Mended / Services

Five things,
done properly.

We don't pretend to do everything. Our specialism is gas, heating and hot water — engineered cleanly, signed off correctly, and explained clearly. Every job comes with documentation and a same-day quote.

01

Boiler
Servicing.

An annual service is the single most important thing you can do for your boiler — and your wallet.

From £85

Manufacturers require an annual service to keep your warranty valid. We work to manufacturer specification — every component checked, cleaned and tested — and issue a full digital service report.

What's included:

  • Combustion analysis. Calibrated FGA reading on every flue, every visit.
  • Visual inspection of the flue, gas pipework, casing and seals.
  • Pressure check of the expansion vessel — recharged if needed.
  • Magnetic filter drain & flush (where fitted).
  • Safety devices tested including overheat thermostat & PRV.
  • Service report emailed to you, kept on file by us. Reminder when next is due.

Got a Worcester, Vaillant, Ideal, Baxi, Viessmann, Glow-worm or Potterton? You're covered.

02

Boiler
Repairs.

No heating, no hot water, error code on the screen? We diagnose first, quote in writing, fix it cleanly.

From £75 diagnostic

Three other plumbers couldn't crack it? That's our favourite kind of call. We use the manufacturer service manual for every diagnosis — never guesswork — and we carry the most common parts on the van.

Common repairs we handle:

  • Low pressure / repressurising — and finding the leak that caused it.
  • Pump & diverter valve replacement on combi systems.
  • PCB and gas valve faults — diagnosed with manufacturer test sequences.
  • Flue / sealed combustion repairs to safe operating standards.
  • Cold radiators — power flush, magnetic dosing, sludge removal.
  • Frozen condensate pipes — fast fix and a long-term solution.

Honest answer: sometimes the right call is replacement, not repair. If that's where you are, we'll tell you straight and quote both options.

03

New Boiler
Installs.

A new boiler is a 10–15 year decision. We treat it that way — and back it with a proper warranty.

Free survey · Fixed price

We install premium boilers from the brands we trust — and we power-flush your system before, not after. Every install is benchmarked, registered with Gas Safe, and signed off with a Building Regs notification.

What you get:

  • On-site survey — heat loss calculation, cylinder check, flue route, gas supply assessment.
  • Fixed written quote with itemised costs. No surprises mid-job.
  • Premium-only brands: Worcester Bosch, Vaillant, Viessmann, Ideal Logic.
  • Power flush of the existing system + magnetic filter installed as standard.
  • Smart controls — Hive, Nest, Tado, Honeywell — fitted and programmed.
  • Up to 12-year manufacturer warranty on Worcester & Vaillant installs.
  • Benchmark book + Gas Safe certificate handed over on completion.
04

Landlord
Gas Safety.

CP12 certificates, issued same-day, kept on file. Multi-property discounts as standard.

From £75 single property

If you let property in Essex or Suffolk — single Airbnb to portfolio of 50 — your annual gas safety check is the legal foundation of your tenancy. We do them properly, not as a tick-box.

What's covered:

  • Tightness test of the gas installation.
  • Visual inspection & combustion analysis of every gas appliance.
  • Flue integrity test & ventilation check.
  • CP12 certificate issued digitally and emailed within 24 hours.
  • Renewal reminders — we email you a month before expiry, every year.
  • Portfolio discounts for landlords/agents with 5+ properties.

Letting agents — get in touch about a managed-portfolio rate.

05

Unvented
Cylinders.

G3 qualified servicing and replacement of unvented hot water cylinders.

Service from £110

An unvented cylinder is a pressurised system. By law it needs annual servicing by a G3 qualified engineer to keep your warranty valid and your home safe. We hold the qualification — and the kit to do the job properly.

Service includes:

  • Expansion vessel pre-charge check & recharge.
  • Temperature & pressure relief valve test & clean.
  • Tundish & discharge pipework visual inspection.
  • Immersion heater test on dual-fuel installs.
  • Anode replacement if required for warranty compliance.
  • Service certificate for your manufacturer warranty file.

Replacement cylinders supplied & fitted — Megaflo, Telford, Joule and more.

06

General
Plumbing.

Leaks, taps, towel rails, designer rads, bathroom installs. Ask us — we probably do it.

From £65 call-out

If it's water or gas, chances are we can sort it. Beyond boilers we cover the full range of domestic plumbing — with the same tidy finish you'd expect from any Mended job.

Examples:

  • Leak detection & repair — visible and hidden.
  • Tap, shower & valve replacement.
  • Designer radiators & heated towel rails supplied & fitted.
  • Radiator balancing & thermostatic valve installation.
  • Bathroom installations — first & second fix.
  • Outside taps & garden water supplies.

Tell us what's broken.

Drop us a WhatsApp with a couple of pictures — we'll come back with a fixed-price quote, often within the hour.