Hot Water Cylinders

Hot Water Cylinder Installation & Replacement

Modern hot water cylinders are designed to work efficiently with today’s heating systems, including boilers and air source heat pumps.

We install and replace:

• Unvented hot water cylinders

• Vented hot water cylinders

• Cylinders for boiler-fed systems

• Cylinders designed for heat pumps

Every installation is carefully specified to ensure adequate capacity, correct pressure, and safe operation.

Our installations include:

• Assessment of hot water demand

• Correct cylinder sizing and specification

• Removal of old equipment

• Installation and commissioning

• Safety testing and certification

Unvented Hot Water Cylinders

Unvented cylinders provide high-pressure hot water directly from the mains and are ideal for properties with multiple bathrooms or high hot water demand.

We are qualified to install and maintain unvented systems, ensuring:

• Compliance with building regulations

• Correct safety devices and discharge pipework

• Reliable performance and consistent pressure

Safety is critical with unvented cylinders, and all work is carried out by suitably qualified engineers.

Cylinders for Heat Pumps & Low-Temperature Systems

Air source heat pumps require hot water cylinders designed specifically for low-temperature operation.

We supply and install cylinders that:

• Maximise heat pump efficiency

• Deliver reliable hot water performance

• Integrate seamlessly with low-temperature heating systems

Correct cylinder selection is essential for performance, efficiency, and user comfort.

Repairs, Fault Finding & Maintenance

If your hot water system is underperforming or has failed, our engineers can diagnose faults and advise on the most effective solution.

We deal with:

• Loss of hot water

• Pressure or temperature issues

• Faulty immersion heaters

• Leaks or safety valve discharge

• Age-related cylinder failures

Where repair is not viable, we’ll explain replacement options clearly and honestly.

Domestic, Landlord & Development Projects

We carry out hot water cylinder work for:

• Homeowners

• Landlords and letting agents

• HMOs and multi-unit properties

• Renovations and new builds

• Heat pump installations

Whether it’s a simple replacement or part of a wider heating upgrade, we deliver dependable results.

Why Choose Heatworks?

• Qualified and experienced engineers

• Unvented cylinder certified

• Fully insured and compliant installations

• Honest advice and clear communication

• Trusted across Sussex

We install hot water systems properly — with safety, performance, and long-term reliability as the priority.

Speak to a Hot Water Specialist

If you need a hot water cylinder installed, replaced, or repaired, contact Heatworks Plumbing Sussex today. We’ll help you choose the right solution for your property.

Call us or use our contact form to arrange a consultation.