Welcome to CUS.NET

CUS.NET has been helping home owners to improve their homes since 2002.

Whether your primary concern is reducing your household bills, making your home more energy efficient or secure, reducing your carbon footprint or even just learning more about renewable energy technology – we have articles that will help you to achieve these and much more.

Please take a look at the most popular sections below, or see the full site menu for all our articles. We hope that our information and DIY guides make your life easier and your bills smaller!


One of the easiest and cheapest ways to add extra space to your home, but there are no shortage of pitfalls. We’ve put together probably the most comprehensive guide you’ll find.

Central Heating Boilers

Are you having trouble with your boiler or are your energy bills sky-high? Are you looking to replace your boiler with a modern energy-efficient unit? Whatever you’re looking for, cus.net can help.

Insulating Your Home

We have numerous articles on how to make your home more energy efficient – whether it be loft insulation, draught-proofing or the many simple  DIY methods of reducing your utility bills with very little effort.

Double Glazing

Around 60% of domestic heat loss takes place through the windows in your home – learn more about how double glazing works, how it can slash your heating costs and increase home security as well as cutting noise.

Home Energy Efficiency

With electricity costs increasing all the time, we can help you to make your home significantly more energy efficient, helping you to save money on utility bills.

Home Security

Find out how to secure your home against intruders and how to make it a less attractive target for burglars in the first place with our handy guides on all aspects of home security.

Smart Meters

Smart metering is becoming more mainstream – find out how you can harness the latest technology to monitor and reduce your home energy consumption.

Renewable Energy

Want to know more about renewable energy sources, such as wind, solar, biomass? Find out more about these and how you can use green power in your home.


Broadband, digital television and mobile phone deals can be a technological minefield without the right information. If you want to know more about any of these then this area is for you.