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✨ HUGE SUMMER SALE 20% OFF ALL ORDERS (ENDS AUGUST 31ST) ✨ CODE: 26SUMMER20
✨ HUGE SUMMER SALE 20% OFF ALL ORDERS (ENDS AUGUST 31ST) ✨ CODE: 26SUMMER20
21 Neon Sign for Birthday Decor - Neon Filter

21 Neon Sign

por Neon Filter
£31.95 - £31.95
£31.95
£31.95 - £31.95
£31.95

A bold standalone 21 sign designed to make the milestone unmistakable. Its simple outline works behind a cake table, at a venue entrance or in a photo booth and can be styled around any party theme.

Click the START CUSTOMISER button below to start the design tool.

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Free design proof - with unlimited revisions included. After ordering your AI design is checked by a Neon Filter designer who sends you your design proof - usually within 1 working hour - for your approval. We won't start production until you're happy with the design.

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Everything Included With Your Order

Everything Included With Your Order

Every Neon Filter sign arrives ready to install straight out of the box. Included as standard:

✓ Your made-to-order LED neon sign - built using premium Ultra Glow LED tubing and mounted to a clear acrylic backboard.

✓ 4m power cable & power supply - giving you plenty of flexibility when positioning your sign.

✓ Wall mounting kit - complete with fixings for quick and easy installation.

✓ Instruction guide - simple step-by-step setup in just a few minutes.

Colour Choice

Birthday Neon Signs Buyers Guide

Create a birthday celebration your guests will never forget. Whether you're planning a 16th, 18th, 21st, 30th, 40th, 50th or any milestone birthday, a personalised LED neon sign creates the perfect backdrop for photos, parties and lasting memories. Explore our expert guide to choosing the right size, colour and style, then design your own custom birthday neon sign online in minutes.

A festive party setup with a large black and gold balloon arch, a gold sequin backdrop, and a glowing neon sign that reads 'Let's Party'. Several people are gathered in front, holding champagne glasses and smiling and laughing.

Create an Unforgettable Birthday Backdrop

Whether you're celebrating an 18th birthday, a milestone 30th, 40th or 50th birthday, or throwing a party for someone special, a personalised LED neon sign instantly creates the centrepiece of your celebration.

Many customers pair their sign with balloon arches, shimmer walls or flower walls to create an unforgettable backdrop for photographs throughout the event.

Unlike printed decorations, a custom neon sign becomes a lasting keepsake that can be reused for future birthdays, celebrations or displayed at home afterwards.

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21 Neon Sign for Birthday Decor - Neon Filter

21 Neon Sign

£31.95 - £31.95
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£31.95 - £31.95
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A bold standalone 21 sign designed to make the milestone unmistakable. Its simple outline works behind a cake table, at a venue entrance or in a ph...

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Birthday Balloons Neon Sign for Birthday Decor - Neon Filter

Birthday Balloons Neon Sign

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A cheerful cluster of three birthday balloons tied with a bow. This text-free design creates a joyful focal point for children's parties, family ga...

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Happy 18 Birthday Neon Sign for Birthday Decor - Neon Filter

Happy 18 Birthday Neon Sign

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£31.95 - £31.95
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A striking Happy 18 Birthday sign with the milestone number placed at the centre. Designed for 18th birthday parties, venue walls and photo backdro...

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Happy Birthday Handwritten Neon Sign for Birthday Decor - Neon Filter

Happy Birthday Handwritten Neon Sign

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A clean handwritten Happy Birthday sign with an informal, welcoming feel. The wide script suits mantel displays, venue walls, garden parties and re...

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Happy Birthday Heartline Neon Sign for Birthday Decor - Neon Filter

Happy Birthday Heartline Neon Sign

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A delicate Happy Birthday sign with a heart linking the two words and flowing lines at each side. The wide layout suits cake tables, mantel display...

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It's My Birthday Neon Sign for Birthday Decor - Neon Filter

It's My Birthday Neon Sign

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A confident It's My Birthday sign with an angled two-line layout. Designed for the guest of honour, it creates a fun focal point at brunches, dinne...

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Let's Celebrate Neon Sign for Birthday Decor - Neon Filter

Let's Celebrate Neon Sign

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An elegant Let's Celebrate sign with a sweeping underline and easy-to-read script. A versatile choice for birthday dinners, hired venues, bars, cak...

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Let's Get This Party Started Neon Sign for Birthday Decor - Neon Filter

Let's Get This Party Started Neon Sign

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A bold statement sign reading “Let's Get This Party Started”. Ideal for entrance walls, dance floors, bars and photo areas, it sets an upbeat mood ...

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Let's Party Neon Sign for Birthday Decor - Neon Filter

Let's Party Neon Sign

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A lively Let's Party sign in expressive handwritten lettering. Its compact message is easy to style above a drinks table, DJ booth, dance floor or ...

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Party Time Neon Sign for Birthday Decor - Neon Filter

Party Time Neon Sign

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A playful Party Time sign with a clear two-line layout and celebratory exclamation mark. Designed for birthday bars, buffet tables, dance spaces an...

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See more
Three vertical panels show a decorated event space with a large illuminated 'Let's Dance' sign above a dessert table, balloon garlands, candles, and champagne flutes. The left panel glows purple, the center panel is warm white, and the right panel is cool white.

Choosing the Right Colour & Style

The colour of your neon sign helps set the mood for your celebration.

Warm White creates a timeless, elegant look that suits every venue, while Snow White feels clean and modern. Pastel Pink remains one of the most popular choices for birthday parties thanks to its vibrant, Instagram-worthy appearance.

Whether you're planning a sophisticated dinner or a colourful party with balloons and decorations, your neon sign can be customised to perfectly match your chosen theme.

A wedding or party event setup inside a decorated event tent, showing multiple illuminated neon signs with size labels overlaid: a large back wall sign reading 'Andy's 50th' (160cm wide), a DJ booth side sign reading 'let's party' (80cm wide), and a table sign reading 'Sip Sip Hooray' (60cm wide). The scene includes a bar station, dance floor, cupcakes, champagne glasses, draped curtains, string lights, and floral decor.

What Size Birthday Neon Sign Do I Need?

The right size depends on where your sign will be displayed.

Smaller signs work perfectly on gift tables and dessert displays, medium signs complement balloon arches and shimmer walls, while larger personalised signs create spectacular backdrops for photographs.

If you're planning a professional balloon display, a larger sign generally creates much greater visual impact.

Customer Birthday Inspiration Gallery

A celebratory tabletop setup with a large silver ice bucket holding champagne bottles, a red tablecloth, a white plate of cupcakes topped with red circles and white script reading '35', and a glowing neon-style 'est. 1989' sign in front.

Planning Where Your Birthday Sign Will Go

A personalised birthday neon sign can become the focal point of almost any celebration.

Popular locations include balloon walls, shimmer walls, dessert tables, entrance displays and dedicated photo backdrops where guests naturally gather throughout the event.

If you're hiring a venue, it's worth checking available power sockets before the party.

For even greater flexibility, compatible signs can also be powered using our optional battery pack, making it easier to position your sign exactly where it creates the biggest impact.

A group of friends celebrating a 16th birthday at an outdoor patio, gathered around a glowing 'Happy Birthday' sign. The background features a large balloon garland in gold, white, and silver, a large illuminated '16' sign, and a fire pit table with drinks.

A Keepsake You Can Celebrate Again and Again

Unlike balloons and party decorations that disappear at the end of the evening, your personalised LED neon sign becomes a lasting reminder of the celebration.

Many customers display their birthday sign in a games room, bedroom, home bar or cinema room after the party, while others reuse it every year with different balloon displays and decorations.

It's one of the few birthday decorations that becomes part of your home long after the candles have been blown out.

Next Day Delivery

Every order is made in the UK. Need it quickly? Choose from Standard, Rush or Super Rush production options, with free next-day delivery available throughout the UK.

Up to 10 year warranty

Designed using premium Ultra Glow LED technology and engineered to provide over 50,000 hours of illumination. Our signs are built to shine day after day.

Customer Support

Need help choosing the right size, colour or design? Our experienced team is available by live chat, email and phone, ensuring your sign is perfect from start to finish.

Frequently Asked Questions

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