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Planned work · Manchester · from £1,450 fitted

Unvented Hot Water Cylinder Installation in Manchester

Mains-pressure hot water at every tap, no loft tank, showers that feel like showers.

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Unvented cylinder installation in Manchester
No call-out feeNo night or weekend surchargeFixed price before we start12-month workmanship guarantee

Unvented cylinders are the upgrade older Manchester homes feel most, installed by G3-qualified engineers, because the law and physics both insist.

What you get

Unvented cylinder installation in Manchester: what the price includes

  • 01
    G3 qualified installation

    Unvented work legally requires the G3 ticket, ours carry it, and the Building Regs notification is included.

  • 02
    Sized for the household

    Bathrooms, occupants and mains flow measured; an undersized cylinder runs cold, an oversized one runs bills.

  • 03
    Safety stack done right

    Tundish, discharge pipework and expansion controls installed to spec, the parts that make “unvented” safe.

  • 04
    Annual service available

    The expansion vessel and safety valves want a yearly check, pairs with the boiler service visit.

  • 05
    G3 registered, and the paperwork filed

    Unvented cylinder work is notifiable under Part G of the Building Regulations and requires a specific G3 qualification on top of Gas Safe registration. We hold it, and we notify building control, which matters when you sell the house and the buyer's solicitor asks.

What this means in Greater Manchester

Local conditions we work around

A cylinder installed in Manchester will outlive the same unit in London, straightforwardly because there is no scale attacking the coil. What does shorten cylinder life here is corrosion, soft water is mildly aggressive, and a failing coil or a corroded immersion boss is the usual end. Inhibitor levels on the primary side are therefore the thing worth checking annually. G3 qualification and a correctly terminated discharge pipe are required here exactly as they are in London.

Where we do this in Manchester

Covered across Greater Manchester

Same published rate card and the same twelve-month workmanship guarantee everywhere below, there is no postcode loading. Each area has its own page with an arrival time taken from our job records rather than chosen for a website.

SaleStretfordPrestwichUrmstonTraffordWithingtonBuryBoltonOldhamRochdaleWiganAshton-under-Lyne All Manchester areas →
Straight answers

Unvented cylinder installation in Manchester, your questions

Unvented vs a combi?
Two showers running at once is the deciding question. Combis serve one outlet well; a cylinder serves the whole house simultaneously. Big household, more than one bathroom, cylinder wins.
What does it cost?
From £1,450 fitted replacing an existing cylinder; full conversions from vented (removing tanks, upgrading pipework) £2,500–£4,000. Fixed after survey.
Why does mine dribble from an outside pipe?
The discharge pipe running means a safety valve is passing, commonly the expansion vessel has lost its charge. It's the system telling you it needs its annual service; ignore it and the next part to fail is pricier.
How is it different from a normal hot water tank?
It is sealed and fed at mains pressure, so every hot tap and shower runs at the same pressure as the cold. No loft tank, no pump needed, and a far better shower. It also has safety devices that a vented tank does not, which is why the annual service is not optional.
Does it need servicing every year?
Yes. The expansion vessel, the temperature and pressure relief valve and the tundish all have to be checked annually. In hard-water London the discharge components scale up faster, and a seized T and P valve on a mains-pressure cylinder is genuinely dangerous.
Will my mains cope with it?
That is the first thing we measure. An unvented cylinder needs adequate incoming flow rate and pressure, and if your supply cannot deliver it the system will disappoint however good the cylinder is. We test at the stopcock before quoting.
How does Manchester soft water affect heating work?
It reverses the London problem. With no meaningful scale, heat exchangers stay clean and boilers reach their expected life. What we find instead is corrosion, soft water is mildly aggressive to older copper and steel, so system sludge, pinholed radiators and failing cylinder coils are the common findings. Inhibitor levels and a magnetic filter matter far more here than a scale reducer ever would.
24 hours · 365 days · Manchester

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