24 Hour Boiler Repair

Fast, reliable emergency boiler repairs available 24/7 across London.
Gas Safe registered engineers. Fixed fast, day or night.

24 Hour Boiler Repair

Fast, reliable emergency boiler repairs available 24/7 across London.

• About Us

Local 24/7 Boiler Repair Specialists in London

We are experienced boiler repair specialists providing 24-hour emergency boiler repairs for homeowners and landlords across London. Our Gas Safe engineers are fully qualified to diagnose and fix all boiler faults quickly and safely.

24/7 Emergency Boiler Repairs

Gas Safe Registered Engineers

All Boiler Brands Covered

Same-Day & Night Repairs

• Our Services

Our Emergency Boiler Repair Services Include

Emergency Boiler Repair

Immediate call-outs for broken boilers, leaks, error codes, or complete shutdowns available 24/7.

No Heating or Hot Water

We diagnose and repair faults causing loss of heating or hot water, restoring comfort fast.

Boiler Pressure Issues

Fixing low or high boiler pressure, leaks, expansion vessel faults, and circulation issues.

Boiler Fault Codes & Diagnostics

Advanced fault finding for modern boilers, including electronic and sensor-related issues.

Give us a quick call and we will help you right away. Give us a quick call

• Our Process

We will get everything fixed following some simple steps

1 Call Us

Get in touch by phone or online and tell us what’s happening. We’ll ask a few quick questions to understand the issue and give you immediate advice if needed.

2 Rapid Engineer Dispatch

We send the nearest available Gas Safe registered engineer to your location. In most cases, we can be with you within 40-60 minutes anywhere in London.

3 Diagnosis & Transparent Pricing

Once on site, we’ll inspect the problem, explain what’s needed and provide clear, honest pricing before any work begins. No hidden costs, no surprises.

4 Professional Repair & Testing

We fix the issue efficiently using professional tools and quality parts. Before we leave, everything is fully tested to ensure your system is safe and working perfectly.

4.9

Over 300 Reviews

• Why Us

What Makes Us Different

40 Min Arrival

We reach you within 40 minutes for emergency call-outs, getting help to you fast when time matters most.

Trusted Locally

Built on reputation and repeat customers, we’re trusted locally for reliable work and honest service.

Local Service

We’re based nearby, which means faster response times and fair pricing with no hidden costs.

Competitive Prices

Clear, honest pricing with no hidden fees, quality work at rates that make sense.

24/7 Emergency Service London

We’re available 24/7 to respond quickly, day or night. Holidays & Weekends.

Domestic & Commercial Services

We provide reliable plumbing and on-site services for homes, landlords and businesses of all sizes.

• FAQs

Frequently Asked Questions

Do you offer same-day emergency plumbing services?

Yes we provide same-day emergency plumbing services across London. Whether it’s a burst pipe, water leak, blocked drain or broken boiler, we aim to respond as quickly as possible to get your system back up and running. Our team is available for urgent callouts and always carries the tools and parts needed to fix most issues on the first visit.

When you call, we’ll take a few details about the problem, advise you on any immediate steps to limit damage and send the nearest available engineer to your location. Our plumbers are fully trained to handle all types of emergencies, from residential faults to commercial breakdowns.

We understand that plumbing problems can’t wait, especially when they cause water leaks or heating loss. That’s why we prioritise same-day service whenever possible.

Which areas of London do you cover?

We cover all areas of London & Greater London. Our engineers and plumbers are based across North, South, East, and West London, so we can respond quickly no matter where you’re located. We regularly serve homes and businesses in areas such as Westminster, Camden, Islington, Hackney, Greenwich, Croydon, Ealing, Hammersmith, Richmond, and beyond.

We also work in parts of Greater London and nearby areas, depending on the job type and urgency. If you’re not sure whether we cover your postcode, just give us a call, chances are, we do.

Because we have engineers based across the city, we can usually reach you the same day for emergencies. For planned work such as boiler installations, powerflushing, or heating upgrades, we’ll schedule a time that suits you. Our focus is on reliability and coverage, ensuring London homes and businesses have a dependable local team whenever they need us.

How often should I service my boiler?

Your boiler should be serviced once a year to keep it running safely and efficiently. Annual servicing helps prevent breakdowns, reduces energy use and ensures your warranty remains valid.

During a service, an engineer will inspect all major components, clean the burner and heat exchanger, check gas pressure, test safety controls and make sure there are no leaks or carbon monoxide risks. If small faults are spotted, they can be fixed before turning into expensive repairs.

Regular servicing also keeps your central heating working properly and helps extend the lifespan of your boiler. It’s especially important before winter, when your heating system is in constant use.

If you’re a landlord, you’re legally required to have an annual gas safety check on any rented property but homeowners benefit just as much from keeping their boiler maintained yearly.

Are your engineers certified?

Yes all our engineers and plumbers are fully certified, trained and Gas Safe registered. This means they’re legally qualified to work on gas appliances, boilers, and central heating systems. Every engineer carries their Gas Safe ID and you can always ask to see it before any work begins.

In addition to Gas Safe certification, our team is experienced in all areas of plumbing, heating, and electrical work. We keep up to date with the latest safety standards and manufacturer training so every job is carried out correctly and safely.

It ensures your system is repaired or installed to the highest standard and guarantees your safety. Whether you need an emergency repair, installation, or inspection, you’ll always get a qualified professional on-site.

Can you help with gas safety certificates for landlords?

Yes we carry out Gas Safety Inspections (CP12 certificates) for landlords across London. If you rent out a property with gas appliances, it’s a legal requirement to have them inspected annually by a Gas Safe registered engineer.

Our team can test all boilers, gas fires and pipework to make sure everything is safe and compliant. Once the inspection is complete, we’ll issue your Gas Safety Certificate straight away, either digitally or in print.

We also offer reminders when your next inspection is due, making it easy to stay compliant without last-minute stress. For landlords managing multiple properties, we can schedule inspections in batches to save time and avoid certificate gaps.

Get a Boiler Repair Specialist engineer at your door fast

Onsite Contractors and Plumbing Ltd. has been serving London for over 10 years.

We are a locally owned and operated business dedicated to customer satisfaction.

Over 70% of our work comes through referrals, reflecting the trust our customers place in us.

Whether you need plumbing, heating, or gas services, our experienced team is here to help.

Onsite Contractors and Plumbing Ltd. Registered office address: Apex House, 2nd Floor, Grand Arcade, London, England, N12 0EH, Company number : 09510946

24 Hour Boiler Repair

24 Hour Boiler Repair

• About Us

Local 24/7 Boiler Repair Specialists in London

24/7 Emergency Boiler Repairs

Gas Safe Registered Engineers

All Boiler Brands Covered

Same-Day & Night Repairs

• Our Services

Our Emergency Boiler Repair Services Include

Emergency Boiler Repair

No Heating or Hot Water

Boiler Pressure Issues

Boiler Fault Codes & Diagnostics

• Our Process

We will get everything fixed following some simple steps

1

Call Us

2

Rapid Engineer Dispatch

3

Diagnosis & Transparent Pricing

4

Professional Repair & Testing

• Why Us

What Makes Us Different

40 Min Arrival

Trusted Locally

Local Service

Competitive Prices

24/7 Emergency Service London

Domestic & Commercial Services

• FAQs

Frequently Asked Questions

Get a Boiler Repair Specialist engineer at your door fast

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