SealedUnitsOnline Reviews

3,535

•

4.6

Glass manufacturer

Write a review Visit website

Write a review

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Considering 558 reviews, reviewers overwhelmingly had a great experience with this company, praising the overall service and reliability. Customers frequently mention that the online ordering system is straightforward, offering a comprehensive choice of products at very competitive prices. Consumers are also very pleased with the final results, noting that the delivered items are of excellent quality and match the exact dimensions requested. Some reviewers were not happy with the communication regarding delivery dates, experiencing longer waiting times than anticipated or unannounced arrivals. A few people also mentioned occasional issues with damaged items arriving or delays in getting timely responses from customer support when tracking orders.

What people talk about most

Delivery service

Reviewers mention positive feedback about delivery service, noting that items frequently arrive on time and... See more

Product

Consumers find product to be positive, highlighting the great quality and perfect fit of the window units.... See more

Order

Users describe positive interactions with order, highlighting that the online ordering process is very... See more

Quality

Customers consistently report satisfaction and appreciation regarding product quality, noting that items... See more

Service

Clients share positive opinions on service, describing it as professional and hassle-free. Reviewers... See more

Reviews shaping this summary

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

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

Company replied

Company details

Glass manufacturer

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

5-star

4-star

3-star

2-star

1-star

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

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

People also looked at

Sealed Units Direct

www.sealedunitsdirect.co.uk

4.9

(153)

Glass2go

glass2go.co.uk

3.8

(116)

A&E Glazing LTD

aeglazing.co.uk

4.7

(161)

Secondary Glazing Online

secondaryglazingonline.co.uk

4.4

(11)

Made to Measure Glass

madetomeasureglass.co.uk

4.8

(2k)

EasyFit Window Company Ltd

easyfitwindow.com

3.7

(53)

Glasstops Uk

www.glasstops.co.uk

4.7

(45)

SecondaryDIYGlazing

www.secondarydiyglazing.com

4.7

(906)

4.6

All reviews

(3,535)

517 reviews in the last 12 months

Write a review

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Jul 14, 2026

Excellent product

Excellent product but the website and billing software need a bit more work on them. Nice people to deal with too.

18 June 2026

Unprompted review

Reply from SealedUnitsOnline

Jul 14, 2026

Hi Sean,

Thank you for taking the time to leave us your feedback

We're pleased to hear that you were happy with the quality of our product and that you found our team nice to deal with. Providing excellent products and helpful service is very important to us.

We appreciate your comments regarding the website and billing process. Customer feedback is extremely valuable, and we will take your suggestions on board as we continue to review and improve our systems.

We hope to have the opportunity to provide you with an improved experience in the future.

Best Wishes
Sealed Units Online

Jul 14, 2026

Super

I ordered the glass units and was told delivery could be any time in the next 3 weeks. The glass was deluvered wuthin 2 weeks!!

Glass fit perfectly, was clearly labelled and was easy to fit.

Many thanks

14 July 2026

Unprompted review

Reply from SealedUnitsOnline

Jul 14, 2026

Hi Andrew,

Thank you for your fantastic 5-star review!

We're delighted to hear that your glass units arrived even sooner than expected and within the estimated delivery timescale. It's great to know that the units were clearly labelled, fitted perfectly, and were easy to install.

We really appreciate your kind feedback and hope to be of service again in the future.

Best Wishes
Sealed Units Online

Jul 14, 2026

Excellent company to use

Have used seal units online many times and they are always perfectly sized and delivered in the time frame given. Can’t fault them at all. The ordering process is so simple as well

9 June 2026

Unprompted review

Reply from SealedUnitsOnline

Jul 14, 2026

Hi Ben,

Thank you for your continued support and for taking the time to leave us such a fantastic 5-star review!

We're delighted to hear that you've used Sealed Units Online many times and that we've consistently delivered perfectly sized units within the promised timescale. Knowing that you can't fault our service is wonderful feedback for our whole team.

It's also great to hear that you find our ordering process simple and straightforward. We really appreciate your loyalty and recommendation, and we look forward to supplying your sealed units for many more projects in the future.

Best Wishes
Sealed Units Online

Jul 14, 2026

Great window made to the exact size

Great window made to the exact size. Delivered in the correct time scale. Definitely recommend and use them again

10 July 2026

Unprompted review

Reply from SealedUnitsOnline

Jul 14, 2026

Hi Ian,

Thank you for your fantastic 5-star review!

We're delighted to hear that your replacement window was manufactured to the exact size you needed and delivered within the promised timescale. It's great to know everything met your expectations.

Thank you for your recommendation, we really appreciate your support and look forward to helping you again with any future projects.

Best Wishes
Sealed Units Online

Jul 13, 2026

Dependably excellent.

Just received my 3rd unit over the last 6 years to replace blown windows in my home. It’s so great to have a truly dependable company for these resources. They always deliver exactly what was ordered, when they say they will with care and quality.

13 July 2026

Unprompted review

Reply from SealedUnitsOnline

Jul 14, 2026

Hi Andy,

Thank you for your continued support and for taking the time to leave such a fantastic review.
We're delighted to hear you've trusted us over the years and that you've been happy with the quality of our products and service. We really appreciate your loyalty and look forward to helping you again in the future.

Best wishes,
Sealed Units Online

Jul 12, 2026

Very good service

Very good service. We had slight problem with unit after it had been installed for 10 months. Sealed Units Online replaced it with no quibble and sent out a replacement promptly. Great communication.

14 May 2026

Unprompted review

Reply from SealedUnitsOnline

Jul 13, 2026

Hi Ralph,

Thank you for taking the time to leave us a review.
We’re pleased to hear that we were able to resolve the issue with your unit quickly and provide a replacement without any hassle.
Thank you again for choosing us.

Best wishes,
Sealed Units Online

Jul 9, 2026

Another dissatisfied customer

Happy to take my money. Much less interested in supplying the goods I paid for, answering my emails or phone calls. Gave up trying after 3 weeks.

16 June 2026

1 July 2026

Unprompted review

Reply from SealedUnitsOnline

Jul 2, 2026

Hi!
We’re really pleased to hear everything met your expectations. Thanks for your feedback.

Best wishes,
Sealed Units Online

Jun 29, 2026

IS THIS A SCAM ?

You allege the driver tried to deliver the product but we are a BUSINESS so you should not expect the CEO to leave his meetings to receive a phone call on his PERSONAL MOBILE.

This is said on the assumption that you did attempt to deliver and that is assuming you had the right product as we don’t know that.

We give you ONE FINAL CHANCE for delivery by the 3rd of July and if you fail we will charge back the credit card and raise an official complaint with the Credit card merchant.

The LEGAL STANDING of our chargeback is as follows

1. We ordered product and it has not been handed over to us. If it is not handed over personally to us we CANNOT PAY for what we have not received.
2. Your state the product was made to order, why should a redelivery from Ipswich to London take another 2 weeks ?
3. We have tried to contact you and no one picks up your office phone.
4. We have emailed you and You have given us three different dates for delivery each one contradicting the other.
5. Due to all of the above the conduct of your service makes us a suspicious that this is a scam.

Our office number is 0207 277 8878 and we have a great big sign outside our building stating GADMON INDUSTRIES. We are open from 8 – 4.30pm

If you genuinely have product to deliver we give you till July 3rd after which will charge back and possibly SUE YOU for consequential DAMAGES for the delays as a result of the SHODDY service we have received.

Leke

29 June 2026

Unprompted review

Jun 29, 2026

Amazing customer service I would highly recommend them.

17 June 2026

Unprompted review

Reply from SealedUnitsOnline

Jun 23, 2026

Hi Ian,

Thank you so much for your kind words and recommendation! Your feedback means a great deal to us, and we truly appreciate your support. We look forward to assisting you again in the future.

Best wishes,
Sealed Units Online

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look