Our Services
Boiler Repair
About This Service
Boiler Repair You Can Trust
All repairs are carried out by Gas Safe registered engineers and backed by manufacturer warranties where applicable plus our workmanship guarantee for added protection. McGrath Heating Services provide responsive, safety-first fault diagnosis on-site, using genuine Baxi and Vaillant parts. We tackle no hot water, leaks, pressure loss and noisy boilers across Blackheath, Greenwich and nearby areas, delivering clear reports, immediate safety actions and honest advice on repair versus replacement.

Pricing
Our Service Prices
All prices shown exclude VAT.
Boiler Breakdown Diagnostic
Identify the fault and understand the next steps.
What's Included
- On-site diagnosis by a Gas Safe engineer
- Safety inspection, pressure and combustion checks
- Identification of faults and required parts
- Written fault report and recommendations
Add-ons
- VAT charged additionally
Our Process
How It Works
Book a call
Contact our office or book online; we'll ask a few safety questions and arrange a convenient visit, usually same or next day in Blackheath and surrounding areas.
On-site diagnosis
A Gas Safe engineer conducts a safety-first inspection, pressure and combustion checks, and uses manufacturer diagnostics to identify the fault and required parts.
Repair, test & report
We complete repairs with genuine parts, carry out safety and efficiency tests, leave a clear job report and explain any warranty or follow-up care.
Benefits
Why Choose us for Boiler Repair?
Gas Safe and accredited
All gas work by Gas Safe registered engineers with Baxi and Vaillant accreditations — safety, compliance and the right parts every time.
Local, responsive service
Serving Blackheath, Greenwich and nearby wards for 26 years — fast attendance, clear communication and trusted local reviews (95+ positives).
Genuine parts & protection
We fit manufacturer parts and honour applicable warranties; our workmanship guarantee and clear paperwork give long-term peace of mind.
What we fix — faults range from no hot water and boiler leaks to pressure loss, ignition failure and noisy operation. Our engineers carry diagnostics and common replacement parts for Baxi and Vaillant systems so most faults are resolved on the first visit. Safety is always the first action: we isolate unsafe appliances and secure the property before any repair.
Transparent, trusted service — every job includes a written fault report, the safety checks we performed and any recommendations. McGrath Heating Services is Gas Safe registered and a Which? Trusted Trader and Checkatrade member with over 26 years’ experience. To book a call, ring 07812 739696 or email info@mcgrathheatingservices.co.uk.
FAQ
Frequently Asked Questions
We aim for same-day or next-day visits in Blackheath and nearby areas where possible. Exact timing depends on parts availability and current schedule; we’ll confirm the earliest appointment when you call.
Yes. All gas work is carried out by Gas Safe registered engineers. We follow current safety regulations and complete the required combustion and pressure checks after any repair.
Repairs use genuine manufacturer parts and are covered by any applicable manufacturer warranty; we also provide a workmanship guarantee. We’ll confirm the specific cover for your repair before starting work.
We provide priority visits for loss of heating or hot water where safety is at risk. If it’s outside working hours we’ll give immediate guidance and arrange the earliest possible visit.
Our decision is based on fault severity, age and efficiency of the boiler, parts availability and long-term running costs. We’ll give clear, evidence-based advice and a written recommendation so you can choose with confidence.
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