Bathroom · IslingtonA family-run team of Gas Safe registered engineers. Same-day callouts, fixed written quotes, and zero mess left behind — across London and the Home Counties.

No call centres, no sub-contracted strangers. Halcyon engineers wear our uniform, drive our vans, and stand by their work in writing.
Burst pipe, flood, no heat in winter — a real engineer answers, day or night. Most jobs reached within the hour across central London.
Call 0203 555 0188
Bathroom · Islington
Heating · Hampstead
Repipe · CamdenWe're plumbers first. The thermal cameras, leak loggers and route-planning tech just help us do the trade better — not replace the people doing it.
Same family. Same standards. Three generations of plumbers on the team today.
Every job priced flat, in writing, before we lift a tool. No timed-rate surprises.
Fully accredited, fully insured, and audited annually for safety and competence.
ETA texts when the engineer leaves the depot. A real human voice on the phone.
Every installation is backed in writing. We come back, free, if anything moves.
Dust sheets, shoe covers, vacuumed floors. Your home is left tidier than we found it.
Three depots. Twelve engineers. Average 47-minute response inside the M25. If you can see it on the map, we cover it.

Call, WhatsApp or book online. A real human answers, day or night.
On-site assessment with a written, flat-rate quote. No obligation.
Engineer arrives in uniform, fixes it cleanly, leaves no mess.
“Boiler went on a Sunday night in February. Halcyon had an engineer at our door before midnight and heat back on by 1am. Honestly faultless.”
“Quoted, fitted and finished a full ensuite in 9 days. Tidy crew, fair price, beautiful work. Already booked them for the downstairs WC.”
“Three other plumbers said it was guesswork. Halcyon found the leak under our kitchen floor in 20 minutes with a thermal camera. Saved the room.”
Fast response times and professional plumbing solutions tailored to your needs. Tell us what's wrong — we'll do the rest.