Most of us lock the front door without a second thought — but how much thought have you given to the glass in your windows? In the UK, police data consistently shows that windows and doors are the primary entry points for opportunistic burglars. The frame can be rock-solid, the locks can be top-grade, but if the glazing shatters at the first tap of a screwdriver the whole system fails. That’s why understanding your glazing options isn’t a technical nicety — it’s the difference between a home that’s genuinely secure and one that merely looks the part.
At Durajoin, every replacement windows order we process is specified for security from the outset. This guide decodes the main glazing types, explains the UK standards that matter, and helps you choose secure windows for home use with total confidence.
The Glass Types — Decoded
Standard Float Glass (Annealed)
This is ordinary glass — the stuff found in old single-glazed windows. It breaks easily into large, dangerous shards and offers virtually zero resistance to forced entry. If your home still has single-glazed sash windows or older casement windows with float glass, they’re a serious weak point. Upgrading is one of the strongest reasons behind the flood of UK searches for replacement windows, window replacement, and window glass replacement.
Toughened (Tempered) Glass
Toughened glass windows are heat-treated to be around four to five times stronger than standard glass. When they do break, they shatter into small, relatively safe cubes rather than jagged shards — which is why building regulations require them in “critical locations” like low-level panels and glass beside doors. Toughened glass resists accidental impacts well, but it can still be defeated quickly by a determined intruder using a sharp, pointed tool. It’s a safety glass, not a security glass (The Crime Prevention Website).
Laminated Glass
Laminated glass windows are the real game-changer for home security. Two (or more) sheets of glass are bonded together with a tough PVB (polyvinyl butyral) interlayer. When struck, the glass cracks but the interlayer holds everything together — much like a car windscreen after an impact. An intruder can’t simply punch a hole and reach through to the handle. The standard domestic specification is 6.4 mm laminated glass, which meets BS EN 356 Class P1A and is the minimum recommended for any easily accessible window or door (Secured by Design). Durajoin specifies laminated glass as standard on all ground-floor and accessible glazing.
PAS 24 Certified Glazing (within a complete unit)
PAS 24 isn’t a glass type — it’s a whole-unit security test. The frame, hardware, locks, hinges, and glazing are all tested together under simulated break-in conditions. A product either passes or fails; there’s no sliding scale. Under Part Q of UK building regulations, all easily accessible windows and doors in new builds must be PAS 24 certified. Durajoin’s PAS 24 windows and Secured by Design windows meet or exceed this standard across every frame material and style (Eurocell).
Beyond the Glass: Locks, Frames, and the Complete Picture
The best laminated glass in the world won’t help if the frame can be levered apart or the handle snapped off. That’s why Durajoin takes a whole-unit approach — every window is specified as a system. Our security range includes multi-point window locks, sash window locks, burglar proof windows hardware, window security film options, window restrictors child safety devices, and window sensor alarm integration. Frames are available in uPVC windows (reinforced with steel or aluminium internals), aluminium windows (inherently strong and warp-resistant), timber windows, wooden windows, composite windows, aluminium clad timber windows, slim frame aluminium windows, steel windows, Crittall style windows, heritage windows, and wood effect uPVC windows. Every material can achieve PAS 24 when paired with the right glazing and hardware.
Energy Efficiency: Security's Silent Partner
Here’s something that surprises many homeowners: upgrading for security almost always improves energy efficiency too. Laminated glass within a modern double glazed windows or triple glazed windows unit — combined with Low-E glass windows, argon gas filled windows, and warm edge spacer bars — delivers outstanding thermal performance alongside its security benefits. According to the Energy Saving Trust, windows account for up to 25 % of a home’s heat loss. Durajoin specifies energy efficient windows with A rated windows performance as standard, and we’ll explain window U-values explained, window energy rating explained, solar heat gain coefficient windows, what is a window energy rating, double glazing vs triple glazing, secondary glazing vs double glazing, secondary glazing cost, best windows for insulation, and Part L building regulations glazing so you maximise both protection and savings.
Sound, Style, and Smart Technology
Laminated acoustic glass doubles as noise reduction — its PVB interlayer dampens sound waves as well as holding glass fragments together. Ask Durajoin about soundproof windows, noise reducing windows, acoustic glazing, secondary glazing for noise, triple glazing noise reduction, dB rating windows, best windows for noise reduction, and windows for busy road specs.
For style, Durajoin fits every window type: casement windows, sash windows, sliding sash windows, tilt and turn windows, bay windows, bow windows, picture windows, awning windows, hopper windows, sliding windows, skylight windows, roof windows, dormer windows, lantern roof windows, fixed windows, arched windows, circular windows, clerestory windows, oriel windows, porthole windows, corner windows, floor to ceiling windows, Georgian bar windows, astragal bar windows, leaded windows, stained glass windows, flush casement windows, Juliet balcony window, decorative window glass, obscure glass bathroom window, frosted window glass, cottage style windows, period style windows, modern window design, and traditional window design. Colour options span anthracite grey windows, black window frames, white uPVC windows, coloured window frames, dual colour windows, RAL colour windows, wood effect uPVC windows, best window colours 2025, chamfered vs sculptured windows, window handle styles, and full window colour options. Smart extras include self cleaning glass windows, electric opening windows, smart window blinds, integrated blinds in glazing, rain sensor windows, electrochromic smart glass, and solar control glass.
Durajoin caters to every room and scenario: bathroom windows ventilation, kitchen window ideas, loft conversion windows, extension windows, conservatory replacement windows, garage conversion windows, office window replacement, basement windows egress, windows for listed buildings, windows for period properties, windows for coastal homes, new build windows, and retrofit windows older house projects.
Kerb Appeal, Property Value, and the Colours That Sell
Security upgrades add real resale value. Research covering over 1,000 UK property listings found that a blue front door can add up to £4,000 to a home’s value, red around £1,800, and black approximately £1,000 (London Door Company). Properties with red, grey, and black doors consistently sell at the highest average prices (Chancellors). Timeless neutrals — white, black, and slate grey — appeal to the broadest buyer pool (Zoopla). Pair coordinated secure windows with a well-chosen front door and your kerb appeal front door impression soars. New windows can add 5–10 % to a UK property’s value — a potential £5,000 to £15,000 uplift (SEH BAC). That’s why do new windows add value to house, increase home value with new windows, EPC rating improve with new windows, and energy performance certificate windows are so popular.
Doors, Windows, and the Whole-House Shield
A secure window is only as strong as the weakest opening in your home. Durajoin supplies doors and windows as a complete security package: energy efficient doors and windows, uPVC doors and windows, aluminium doors and windows, timber doors and windows, and Secured by Design doors and windows. Searching for new doors and windows for house, new windows for house, doors and windows prices, a doors and windows package deal, doors and windows finance, doors and windows for new build, doors and windows for extension, replace all doors and windows cost, doors and windows near me, or best doors and windows company UK? Durajoin delivers matching doors and windows with consistent PAS 24 security throughout — because one weak link undoes the whole chain. Whether it’s a home renovation doors and windows refresh or a broader spring home improvement project, Durajoin ensures every entry point is covered.
Regulations, Guarantees, and Compliance
Every window replacement in England and Wales must satisfy building regulations for windows, Part L windows building regulations, Part Q security doors windows, and building regulations doors and windows. Durajoin ensures full compliance — FENSA registered window installer, CERTASS window installer, FENSA registration check, CERTASS vs FENSA guidance, building control sign off windows, scaffold for window installation, window installation checklist precision, and every certificate (what certificates do I get with new windows, FENSA certificate lost replacements). For do I need planning permission for new windows, conservation area replacement windows rules, conservation area window rules, listed building window replacement, do bay windows need planning permission, escape windows building regs, permitted development doors windows, minimum window size building regulations, window to wall ratio building regs, bay window structural support, and window lintel requirements — Durajoin manages it all.
Durajoin provides double glazing warranty, insurance backed guarantee windows, and clear answers on window guarantee how long, what does window guarantee cover, and window warranty transferable new owner. We handle sizing (standard window sizes UK, bay window dimensions, bespoke windows, custom size windows, non standard window sizes) and maintenance queries too: how to fix misted double glazing, how to fix a window that won’t close, how to clean uPVC window frames, window seal replacement, window hinge replacement, window handle replacement, sash window repair, sash window draught proofing, wooden window restoration, resealing windows, replace glass or whole window, emergency window repair, condensation between window panes, window condensation causes, why are my new windows misty, why is there condensation inside my windows, will new windows stop condensation, do trickle vents have to be open, and trickle vents explained.
FAQs Durajoin Answers Every Week
Are triple glazed windows worth it for security?
Triple glazing adds an extra barrier, but laminated glass is the single most important security upgrade — available in both double and triple configurations.
Can I replace one window at a time?
Yes — Durajoin recommends starting with ground-floor and easily accessible windows first.
How long to install new windows?
Most rooms take a single day.
Can I change window colour without replacing?
Spraying is possible, but full replacement delivers PAS 24 security you can’t retrofit.
Are aluminium windows cold in winter?
Not with modern thermal-break profiles — and they’re inherently strong for security.
What to look for when buying windows?
PAS 24 certification, laminated glass, multi-point locks, BFRC energy rating, and a solid warranty.
What is a window energy rating?
PAS 24 certification, laminated glass, multi-point locks, BFRC energy rating, and a solid warranty.
How to measure for replacement windows?
Durajoin sends a surveyor — free of charge.
How to choose the right windows for my house?
Book a free Durajoin home survey — we assess every opening for security risk, thermal performance, and style.
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Protect What Matters. Choose Glazing That Fights Back.
Get a free, no-obligation security assessment and quote from Durajoin — the UK’s trusted window and door specialists.
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