Our Boiler Repair Services
A broken boiler is more than an inconvenience — especially in winter. Our engineers diagnose and repair faults on all major boiler brands, including Worcester Bosch, Vaillant, Baxi, Ideal, and Glow-worm. Common issues we fix include:
- Boiler not igniting or cutting out mid-cycle
- Low boiler pressure or constant pressure loss
- Strange banging, whistling, or gurgling noises (kettling)
- Leaking or dripping from the boiler unit
- Radiators not heating up properly
- Error codes and faulty PCBs, pumps, or diverter valves
- No hot water but heating works (or vice versa)
We carry a wide range of common parts on our vans, meaning most repairs are completed in a single visit. For emergencies, we offer 24/7 call-outs with a typical response time of under 60 minutes across our South London service area.
New Boiler Installation
If your boiler is over 10–15 years old, frequently breaking down, or costing too much to run, a new installation could save you hundreds of pounds a year on energy bills. We supply and install boilers from leading manufacturers and help you choose the right system for your property.
Types of boiler we install:
- Combi boilers — ideal for smaller homes and flats with one bathroom. No separate tank or cylinder needed.
- System boilers — suited to larger homes with multiple bathrooms. Works with a hot water cylinder for higher demand.
- Regular (conventional) boilers — best for older properties with existing tank-fed systems that need a like-for-like replacement.
Every installation includes a free home survey, a written quote with no obligation, professional fitting by Gas Safe engineers, system flushing and testing, and registration of your manufacturer warranty.
Why Choose DCN ServTech for Your Boiler?
- Gas Safe Registered — fully qualified engineers on every job
- Same-Day & Emergency Service — 24/7 availability across Croydon and South London
- All Major Brands — Worcester Bosch, Vaillant, Baxi, Ideal, and more
- No Hidden Fees — free quotes for standard work, clear pricing upfront
- Manufacturer Warranties — all new installations come with full warranty registration
- Local Engineers — based in Croydon, we know South London properties inside out
Areas We Cover for Boiler Services
We provide boiler repair and installation across Croydon, Bromley, Thornton Heath, Norbury, Crystal Palace, Streatham, Brixton, Mitcham, Lewisham, Penge, Beckenham, South Norwood, Sydenham, Dulwich, Catford, and surrounding areas.
Frequently Asked Questions
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