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21st Birthday Party Decorations & Décor

21st birthday banners, bunting, hanging swirls and string decorations, boxed decoration packages and a gold glitter centrepiece, in rose gold, black and gold, navy, pink sparkle, blue stars and bright confetti.

  • Order by 1pm Mon–Fri for same-day despatch
  • Free delivery on qualifying orders
  • Next day delivery available at checkout
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55 products

More 21st birthday

Balloons and colour-matched party themes

Discover our fab and classy 21st birthday decorations. All the 21st birthday party decorations you need for a very special birthday celebration!

21st Birthday Decorations

Let our great selection of 21st birthday party decorations make decorating easy. Find all the 21st birthday decor that you need to bring your 21st decoration ideas to life!

Enjoy free delivery on qualifying orders. If you need your decor for 21st birthday delivered in a hurry, we offer Next Day delivery too!

21st Party Decorations

Our birthday decorations 21st themed make achieving your perfect decor easy. Whether you are having a party at home or at a venue. Our selection of decor includes some rather unique 21st birthday decorations. Even ones you can personalise! We have a great selection to suit all budgets. So whether you are looking to buy 21st birthday decorations cheap in price. Or 21st birthday decoration blue in colour. We have you covered.

Decor for 21st Birthday

Our great 21st birthday decorations for him make it easy to find the perfect 21st birthday decorations male guests of honour will love.

Give them the entrance they deserve with our 21st birthday ideas for her or him, our 21st birthday decoration collection will ensure you find everything you need and lots of items you didn't! All you need to do is create some amazing 21st Birthday memories that your party vibe demands!

Birthday Party Decorations 21st

Once you have the birthday decorations for 21st celebrations that are just right for you. Why not take a look at our matching 21st birthday party supplies? Finding what you need is easy, from our selection of matching party ranges.

21 Birthday Decorations

It is easy to complement your decorations effortlessly. We have a great selection of 21st birthday balloons to complement your decor. And some great 21st birthday candles for your cake. We really do have everything you need to make pulling off the best 21st party party covered. If you need any help, our friendly team are always happy to point you in the right direction, why not get in touch.

With epic 21st birthday decorations for her and 21st birthday decor for him in abundance, it is time to Party Save Smile!

Frequently asked questions

Do you have rose gold 21st decorations?
Yes: a Rose Gold Confetti foil banner, a Rose Gold Holographic foil banner, rose gold 21st bunting in 2.7m and 3.9m lengths, rose gold hanging swirls and rose gold hanging string decorations. Our rose gold 21st range has more to match.
What size is the gold 21st table decoration?
The Gold 21st Birthday Table Decoration is a gold glitter number 21 centrepiece about 20cm x 20cm x 3cm, made from polystyrene.
Is the Pink Sparkle 21st banner foil?
No, it's a paper letter banner on string, about 2.1m (7ft) long. Most other 21st banners here are foil, such as the 9ft Glitz and Bright Confetti banners, which can be cut into 3 pieces.
What is in a 21st Birthday Decoration Package?
Each package is presented in a box with tissue paper and contains a bunting style banner and a rectangular banner (both about 2.74m long), a Happy Birthday candle set (about 10cm) and a 7cm card birthday badge. Colours include black and silver, black and gold, navy and gold, navy blue and silver and hot pink and silver.
Can I get my 21st decorations in time?
Orders placed before 1pm Monday to Friday are despatched the same day, and next day delivery can be selected at checkout. Free delivery is available on qualifying orders.