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Local, professional boiler servicing
We deliver expert gas boiler servicing throughout Hertfordshire and the surrounding areas.
Gas Boiler Servicing, Hertfordshire
Reliable annual servicing from Hertfordshire's local heating engineers
At Fox Heating, we carry out thorough gas boiler servicing across Hertfordshire, giving you confidence that your boiler is safe, efficient and ready for the colder months. Our Gas Safe engineers combine careful workmanship with honest advice and fair pricing on every visit. We're proud to keep homes safe and warm in Hemel Hempstead, St Albans, Watford, and beyond!





Gas Boiler Servicing, Hertfordshire
Regular servicing keeps your boiler safe, efficient and reliable.
An annual gas boiler service helps prevent breakdowns, protects your manufacturer's warranty, and keeps your home running safely and efficiently all year round. Our experienced, Gas Safe registered engineers provide thorough boiler servicing throughout Hertfordshire, giving you peace of mind that your system is in expert hands.


Signs Your Boilers In Need Of A Service
Not sure if it's time to book one in? Look out for these signs.
A boiler that's overdue a service often shows warning signs before it breaks down completely. If you notice any of the following, it's worth booking a check sooner rather than later:
- Strange noises, such as banging, whistling or gurgling
- A yellow or orange flame instead of a crisp blue one
- Rising energy bills without any change in usage
- The pilot light keeps going out
- Longer than usual to heat up your home or water
- Signs of soot, staining or a smell around the boiler
- It's been over 12 months since your last service
What Does A Boiler Service Include?
- Checking the boiler's safety devices.
- Pressure testing and gas rating the appliance.
- Inspecting the seals for wear or damage.
- Inspecting the heat exchanger and burner.
- Checking the appliance for water leaks.
- Cleaning the condensate trap.
- Testing the working pressure.
- Inspecting the combustion chamber.
- Inspecting the fan.
- Inspecting the ignition.
- Checking flue integrity.
- Inspecting ventilation.
- An update on any current or changing regulations.


Worcester Bosch Accredited
Trusted Experts On Every Make And Model
As a Worcester Bosch Accredited installer, our engineers know these boilers inside and out, but our servicing doesn't stop there. We regularly service Worcester Bosch, Vaillant, Baxi, and Glow-worm boilers, so whatever's on your wall, you're in safe, experienced hands.
4 Year Key Service, Hertfordshire
A deeper, more thorough service every 4 years.
Alongside your annual service, we recommend a 4 year key service for extra peace of mind. This is a more comprehensive inspection where we strip down and clean your boiler's internal components, replacing key parts such as the burner gasket, electrodes and flame sensor. It's a great way to catch wear and tear early, keep your boiler running efficiently, and extend its lifespan.

Why Regular Servicing Matters
What you get from booking your boiler in every year.
A well maintained boiler works harder for less, and keeps your home safer too. Here's what regular servicing does for you:
Peace of mind on safety
Our engineers check all safety controls and test for gas or carbon monoxide leaks, so you can relax knowing your home is safe.
Fewer surprise breakdowns
Small faults get spotted and fixed early, well before they turn into an expensive repair or a boiler that packs in mid-winter.
Lower running costs
A boiler that's clean and correctly tuned burns less fuel to do the same job, which shows up on your energy bills.
A valid warranty
Most manufacturers require proof of annual servicing to keep your warranty intact, so a missed service can cost you cover.
Steady heat and hot water
A well serviced boiler holds its performance, so you get consistent heating and hot water whenever you need it.
A longer working life
Keeping components clean and checked year on year means your boiler is built to last longer before it needs replacing.
One less thing to worry about
With your service up to date, you know your boiler is safe, reliable and ready for whatever the weather throws at it.
Boiler Care Plans
*Terms apply, see our care plans for full details


Gas Safety Certificate
Peace of Mind on Every Service
As Gas Safe Registered engineers, every service we carry out meets the highest safety standards. Landlords receive a valid Gas Safety Certificate upon completion, and homeowners get full confirmation that their boiler is safe, legal, and compliant. Get in touch with the team to arrange your service or book your next appointment.

Landlord Boiler Servicing, Hertfordshire
Gas Safety Certificates for landlords across Hertfordshire.
As a landlord, you're legally required to have a Gas Safety Check carried out every 12 months on any gas appliances in your rental property, with a valid certificate provided to your tenants.
Our Gas Safe registered engineers carry out landlord boiler servicing and gas safety inspections across Hertfordshire, from single properties to larger portfolios, helping you stay compliant and keep your tenants safe.
Already on one of our Care Plans? Add landlord Gas Safety cover from just £2 per month.
What's Included In A Landlord Gas Safety Check
Everything covered in your CP12 Gas Safety Certificate.
Our Gas Safe registered engineers carry out a full inspection of every gas appliance in your rental property, checking:
- Boiler, cooker, gas fire and any other gas appliances
- Safety devices and correct operation of controls
- Appliance ventilation and flue performance
- Gas tightness and working pressure
- Signs of wear, leaks or unsafe installation
- Physical stability of each appliance
Once complete, you'll receive your CP12 certificate, valid for 12 months and ready to pass on to your tenants.

FAQs About Boiler Servicing
Everything you need to know about your boiler service
Whether you're booking your first service or you're a landlord staying on top of your Gas Safety Certificate, here are the answers to the questions we get asked most.
How long does a boiler service take?
Most gas boiler services take between 30 and 45 minutes to complete, depending on the make and model. Our engineers work efficiently without cutting corners, checking every safety point on the list before signing off.
How often should I service my boiler?
We recommend an annual service for every gas boiler, whether it's a rented property or your own home. Servicing yearly:
- Keeps your manufacturer's warranty valid
- Reduces the risk of a breakdown in winter
- Confirms your boiler is running safely and efficiently
If you're a landlord, an annual service also ties in with your legal Gas Safety Check requirement.
Do I need a Gas Safety Certificate as a landlord?
Yes. If you rent out a property with a gas boiler or other gas appliances, you're legally required to have a Gas Safety Check carried out every 12 months by a Gas Safe registered engineer. You must then provide your tenants with a copy of the certificate, and keep records for at least two years.
Is a Gas Safe registered engineer required?
Yes, by law. Any work on a gas boiler must be carried out by a Gas Safe registered engineer. All our engineers are fully qualified and registered, and we'll always provide our Gas Safe ID on request. It's worth checking this for any engineer you use, since unregistered gas work is illegal and can be dangerous.
Do I need to be home during the service?
Yes, someone over 18 needs to be present so our engineer can access the boiler and heating system, and talk you through anything found during the check. If you're a landlord arranging access on behalf of a tenant, just let us know and we'll coordinate directly with them.
What happens if my boiler fails a safety check?
If our engineer finds a fault that makes the boiler unsafe to use, they'll explain the issue clearly and advise on next steps. Depending on the problem, this could mean:
- A repair to bring the boiler back to a safe working condition
- A part replacement, such as a valve or sensor
- Advice on replacement, if the boiler is beyond economical repair
We'll always talk you through the options and costs before any further work goes ahead.
What's the difference between an annual service and the 4 year key service?
Your annual service covers a full check of the boiler's safety devices, pressure, and components. Every 4 years, we recommend a deeper key service on top of this, where we strip down and clean the internal components and replace key parts such as the burner gasket, electrodes and flame sensor. It's a great way to catch wear early and extend your boiler's lifespan.
Can you service any make or model of boiler?
Our engineers are experienced in servicing all major gas boiler brands, including Worcester Bosch, Vaillant, Baxi, and Glow-worm. If you have a different make in mind, get in touch and we'll be happy to confirm we can help.
Boiler Servicing Cover Area
Local boiler servicing across Hertfordshire
We provide gas boiler servicing and landlord Gas Safety Checks across Hemel Hempstead, St Albans, Harpenden, Watford, Berkhamsted, Welwyn Garden City, Hatfield, Radlett, Kings Langley, Abbots Langley, Tring and Wheathampstead, with Gas Safe registered engineers carrying out thorough, reliable servicing wherever you're based. If you're just outside these areas, get in touch anyway, we may still be able to help.

