Seasonal: Father’s Day
Giant Numbers: Numberloon Shapes
Party Bunches: Party Balloons (Bunches)
Occasion Balloons: Anniversaries; Congratulations; Get Well Soon; Good Luck; Graduation; Hen & Stags; New Baby; Religious; Retirement; Romantic/ILoveYou; I’m Sorry/Leaving; Thank You; Wedding & Engagment; Welcome Home
Birthday Balloons: General; Family/Relations; 1st to 100th; Kids/Childrens; Super Shapes; Giant Numbers; Animal Themed Numbers
Children's Balloons: Happy Birthday; Kids Characters; Super Shapes
Just Balloons: Super Shapes; Miscellaneous
Mum & Dad: Just For Dad; Just For Mum
Themed Balloons: Emoji; Scary/Spooky; Sports; Casino; Food & Beer
Order & Track: TRACK YOUR ORDER
Balloon Info: About Us; What is Helium?; Balloon Delivery across the UK
All you need...: Home Sweet Home; Why Choose Us?
Latest Arrivals: Emoji
The Extras: Chocolates; Sparkling Prosecco; Sprinkle of Rose Petals; Champagne; Teddy Bears; Extra Balloons; Flower Bouquets
Just Balloons: Party Bouquets; Super Shapes; Miscellaneous; Balloon Delivery across the UK
Birthday Balloons: Special Birthdays; General; Family/Relations; 1st to 100th; Kids; Super Shapes; Numberloons; Zooloons
Children's Balloons: Birthday; Kids; Super Shapes; Disney; Star Wars
Occasion Balloons: Romantic; Anniversaries; Wedding & Engagment; Hens & Stags; Congratulations; Thank You; I’m Sorry/Leaving; Get Well Soon; Good Luck; Welcome Home; New Baby; Religious; Retirement
Themed Balloons: Emoji; Smiley Faced :); Just For Dad; Just For Mum; Scary/Spooky; Sports; Casino; Food & Beer
Balloon Info: About Us; What is Helium?

21st Birthday Balloons

Say Happy 21st Birthday

21 Purple Shining Star £12.99 Buy

22″ Brilliant Stars 21 Bubble £21.99 Buy

22″ Blue 21 Bubble £21.99 Buy

22″ Pink 21 Bubble £21.99 Buy

21 Polka Dots & Stripes £12.99 Buy

Happy 21st Birthday Blue £12.99 Buy

Happy 21st Birthday Purple Streamers £12.99 Buy

Happy 21st Birthday Pink Holographic £12.99 Buy

30″ Silver No. 21 Megaloon £39.99 Buy

30″ Gold No. 21 Megaloon £39.99 Buy

30″ Pink No. 21 Megaloon £39.99 Buy

30″ Blue No. 21 Megaloon £39.99 Buy

30″ Black No. 21 Megaloon £39.99 Buy

30″ Rose Gold No. 21 Megaloon £39.99 Buy

40″ Zooloon No. 21 £49.99 Buy

Say Happy 1st–100th Birthday

Why Choose interBALLOON?

We Love Balloons

With over 1000 Balloon Combinations all at blooming great prices.

Real Balloon Shop

Yep, that's right we are a real hard working High Street Balloon Shop selling online since 1999.

Free Delivery

Free delivery available as well as Pre 9am, Pre 10.30am, Pre 12noon, Saturday and Sunday services.

Extra Gifts

Customise your order to your heart's content with our huge range of unique extra gifts.

If you like all things helium balloons as much as we do then why not sign up for our very occasional newsletter!

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Feedback

Fantastic service. delivered earlier than expected which was much appreciated as it was a birthday gift Arrived in tact no damages. My dad just loved the surprise. Would definatley recommend this seller.

Jackie Reilly
Well, what can I say! My brother was delighted with the chocolates and balloon, which arrived yesterday. Thank you so much - it gladdens my heart to find a company who will just go that extra mile to please and rectify a very small omission! I will most definitely use your company again and have already sung your praises to everybody I've spoken to.

Sue Smith
Arrived very promptly. Balloons inflated inside a box. Lovely birthday surprise when box is opened. Definitely would buy them again for a gift.

Linda Knight
Dear interBALLOON, your Website is fantastic and we loved our Balloons. A Job Very Well Done. Definetly be using you again! Thankyou!

Sue
Dear Balloon People, Thankyou for delivering my balloon, teddy and chocolates. WOW what with the rose petals as well my mum's leaving party went brilliantly. It made my day, thankyou very much for such a great gift in a box.

Andrea Porter
Thank you soooooooooooo much. I only ordered this yesterday and it has just arrived. What a wonderful service and it is exactly what I wanted. A definite 5. Thank You :).

Ellie Dawson
Hello, I just wanted to thank you for your fantastic service.
I ordered balloons to be sent to my daughters college in Woking on Wednesday 8th March.
They arrived at the predicted time and were very impressive. Thank you. It really made her day special.

Karen Sambrook