Specialist Gas Safe engineers — trained on every major boiler brand
Specialist Gas Safe engineers — trained on every major boiler brand
Renzy is the digital-first plumbing and heating company London actually needs. We've cut out the bloated call centres, the hidden fees, and the "engineer will arrive between 8am and 6pm" routine.
Book online in minutes. A Gas Safe engineer turns up on time, diagnoses the problem, gives you a transparent quote — and you pay nothing until the job is done.
We checked. £120 for the first hour — cheaper than every major London plumbing company. No hidden fees. No "minimum charges". You pay nothing until the job is done.
Pay nothing until the job is done · Extras explained before they're started
See Full Comparison →Every job — from a dripping tap to a full boiler swap — is handled by a Gas Safe registered engineer. Transparent quotes, no upselling.
Three free diagnostic tools to help you understand the cost and the fix before an engineer ever turns up. No email, no sign-up.
Three quick questions to tell you whether a repair is worth it — or whether a new install is the smarter spend.
Run the tool →A real ballpark for swapping your boiler — combi, system or regular — based on property size and brand.
Get a quote →Walk through your symptoms and we'll tell you the likely cause — and whether it's a DIY fix or worth calling us.
Diagnose now →From "I have a leak" to "it's fixed" — Renzy is the simplest plumbing experience in London.
Tell us the problem in 4 quick steps. Upload a photo if it helps. We'll confirm and slot you in within 15 minutes.
A Gas Safe engineer arrives on time, diagnoses the issue and gets to work. Any extras are explained before they happen.
Pay nothing until the job is done. Final total — first hour plus any agreed extras. Card, bank transfer, simple.
Based in Chelsea, working everywhere. Same response time, same transparent pricing — wherever you are in London.
Six promises we don't just print — we live by them on every job.
No deposits, no card up front, no "diagnosis fees". Engineer arrives, fixes the problem, you pay. That's it.
Cheaper than Aspect, Pimlico Plumbers and Wefix. Same Gas Safe qualification, same quality engineers — less money out of your pocket.
Need a part? Need a second hour? You'll know the cost before any work continues. No surprise bills, ever.
During working hours, an engineer is at your door inside four. Burst pipes and dead boilers don't wait — neither do we.
No phone tag, no waiting on hold. Use the booking form day or night — we'll confirm your slot inside 15 minutes during business hours.
Gas Safe registered, background-checked, manufacturer-trained on Vaillant, Worcester, Ideal, Viessmann and Baxi. Dan, Josh and Tom — named in every five-star review for a reason.
4-hour emergency response across every London borough. Pay nothing until the job is done.
"They came, they identified the issue with my boiler and had it all fixed in 30 minutes. The whole process was seamless and the pricing was competitive."
"Quick, clear communication and diagnosis. Transparent pricing. I would definitely use this company again."
"I had an issue with my boiler not giving hot water properly. Dan came out as an emergency the same day and sorted the issue out! Would recommend."
"I uploaded a couple of photos of my leaky tap and had an affordable quote and an appointment booked in a matter of minutes. Daniel who came out on site the next day was very professional. Would definitely use again!"
"Last week I had a Renzy engineer come out to fix my boiler after being let down by 2 other local companies. The engineer arrived on time and managed to fix my boiler the same day."
"Same day service, saved me so much trouble. Reasonably priced and Tom was friendly and punctual."
Named in every five-star Trustpilot review for a reason. Gas Safe, background-checked, and properly trained on every major boiler brand.
Engineer & Advisor
Books you in, gives the upfront quote, and gets onsite when the diary calls for it. Knows London plumbing inside out.
Message Josh
Gas Safe Engineer
"Dan came out as an emergency the same day and sorted the issue out." Named in reviews from Westminster, Kensington and beyond.
Request DanGas Safe Engineer
"Tom was friendly and punctual." Same-day specialist — the engineer Adam in Shepherds Bush couldn't recommend more.
Request TomThe things London homeowners actually ask before booking a plumber.
Our first hour is £120 — the best value of any major London plumbing company. You pay nothing until the job is done, and any extras (parts, additional time) are quoted and approved before any further work happens. No hidden fees, ever.
Yes — every Renzy engineer is Gas Safe Registered. We also have manufacturer-level training across Vaillant, Worcester Bosch, Ideal, Viessmann and Baxi. Every engineer is background-checked before going on the road.
During working hours, our target emergency response across London is 4 hours. For a burst pipe, no hot water or a complete boiler failure, call our emergency line on 07984 631995 — or WhatsApp us for the fastest reply.
No. There's no deposit, no card up front, no "diagnosis fee". The engineer arrives, you agree the work, the job is done — then you pay. It's that simple.
Every London borough. We're based at 289 Brompton Road in Chelsea, and our named coverage areas include Battersea, Chelsea, Chiswick, Clapham, Ealing, Fulham, Hammersmith, Kensington, Marylebone, Notting Hill, Putney, Richmond, Shepherds Bush, Wandsworth and Westminster — plus everywhere in between.
Use the 4-step booking form on our homepage — tell us the issue, your postcode, your preferred slot, and any photos that help. We'll confirm your booking within 15 minutes during business hours and have an engineer on the way fast.
Almost certainly. Our engineers are specifically trained on Vaillant, Worcester Bosch, Ideal, Viessmann and Baxi — the five biggest UK boiler brands. If you're unsure, just send us a photo of the boiler via WhatsApp before booking.
Yes — we provide CP12 Landlord Gas Safety Checks across London. Book online or call us and we'll arrange a slot that fits around your tenants. Certificate issued on the day.
Use the form, call us, or WhatsApp. Whatever's quickest for you — we reply in 15 minutes during working hours.
Fill in the form — we'll reply within 15 minutes during business hours.