• USP Logo Icon
    25 Year Guarantee
  • USP Leaf Icon
    Latest ECO Friendly Technology
  • USP Pointer Icon
    National Coverage
Get a FREE quote
Architect reviewing airtight window design plans

Airtightness in window design: a UK guide for 2026

Airtightness in window design refers to a window’s ability to prevent uncontrolled air leakage between inside and outside environments, and it is one of the most direct influences on energy ...
Homeowner reviewing window frame samples

Tips for choosing windows: a homeowner’s guide

Choosing the right windows is defined by three non-negotiable priorities: energy efficiency, material durability, and a style that suits your property. Whether you are replacing ageing double glazing or specifying ...
Man measuring glass thickness at home kitchen counter

Glass thickness explanation: what you need to know

Glass thickness is the measurement, in millimetres, that determines a pane’s structural strength, safety rating, and suitability for any given application. Whether you are replacing a window at home or ...
Homeowner inspecting fogged old window

Why old windows fail: causes, signs and fixes

Old windows fail primarily because their edge seals deteriorate, allowing moisture to enter the space between panes and destroying the unit’s insulating performance. This process, known in the glazing industry ...
Handyman installing window beading close-up

What is window beading? A homeowner’s guide

Window beading, also known as a glazing bead, is the narrow strip of material that holds window glass securely within its frame while creating an airtight and watertight seal. These ...
Architect reviewing solar control glazing in office

What is solar control glazing? A guide for 2026

Solar control glazing is float glass with a microscopically thin coating that reflects and absorbs solar heat while allowing natural light to pass through, reducing overheating and cutting energy consumption ...
Homeowner inspecting double-glazed window

How to identify window issues in your UK property

Knowing how to identify window issues early is the single most effective way to protect your property from heat loss, water ingress, and costly structural damage. Window faults fall into ...
Homeowner inspecting window hardware in living room

Why window hardware matters for UK homes and businesses

Window hardware is the collection of components, including handles, locks, hinges, and compression seals, that enables your windows to open, close, seal, and secure properly. Understanding why window hardware matters ...
Homeowner inspecting energy efficient window indoors

Best window types for Scotland: 2026 energy guide

The best window types for Scotland are those that meet the whole-window U-value of 1.6 W/m²K or lower, as required by Scottish Building Standards Section 6 from October 2026. This ...
Homeowner examining energy efficient window indoors

Why invest in energy efficient windows: UK guide

Energy efficient windows are defined as glazing systems engineered to minimise heat transfer, reduce air infiltration, and lower the energy demand of a building. For UK home and business owners, ...
ECO friendly glass.

ECO friendly technology

C2C IG (Insulating Glass) considerably reduces the heat lost through the window space. Insulating Glass is up to 3 times more efficient than ordinary window panes and over twice the efficiency of normal double glazing.

Read more

Save Money on your heating bills.

Save money

Did you realise that you lose over 20% of your heat through your glass? After all, your windows are the largest gaps in the building. Stop the heat escaping by replacing failed glass or upgrading to insulated glass.

Read more

Cloudy2Clear installer repairing a window.

About us

Cloudy2Clear UK was founded to fill a void that existed in the market for a company that focused exclusively on the replacement of failed double glazed windows. We were the original and still are the best!

Read more