In partnership with Avenue Property Services Group LTD

Hertfordshire Boiler Repair

keeping WATFORD, HERTFORDSHIRE warm & cosy since 2017
Avenue Heating

Warming homes in Watford and Herts since 2017

Hertfordshire's Boiler Repair

Boiler Repairs in Hertfordshire

When your boiler stops working, it’s more than just an inconvenience, no heating, no hot water, and added stress. That’s where Avenue Heating can help.

We support customers across Watford, Radlett, St Albans, and the wider Hertfordshire area, handling everything from error codes and unusual noises to complete boiler breakdowns.

Our engineers are trained to work with all major boiler brands, including Vaillant and Worcester Bosch, and we carry the tools and quality parts needed to resolve most issues on the first visit.

Whether it’s a minor fault or something more serious, you can count on Avenue Heating to get your system back up and running safely and efficiently.

OUR BOILER REPAIR ADVICE PAGE​

Boiler Repair Help & Advice

We believe in giving every customer clear, expert advice. When you book a boiler breakdown visit with us, one of our experienced heating engineers will carry out a full diagnosis to find the fault. If we can resolve the issue during that first visit, without needing any parts, we’ll get your heating and hot water back on straight away, no unnecessary delays, no hassle.

Homeowners use this self help checklist
Estimate costs of boiler repairs
Manufacturers boiler repairs from £350*
New boilers fully fitted from £2500
Service or repair?
Hertfordshire's Boiler Repair

Understanding Boiler Servicing & Boiler Repairs

Recognising when you require a boiler service versus a heating repair is vital. Boiler servicing, akin to a car’s MOT, is an annual check-up for safety, efficiency, and performance, including replacing specified parts as instructed by the manufacturer. Mainly, a boiler service is preventive, catching issues before they happen!

Boiler repairs, however, are required when a breakdown occurs and your boiler stops producing heating or hot water. Our standard boiler servicing and “Cosy Plan” service plan does not cover repairs or faulty boilers, focusing instead on preventive maintenance.

5 simple checks

Sometime's its simple, but sometimes you need a professional

Boiler repair check list

Boiler repair - first check list

Not sure if you need a boiler repair? Before calling us out, take a look at our simple first checklist. A few quick checks might help you spot the issue or at least give you a better idea of what’s going on. And if you’re still unsure, we’re always here to help.

Check for power

Make sure your boiler has power and the fuse hasn’t tripped, it’s a simple check that can often save a callout.

Check water pressure

Check that your boiler’s water pressure is at the correct level, low pressure can stop your heating from working properly.

Check hot water

Check if you’re getting hot water from your taps. If not, it could help pinpoint where the problem is.

Check thermostat is calling for heat

Check if you’re getting hot water from your taps. If not, it could help pinpoint where the problem is.

Check for gas

Check if other gas appliances, like your hob, are working. This helps confirm if there’s a gas supply issue.

Helpful advice for Herts People needing help

Boiler parts, approximate pricing guide reference only

Please take these guide pricing with a pinch of salt!
All boiler manufacturers’ pricing varies from each other, and sometimes there may be multiple different fans, pumps, valves and gaskets priced differently from each other. We have provided this list as a guideline to help you understand why some repairs are quite affordable and some hurt the bank.

  • Heat Exchanger Gasket £160

    Gaskets must be replaced when showing signs of wear. Failure to do so can lead to dangerous boilers.

  • Ignition Electrodes £190

    Responsible for igniting the fuel to start the boiler. Ignition electrodes are normally as part of a main service, but can fail at any point

  • Pressure Relief Valve £190

    Helps to release excess pressure from the system, preventing potential damage. A common repair.

  • Diverter Valve £220

    Directs hot water to either the radiators or the hot water system, depending on demand.

  • Magnetic filter replacement £300

    Replace old plastic magnetic filters & upgrade to a modern brass system filter.

  • Expansion Vessel £300

    Major componant. Compensates for the expansion and contraction of water in the system as it heats and cools.

  • Gas valve £350

    Major componant. Regulates gas flow to the burner for combustion, and its malfunction can lead to inefficiency or safety risks.

  • Fan £420

    Major componant. Essential for letting your boiler breath and venting out used gases safely.

  • Pump £360

    Major componant. Circulates hot water throughout the heating system.

  • Main Heat Exchanger £720

    Major componant. The most expensive repair as this is the core part that transfers heat from the burner to the water in the system.

  • New Boiler Replacement £2000

    New Boilers Fully Supplied & Installed starting from

wb1000

New boiler with 
5 year warranty

£2000

Inc controls & system protection

Avenue's case studies

Our Recent Boiler Repair Projects

Boiler Repair
Radlett
Boiler Repair
Boiler Repair Case Study
More Boiler Repairs - Coming soon!
Boiler Repair
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Case Study about boiler repair
Boiler repair - Coming soon!
Coming Soon
New project coming soon!
Case Studies

Hertfordshire & North London Boiler Packages

A boiler range for every Watford and Hertfordshire home & family budget!
WB 4000

Worcester 4000

Up to 10 year guarantee. Available in sizes ranging from 25kW – 30kW

£2000+

*Subject to supply chain fluctuations

Vaillant pro

Vaillant EcoTec Pro

Up to 10 year guarantee. Available in sizes ranging from 22kW – 35kW

£2370+

*Subject to supply chain fluctuations

WB 8000

Worcester 8000

Up to 12 year guarantee. Available in sizes ranging from 30kW – 50kW

£2350+

*Subject to supply chain fluctuations

The UK's biggest & most trusted boiler brands

We want to ensure you and your new boiler get along. 
So, all our new boilers include 90 days of homeowner help and support from our friendly staff.
Find your boiler brand for repair experts

All UK boiler helplines

Here’s the emergency help list of all UK boiler manufacturers who can fix your boiler! Good luck!

Press to see all brands

Boiler repair or replacement advice

Baxi Boiler Helpline

Like many manufacturers Baxi offer a one-off repair service for out of warranty boilers.

From £453.00 one off payment
the Baxi repair service Includes:

  • Engineer call-out, parts, labour and VAT
  • If they can’t fix your boiler, they only charge a £90 inspection fee and refund the rest of your payment
  • One-off payment from £453

Alternatively Avenue Heating can replace your broken boiler from as little as £2000
*subject to survey.

Helpful advice for Herts Residents needing help

Ideal Boiler Helpline

If your boiler is out of warranty and needs a repair, we are here to help and can provide you with a couple of options to choose from;

  • A fixed price repair, which includes all required boiler parts plus labour for a one off payment of £345. If we are unable to repair your boiler we will provide you with a partial refund

Alternatively, Avenue Heating can replace your broken boiler from as little as £2000 *subject to survey.

Helpful advice for Hertfordshire needing help

Vaillant Boiler Helpline

Repair & Care is a maintenance & support plan for your broken-down boiler, providing a one-off repair (where repairable) and then ongoing maintenance and support for your boiler and controls, to help ensure they continue to work correctly and to minimise the chances of mechanical and electrical breakdown.

If you have taken out a Repair & Care plan, you have a no fix no fee promise. If the expert engineer can’t fix the initial fault or if the boiler is beyond economic repair, you’ll get a full refund of any monies paid up under the plan until that point – no questions asked.

£70.00 a month for 6 months, totalling £420.00 (inc. VAT) by Direct Debit

Alternatively, Avenue Heating People can replace your broken boiler from as little as £2000 *subject to survey.

Helpful advice for Herts Residents needing help

Worcester Bosch Boiler Helpline

Like many manufacturers, Worcester Bosch offers a one-off repair service for out-of-warranty boilers.

Boiler repairs will cover your Worcester boiler and its Worcester controls for labour, VAT, and most parts. However, should the boiler require a significant/structural part (such as a shell, tank, or back plate) or if it is beyond economical repair, then the engineer will quote a revised charge on the day.

Boiler repairs start from £355 Inc. VAT. 

Alternatively, Avenue Heating can replace your broken boiler from as little as £2000 *subject to survey.

man pointing at answers to questions about terms and conditions
Helpful advice for Hertfordshire's Residents needing help

All other common brands

Some copy to include the boiler models that may still be repaired by the manufacturer.

If you would like to arrange your free boiler survey please fill in this short form and one of the team will be in-touch!

Please note the quickest and best way to contact Avenue Heating is via this form.

Get in touch

Avenue Heating

Let's Talk

Phone : 020 3137 3333

Head Office

Avenue Heating Suite Unit 107 186 St Albans Rd Watford WD24 4AS

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