Unvented Cylinder Installations | JLP Plumbing

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Unvented Cylinder Installations in Hertfordshire

Rated 5.0 on Google · Fully insured

High-pressure unvented cylinder installation by qualified engineers.

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We reply to enquiries within 2 hours. Outside our opening hours, we reply as soon as we open.

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We give you the earliest time we can be with you.

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Our plumber explains the repair and agrees it with you before any work begins.

Open 7am to 9pm Monday to Friday, 7am to 7pm Saturday and Sunday.

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About This Service

Unvented Cylinder Installations

An unvented hot water cylinder provides mains-pressure hot water to every tap and shower in your home, no pump required. JLP Plumbing installs unvented cylinders by qualified engineers across Hertfordshire.

Unvented systems are increasingly popular because they deliver strong, consistent hot water pressure even to multiple outlets simultaneously. They also eliminate the need for a cold water storage tank in the loft.

All unvented cylinder installations must be carried out by a qualified engineer registered with an appropriate competent persons scheme. JLP's engineers hold the necessary qualifications, G3 unvented hot water storage.

Luxury Walk-In Shower project by JLP Plumbing View Project

What’s Included

Everything Covered, Start to Finish

When you book unvented cylinder installations with JLP Plumbing, here's what comes as standard.

Free, no-obligation quote and survey
Qualified, fully insured engineers
Quality materials from trusted trade brands
Clean, tidy work, dust sheets and daily clear-up
Workmanship guarantee on every job
Clear pricing with no hidden extras

How It Works

Simple, Stress-Free Process

From first call to finished job, we keep it straightforward.

01

Get in Touch

Call us or send the form. We'll talk through exactly what you need.

02

Agreed Before We Start

We explain the work and agree it with you before anything begins.

03

The Work

Our qualified team completes the job to a high standard, tidily and on schedule.

04

Aftercare

We check you're happy, leave everything clean, and back it with our guarantee.

Need a plumber?

Call 01462 510001Get a quote

Local Service

Unvented Cylinder Installations Across Hertfordshire

Based in Letchworth Garden City, JLP Plumbing carries out unvented cylinder installations for homeowners throughout Hertfordshire, from Hitchin, Baldock and Stevenage to St Albans, Harpenden and Welwyn Garden City. As a genuinely local team we understand the area's hard water and older housing stock, and we respond fast.

Unvented Cylinder Installations HitchinUnvented Cylinder Installations LetchworthUnvented Cylinder Installations BaldockUnvented Cylinder Installations StevenageUnvented Cylinder Installations Welwyn Garden CityUnvented Cylinder Installations HatfieldUnvented Cylinder Installations Hertford

FAQs

Common Questions

Do you offer free quotes for unvented cylinder installations?
Yes. Quotes for unvented cylinder installations are free and there's no obligation. We look at what you need, explain the options and agree everything with you in writing before any work begins.
Are you fully qualified and insured?
Absolutely. JLP Plumbing is fully qualified and carries £5M public liability and £10M employers' liability insurance, so you're completely covered. Every job is backed by our workmanship guarantee.
Which areas do you cover?
We're based in Letchworth Garden City and cover unvented cylinder installations across Hertfordshire, including Hitchin, Baldock, Stevenage, St Albans, Harpenden, Welwyn Garden City and surrounding towns.
How quickly can you start?
It depends on the size of the job, but we pride ourselves on fast response times. Call us on 01462 510001 and we'll let you know our earliest availability, emergencies are prioritised.
What is an unvented cylinder and how does it work?
An unvented cylinder stores hot water fed straight from the mains, so there's no cold water tank in the loft and your hot water comes out at mains pressure, which makes for stronger showers. Because it's a sealed system, it has built in safety controls: an expansion vessel and relief valves that let water out safely through a discharge pipe if pressure or temperature rises too far. It has to be fitted by a qualified installer.

Need a plumber?

Call 01462 510001Get a quote

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Google Reviews

What Our Customers Say

Rated 5.0 on Google

★★★★★
“Called JLP to fix a leak coming through the ceiling. Jack was very helpful and got a plumber to us very quickly who fixed the problem. Both the plumber and Jack offered advice on what to do next to dry out thr area and offered follow-up if needed.”
RachelPosted on Google
★★★★★
“Excellent service, after being let down by another plumber these guys stepped in big time. Jack and Gary made the process easy and I have no more leaks and they have been a great company to use. If I have anything I need doing in the future I will use them. Highly recommend.”
LauriePosted on Google
★★★★★
“JLP recently changed my kitchen tap in Letchworth, great service. Would highly recommend, reasonably priced aswell!”
Harry, LetchworthPosted on Google

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