Reliable Plumbing

Hot Water Cylinder Repair & Installation in Hull & Surrounding Areas

At FlowMarsters Plumbing & Heating, we specialise in hot water cylinder repairs, replacements and new installations.

Whether your cylinder is leaking, not heating properly, or you need a completely new setup, we offer fast, reliable service across Hull and the surrounding areas.

We repair and install both vented and unvented (pressurised) cylinders.

✔ Hot Water Cylinder Repairs

We repair all types of cylinder faults, including:

Common Cylinder Problems We Fix

• Leaking cylinder
• No hot water
• Hot water running out quickly
• Cylinder overheating
• Pressure issues
• Temperature & pressure relief valve faults
• Immersion heater faults
• Thermostat not working
• Noise from cylinder or pipework
• Slow recovery time
• Expansion vessel issues (unvented cylinders)

If it can be repaired safely, we’ll fix it.

If repair isn’t cost-effective, we’ll give you clear advice on replacement options.

✔ Unvented (Pressurised) Cylinder Repairs

Qualified engineer for G3 unvented systems.

We can repair:

• Expansion vessels
• Pressure reducing valves
• Tundish discharge issues
• Safety valves
• Pressure and temperature valves
• Immersion heaters
• Thermostats and elements

All work completed to G3 Building Regulations.

✔ Hot Water Cylinder Installation

If your cylinder is old, damaged or undersized, we can supply and install a brand-new cylinder.

What’s Included in a New Cylinder Install

• Free home survey
• Removal & disposal of old cylinder
• Installation of new vented or unvented cylinder
• New pipework & valves where required
• Expansion vessel (unvented)
• Safety discharge pipework to regulations
• Electrical connection of immersion heaters
• Filling, testing & commissioning
• Paperwork, notifications & warranty registration

Types of Cylinders We Install

Unvented Cylinders (Megaflo-style)

• High water pressure
• Mains-fed
• Ideal for multiple bathrooms
• Faster recovery time

Vented Cylinders

• Traditional gravity-fed system
• Good for older properties
• Cost-effective replacements

Direct Cylinders

• Heated only by immersion heaters
• Often used where no boiler is present

Indirect Cylinders

• Heated by boiler AND immersion heaters
• Most common type in modern homes

We’ll advise which type suits your home best.

Benefits of a New Hot Water Cylinder

• Better hot water pressure
• Faster heat-up time
• Improved efficiency
• More reliable supply
• Safer & up to modern standards
• Reduced running costs
• Larger capacity options for growing families

Areas We Cover

We repair and install hot water cylinders across:

• Hull (HU1–HU9)
• Beverley
• Cottingham
• Hessle
• Willerby & Kirk Ella
• Anlaby & Anlaby Common
• Swanland
• Surrounding villages

Pricing

Prices depend on:

• Cylinder type (vented/unvented)
• Size (e.g., 120L, 180L, 210L, 300L)
• Location of cylinder
• Amount of work required
• Parts needed

We provide clear, fixed quotes before any work begins.

Send a photo via WhatsApp for a quick estimate.

Why Choose FlowMarsters Plumbing & Heating?

• Qualified for G3 unvented systems
• Experienced with repairs and installations
• Honest advice — repair first where possible
• Clear pricing with no hidden charges
• Fast response times
• Reliable, friendly and fully insured

Book Your Cylinder Repair or Installation