R.W. Miller Plumbing & Heating
A Gas Safe registered plumbing and heating engineer covering South London and Surrey. One engineer, one point of contact, transparent pricing on every job.
About Reion
R.W. Miller Plumbing & Heating is run by Reion Miller, a Gas Safe registered engineer with over 7 years of hands-on experience in plumbing, heating, and gas work across South London. Reion started out as a sole trader before incorporating the business as a limited company in February 2023 — a reflection of a growing, established operation rather than a fresh start. He holds multiple Level 3 NVQ and ACS qualifications from City & Guilds of London Institute and covers all work personally. When you call, you speak to him directly — not a call centre or an answering service.
Based in South London, Reion has worked on properties across Wandsworth, Lewisham, Greenwich, Lambeth, Southwark, Bromley, and into Surrey — from Victorian terraced housing in Battersea and Balham to modern flats and conversions throughout the borough. That local familiarity means faster diagnosis and better advice on the systems most commonly found in each area.
R.W. Miller Plumbing & Heating Ltd is a registered limited company in England & Wales (Company No. 14695046). You can verify the registration on Companies House.
Gas Safe registered
All gas work — boiler repairs and installations, gas safety certificates, central heating — is carried out to Gas Safe standards. R.W. Miller is registered with the Gas Safe Register (Reg. No. 919881) and you are welcome to verify the registration at gassaferegister.co.uk before booking.
It is a legal requirement that all gas work in the UK is carried out by a Gas Safe registered engineer. Never allow unregistered work on any gas appliance, pipe, or flue. Always ask to see the card.
Qualifications & training
Reion holds a full set of industry qualifications including ACS accreditation — the nationally recognised competency scheme required for all gas engineers working on domestic properties in the UK.
- Domestic Natural Gas Installation and Maintenance (ACS) Level 3 NVQ — City and Guilds of London Institute
- Gas Emergency Service Operations (ACS) Level 3 NVQ — City and Guilds of London Institute
- Gas Utilisation Level 3 Diploma — City and Guilds of London Institute
- Gas Utilisation Installation and Maintenance: Cookers, Tumble Dryers and Leisure Level 3 Diploma — City and Guilds of London Institute
- Plumbing Level 2 Diploma — City and Guilds of London Institute
- Smart Metering – Dual Fuel Level 2 Diploma — City and Guilds of London Institute
- Health and Safety in the Workplace Level 3 Award — City and Guilds of London Institute
- First Aid at Work Level 3 Award — Mineral Products Qualifications Council
How we work
Call or message
Call the number above or send a message using the form. You will hear back the same day — often within the hour.
Diagnostic visit
Reion visits, assesses the fault, and gives you a fixed quote before any work begins. The diagnostic fee is £80 for the first hour on-site.
Fixed price repair
Once you approve the quote, the work gets done. No surprises. Parts and labour are included in the agreed price.
Signed off and certified
All gas and heating work is signed off correctly. Gas safety certificates issued the same day where applicable.
Coverage area
R.W. Miller covers all major South London boroughs and extends into Surrey. Current coverage includes Wandsworth (SW11–SW18), Lewisham (SE4, SE6, SE13, SE14), Greenwich (SE3, SE7, SE10, SE18), Lambeth (SE1, SE11, SW2, SW4), Southwark (SE1, SE5, SE15, SE17), Bromley (BR1–BR4), and Surrey (Sutton, Kingston, Epsom, and surrounding areas).
If you are unsure whether your postcode falls within the service area, call or send a message — Reion will confirm within the hour.
Need a plumber in South London today?
Call for an emergency or send a message for a quote. We respond fast, turn up on time, and give you a price before we start.