Triple Glazed vs Double Glazed Skylights: Which to Choose?
When planning your skylight installation, glazing choice is one of the first practical decisions to make. Double and triple glazed units are both high-quality options built for UK homes. Understanding the difference between them in simple terms helps you go into that conversation already knowing what matters to you.
Two Strong Options, Different Strengths
Double glazed skylights consist of two glass panes separated by an insulating layer. They are the most common specification fitted across UK homes and deliver strong, consistent performance for a wide range of property types. Triple glazed units work on the same principle with an additional pane, which raises the insulation level further. Both meet the same safety and build standards. The choice is about matching the right level of performance to your home.
Triple Glazing for Greater Warmth and Comfort
For most homes, double glazing is a well-matched and practical choice. It performs well throughout the year, brings in strong natural light and works across all kinds of spaces from your kitchen extension to open living areas. Well-built double glazed units give you reliable, long-term results without overcomplicating the decision. Most modern UK homes are well served by this specification from day one.
Make Your Home Brighter and More Efficient
Find Out Which Skylight Type is Right for Your Home
Explore Skylights →How Light Levels Compare
Natural light transmission is worth factoring into your decision, particularly if daylight is the main benefit you are looking for. Double glazed units allow slightly more light through due to fewer panes. Triple glazed units are marginally lower on light transmission, though the difference is small enough that you are unlikely to notice it in daily use. If maximising daylight in a specific room matters to you, let us know when discussing your specification.
Thinking About Long-Term Value
Both glazing options are long-term investments that add comfort and value to your property. Triple glazed units comes at a higher price point, which reflects the additional performance they provide. Double glazing offers excellent quality and durability at a more accessible cost. Neither choice is a compromise. The right one is simply the one that fits your home and your priorities. Both options are widely available across our flat roof skylight and roof lanterns range, covering a variety of sizes and specifications.
Taking Final Decision with Expert Opinion
Every home is different and your glazing choice works best when it is matched to the specific conditions of your property. Our team will assess your roof, the room below, the surrounding structure and how you use the space before giving you a clear recommendation. That removes any uncertainty from the process and gives you confidence that the specification is right. Getting our input at this stage is the most reliable way to make the right call for your home.
For advice on rooflight glazing options suited to your home, visit Rooflights and Skylights UK.