L & L Plumbing & Heating

Unvented Cylinder Installation

Install high-pressure unvented hot water cylinders for instant mains-pressure showers and simultaneous hot water to multiple outlets — commissioned, safety-checked and guaranteed.

Unvented Cylinder Installation

L and L Plumbing and Heatings fit and commission unvented hot water cylinders for homes in Bournemouth, Ringwood, Fordingbridge and surrounding areas. With 25 years' experience and Gas Safe registration (568251), installations include the correct pressure controls, safety valves, expansion vessel and full commissioning. Every install comes with manufacturer warranty paperwork and a 2-year guarantee on our pipework. We handle building-regulation checks and leave your system tested and documented.

Unvented Cylinder Installation

How It Works

01

Survey & Specification

A site visit to assess mains pressure, available space, pipe runs and heating source — we recommend the correct cylinder size, ancillary kit and layout for your property.

02

Installation & Commissioning

We fit the cylinder, install expansion vessels and safety valves, connect to boiler or immersion heater, then commission the system to manufacturer and building-regulation standards.

03

Safety Checks & Handover

Full pressure and safety tests, documentation for building control, manufacturer warranty registration and a clear handover explaining operation and maintenance.

Why Choose us for Unvented Cylinder Installation?

Reliable Mains-Pressure Hot Water

High-pressure delivery to showers and multiple outlets removes cold spots and poor flow — ideal for bigger homes, Victorian terraces and modern bungalows in the area.

Compliance & Warranty Protection

Gas Safe Registered (568251) and fully insured, we complete commissioning, provide manufacturer warranty paperwork and offer a 2-year guarantee on our pipework for peace of mind.

Punctual, Local Engineers & Fast Response

25 years' local experience means quick diagnostics, same-day emergency callouts where possible, and clear, competitive pricing with no hidden extras.

What an unvented cylinder gives your home — an unvented cylinder stores hot water at mains pressure so multiple showers, baths and taps run without drop-off in flow. It suits properties where the existing cold-water tank is undersized or where you want a compact, high-performance hot-water system in houses across Bournemouth, Ringwood and Fordingbridge.

Our installation package covers the full system: cylinder, expansion vessel, pressure relief and combination valves, temperature controls, isolating valves and a safe cold-water feed. We commission to manufacturer standards, perform pressure and leak tests, register warranties and supply paperwork for building control. For queries or to arrange a site visit, email landlplumbing@hotmail.com.

Frequently Asked Questions

An unvented cylinder is a sealed, mains-fed hot-water cylinder that delivers hot water at mains pressure. Unlike vented systems that rely on a cold-water tank in the loft, unvented cylinders give stronger flow to multiple outlets and require pressure controls, an expansion vessel and safety valves installed to current standards.

Book a site survey for unvented cylinder installation

Arrange a local survey and written specification — we’ll recommend cylinder size, layout and give a clear installation plan with compliance checks included.
Book a Survey