Whether you are dealing with a cold radiator, wondering if it is time to replace an ageing boiler, or planning a bathroom refit, most homeowners in Crewe, Nantwich and the wider Cheshire area run into the same handful of heating and plumbing questions sooner or later. This guide pulls it all together in one place, covering boilers, central heating, underfloor heating and general plumbing, along with when it is worth calling in a Gas Safe registered engineer rather than tackling it yourself.

Boiler Servicing, Repairs or Replacement: What Is the Difference?
These three terms get used interchangeably, but they solve different problems. A boiler service is a yearly check-up carried out on a working boiler, designed to catch small issues before they become expensive ones and to keep the manufacturer’s warranty valid. If you want to know exactly what happens during a visit, our guide on what to expect from a boiler service covers it step by step, and we have also written about how often you should actually book one. The Energy Saving Trust recommends doing this annually, ideally before the colder months rather than during them, when engineers are at their busiest.
A repair addresses a specific fault on a boiler that has already broken down. One of the most common faults we see is a boiler that keeps losing pressure, which we cover in detail in our guide to boilers losing pressure. A full boiler installation replaces the unit entirely. As a general rule, a boiler under ten years old with a single fault is usually worth repairing. An older boiler with a history of repeated call-outs, or one that has become noticeably less efficient, is often better replaced, and our guide to new boiler costs in Crewe breaks down what that typically involves.

Central Heating Explained: Keeping Every Room Warm
Your boiler is only one part of the system. Central heating covers everything the boiler feeds into, including radiators, pipework, the pump and the controls that decide how warm each room gets. When something goes wrong with heating, the cause is not always the boiler itself. We have written a full breakdown of why radiators stop heating up properly and how to fix it, but as a quick summary, according to Worcester Bosch, a radiator cold at the top usually points to trapped air, while one that is cold at the bottom is more likely caused by sludge inside the system.
Here is a quick reference for some of the most common central heating problems and what they usually mean:
| What You Notice | Likely Cause | What To Do |
|---|---|---|
| Radiator cold at the top only | Trapped air | Bleed the radiator |
| Radiator cold at the bottom only | Sludge or debris | Power flush may be needed |
| One radiator completely cold | Closed or seized valve | Check valves, call an engineer if seized |
| Whole house not heating properly | Boiler pressure, pump or diverter valve fault | Book a Gas Safe engineer |
| Boiler losing pressure regularly | Possible system leak | See our boiler pressure guide |
| Discoloured water when bleeding a radiator | Sludge in the system | System flush recommended |
Underfloor Heating and Heat Pumps
For renovations and extensions, more Cheshire homeowners are choosing underfloor heating over traditional radiators, particularly in open-plan spaces. We have covered the costs and practicalities in our guide to whether underfloor heating is worth it for Cheshire homes, and you can see a full installation from first fix to finished manifold in our underfloor heating case study from a recent Nantwich renovation.
Heat pumps are another option worth considering, particularly for newer or well insulated homes. If cost is a factor, it is worth reading our guide to heat pump grants available in Crewe and Nantwich before ruling one out.
Plumbing Problems Every Homeowner Should Know
Heating and plumbing overlap more than most homeowners expect, since a leaking pipe or a dripping tap can affect water pressure right through to your central heating system. Our plumbing services cover the everyday jobs that come up in most homes, including leaking pipes and joints, dripping or seized taps, running or blocked toilets, low water pressure, and general repairs to sinks, basins and bathroom fittings.
Some plumbing issues are safe to leave for a scheduled visit. Others, particularly anything involving a burst pipe, a significant leak, or no water at all, are worth an emergency call rather than waiting.
When It Is a Gas Safe Emergency
Certain problems should never wait for a scheduled appointment. If you smell gas, suspect a carbon monoxide leak, or notice scorching or discolouration around a boiler or gas appliance, turn off the gas supply at the mains if it is safe to do so, ventilate the property, and contact the National Gas Emergency Service on 0800 111 999 immediately, alongside your heating engineer. Every job carried out by Prof Heat Services is completed by a fully qualified Gas Safe registered engineer, and it is always worth checking that anyone working on a gas appliance in your home is properly registered before they start.

Recent Projects Across Cheshire
Rather than just describe the work, here is some of it in practice. Recent projects include a full Vaillant boiler installation in Nantwich, a boiler replacement in Wychwood, a full downstairs bathroom renovation in Nantwich, a Thomas Crapper WC installation in Wybunbury, and a flue and roof lead replacement in Willaston.
Heating and Plumbing Services Across Crewe, Nantwich and Cheshire
Prof Heat Services is based in Crewe and works across the surrounding Cheshire towns, so the advice in this guide reflects the kind of properties and heating systems we see day to day in the local area.
In Crewe itself, jobs range from modern new-build estates needing routine servicing through to older terraced housing where central heating systems are more prone to sludge build-up and benefit from regular flushing. Nantwich, with its higher proportion of older and period properties, often needs a more considered approach to retrofitting central heating and underfloor heating without disturbing original features, as reflected in several of the projects above. In Sandbach and Haslington, a steady mix of established family homes and newer developments means both routine servicing and full boiler installations are common. Middlewich and Willaston round out our regular coverage area, with the same standard of Gas Safe registered work available wherever you are based.
If your town is not listed here, get in touch. There is a good chance we already cover it.
Frequently Asked Questions
How do I know if I need a new boiler or just a repair?
As a general guide, a boiler under ten years old with an isolated fault is usually worth repairing. An older boiler with a history of breakdowns, or one that has become noticeably less efficient, is often more cost effective to replace. See our new boiler cost guide for typical pricing.
How often should central heating be serviced?
The boiler itself should be serviced annually. Full guidance is in our boiler servicing frequency guide. The wider central heating system, including a power flush where needed, is typically only required every several years, or sooner if you notice cold spots on radiators.
Are there grants available for heat pumps?
Yes, in some cases. See our guide to heat pump grants in Crewe and Nantwich for current eligibility.
What plumbing jobs should not wait for a scheduled appointment?
Burst pipes, significant leaks, and a complete loss of water pressure or supply are worth treating as urgent rather than waiting for a routine visit.
Do you cover my area?
Prof Heat Services is based in Crewe and covers Nantwich, Sandbach, Haslington, Middlewich, Willaston and surrounding Cheshire towns within around 30 minutes travel. Get in touch if your town is not listed and there is a good chance we cover it.
Need Help With Your Heating or Plumbing in Cheshire?
Whether it is a boiler service, a full installation, a central heating problem that needs diagnosing properly, or a plumbing repair, Prof Heat Services covers Crewe, Nantwich, Sandbach, Haslington, Middlewich, Willaston and the surrounding Cheshire area. Get in touch for an honest assessment and a free no-obligation quote. All work is carried out by a Gas Safe registered engineer (licence number 649322) with twenty years of experience working across Cheshire.
Need some additional advice or help?
Call us today for a free no-obligation quote. Gas Safe registered, locally based, and serving Crewe, Nantwich and the surrounding Cheshire area.



