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Mini Magflap® Magnetic Keyhole Cover (34mm)

Mini Magflap® Magnetic Keyhole Cover (34mm)

Will it fit? Specs, fitting & add-ons

✅ Brushless Magnetic Seal – Eliminates keyhole draughts with a silent, durable magnetic flap

✅ Ultra-Slim Design – Minimal profile for a clean, modern look that suits any door aesthetic

✅ No Bristles, No Noise – Uses precision magnets, not brushes, for smooth and silent operation

✅ Prevents Heat Loss – Blocks airflow from inside the keyhole, improving energy efficiency

✅ Universal Fit – Compatible with standard UK euro-cylinder keyholes

✅ DIY Friendly – Easy to fit with included adhesive backing or screws (optional)

✅ Anti-Rust & Weatherproof – Built to withstand daily use and outdoor exposure

✅ 99% Recyclable Construction – Made with sustainable materials

✅ Made in the UK – Handmade and tested by Magman for long-lasting performance

Color: Black
Regular price £20.95 GBP
Regular price Sale price £20.95 GBP
Sale Sold out
Taxes included. UK delivery £2 by Royal Mail Tracked 48. International delivery calculated at checkout.
Will it fit your door? Sizes, bolts and a free print-out template
  • Keyhole: 34mm cover for mortice lock keyholes (not Yale-type cylinder locks)
  • Fitting: stick on in about 2 minutes, or screw-fix for a permanent fit

Print the free full-size fit template (A4, print at actual size). Hold it on the inside of your door and it shows exactly what fits and what doesn't.

Not sure? Email a photo of your letterbox to info@magman.uk and we'll tell you what you need.

What's in the box: the Mini Magflap, fixing screws and fitting instructions.

UK delivery £2 by Royal Mail Tracked 48, or Express £4 (1–2 working days). Order by 4pm Monday to Saturday for same-day dispatch. Free 30-day returns.

  • Family Owned
  • Free Returns
  • Fast Postage

A 34mm magnetic keyhole cover for mortice lock keyholes. The magnetic disc opens for your key and self-closes after, sealing the keyhole against draughts silently, with no springs. All-metal with a cork gasket, hand-assembled in Leicester, UK since 2009.

  • Fits: mortice lock keyholes (lever handle locks and mortice deadlocks) with an escutcheon of 34mm or smaller, about the size of a £2 coin. Mortice keyholes only. Timber, uPVC and composite doors, inside or outside.
  • Fitting: stick-on (no tools, under 2 minutes) or screw-fix (one central screw, under 5 minutes). Both are included.
  • Size: 34mm diameter, 7mm thick.
  • Finishes (11): Black, White, Chrome, Nickel, Steel, Copper, Solid Brushed Brass, Weathered Wood, Golden Oak, Ash and Walnut.
  • In the box: the Mini Magflap in your finish, self-adhesive backing (pre-applied), 1 mounting screw, cork gasket (pre-installed), installation instructions.
  • Warranty: 1-year manufacturer guarantee.

About the Mini Magflap

Stop Keyhole Draughts & Heat Loss - 34mm Magnetic Cover for Mortice Lock Keyholes

An unsealed keyhole is a hidden source of cold draughts, heat loss, and noise infiltration in your home. The Mini Magflap by Magman is a 34mm diameter magnetic keyhole cover that creates a draught-proof seal over mortice lock keyholes, preventing warm air escape and cold air entry. Unlike traditional swinging escutcheon covers that rattle and leave gaps, or keyhole brushes that wear out within months, the Mini Magflap's precision magnetic seal self-closes after key use - keeping your keyhole covered year-round with zero maintenance.

Designed and manufactured in Leicester, UK since 2009, the Mini Magflap features all-metal construction with cork gasket sealing for long-lasting durability. Choose between stick-on installation (tool-free, 2 minutes) or screw-fix mounting (permanent security). Available in 11 finishes (Black, White, Chrome, Nickel, Steel, Copper, Solid Brushed Brass, Weathered Wood, Golden Oak, Ash and Walnut) to match your existing door furniture. Low-profile 7mm thickness sits flush - won't interfere with key operation. Patent-pending magnetic closure mechanism registered with UK Intellectual Property Office.

Why Choose Mini Magflap Over Traditional Keyhole Covers?

Magnetic Seal Technology - Silent, Draught-Proof Closure

Traditional keyhole covers use swinging metal escutcheons with springs that weaken over time, creating gaps that allow draughts through. The springs click and clatter loudly every time you insert your key - disturbing noise throughout the day. The Mini Magflap uses precision-balanced neodymium magnets to create a gentle, silent seal. The magnetic disc opens easily for key insertion and self-closes automatically without noise or springs. Perfectly balanced magnetic force ensures easy key operation while maintaining complete draught-proof seal when not in use.

All-Metal Construction - Built to Outlast Plastic

Cheap plastic keyhole escutcheons crack in cold weather, adhesive fails within months, and thin construction allows heat transfer. The Mini Magflap is crafted from durable metal with cork gasket sealing - materials that stand up to daily key use. Our customers report original units still working perfectly after 10+ years. Investment in quality means you buy once, not repeatedly replacing failed plastic covers every winter.

34mm Universal Fit - Works With Most UK Mortice Lock Keyholes

The Mini Magflap's 34mm diameter fits standard mortice lock keyholes found on timber doors, uPVC doors, and composite doors throughout the UK. Compatible with lever handle mortice locks and traditional mortice deadlocks. The 34mm size is approximately the diameter of a £2 coin - easy to visualize for fitment checking. Measure your existing keyhole escutcheon before ordering: if it's 34mm or smaller, Mini Magflap will fit perfectly.

Dual Installation Options - Stick-On or Screw-Fix (Your Choice)

- Stick-On Method: Self-adhesive backing allows tool-free installation in under 2 minutes. Simply clean the door surface, peel the backing, and press firmly for 30 seconds. Perfect for rental properties where screw holes aren't permitted, or for quick installation without tools. Works on internal OR external door faces.

Screw-Fix Method: For permanent security or situations where adhesive may fail (high-traffic doors, external weather exposure), screw-fix option included. One central screw secures the Mini Magflap permanently - no risk of adhesive failure. Requires Phillips screwdriver only.

Both installation methods included with every Mini Magflap - choose the approach that suits your door and situation.

Multiple Premium Finishes - Match Your Door Furniture

Available in 11 finishes to coordinate with your existing door handles, letterbox and hardware:
- Metal finishes: Black, White, Chrome, Nickel, Steel, Copper and Solid Brushed Brass
- Wood tones: Weathered Wood, Golden Oak, Ash and Walnut

Choose finish to match or complement your existing door hardware for cohesive aesthetic. Low-profile 7mm thickness sits flush against door surface - won't protrude or interfere with key operation.

99% Recyclable Materials - Eco-Friendly UK Manufacturing

Metal construction is 100% recyclable. Cork gaskets are renewable, biodegradable material that replaces plastic seals - supporting sustainable manufacturing. A long product life means less waste than replacing plastic escutcheons. Made in Leicester by our family-run team since 2009 - supporting British manufacturing jobs and quality craftsmanship over mass-produced imports.

Designed for Mortice Lock Keyholes Only

Important: The Mini Magflap is designed for mortice lock keyholes only (the keyhole in the door itself, usually with a lever handle or separate deadlock). Measure your keyhole before ordering - if you have a mortice lock keyhole with an escutcheon of 34mm or smaller, this will fit.

Will the 34mm Mini Magflap Fit Your Keyhole?

Understanding 34mm Sizing

The Mini Magflap is 34mm in diameter - approximately the size of a £2 coin. This size fits:
- Standard mortice lock keyholes
- Lever handle mortice lock keyholes
- Traditional mortice deadlock keyholes

How to Check Fitment:

Method 1 - Measure Existing Escutcheon:
If you have an existing keyhole cover, measure its diameter with a ruler. If it's 34mm or smaller, Mini Magflap will fit. If it's larger than 34mm, you'll have a size gap.

Method 2 - Coin Test:
Hold a £2 coin over your keyhole. If the coin covers the keyhole opening completely, Mini Magflap will fit (£2 coins are approximately 28mm - smaller than the 34mm Mini Magflap).

Method 3 - Direct Measurement:
Use a ruler to measure the widest point of your keyhole opening. If it's less than 30mm wide, Mini Magflap will cover it with room to spare.

What if My Keyhole is Larger?

If your existing keyhole escutcheon is larger than 34mm, or you have no existing escutcheon and the keyhole opening itself is very wide, Mini Magflap may not provide full coverage. Contact us for custom sizing options or alternative solutions for oversized keyholes.

Technical Specifications

Dimensions:
- Diameter: 34mm (approximately £2 coin size)
- Thickness: 7mm (low profile, flush mounting)
- Weight: 50g

Materials:
- Body: Metal construction (steel or brass depending on finish)
- Gasket: Cork seal (99% recyclable, biodegradable)
- Magnets: Neodymium rare-earth (N42 grade)
- Finish: Spray-coated or plated depending on color choice

Installation Options:
- Method 1: Self-adhesive backing (pre-applied, peel-and-stick)
- Method 2: Screw fixing (one central screw, included)
- Both methods included with every unit

Finish Options:
- Black
- White
- Chrome
- Nickel
- Steel
- Copper
- Solid Brushed Brass
- Weathered Wood
- Golden Oak
- Ash
- Walnut

Compatibility:
- Lock types: Mortice lock keyholes only (lever handle mortice locks, traditional mortice deadlocks)
- Door types: Timber, uPVC, composite (internal or external fitting)
- Door finish: Stick-on method requires clean, smooth surface; screw-fix works on any surface

Performance:
- Magnetic seal: Self-closing after key insertion
- Draught prevention: Complete seal when closed
- Noise: Silent operation (no clicking or rattling)
- Construction: all metal, with cork gasket
- Maintenance: Zero maintenance required

Warranty:
- 1 year manufacturer guarantee 
- Made in Leicester, UK by Magman

What's Included:
- 1x Mini Magflap Magnetic Keyhole Cover (finish of your choice)
- Self-adhesive backing (pre-applied to rear)
- Screw fixing option (1x mounting screw included)
- Cork gasket (pre-installed)
- Installation instructions

How to Install Mini Magflap (2-Minute Guide)

Stick-On Installation (No Tools Required):

Step 1 - Clean Surface (30 seconds)
Wipe the door area around your keyhole with rubbing alcohol or household cleaner. Remove any dust, grease, or old adhesive. Allow surface to dry completely - adhesion requires clean, dry surface.

Step 2 - Remove Existing Escutcheon (if present)
If you have an old keyhole cover, remove it first. Most escutcheons unscrew with one central screw or peel off if adhesive-mounted. Clean any remaining adhesive residue with rubbing alcohol.

Step 3 - Position Mini Magflap (30 seconds)
Hold Mini Magflap over keyhole without removing backing film. Check alignment - the keyhole opening should be visible through the Mini Magflap's aperture. Mark position lightly with pencil if needed.

Step 4 - Peel and Stick (30 seconds)
Peel the protective film from the adhesive backing. Align Mini Magflap over keyhole and press firmly for 30 seconds. Apply even pressure across entire surface to ensure full adhesive contact.

Step 5 - Test Operation (30 seconds)
Insert your key through the magnetic disc - it should open easily. Remove key - disc should self-close magnetically and seal completely. If disc doesn't close fully, check that nothing is obstructing the magnetic closure.

Total Time: Under 2 minutes

Screw-Fix Installation (Screwdriver Required):

Step 1 - Remove Existing Escutcheon
Unscrew and remove any existing keyhole cover. Clean the mounting area.

Step 2 - Position Mini Magflap
Hold Mini Magflap over keyhole. The central screw hole should align with your existing screw hole (if present) or mark a new hole if installing fresh.

Step 3 - Screw Secure
Insert provided screw through central hole and tighten with Phillips screwdriver. Do NOT overtighten - snug fit only. Over-tightening can warp the magnetic disc mechanism.

Step 4 - Test Operation
Insert key and check smooth magnetic operation.

Total Time: Under 5 minutes

Troubleshooting:

- Adhesive Won't Stick:
- Surface must be clean and dry
- Temperature should be above 10°C for optimal adhesion
- Press firmly for full 30 seconds
- Allow 24 hours for adhesive to cure fully before heavy use

Magnetic Disc Won't Close:
- Check nothing is obstructing the closure (dust, paint residue)
- Ensure screw isn't over-tightened (for screw-fix installation)
- Magnetic disc should move freely - if binding, loosen screw slightly

Key Won't Insert Smoothly:
- Check Mini Magflap is centered over keyhole opening
- Magnetic disc should align with actual keyhole
- Reposition if aperture alignment is off

Need help fitting it? Email info@magman.uk and we'll talk you through it

Which Finish Should You Choose?

Matching Door Furniture:

Brass Door Handles → Choose Brushed Brass Mini Magflap
Warm gold tones coordinate with traditional brass lever handles, brass letterboxes, and brass door knockers. Brushed finish hides fingerprints better than polished brass.

Chrome/Steel Handles → Choose Nickel or Stainless Steel Mini Magflap
Silver tones match modern chrome handles, stainless steel letterboxes, and contemporary door hardware. Nickel offers satin finish; stainless steel gives brushed industrial look.

Black Handles → Choose Spray Coated Black Mini Magflap
Smooth matte black coordinates with modern black lever handles, black letterboxes, and contemporary minimalist door furniture.

White uPVC Doors → Choose Spray Coated White Mini Magflap
Clean white finish blends seamlessly with white uPVC door panels. Becomes almost invisible against white doors.

Copper Door Furniture → Choose Copper Mini Magflap
Rich copper tone matches copper door handles, copper letterboxes, and period property fixtures.

Chrome Polished Handles → Choose Chrome Mini Magflap
Bright polished finish matches high-shine chrome door furniture for cohesive aesthetic.

Mix and Match Acceptable:

Don't stress about perfect matching. Many period properties successfully mix brass and copper tones, or combine brushed and polished finishes. Choose the finish that appeals to you aesthetically - function matters more than perfect color coordination.

Patina Development:

Brass and Copper finishes will develop natural patina over time when installed externally. This antique appearance is desirable for period properties but can be polished away if you prefer bright finish. Nickel, Black, White, Chrome, and Stainless Steel finishes resist patina and maintain original appearance indefinitely.

UK Manufacturing & Quality Commitment

Made in Leicester Since 2009

Every Mini Magflap is hand-assembled in our Leicester facility by our small family-run team. We use precision engineering, quality materials, and hands-on manufacturing to ensure every unit meets our standards. Short supply chain means faster service, easier warranty support, and supporting British manufacturing jobs.

Patent Pending Design

Our magnetic closure mechanism is registered with UK Intellectual Property Office. You're buying original innovation - not cheap copies. The patent-pending design confirms this is genuine Magman product.

1-Year Manufacturer Guarantee

The Mini Magflap is covered by our 1-year warranty against manufacturing defects. If defects occur within 1 year, we repair or replace free of charge. We stand behind our product with genuine warranty support.

Sustainable Materials:
- Metal construction (100% recyclable)
- Cork gaskets (renewable, biodegradable - replaces plastic)
- Long product life reduces waste vs plastic replacements
- Low-energy manufacturing process
- Supports UK jobs and fair wages

Frequently Asked Questions

Q: Will the 34mm Mini Magflap fit my keyhole?
A: The 34mm diameter fits most UK mortice lock keyholes. Measure your existing escutcheon - if it's 34mm or smaller, Mini Magflap will fit. Use the £2 coin test: if a £2 coin (28mm) covers your keyhole, the 34mm Mini Magflap will fit with room to spare.

Q: Which locks does it fit?
A: Mortice lock keyholes only (the keyhole in the door itself). Mortice locks are typically found with lever handles or as separate deadlocks on the door face.

Q: Stick-on or screw-fix - which is better?
A: Stick-on is quickest (2 minutes, no tools). Screw-fix is most permanent and secure. Both options are included - choose based on your situation. Rental properties often require stick-on (no holes). High-traffic doors or external installations benefit from screw-fix security.

Q: Does it really stop draughts?
A: Yes. The magnetic seal creates complete closure over the keyhole. Customers consistently report immediate elimination of cold air coming through keyholes. The cork gasket creates edge-to-edge seal, and magnets ensure zero-gap closure.

Q: Will it interfere with my key?
A: No. The magnetic disc is precision-balanced to open easily when your key pushes through. After you remove the key, magnets pull the disc closed automatically. Smooth, silent operation - no stiff springs or resistance.

Q: How long does the adhesive last?
A: Self-adhesive backing is industrial-grade 3M adhesive designed for permanent mounting. Fit it to a clean, dry surface for the best hold. If adhesive fails in future, simply switch to screw-fix method using included screw.

Q: Can I use this on external doors?
A: Yes. Metal construction and cork gasket withstand UK outdoor weather. Install externally for maximum weather protection, or internally for clean exterior appearance. Both options work equally well.

Q: Which finish should I choose?
A: Match your existing door furniture. Brass handles → Brushed Brass Mini Magflap. Chrome handles → Nickel or Stainless Steel. Black handles → Black. White doors → White. Copper furniture → Copper. When in doubt, Nickel is versatile silver tone that coordinates with most hardware.

Q: Will it rust or corrode?
A: Metal finishes resist corrosion. Spray-coated finishes (Black, White) are fully sealed against moisture. Brass and Copper may develop patina externally (desirable antique appearance) but won't rust. Nickel, Chrome, and Stainless Steel resist tarnish indefinitely.

Q: Can I paint it to match my door color?
A: Not recommended. Spray-coated finishes are already sealed and won't accept paint adhesion well. Choose a finish close to your door color, or use a contrasting finish as design feature (e.g., brass on white door).

Q: How thick is it? Will it stick out?
A: 7mm thickness. Low profile design sits flush against door surface - minimal protrusion. Won't interfere with keys, hands, or door operation.

Q: Do I need to remove my old escutcheon first?
A: Yes. Remove any existing keyhole cover before installing Mini Magflap. Most old escutcheons unscrew with one central screw or peel off if adhesive-mounted.

Buying 10 or more? We supply landlords, housing teams, installers and shops at trade prices. See trade terms and samples.

View full details

EASY USE

Versatile Installation

Can be fitted internally or externally, offering flexibility for various door types. Can be fitted by you or a trusted installer, see our guide below.

Fitting Guide

Proven Thermal Technology

The magnetic seal keeps warm air in and cold draughts out, all year round.

FUSS FREE

Brushless Design

All of our products are brushless. Our perfectly balanced Magman strength magnets eliminates the need for bristles, ensuring a smoother, longer-lasting performance.

The Iconic

Magman® Seal

A strong magnetic seal ensures no gaps for air to seep through, preventing draughts all year round.

carefully crafted since 2009

Family Owned

Our mission is to restore the brilliance of British craftsmanship.

About Magman

1 Year Warranty

Not only does our product come with a 1 year warranty, if you move house and remove your Magflap you can send it back to us to be refurbished ready to install at your new home. Our refurbishment service is £20, including postage to us and back.

Proudly

Made in the UK

Proudly manufactured to the highest standards of quality not just in our products but our service too.

Eco freindly

Cork Gaskets

Made with cork gaskets to reduce plastic use and provide a more eco-friendly solution.