Booking a boiler service for the first time – or with a new engineer – can feel a little uncertain if you are not sure what to expect. What will the engineer need access to? How long will it take? What happens if something is wrong? This guide walks through the entire process from booking to completion, so you know exactly what a professional boiler service looks like when Prof Heat Services visits your home in Crewe or the surrounding Cheshire area.

Before the Visit – How to Prepare

There is not much to do before a boiler service, but a few simple things will help the visit go smoothly. Make sure the boiler is accessible – if it is inside a cupboard, clear any items stored in front of it before the engineer arrives. The engineer will also need to access the stopcock and, where relevant, the hot water cylinder or system header tank, so make sure those are reachable too.

If you have paperwork from previous services or the original boiler installation, have it ready. It is not essential, but it helps the engineer understand the history of the appliance and spot anything that may have changed. If you are a landlord, have the previous CP12 gas safety certificate to hand as well.

When the Engineer Arrives

A Gas Safe registered engineer from Prof Heat Services will arrive at the agreed time with all the tools and equipment needed for the service. Before starting any work, the engineer will ask a few straightforward questions – whether you have noticed any issues with the boiler recently, any unusual noises, loss of pressure, or changes in how the heating or hot water has been performing. Even minor things are worth mentioning, as they can point to developing faults that a visual inspection alone might not immediately reveal.

You do not need to stay in the same room throughout the visit, but you will need to be present in the property. The service will involve the boiler being switched off temporarily, so hot water and heating will be unavailable for a short period during the checks.

What Happens During the Service

A standard boiler service with Prof Heat Services follows a thorough, systematic process. The engineer will work through each of the following checks in turn:

Visual inspection of the boiler casing and components for signs of damage, corrosion or leaks
Flue inspection and combustion analysis to confirm gases are venting safely and the boiler is burning efficiently
Heat exchanger inspection for signs of cracking, scale or deterioration
Burner removal, inspection and cleaning where required
Gas pressure and flow rate testing against manufacturer specifications
Safety device testing including the overheat thermostat and pressure relief valve
Seals and gaskets check for signs of deterioration
Condensate trap and pipework inspection and clearance if required
Controls, programmer and thermostat check for correct operation
System pressure check and visual inspection for leaks or circulation issues

The full process typically takes between 45 and 90 minutes depending on the make, model and condition of the boiler. For a full breakdown of everything included, see the boiler service Crewe page.

What If Something Is Found?

If the engineer identifies a fault or a component that needs attention, you will be told clearly and honestly what it is, what caused it, and what the options are. Prof Heat Services does not carry out repairs without your agreement and will never recommend work that is not genuinely needed. If a repair can be completed on the same visit, the engineer will advise on cost before proceeding. If it requires a return visit or specific parts, a quote will be provided with no obligation to proceed.

In the rare case that the boiler is found to be unsafe to operate – for example due to a serious flue fault or carbon monoxide risk – the engineer is legally required to advise you not to use it until the issue is resolved. This is always done with a full explanation of the reasons and the recommended next steps.

At the End of the Visit

Once all checks are complete and the boiler has been reassembled and tested, the engineer will give a clear verbal summary of the boiler’s condition and anything found during the service. A written service record will be provided – keep this in a safe place. It is the evidence your boiler manufacturer requires to confirm the warranty remains valid, and you will need it if you ever make a warranty claim or sell the property.

The heating and hot water will be restored before the engineer leaves, and you will have the opportunity to ask any questions about the boiler, the heating system, or anything else observed during the visit.

How Much Does a Boiler Service Cost in Crewe?

Prof Heat Services charges £70 plus VAT for a standard annual boiler service – no call-out fee, no hidden charges. It is a straightforward fixed price that covers everything described above. The Gas Safe Register recommends always verifying your engineer is registered before booking any gas work. Prof Heat Services Gas Safe registration number is 649322.

Book a Boiler Service in Crewe

Prof Heat Services provides annual boiler servicing across Crewe, Nantwich, Sandbach, Haslington, Middlewich and the surrounding Cheshire area. With over twenty years of experience and Gas Safe registration number 649322, every service is carried out thoroughly, honestly and to a consistently high standard. To book or to ask any questions, get in touch for a free no-obligation quote.