Gas Boilers

We install energy-efficient gas boilers in households across Scotland. We provide trusted guidance on available grants, clear and transparent pricing, and a hassle-free installation carried out by our expert engineers.

Choose from our range of modern, energy-efficient gas boilers

Reliable performance, lower energy bills and smarter home heating from £2,400

  • Essential Solution
  • Advanced Solution
  • Signature Solution

Essential Solution

Glow-Worm Ultimate₃ 35KW

  • Provides heating and hot water without the need for a cylinder or tank to store water
  • High domestic flow rate to ensure reliable performance
  • Includes ESI Control & Glow-Worm Filter
  • 10-Year Warranty
  • From £2,600

Go energy efficient with Herofix

4 simple steps towards lowering your bills

1Home

Tell us about your home

Tell us where you live and what you need, whether it be a replacement boiler or to find out about available grants or incentives available to your home.

2Pencil

Survey & system design

Our specialists will review your property, explain available grants and suggest the best energy efficient boiler for your home.

3Dataflow

Professional installation

Our certified installers handle everything from equipment supply to installation and system setup at a time that suits you.

4Piggy Bank

Start saving

Once installed, your brand new boiler will be running efficiently, helping you reduce your energy bills and power your home more sustainably.

Upgrade your home with an energy-efficient Gas Boiler

Make the switch to a modern, energy-efficient gas boiler and take control of your home’s heating costs. A growing number of UK homeowners are upgrading their boilers to improve efficiency, reduce energy waste, and stay warm for less.

With a professionally installed boiler, many households can save hundreds of pounds each year on energy bills thanks to improved performance and reduced fuel consumption. You may also be eligible for government grants or support schemes that help lower the upfront cost of upgrading your system.

A new boiler doesn’t just benefit your wallet, it also benefits the environment. By using less energy to heat your home, you can significantly reduce your carbon emissions while enjoying consistent, reliable warmth.

Discover how a modern gas boiler could transform your home with Herofix.

Request your free, no-obligation quote today.

Energy efficient installations to be proud of

Real customers, real reviews

Reduce your energy bill with an energy efficient boiler

As Scotland moves towards net zero, more homeowners are choosing energy efficient upgrades to take control of their energy costs. Herofix® makes the process simple.

We combine expert advice, trusted installers, and clear guidance on grants and funding, so you can choose the best boiler option for you with confidence and start saving from day one.

Available grants for boiler upgrades

The Scottish Government provide up to £7,500 grants or interest-free loans for many households looking to go more energy efficient. We can help you find out what you’re eligible for.

Available grants for boiler upgrades

Your Home Energy Hero

net-zero ready?

As Scotland moves towards net zero, more homeowners are choosing to upgrade their boiler and take control of their energy costs. Herofix makes the transition simple.

We combine expert advice, trusted installers, and clear guidance on grants and funding, so you can go greener with confidence and start saving from day one.

Discover Home Energy Solutions

Take control and lower your bills today

Air Source Heat Pump FAQ's

A new gas boiler installation with Herofix starts from £2,400, with costs varying depending on the boiler type, property size, and whether any pipework or system upgrades are required. Herofix offers clear, transparent pricing with no hidden fees, and can advise on any government grants or interest-free financing options that may reduce your upfront cost.

Herofix installs a range of modern, A-rated condensing gas boilers — including combi, system, and heat-only (regular) models — from trusted brands such as Ideal, Baxi, Vaillant, Worcester Bosch, Viessmann, Alpha, and Bosch. During your free survey, a Herofix specialist will recommend the most efficient boiler type for your home size, water usage, and existing heating system.

In most cases, a gas boiler replacement in Scotland can be completed in a single day by a Herofix Gas Safe registered engineer. More complex installations — such as those requiring pipework changes or system upgrades — may take longer. Your Herofix installer will give you a clear timeline before work begins.

The Scottish Government offers grants and interest-free loans of up to £7,500 for eligible households looking to improve their home's energy efficiency. Herofix will assess your eligibility and guide you through the available funding options, including the Warmer Homes Scotland scheme, to help reduce the cost of your boiler upgrade.

Gas boilers are not being banned in existing Scottish homes. While the UK Government is gradually moving away from gas heating for new-build properties, existing homeowners can still install and use gas boilers. A modern, A-rated condensing boiler remains one of the most cost-effective and practical heating solutions for homes already connected to the gas grid.

You should consider replacing your boiler if it is more than 10–15 years old, your energy bills have been rising, it breaks down regularly, or it struggles to heat your home consistently. Older boilers can operate at as low as 70–80% efficiency — meaning significant wasted energy. A Herofix survey will assess your current system and help you decide whether a replacement makes financial sense.