available 24/7, and a member of our team can be with you as soon as possible to make things safe again and keep your business up and running. We’ll document the issue, carry out repairs and finish by testing and certifying to maintain safety and compliance.

Do I need a NICEIC approved contractor?
Yes, it’s strongly recommended. Using an NICEIC approved contractor ensures installations and inspections are carried out by a qualified professional who meets industry-recognised standards. It’s the best way to guarantee your electrical systems are reliable and fully compliant with current regulations.

How often should a commercial EICR be done?
That depends on your electrical installation. Typically, an EICR should be carried out every five years (or sooner if the building’s use or occupancy changes). High-risk environments like industrial sites may need more frequent checks. Check out our website for more information.

How often should commercial PAT testing be done?
There are no legal requirements for how often PAT testing should be carried out, but it’s recommended that you get your appliances inspected at least once a year, or more for high-risk equipment.