With summer now in full swing across Tamworth, Sutton Coldfield, and Lichfield, most homeowners have switched off their central heating and are enjoying the warmer weather. But while your boiler may be taking a well-earned rest, summer is actually the perfect time to give it some attention — before the cold snaps of autumn and winter arrive.
At Vulcan Heat (Gas Safe registered: 617816), we help homeowners across the West Midlands and Staffordshire keep their heating systems running safely and efficiently all year round. In this guide, we share our top summer boiler maintenance tips to help you avoid costly breakdowns when you need your heating most.
Why Summer Is the Best Time for Boiler Maintenance
It might seem counterintuitive to think about your boiler when the sun is shining, but there are very good reasons why heating engineers recommend summer as the ideal time for maintenance:
- Better engineer availability – Demand for heating engineers drops significantly in summer, meaning you can book appointments at a time that suits you, without the long waits common in winter.
- More competitive pricing – With lower demand comes greater flexibility on pricing. You’re far less likely to face emergency call-out rates in summer.
- Time to fix problems properly – If your boiler needs a part replaced or a repair carried out, summer gives you the luxury of time. There’s no pressure to get the heating back on urgently.
- Peace of mind before winter – Knowing your boiler has been professionally checked and serviced means you can head into autumn with confidence.
For homeowners in Tamworth, Sutton Coldfield, and Lichfield, where winters can be cold and damp, getting ahead of potential boiler problems in summer is simply good sense.
Top Summer Boiler Maintenance Tips
1. Book Your Annual Boiler Service Now
The single most important thing you can do for your boiler this summer is to book an annual service with a Gas Safe registered engineer. Under UK law, all work on gas appliances must be carried out by a Gas Safe registered professional — never attempt to open or repair your boiler yourself.
A professional boiler service typically includes:
- Inspection and cleaning of the burner and heat exchanger
- Checking the flue for blockages and correct positioning
- Testing safety devices and controls
- Checking for gas leaks and carbon monoxide risks
- Verifying system pressure and water flow
- Issuing a service report for your records
A service report is valuable not just for safety — it’s often required to maintain your boiler’s manufacturer warranty and can be important when selling your home.
At Vulcan Heat, our Gas Safe engineers (registration number 617816) carry out thorough boiler services across Tamworth, Sutton Coldfield, and Lichfield. Book your boiler service today and beat the autumn rush.
2. Use Your Boiler’s Summer Mode
Most modern combi boilers are equipped with a “summer mode” setting. This clever feature disables the central heating function while keeping your hot water running as normal. It also allows the boiler to carry out internal maintenance routines — such as pump exercise cycles and pressure checks — without consuming gas for space heating.
If your boiler has a summer mode, make sure it’s switched on rather than turning the boiler off completely. Check your boiler’s manual or ask your heating engineer to show you how to activate it.
3. Don’t Switch Your Boiler Off Completely
One of the most common mistakes homeowners make in summer is turning their boiler off entirely and leaving it dormant for months. While this might seem like a sensible way to save energy, it can actually cause problems.
Extended inactivity can lead to component seizing — where internal parts like pumps and motorised valves become stuck due to corrosion or mineral deposits. When you try to restart the boiler in autumn, you may find it won’t fire up at all.
If your boiler doesn’t have a summer mode, the solution is simple: run the heating for 15–20 minutes every two to three weeks throughout summer. This keeps the internal components moving and circulates the system’s protective inhibitor fluid.
4. Bleed Your Radiators
Air can accumulate in your radiators even when the heating system isn’t in use. Trapped air reduces efficiency and can cause cold spots when you turn the heating back on in autumn.
Summer is a great time to bleed your radiators — it’s a simple DIY task that takes just a few minutes per radiator. You’ll need a radiator bleed key (available from any DIY store) and a cloth to catch any drips.
After bleeding your radiators, always check your boiler’s pressure gauge. The pressure should typically sit between 1.0 and 1.5 bar. If it’s dropped below 1 bar, you’ll need to repressurise the system using the filling loop — your boiler manual will explain how, or your heating engineer can show you.
5. Check Around Your Boiler
Take a few minutes to inspect the area around your boiler:
- Clear any clutter – Boxes, coats, or other items stored near the boiler can restrict ventilation and create a fire hazard. Keep the area clear.
- Look for signs of leaks – Check for any water stains, damp patches, or corrosion around the boiler, pipework, and seals.
- Check the flue terminal – If you can safely see the external flue outlet, make sure it’s free from obstructions such as bird nests, leaves, or debris.
If you notice anything unusual — discolouration, strange smells, or signs of a leak — contact a Gas Safe registered engineer promptly. Don’t ignore warning signs.
6. Consider a Carbon Monoxide Alarm
Carbon monoxide (CO) is a colourless, odourless gas that can be produced by a faulty boiler or gas appliance. It’s extremely dangerous and can be fatal. Since 2022, UK building regulations require a carbon monoxide alarm to be installed whenever a new or replacement gas-burning appliance is fitted.
If you don’t already have a CO alarm near your boiler, we strongly recommend fitting one. They’re inexpensive and could save your life. Test your existing alarm regularly and replace it according to the manufacturer’s guidelines.
Is It Time to Replace Your Boiler?
Summer is also the ideal time to assess whether your boiler is approaching the end of its useful life. Consider a replacement if:
- Your boiler is 10–15 years old or more
- It requires frequent repairs or has broken down more than once in the past year
- Your energy bills are rising despite no change in usage
- The boiler produces inconsistent heating or hot water
- It’s making unusual noises such as banging, kettling, or gurgling
Modern condensing boilers operate at over 90% efficiency, compared to older models which may be as low as 60–70%. Upgrading to a new boiler could significantly reduce your annual heating bills and carbon footprint.
Our team at Vulcan Heat can advise you on the best boiler options for your home and budget. View our full range of heating services or get in touch for a free quote.
What to Do If Your Boiler Breaks Down This Summer
Even in summer, boiler breakdowns can happen — and losing hot water is never convenient. If your boiler stops working, don’t panic.
Never attempt to repair a gas boiler yourself. Always call a Gas Safe registered engineer. Vulcan Heat offers a fast-response boiler breakdown service across Tamworth, Sutton Coldfield, and Lichfield, getting you back up and running as quickly as possible.
Book Your Summer Boiler Service with Vulcan Heat
Don’t wait until the first cold morning of autumn to discover your boiler has a problem. Summer is the smart time to act — and Vulcan Heat is here to help.
We’re a Gas Safe registered heating company (registration number 617816) serving homeowners across Tamworth, Sutton Coldfield, Lichfield, and the surrounding West Midlands and Staffordshire areas. Our experienced engineers provide professional boiler servicing, repairs, and installations at competitive prices.
Ready to book? Contact Vulcan Heat today or visit our boiler service page to find out more and arrange your summer service appointment.
Vulcan Heat – Gas Safe Registered: 617816 | Serving Tamworth, Sutton Coldfield & Lichfield
