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
2600000+
2600000+
Happy customers love our...
Happy customers love our...
Happy customers love our
Rated Excellent
4.7 out of 5
121,841 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:
Monday 25th November
Insulate your windows & save money
Why shop with us?
2 working day delivery guaranteed
Family owned & run
British business (110 staff)
121,841 5-star reviews
Over 2.6 million happy customers
2 Working 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
Excellent
Based on 99,626 reviews on
Verified
Margaret Tye, 12 November
Company you can trust
Its important to find a trusted company had a few purchases and always been happy with items and the deliveries information from start to arriving brilliant customer care would never hesitate to use MHI very good company well organised would highly recommend keep doing what you do well done
Verified
Sharon Jarman, 11 November
They were in constant contact about my…
They were in constant contact about my order and it's expected delivery date. Customer service was impeccable and the items they sell are brilliant. Keep up the good work. It's lovely to deal with a friendly , honest business
Verified
Derek B, 08 November
Guarantees and promises kept! Again! 👏
As Must Have Ideas advertise, they never have let me down when it comes to sticking to their promises. Orders are always processed quickly and efficiently, and, as a former postman, I know what goes into Royal Mail keeping MHI's delivery promises too. I have yet to be disappointed with either MHI or Royal Mail's delivery procedures. I don't foresee that changing any time soon either. Keep up the good work!! 😊👏🫡
Verified
Sandie Cottee, 31 October
Easy to order
Easy to order, Fast delivery, Packaged well, Quality goods, have ordered in the past and never been disappointed, will order again
Verified
Debra Allen, 17 September
Delivered quickly
Delivered quickly Item does the job Good quality, reasonable price- what more can you ask for?
Verified
Deb, 17 September
Good family run business
Good family run business, reasonable prices, rapid response don’t wait long at all for goods to be delivered
Verified
Judith , 16 September
Fabulous company
This company has some excellent, good quality, household goods. The service, communication and delivery is all excellent. Highly recommend
Verified
C. Crook, 16 September
Good service & good products.…
Always good service & always been happy with any of the products I've bought from this company.
Verified
Mrs V Howard, 16 September
Have used this Company on several…
Have used this Company on several occasions and have always had excellent service.
Verified
Linda Andry-Bourgeois, 16 September
Have bought loads of stuff from Must…
Have bought loads of stuff from Must Have Ideas and their service is outstanding! Will continue to use them for all the unique and useful products they provide!!
Verified
Norma Smith, 18 August
Awesome products, amazing prices!
I've bought a few items from Must Have Ideas... these include Mould Magic, Pinkcredibles, PipePal, the long reach duster for getting in the radiator nooks and crannies, and the truly amazing food saver green bags...(the money I've saved on food waste since using these is fabulous!) My latest purchase has been Nanna's Secret... omg it's amazing! Thank you 'Must Have Ideas' for your truly awesome and reasonably priced products... I have no worries whatsoever about recommending this wonderful company.
Verified
William Dalzell, 09 August
Great family company with lots of super ideas
Great family company with lots of super ideas and helpful solutions to the usual daily obstacles. The items are always boxed well and the instructions are ace. You can tell this company pays attention to the small details and that is what makes them stand out from the crowd. This is why Must Have Ideas are my go to domestic help :) Well done Amy and best of luck going forward!
Verified
Alan Brown, 02 August
Excellent company to deal with
The product I purchased online from this company turned out to be amazing. The whole experience with this company has been perfect, kept up to date on progress of order plus delivered quicker than expected.
Verified
Denise, 30 July
Never disappoints.
I’ve had several things now from this company and have never been disappointed. Easy process to order, quick delivery and items did what they claimed to do. I can highly recommend ‘Must Have Ideas’.
Verified
Pete Bessant, 29 July
You should realy rename this site to:- Must Have Neat Ideas
What makes this website so good is the abundance of neat ideas and ultra useful gizmo's, not only that, it's the speed at which they get orders out to customers
Verified
Susan W, 29 July
Absolutely everything is great
Absolutely everything is great. Advertisements, type of products, ordering, communication and delivery. The process made me feel like there is great care given to everything including the customer.
Verified
E A C Melrose, 20 July
Excellent merchandise
Excellent website with a large range and selection of useful items. Very competitive prices, easy to order and quick delivery. I have been delighted with everything I have ordered and highly recommend this company
Verified
H Cullen, 17 July
Have bought from this company 2-3 times…
Have bought from this company 2-3 times and would recommend them. Items received on time every time. Everything I have bought, has been very good and does what it says.
Verified
Catherine Sadd, 17 July
Fantastic products,quick delivery.Last…
Fantastic products,quick delivery.Last but not least stupendous c Ustomer service 👏👏👏a big thank you to all involved in company.👍😊👍😊
Verified
Chris Barnwell, 17 July
Unique, useful products at great prices.
Great range of very useful products and a website that is easy to use. Products I ordered are as described and prices were extremely competetitive in fact much less then I thought they would be. Delivery was swift and arrived on time. Thank you.