I have used SealedUnitsOnline a number of times now and am very happy with the quality of the products. Ordering is easy and allows many choices to suit any requirement with free delivery should you n... See more
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Review summary
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Easy online ordering process and great price. Sealed unit was perfect with sizes exactly as ordered. Delivery was fine with very helpful driver who carried the large unit right into the house for u... See more
Company replied
Ordered single unit which arrived on time. Fitted and noticed water marks inside glass when sun low in sky. Contacted customer services with attached photo and they immediately sent replacement unit.... See more
Company replied
The website was very easy to use and listed numerous options for glass thickness and finishes. The double glazed units are very competitively priced providing you can wait the 3 weeks or so for standa... See more
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Company details
Written by the company
Sealed Unit Ordering Made Easy! Providing Double Glazed Sealed Units to the trade and public. Great prices and excellent service.
Contact info
Sealed Units Online Limited, Connexions, 159 Princes St, IP1 1QJ, Ipswich, United Kingdom
- 01234 339800
- sales@sealedunitsonline.co.uk
- sealedunitsonline.co.uk
4.6
Excellent
4K reviews
No recent history of asking for reviews
This company hasn't invited customers recently, so reviews may not be representative
Replied to 80% of negative reviews
Typically replies within 1 week
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From ordering to delivery was fantastic…
From ordering to delivery was fantastic
The prices for the glass sealed units are great.
Would recommend this company to my friends and family.
August 7, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Brian,
Thank you for your fantastic 5-star review! ⭐ We’re delighted to hear you were so pleased with the service from ordering through to delivery, and that you found our prices great too. We really appreciate your recommendation to friends and family and look forward to helping you again in the future! 😊
Best Wishes
Sealed Units Online
Reply from SealedUnitsOnline
Hi Tom,
Thank you for your fantastic 5-star review! ⭐ We’re delighted to hear you were happy with the quality of the glass, customer care and overall service. We really appreciate your kind words and look forward to helping you again in the future! 😊
Best Wishes
Sealed Units Online
Sealed double glazed unit with…
Sealed double glazed unit with toughened glass meade to measure and carefully delivered.
Perfect fit, and at a reasonable price too.
July 15, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Peter,
Thank you for your fantastic 5-star review! ⭐ We’re delighted to hear your sealed unit was made to measure, carefully delivered and fitted perfectly. It’s great to know you were also happy with the price. We really appreciate your feedback and hope to help you again in the future! 😊
Best Wishes
Sealed Units Online
Reply from SealedUnitsOnline
Hi Stephen,
Thank you for your 5-star review! ⭐ We’re delighted to hear you were happy with the product and that it arrived on time and in perfect condition. We really appreciate your feedback and hope to help you again in the future! 😊
Best Wishes
Sealed Units Online
Reply from SealedUnitsOnline
Hi Roy,
Thank you for your fantastic 5-star review! ⭐ We’re delighted to hear you found the ordering process straightforward and the delivery excellent. It’s great to know you had an overall perfect experience! We really appreciate your feedback and hope to help you again in the future. 😊
Best Wishes
Sealed Units Online
Competitively priced
Competitively priced, had some issues with delivery, but, emailed them, and got a very prompt response, with an answer, and a new scheduled delivery date. If youre happy to wait a couple of weeks for them to be delivered, this is a company to use, and, as im sure will happen, I will be using them again for any other units I may need in the future.
July 25, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Darren,
Thank you for your fantastic 5-star review! ⭐ We really appreciate your understanding regarding the delivery and are pleased we were able to respond quickly and get a new delivery date arranged for you.
It’s great to hear you were happy with our competitive pricing and overall service, and we’re especially pleased to know you’ll be using us again for any future units. We look forward to helping you again! 😊
Best Wishes
Sealed Units Online
Ordering the glass was very easy and…
Ordering the glass was very easy and straightforward. The price was great. The only thing that let the whole thing down was the delivery driver just left the glass outside on full show to the world. He could have simply put it two feet to his right behind the wall 🤷♂️🙄
June 17, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Shane,
Thank you for your review and for your positive comments about the ordering process and pricing.
We’ll certainly take your feedback on board and pass it on to the relevant delivery team to help improve our services moving forward😊
Best Wishes
Sealed Units Online
Size was spot on and delivery time was…
Size was spot on and delivery time was good
July 15, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Chas,
Thank you for your 5-star review! ⭐ We’re delighted to hear the size was spot on and that your order arrived within a good timeframe. We really appreciate your feedback and hope to help you again in the future! 😊
Best Wishes
Sealed Units Online
Ordered an opaque unit mid June
Ordered an opaque unit mid June. Delivery was 5 weeks later and the unit was different to what I ordered. I have now been informed I need to wait until the end if September for a correct replacement.
August 7, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Ian,
We’re very sorry to hear about your experience. We completely understand how frustrating it must be.
This is certainly not the service we aim to provide. If you could please get in touch with our customer service team, we’d be happy to look into this further and see if there is anything we can do to assist.
We sincerely apologise for the inconvenience and appreciate your patience.
Best wishes,
Sealed Units Online
Good value for money
Great product and price delivered to your door… many thanks
July 23, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi John,
Thank you for your fantastic 5-star review! ⭐ We’re delighted to hear you were happy with the product, price and convenient delivery straight to your door. We really appreciate your kind feedback and hope to help you again in the future! 😊
Best Wishes
Sealed Units Online
I have pros and cons with this company.
I have pros and cons with this company.
Pros - the unit it self was good. High quality and it fitted like a glove.
Cons - customer service. There doesn’t seem to be any real communication going on between production and customer service. I don’t believe these girls actually know when units will be delivered. Giving the option of a 3-5 day delivery is disillusioning to people as they can’t fulfil this option. At a price of £150 it just isn’t worth it. Good customer service is essential to a good business. If this company got that right, they would save themselves a lot of trouble. Would I use them again? Yes, because the product is good. I would though be totally prepared for not knowing when the unit will arrive.
August 5, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Sian,
Thank you for taking the time to leave such detailed feedback. We’re pleased to hear you were happy with the quality of the unit and that it fitted perfectly.
We’re genuinely sorry that your experience with the delivery communication and customer service fell short of the standard we aim for. We understand how frustrating it is when you’re given a delivery option and then don’t receive the level of information you expect regarding when your order will arrive. We also appreciate your comments about the communication between our production and customer service teams, and we’ll certainly take this feedback on board.
We’re particularly grateful that, despite the issues you experienced, you would still consider using us again because of the quality of the product. We’re constantly looking at ways to improve our communication and delivery service, and feedback like yours helps us identify where we need to do better.
Thank you again for your honest review and for giving us the opportunity to improve. 😊
Best Wishes
Sealed Units Online
Excellent service
Ordered a replacement for a blown double glazed unit. Easy to use web site, delivered on time and fits perfectly. Excellent service, would use again.
July 3, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Graham,
Thank you for your great review!
We're really pleased to hear everything went smoothly, from ordering through to delivery, and that the unit fitted perfectly.
Thanks for choosing us and we look forward to helping you again in the future!
Best wishes,
Sealed Units Online
Great service
The simplicity of ordering, the clear delivery notification and the price. If you’ve got the capability to measure and fit your own replacement double glazed window panels, this service is for you.
July 11, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Stephen,
Thanks for taking the time to leave us a review.
We're really glad to hear you found the ordering process easy and that everything arrived as expected. It's great to know you were happy with the price too.
We appreciate your recommendation and look forward to helping you again in the future.
Best wishes,
Sealed Units Online
Excellent options to build a suitable…
Excellent options to build a suitable specification for a difficult replacement. Could not find the equivalent elsewhere. Delivery ahead of schedule
June 20, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi !
Thank you for your review!
We're delighted to hear you were able to find the right specification for your replacement, especially when it wasn't available elsewhere. It's also great to know your order arrived ahead of schedule.
We really appreciate your feedback and hope to help you again in the future.
Best wishes,
Sealed Units Online
Glass panes arrived exactly as planned
Glass panes arrived exactly as planned. Quality was good, price was fair. Only down size was the wait for delivery. It was exactly as stated, but was a couple of weeks between order and delivery.
June 26, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Neil,
Thank you for your 4-star review! ⭐ We’re pleased to hear your glass arrived exactly as planned, and that you were happy with the quality and price.
We completely understand that the couple of weeks between ordering and delivery can feel like a long wait, even when the delivery timeframe is as stated. We really appreciate your patience and your feedback, and we hope you’ll consider using us again in the future! 😊
Best Wishes
Sealed Units Online
I've used this company a number of…
I've used this company a number of times to replace defective double glazed panels and have always found the quality, price and service to be excellent. I have no issues in recommending them for replacement double glazed units.
July 4, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Mr. Turner,
Thanks for your review!
We’re really pleased to hear your glass arrived as planned and that you were happy with the quality and price. We appreciate your patience while waiting for delivery, and we’re glad everything arrived as expected.
Thanks again for choosing us!
Best wishes,
Sealed Units Online
Excellent service and would definitely…
Excellent service and would definitely recommend. If you need replacement sealed units buy them here.
June 25, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Joe,
Thanks for the great review!
We’re really happy to hear you had an excellent experience and would recommend us. It’s great to know you found our service helpful when replacing your sealed units.
Thanks again for choosing us!
Best wishes,
Sealed Units Online
Sealed transom units
Able to provide the required unit. Unfortunately it was at the top end of the tolerance +3mm so I need to router the frame.
July 1, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Nigel,
Thanks for taking the time to leave a review.
We're pleased we were able to provide the sealed transom unit you needed. We appreciate your feedback and are glad we could help with your replacement project.
Thanks again for choosing us, and we hope to assist you again in the future.
Best wishes,
Sealed Units Online
One star. Would not recommend. Six weeks of missed dates, false "delivered" claims, and no accountability.
I ordered a sealed unit for a window on 22 May. What should have been a straightforward order turned into six weeks of chasing and missed delivery dates.
The original delivery date (8 June) needed changing due to a prior holiday commitment. I called three times, leaving my number each time, asking for a callback. Nobody ever called back. The only way I got a response was by email – and to be fair, the person who replied by email was helpful and polite throughout. It shouldn't take giving up on the phone entirely to get a reply.
The rescheduled date of 17 June came and went with nothing delivered and no explanation. A few days later, while I was away with my phone off, I received a delayed SMS saying the driver was "at my door." Nothing was left. The following day I received a text stating "delivery completed, thank you for your business" – which was simply false. I had to chase them again to get this corrected.
Rescheduled twice more, then missed the third window entirely. A new date of 1 July was set, then pushed to 3 July between 2 and 4pm. I stayed in all day. Nothing arrived. After 4pm I emailed for an update – no response. Before 6pm, with no delivery and no word from them, I had to cancel my evening plans. I then tried their live chat around 7pm, despite it being advertised as staffed until after 9pm, and was told no one was available. I left a message. No response that evening or that night.
At 9:25am the following day, the driver called saying he'd arrive in 10 minutes, with no prior warning after everything that had happened. When I asked why the delivery had been missed the day before, his explanation was that he'd had an eye test. He also mentioned, unprompted, that he'd hurt his back the day before, informing me of this while carrying the unit up himself. When I tried to inspect the unit for damage, he left abruptly saying he'd left his van open, and stayed there rather than returning to let me finish checking it with him present.
The unit itself was fine – undamaged, no visible faults. But that's beside the point. The product was never the issue. The issue is a company that misses its own delivery commitments repeatedly, texts customers with false "delivered" confirmations, is unreachable by phone, ignores emails and live chat inside of its own stated availability, and leaves the customer to chase every single update.
If you're considering ordering from Sealed Units Online, be prepared to:
* Chase them constantly for basic information
* Have delivery dates missed more than once
* Possibly be told something was delivered when it wasn't
* Get little to no communication when things go wrong
The product may turn out fine in the end, but the process to get there was stressful, disruptive to my personal life, and completely avoidable with basic professionalism and communication. I can't recommend this company based on this experience.
July 4, 2026
Unprompted review
Bespoke Sealed Units
I have used SealedUnitsOnline a number of times now and am very happy with the quality of the products. Ordering is easy and allows many choices to suit any requirement with free delivery should you not mind waiting a little bit longer. Orders are fulfilled within the estimated date given, however, if there is a downside, it's that the double glazed units ordered are left outside your property without any notification that they have arrived! It doesn't seem right that you open your door to go out only to find that your windows are there propped up against the wall!.
May 25, 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Kevin,
Thank you for your continued custom and for taking the time to leave such a fantastic 5-star review.
We're delighted to hear that you've been pleased with the quality of our sealed units and that you find our online ordering process easy to use, with plenty of options to suit your requirements.
We also appreciate your feedback regarding the delivery notification. Our glass is transported on specially designed vehicles and, where possible, our drivers will leave the units in a safe location. However, we understand that discovering your delivery without prior notification can be unexpected. We've shared your comments with our transport team as customer feedback like yours helps us to continually improve our service.
Thank you again for your valued support, and we look forward to supplying you again in the future.
Best Wishes
Sealed Units Online
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