Skip to content

Windows, Doors & Ironmongery · Accessories & Add-ons

Window Hardware & Fittings: What Else You'll Need

By the Nest & Yard editorial teamUpdated 2026-08-093 min read

Our pick: the Lifetree Reflective One Way Window Film, Silver-Silver, 44.5 x 200cm, Mirror Heat Reflector Sun Blocker, UV Anti-Glare, No Glue Daytime Privacy — the best Window Hardware & Fittings we tested, from £6.79.

Installing new window hardware and fittings is a fantastic way to improve your home’s security and appearance, but it's easy to overlook the extra accessories that can make the process smoother and ensure a lasting fit. Alongside your main purchases, you’ll often find yourself needing cables, mounts, protective cases, and replacement parts – items frequently forgotten about until they’re actually required. This guide explores the common window hardware and fittings add-ons available on Amazon UK, covering everything from privacy films to locking mechanisms and protective solutions for keeping your investment safe.

See the full range in Window Hardware & Fittings.

Pros

  • Reflective silver finish blocks strong sun and cuts glare during heatwaves
  • No-glue static cling means no residue when removed at the end of summer
  • Huge review base gives strong confidence in real-world performance

Cons

  • Mirror effect reverses at night, so curtains or blinds are still needed for privacy after dark
View on Amazon →
Home Secure UPVC Universal Espag Window Handle, Key Locking, For Double Glazing, White
Best Budget

#2 Pick

Home Secure UPVC Universal Espag Window Handle, Key Locking, For Double Glazing, White
Rated 4.5 out of 5 stars (4,857)
  • Aluminium

£3.25

Pros

  • Nearly 5,000 reviews make it one of the best-selling espag handles on Amazon UK
  • Key locking function adds extra security to uPVC windows
  • Universal spindle fit works across most double glazed window brands

Cons

  • Very budget price point means the spindle may need trimming to length
View on Amazon →

Pros

  • Frosted stripe pattern gives bathroom-style privacy while still letting light through
  • Strong 4.4-star rating across nearly 5,000 reviews
  • Static cling fitting is renter-friendly and fully repositionable

Cons

  • Decorative stripe pattern will not suit every window style or frame colour
View on Amazon →
UPVC Universal Inline Espag Lockable Window Handle, Smart Spindle, White
Best Value

#4 Pick

UPVC Universal Inline Espag Lockable Window Handle, Smart Spindle, White
Rated 4.6 out of 5 stars (3,300)
  • uPVC

£8.65

Pros

  • Smart spindle adjusts to fit multiple spindle lengths without cutting
  • One of the highest review counts among espag window handles
  • Lockable for added security on ground floor windows

Cons

  • Smart spindle mechanism is fiddlier to set up than a fixed spindle
View on Amazon →

FAQ

I've just bought some window hinges – what should I be looking for in terms of the included hardware?

Most hinge kits will include screws for attaching them to the sash and frame, but you’ll almost certainly need longer screws for securing the hinges into the wall. It’s also wise to have a small selection of wood filler on hand to fill any screw holes before applying sealant.

My window box doesn't seem to include a draught excluder; why is this and what should I do?

Window boxes often omit draught excluders as they are frequently purchased separately, offering a more tailored fit for the window’s specific size. You can typically find foam or rubber draught excluders in various thicknesses at hardware stores, ensuring a tighter seal.

What kind of sealant should I use to prevent drafts around my windows?

Silicone sealant is generally recommended for sealing gaps around window frames due to its flexibility and weather resistance. Ensure you choose a sealant specifically designed for exterior use to withstand the elements effectively.

I’ve purchased some window handles – will I need any specific tools for installation?

You'll likely require a small screwdriver set, ideally including both Phillips head and flathead options, to properly tighten the handle screws. A tape measure is also useful for accurately positioning the handles before securing them.

My new window catches didn’t come with any clips – are these essential?

Yes, clips are crucial for securely holding the catch in place and preventing it from loosening over time. Look for plastic or metal clips designed specifically to complement your window catch type.

What's the purpose of a sash cord adjuster? Do I need one?

Sash cords control the opening and closing of sliding sash windows, and an adjuster allows you to fine-tune their tension. If your sash is difficult to raise or lower smoothly, a cord adjuster can significantly improve its operation.

I’ve bought some window locks – what size screws should I be using?

The supplied screws for window locks typically require drilling pilot holes in the frame to prevent splitting; ensure you use a drill bit appropriate for the material of your window frame (wood, metal, or uPVC).

My window stays didn’t include any felt pads – why are these useful?

Felt pads placed on the bottom edges of windows and sashes prevent scratching the window sill and flooring when the window is opened or closed. They're a simple but effective way to protect your surfaces.

What if my new window hardware doesn’t fit perfectly – can I adjust the screw sizes?

While some adjustments might be possible, altering screw sizes significantly could compromise the structural integrity of the hardware. Consult with a professional for significant discrepancies or potential damage.

I've installed all my window hardware; where can I find information about manufacturer warranties?

Warranty details are typically provided by the individual hardware manufacturer, not the retailer. Check the product packaging and accompanying documentation for specific warranty terms and conditions offered by the brand.

In depth

Let’s begin by acknowledging that the initial purchase of windows – be they sash, casement, or tilt-turn – represents a significant investment. However, the true cost extends far beyond the frame itself. A comprehensive window installation demands a range of ancillary items and specialist fittings, often overlooked in early estimates. Understanding these supplementary requirements is crucial for ensuring a smooth, successful project and avoiding costly delays or unexpected expenses.

First, consider the realm of sealing and weatherproofing. While some initial sealant may be included with the window itself, particularly for smaller installations, larger projects invariably require a substantial quantity of high-quality silicone and polyurethane sealants. These are essential for creating airtight seals around the entire perimeter – both internally and externally – preventing drafts and minimising heat loss or gain. Factor in appropriate sealant guns and applicators too; having the right tools makes all the difference to achieving a professional, weatherproof finish. Don’t forget flashing tape designed to direct water away from vulnerable areas like brickwork joints.

Next, let's address the critical area of glazing beads and rebates. Window installation necessitates precise detailing within the frame itself to ensure that the glass sits correctly and is adequately sealed. Glazing beads – often made of softwood or PVC – are used to hold the glass in place within the rebate, providing a secure and weatherproof fit. The depth and type of rebate will dictate the specific bead required; it’s vital to assess this carefully during the initial survey. Furthermore, you'll likely need glazing tape – typically polyurethane – to further seal the gap between the glass and the rebate, preventing water ingress and improving thermal performance.

Then there’s the issue of draught stoppers and weather stripping. Even with meticulous sealing, air leakage can still occur through gaps around the window frame or beneath the sill. High-quality draught stoppers – typically made from wool or felt – are vital for blocking drafts in multi-room properties, while smaller foam or rubber weather strips can be applied to the lower edge of the window and the sash itself to minimize air movement. The choice will depend on the type of window and the level of insulation required.

Don’t overlook the importance of ancillary hardware – particularly if you're installing windows with complex mechanisms. Casement windows, for instance, require adjustable casement stays and locking mechanisms, often supplied as separate kits. Similarly, tilt-turn windows necessitate appropriate handles and operating mechanisms. Consider the longevity of these components; investing in durable, high-quality fittings will significantly reduce the risk of future repairs or replacements.

Finally, consider the more general tools and accessories that are essential for a successful window installation. These include, but aren’t limited to: specialist glazing spacers (often polyurethane) which maintain consistent gaps between glass panels; spirit levels for ensuring accurate alignment; measuring tapes and marking tools; plus appropriate safety equipment such as gloves and eye protection. It's prudent to create a detailed list of all required items before commencing any work to avoid costly last-minute additions to the budget.

The Nest & Yard editorial team

Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.

How we choose products