Home
Products
Windows - uPVC
Casement Window
Tilt & Turn Window
Flush Casement Window
Vertical Sliding Window
Residence R7 & R9
Windows - Aluminium
Casement Window
Flush Casement Window
Heritage Style Window
Doors - Composite
Doors - uPVC
Residential Front/Back Single Door
French Doors
Patio Sliding Doors
Stable Doors
Doors - Aluminium
Residential Front/Back Single Door
French Doors
Patio Sliding Doors
Bi-Fold Doors
Heritage Style Doors
Roofs & Lanterns
Warm Roof
Glass Roof
Poli-carbonate Roof
Lantern - Korniche
Flat Skylight
Timber Products
Integral Blinds
Secondary Glazing
Brochures
Door Builder
Depots
Gallery
FAQ’s
How To Guides
About Us
Our History
Testimonials
Local Experts
Careers
Latest News
Get In Touch
Home
>
FAQ’s
FAQ’s
General FAQ’s
What should I consider before I take steps to replace my windows?
What are the benefits of triple glazing?
Installation and compliance
What are building regulation rules for changing widows (FENSA/Certass)?
Do I need FENSA or CERTASS registration to install windows?
What are the ventilation requirements when replacing windows?
Measuring and sizing
How do I measure a window opening correctly?
What is the difference between frame size and aperture size?
How much clearance should I allow when measuring for a replacement window?
How do I measure for a bay window?
What tolerances should I work to when ordering bespoke sizes?
Energy & Ratings
What do the Window Energy Ratings (A++ to E) mean?
What is a U-value and what level should I be targeting?
What is a Whole Window U-value vs a Centre Pane U-value?
What gas fill options are available and how do they affect performance?
What is the difference between BFRC and TRR rating?
What is the g-value of a sealed unit?
Glass and sealed units
Why Have I Got Mist Inside My Sealed Unit?
Safety & Security
How Can I Make a Vulnerable Window More Secure?
Silicone & Sealants
What sealant should I use to fit windows – Alkoxy v’s Oxime
