Lower energy bills
A-rated sealed units trap heat inside, so your home stays warmer for longer and your heating works less hard — kinder to your wallet and the planet.
A-rated double glazing for a warmer, quieter home
Cut your energy bills, shut out the noise and boost your security with high-performance double glazing — supplied and fitted across London, Essex and Kent.
Less noise
Sealed double-glazed units dramatically reduce traffic and street noise — a noticeably calmer, more peaceful home, even on busier main roads.
Better security
Toughened glass and multi-point locking make double-glazed windows and doors far harder to force — real peace of mind for your family.
Why upgrade
Old, draughty or misted-up glazing? It's costing you
If your windows rattle, let in draughts, or you can see condensation between the panes, the seals have failed and you're losing heat (and money) every day. Upgrading to modern A-rated double glazing is one of the most effective improvements you can make to any older home.
- Energy-efficient, A-rated sealed units
- Warm-edge spacer bars to reduce condensation
- Toughened & obscure glass options
- FENSA certificate confirming Building-Reg compliance
How it works
What makes glazing "A-rated"?
A modern sealed unit is two (or three) panes of glass separated by a spacer bar and filled with an inert gas such as argon. A microscopically-thin low-emissivity (low-E) coating reflects heat back into the room, while a warm-edge spacer cuts cold-bridging around the edges. Together they earn the unit its Window Energy Rating — and the best are rated A or above.
- Two panes with an argon-filled cavity
- Low-E coating reflects heat indoors
- Warm-edge spacer reduces condensation
- A-rated as standard — A+ available
Glass options
Spec the right glass for every room
Toughened safety glass
Up to five times stronger and breaks safely — required by law in doors, low-level and large panes.
Obscure & privacy
A range of patterns and frosting for bathrooms, front doors and overlooked windows.
Acoustic glass
Laminated panes that noticeably cut traffic and street noise on busier roads.
Low-E & solar control
Keeps heat in during winter and reduces overheating from strong summer sun.
Georgian & astragal bars
Traditional bar patterns — within the unit or on the glass — for period homes.
Self-cleaning glass
A special coating that breaks down dirt in daylight and rinses clean in the rain.
See how much warmer your home could be
Book a free, no-obligation survey and quote with your local FENSA-registered team.