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
Company replied
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Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
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 83% of negative reviews
Typically replies within 1 week
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Sealed Units Online
Have used them several times now and always delivered quality units at a very reasonable price.
5 May 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Richard,
Thank you for your 5-star review and continued custom. We're delighted to hear that you've used us several times and have consistently received quality units at a very reasonable price. Your support is greatly appreciated, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Great place to get replacement double glazed sealed units
If you need a replacement double glazed unit, look no further than SealedUnitsOnline. It's very easy to order the exact size and style you want from their easy to navigate website. The prices are very reasonable. I bought three units for my Mums front door. I wondered whether the Units would be damaged in transit but to my surprise they delivered them personally, which was amazing.
5 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Duncan,
Thank you for your 5-star review. We're delighted to hear that you found the website easy to navigate and that ordering the exact sizes and styles you needed was straightforward. It's great to know you were pleased with the pricing and that the units arrived safely and in good condition for your mum’s front door.
We really appreciate your feedback and are especially pleased to hear our delivery service made a positive impression. Thank you for your recommendation, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Received unit before expected
Received unit before expected, well packaged and fitted perfectly could not be more pleased. Great company and would use again.
17 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Mr Smith,
Thank you for your 5-star review. We're delighted to hear that your unit arrived earlier than expected, was well packaged, and fitted perfectly. It's great to know you're so pleased with the result. We really appreciate your feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Excellent service
Excellent service, product was top quality (replacement double glazed unit) and staff helpful with my enquiry.
Will deffo use again
17 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Ian,
Thank you for your 5-star review. We're delighted to hear that you were pleased with the service, the quality of your replacement double glazed unit, and that our staff were helpful with your enquiry. We really appreciate your feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
I’ve been using Sealed Units Online for…
I’ve been using Sealed Units Online for some years now, and I’m completely satisfied with their quality, service, and value for money. They have always been delivered on time (using their free 28-day service) and they’ve always been to the correct dimensions. I’d highly recommend them.
17 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi David,
Thank you for your 5-star review and for your continued custom over the years. We're delighted to hear that you've consistently been satisfied with our quality, service, and value for money, and that your orders have always arrived on time and to the correct dimensions.
We really appreciate your recommendation and your ongoing support, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Ordering was really easy
Ordering was really easy. The double glazed unit arrived safe and was a perfect fit. Would definitely recommend
1 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Nige,
Thank you for your 5-star review. We're delighted to hear that ordering was easy and that your double glazed unit arrived safely and was a perfect fit. We really appreciate your recommendation and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
One star because I can't leave zero
One star because I can't leave zero. Shocking service. 2 months to deliver one small pane of glass. Never answered questions regarding delivery of whichthere were many. I will never use this company again. I even received two texts on separate occasions informing me my order for a double glazed unit had been delivered. I didn't order a double glazed unit.. Absolutely hopeless.
5 April 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Gavin,
Thank you for your feedback, and we’re very sorry to hear about your experience.
We understand your frustration regarding the lead time and the lack of response to your delivery queries. Clear communication is an important part of our service, and we regret that this fell short in your case.
We also apologise for any confusion caused by incorrect delivery notifications, and we appreciate you bringing this to our attention. This will be reviewed with our team to help prevent similar issues in future.
Thank you for taking the time to leave your review.
Best Wishes
Sealed Units Online
Very poor quality and late
Takes a long time to arrive and wasn’t given even an estimate day, it was simply lucky I was in. Delivery driver was really nice but the sealed unit was poor quality. The fitter had to cut down much of the overflowing black as there were thick lumps over 10mm in some places. I’ve have sealed units from other places and usually it’s flush and even so the glass sits evenly — but this was horrendous. Just so messy and was still tacky when it arrived you could sink your finger into it and any hair or dust got stuck to it.
Wouldn’t order from here again and would definitely not recommend it. Fitter was appalled by the quality and I just hope it doesn’t fail, I’d probably pursue a small claim if it does as I’ve evidence everything with photographs.
1 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi,
Thank you for your feedback, and we’re sorry to hear about your experience.
We take comments regarding product quality very seriously. All units are manufactured to the specifications selected at the time of order and are checked prior to dispatch. However, we are sorry to hear that you were unhappy with the finish described and the condition on arrival. Your comments regarding excess sealant and tackiness have been noted and will be fully reviewed with our production team.
We also regret that the delivery timing did not meet your expectations in terms of advance notification. While estimated lead times are provided at the point of order, we appreciate that clearer delivery day updates would improve the customer experience.
Thank you for taking the time to leave your review and for bringing these concerns to our attention.
Best Wishes
Sealed Units Online
Great service delivered ahead of time…
Great service delivered ahead of time easy to use website
17 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Haydn,
Thank you for your 5-star review. We're delighted to hear that you were pleased with the service, that your order was delivered ahead of schedule, and that you found the website easy to use. We really appreciate your feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
The glass units were not wrapped-…
The glass units were not wrapped- protected in any way. One unit was cracked across the unit on one side.
Took 6 weeks to be delivered.
Cannot speak to anyone about this situation- no one answers the phone.
So ordered a new unit from another company. Delivered in 5 days . Wrapped up and protected.
And 1/2, the price.
Not good.
1 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Martin,
Thank you for your feedback, and we are sorry to hear about your experience.
We take all reports of damaged or faulty units seriously. Our glass is transported in purpose-built, racked vehicles and is delivered unwrapped as standard, as stated on our website prior to ordering. All units are finished with black edge tape for protection during handling and installation.
We are sorry to hear that one of your units arrived damaged and that you were unable to reach us by phone. This is not the level of service we aim to provide, and we understand how frustrating this situation would be, particularly alongside the longer lead time you experienced.
If you have not already had a response, please follow up with our team so we can ensure this is reviewed and resolved as a priority.
Thank you again for taking the time to leave your feedback.
Best Wishes
Sealed Units Online
Excellent service, production and delivery of bespoke glazing units.
The ordering process was really effective, enabling bespoke sizes and configurations to be created. Production and delivery were similarly swift and I was kept updated throughout the process. Definitely recommend SealedUnitsOnline. Very impressed.
17 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi,
Thank you for your 5-star review. We're delighted to hear that you found the ordering process effective and easy to use for bespoke sizes and configurations, and that production and delivery were swift. It's great to know you felt well updated throughout the process and were very impressed with the service. We really appreciate your recommendation and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Panels were as ordered but delivered late
The ordering process was straight forward and clear, their prices competitive and the panels that were delivered were exactly as ordered.
However, I paid for a premium delivery and they arrived late leaving us boarded up for longer then necessary, hence the loss of a star.
13 April 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Greg,
Thank you for your review and for your feedback. We're pleased to hear that you found the ordering process straightforward and clear, and that the panels were exactly as specified at a competitive price.
We’re sorry to hear that the premium delivery did not arrive within the expected timeframe, resulting in you being boarded up longer than necessary. We understand how frustrating that would have been, and your comments have been noted so we can review and improve our delivery service.
Thank you again for your feedback and support – we appreciate your recommendation and hope to provide a smoother experience next time.
Best Wishes
Sealed Units Online
Excellent service
Excellent service, prior manufacture, all units confirmed by the sealed units team by great communication in regards to dimensions and technical specifications required. Would definitely purchase more window units again!
22 May 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Ian,
Thank you for your 5-star review. We're delighted to hear that you were pleased with the service and communication prior to manufacture, and that our team was able to confirm the dimensions and technical specifications with you. It’s great to know everything met your expectations, and we really appreciate your intention to order from us again in the future.
Best Wishes
Sealed Units Online
Great service
The glass arrived exactly on the given delivery date and was a perfect fit
Easy ordering process and delivered to our rural island location with no additional cost.
6 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Vics,
Thank you for your 5-star review. We're delighted to hear that your glass arrived on the expected delivery date, was a perfect fit, and that you found the ordering process easy. It's great to know it was delivered to your rural island location without any additional cost. We really appreciate your feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Best sealed unit supplier
It's such an easy process on the website, just measure your old sealed unit enter the details and wait for the unit to be delivered. Good quality and great delivery service. My go to sealed unit supplier
4 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Phillip,
Thank you for your 5-star review. We're delighted to hear that you found the website process easy to use and straightforward, and that your unit arrived in good time with excellent quality. It's great to know we’re your go-to supplier for sealed units. We really appreciate your continued support and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Very pleased…
Fantastic experience with this company hassle free all the way
1 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Margaret,
Thank you for your 5-star review. We're delighted to hear you had a fantastic, hassle-free experience with us from start to finish. We really appreciate your feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Good company good priduct
Very good communication and excellent support. Sent the measurements. Came exactly as the measurements. Ot did take 5 weeks to arrive but they do state that when you order. Product was perfect quality.
22 May 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Gavin,
Thank you for your 5-star review. We're delighted to hear that you were pleased with the communication, support, and the quality of the product, and that your unit arrived exactly to the measurements provided.
We also appreciate your understanding regarding the lead time, and we're glad everything arrived as expected. Thank you for your feedback, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Easy ordering
Easy ordering. Easy payment. Good value. Fast turnaround and delivery.
Very happy with the service. Thank you.
31 May 2026
Unprompted review
Reply from SealedUnitsOnline
Hi,
Thank you for your 5-star review. We're delighted to hear that you found the ordering and payment process easy, and that you were pleased with the value, turnaround time, and delivery. We really appreciate your feedback and are very glad you're happy with the service. We look forward to serving you again in the future.
Best Wishes
Sealed Units Online
Reply from SealedUnitsOnline
Hello,
Thank you for your 5-star review. We're delighted to hear that everything was perfect from start to finish and that you'd be happy to use us again. Your feedback is greatly appreciated, and we look forward to serving you in the future.
Best Wishes
Sealed Units Online
Totally accommodating service.
Totally accommodating when I asked for a delay in delivery. Excellent product and easy to order, price good too.
16 June 2026
Unprompted review
Reply from SealedUnitsOnline
Hi Tim,
Thank you for your 5-star review. We're delighted to hear that you found us accommodating with your delivery request and that you were pleased with the product, ordering process, and pricing. We really appreciate your feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online
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