Our Services

Hot Water Cylinder Installations

Reliable Hot Water, Professionally Installed

At Sterling Energy Ltd, we supply and install both vented and unvented hot water cylinders, giving you a constant, efficient supply of hot water tailored to your household’s needs. As G3-certified engineers, we are fully qualified to install, replace, or upgrade hot water cylinders safely and legally, meeting all Building Regulations and compliance standards.

What’s the Difference Between Vented and Unvented Cylinders?

Choosing the right cylinder depends on your home’s water pressure, layout, and hot water demand. We’ll guide you through the options—but here’s a quick overview:

Unvented Hot Water Cylinders

High Pressure, Mains-Fed Performance.

Unvented systems take water directly from the mains, providing strong flow rates and consistent pressure—even in multiple bathrooms.

No need for a loft tank
Great pressure at taps and showers
Sealed system—less risk of contamination
Can be installed almost anywhere in the home
Perfect for modern homes and larger families

Ideal if you want powerful hot water across multiple outlets at the same time.

Vented Hot Water Cylinders

Traditional, Gravity-Fed Systems.

Vented systems use a cold water tank (usually in the loft) that feeds water to the hot water cylinder.

Simple, reliable system
Less expensive to install and maintain
Works well in homes with older plumbing
Doesn’t require high water pressure from the mains

A good choice for homes with existing gravity-fed systems or where mains pressure is low.

Our Hot Water Cylinder Installation Process

1.

Initial Contact & Consultation: We’ll listen to your requirements, discuss your current setup, and recommend the right cylinder system for your home.
2.

Free Home Survey: A qualified engineer will visit your property to inspect your heating system, water pressure, and space available.
3.

Fixed, Transparent Quote: You’ll receive a clear, fixed-price quote—no hidden charges, just honest advice.
4.
Expert Installation: Our G3-certified engineers install your cylinder safely and to the highest standard. We’ll also take care of:
- Pressure testing
- Safety valves
- Expansion vessels (for unvented)
- Benchmark certification
- Building Regulations compliance and notification

Why Choose Sterling Energy?

G3 Certified – legally qualified to install unvented cylinders

Fully insured and experienced

Advice tailored to your home and usage

Clean, tidy and respectful work

Friendly, local experts who do the job right

Peace of mind with full compliance and documentation

Book Your Free Site Survey

Whether you’re replacing a faulty tank or upgrading your hot water system, Sterling Energy Ltd is here to help. Let’s get you the perfect hot water solution—efficient, legal, and built to last.

Get a Free Quote