Introducing Heat Seal, the non-permanent MONEY-SAVING
window insulation kit that locks in the heat & keeps out the cold.
QUICKLY & EASILY form an airtight seal on ANY window
without tools or DIY skills to ELIMINATE heat loss &
SAVE on your energy bills.
Heat Seal’s invisible design means you won’t be able to see it – but you
will FEEL the difference – in your home AND in your pocket.
Plus, it removes effortlessly without a trace, leaving ZERO damage to your
surfaces – you’ll NEVER even know it was there!
Stay Warm While Saving Money
Lock In The Heat & Keep Out The Cold
Quick & Easy Installation
No Tools Or DIY Skills Required
Will NEVER Damage Your Surfaces
HUGE Kit Enough For Several Windows
Stop Wasting Heat &
Throwing Money Out
Of The Window
Stop Wasting Heat & Throwing Money Out
Of The Window
Insulate your windows, turn the
thermostat down & save money
Get The Warmth &
Comfort Of Double-Glazing WITHOUT The Price Tag
Get The Warmth & Comfort Of Double-Glazing WITHOUT The Price Tag
Fix draughts fast, reduce
condensation & keep the heat in
your home at a fraction of the cost
Invisible Design Won’t Ruin The Appearance Of Your Home…
Invisible Design Won’t Ruin The Appearance Of Your Home…
You won’t be able to see it – but you’ll feel the difference
It’s So Easy To Install,
You Can Do It Yourself In MINUTES…
WITHOUT tools or
DIY skills needed to start SAVING money
Simply measure, cut & stick
Easily remove wrinkles with a standard hairdryer
Removes Quickly
& Easily Without
ANY Damage – You
Won’t Even Know
It Was There
Removes Quickly & Easily Without ANY Damage – You Won’t Even Know It Was There
The non-permanent,
money-saving, seasonal solution
to heat loss
H-U-G-E 5ft x 32ft
(1.6m x 10m)
Coverage, Enough
To Insulate Several
Draughty Windows
H-U-G-E 5ft x 32ft (1.6m x 10m) Coverage, Enough To Insulate Several Draughty Windows
Perfect for windows, patio doors & conservatories
10000000+
10000000+
Happy customers love our...
Happy customers love our...
Happy customers love our
We're Rated Excellent
4.6 out of 5
155,078 reviews
Get your Heat Seal
today and SAVE 1/3
USUALLY £22.99
JUST £14.99
Or pay it in 4 with 
Or pay in 30 days with 
Order now for guaranteed delivery by:
Wednesday 4th February
Insulate your windows & save money
Why shop with us?
2 day delivery guaranteed*
Family owned & run
British business (175 staff)
155,078 5-star reviews
Over 10 million happy customers
2 Day
Tracked Delivery*
from family-run UK business
No Quibble 100-Day
Money Back Guarantee
UK based customer services
Hassle-Free
Returns Guarantee
Returning items is quick & easy
Customer Reviews Powered By
We're rated
Excellent
Based on 154,944 reviews on
Verified
Margaret Cox, 22 January
Excellent products.
Have used Must Have since February 2022. I love their new ideas and products so much that I have recommended them to countless people.
Verified
Mary , 22 January
Amazing 🤩
Amazing product, always on time. Nice customer service.. ready to reply all your enquires. Definitely one of the best seller online ⭐️⭐️⭐️⭐️⭐️
Verified
Sharon Brooks, 20 January
Great products, great company
Great products...All the products I have bought from must have ideas have been brilliant, from lights, gardening gloves to cleaning and sealing, all as described, and do exactly as they are meant, great company and site and delivery is fast, lots of choice and special offers, will definitely continue to order
Verified
William Adams, 19 January
Everything is so easy from ordering to…
Everything is so easy from ordering to delivery,brilliant communication speedy delivery and the items r great and priced right 10/10 for this business
Verified
Mrs ursula s a jeske, 13 December
They super spacious
I highly recommend ' must have ideas UK ,' highly The better boxes are great , spacious hold loads you can organise whatever you put in it so much better I will reorder more when I have more money to do so and everything will be even easier for me 😊 From ordering to delivery I got email updates and have a list of other items I will get Thank you Amy and team you do make life easier and better with all your suggestions on items on your website that's why I give this review 5 stars ✨✨✨✨✨
Verified
Dorothy, 12 December
This is an amazing company the items…
This is an amazing company the items sold are really good I have had a lot of goods from them and I have had to contact them a couple of times with advice and they have been so helpful. The best company I have ever dealt with.
Verified
Elizabeth Gibbons, 11 December
Must Have are the best company I've…
Must Have are the best company I've ever dealt with. Reliable, efficient, professional and i would recommend to anyone.
Verified
Heather, 02 December
Excellent products and company
Fantastic range of useful practical products of high quality. And guaranteed fast delivery always
Verified
David Lovett, 02 December
LOVELY FAMILY COMPANY
Lovely family company and products and excellent customer service and delivery!
Verified
C Miller, 02 December
Must have ideas - a great company …
The items they sell are very good both in use and in value for money. The communication is excellent and delivery is quick. I would definitely recommend this company to everyone
Verified
Sarah Dixon., 01 December
Super product ⭐️⭐️⭐️⭐️⭐️
Super product, really well made Quick delivery
Verified
Patricia Atkins, 01 December
The Must Have company...
The Must Have company is a reliable firm which stands behind their products. The products we've bought have been reasonably priced, carefully packed and arrived in the time frame promised. Very dependable company
Verified
MS LINDA PELLING, 01 December
What a fabulous company
What a fabulous company. Their products are really good and their attention to their customers is outstanding! Merry Christmas Amy and family
Verified
Janice James-jenkins, 01 December
First class company and products
First class company and products
Verified
LeAn, 13 November
I love this company
I love this company, they find all the wonderful gadgets easy to buy, without the risk of ordering from weird sites and easy to return if you are not happy. Their service is impeccable and super fast.
Verified
JOHN RENNIE, 06 November
GREAT PEOPLE TO TALK TO, & ARE ALWAYS THERE TO OFFER HELP WHATEVER YOUR PROBLEM ON MUST HAVE IDEAS!
I'll always remember placing my first order with Must Have Ideas. From the start they have been always friendly and polite over the phone, and in their emails to me to remind me of when my purchases were Dispatched and Out For Delivery. They do everything they can, as quickly as they can, to help every customer young or old! Great selection of products to choose from, on their TV Channel and Website. Thanks Must Have Ideas.
Verified
Lindsay Gordon, 31 October
I've ordered a few things through Must…
I've ordered a few things through Must Have Ideas. I have been happy with all their products and customer service, would recommend.
Verified
Brian White, 25 October
Great Company.
This company is one of the best I’ve ever bought products from. Deliveries are always on time, packaging always good and customer service is excellent.
Verified
jean johnson, 18 October
This is a truly excellent firm ,
This is a truly excellent firm ,with the kind of values that I thought was long gone.The phones are answered quickly with real people,and they make it well known how grateful they are for your custom.The items are as described .All in all it is an absolute eye opener dealing with this company,I recommend them to anyone reading this,you will not be disappointed.
Verified
Lynne Waddell, 20 September
The Best
I have used Must have ideas for years and love the products. Great customer service