SealedUnitsOnline Reviews 

3,535
TrustScore 4.5 out of 5

4.6

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

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

  1. 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

4.6

Excellent

TrustScore 4.5 out of 5

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.

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

Rated 5 out of 5 stars

Easy to use site

Easy to use site, great delivery service, perfect fit. Thank you.

4 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Teresa,
Thank you for your 5-star review. We're delighted to hear that you found our website easy to use, were pleased with the delivery service, and that the product was a perfect fit. Your feedback is greatly appreciated, and we're glad everything met your expectations. Thank you for choosing us, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

I needed some replacement windows for…

I needed some replacement windows for blown units on my conservatory. I decided to place an order with sealed units online. The ordering process was easy and the units turned up within the expected timeline. They fitted perfectly and were exactly to the dimensions are requested. As I have a few more old Windows which are starting to blow I will be coming back to sealed units online to make further purchases in the future.

5 June 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Steve,
Thank you for your 5-star review. We're delighted to hear that your replacement windows were exactly as ordered, fitted perfectly, and arrived within the expected timeframe. It's great to know the ordering process was easy and that you're pleased with the result. We really appreciate your continued custom and look forward to helping you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Clearly good

I have had seven previous units from Sealed Units Onnline and returned to them this time as the quality and service is excellent. I would recommend them to anyone wanting this type of service.

15 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Dennis,
Thank you for your 5-star review and continued custom. We're delighted to hear that you've returned to us after several previous orders and continue to be impressed with both the quality of our products and the level of service provided. Your recommendation means a great deal to us, and we truly appreciate your support. We look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Easy online ordering process and great prices

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 us.
Only minor negatives were the longish lead times (I guess a result of their success) and communication on delivery date, which slipped a bit from original estimate but I didn't receive any email updates. Only found out delivery was the following day after I phoned to check progress on the order.
Despite that though will definitely be using them again.

14 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Kev,
Thank you for your detailed 5-star review. We're really pleased to hear that you found the ordering process easy, the pricing competitive, and that the sealed unit was made accurately to your measurements. It's also great to know the delivery driver was helpful and assisted with bringing the unit into your home.

We appreciate your honest feedback regarding lead times and communication around delivery dates. While demand can sometimes extend timeframes slightly, we understand how important clear and timely updates are, and your comments will be shared with our team to help us improve this area.

We're grateful for your continued custom and look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

​I have used Sealed Units Online quite…

​I have used Sealed Units Online quite a few times over the years, and their service has always been absolutely fantastic. Their website is relatively easy to use, and they provide great help and advice on how to measure your windows properly. I am certain that a blown or damaged piece of glass could easily be replaced by anyone with even slight DIY skills. Because of this, I would thoroughly recommend DIYers to use this service instead of paying a lot of money for a professional to replace their glass. They always deliver on the exact day that they say they will, and the glass is consistently clear and well-made. Their service is truly top-notch, and I would recommend this company one hundred percent.
SUO 6

15 June 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Graham,
Thank you for your 5-star review and for your continued custom over the years. We're delighted to hear that you've consistently found our service and products to be of a high standard, and that you find our website easy to use with helpful guidance for measuring and fitting.

It's great to know the units have always arrived on the expected delivery date and met your expectations for quality and clarity. We really appreciate your recommendation and your kind comments about the service being suitable for DIY installation. Your support means a great deal to us, and we look forward to helping you again in the future.
Best Wishes
Sealed Units Online

Rated 4 out of 5 stars

Easy ordering and good quality

Easy ordering and arrived earlier than expected (opted for free 21 day delivery). Units arrived clean, well taped and appear well made. Only issue, communication - acknowledgement of order and delivery notification could be automated. Customer service responded promptly.

17 June 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi,
Thank you for your review and for your feedback. We're really pleased to hear that you found ordering easy and that your units arrived earlier than expected, well packaged and to a good standard.

We also appreciate your comments regarding communication and order notifications. We understand how useful automated updates and clearer delivery communication would be, and your feedback has been noted as we continue to improve our service in this area. It's great to hear our customer service team responded promptly when needed.

Thank you again for your support – we're glad overall you were happy with your order and hope to serve you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Very easy website

Very easy website, making ordering a breeze. Delivered exactly when they said. Really helpful customer service.
A+++++ from me!!

29 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Gary,
Thank you for your 5-star review. We're delighted to hear that you found our website easy to use, the ordering process straightforward, and that delivery was on time as promised. It's also great to know our customer service was helpful throughout. We really appreciate your kind feedback and support, and look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Great service and Quality glazing

Great service and product clear communication through ordering process and on time delivery 👏

12 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Dean,
Thank you for your 5-star review. We're delighted to hear that you were pleased with the service, product, clear communication throughout the ordering process, and on-time delivery. We really appreciate your feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 4 out of 5 stars

Ordered a pane of glass cut-to-size

Ordered a pane of glass cut-to-size. Took a while to arrive and didn’t get notification but was exactly what I needed so worth the wait.

22 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Keith,
Thank you for your review and for your feedback. We're pleased to hear that the glass was cut to size exactly as needed and met your expectations once it arrived.

We also appreciate your comments regarding the lead time and lack of delivery notification. We understand how important clearer updates are, and this feedback has been noted as we continue working to improve our communication and service.

Thank you again for your support – we're glad the product was worth the wait and hope to serve you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Used before a year ago.

Used before a year ago.. excellent seller, and reliable. For all sealed units they are great. 10/10

18 June 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Stephen,
Thank you for your 5-star review. We're delighted to hear that you were pleased with the service and product, and that communication throughout the ordering process was clear and helpful. It's also great to know delivery arrived on time as expected. We really appreciate your kind feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Reliable company and good quality…

Reliable company and good quality product.
I ordered replacement double glazing panels. All arrived as promised by courier. Very pleased with the product. I would not hesitate to use these guys again

3 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Wendy,
Thank you for your 5-star review. We're delighted to hear that you found us reliable and were pleased with the quality of your replacement double glazing panels. It's great to know everything arrived as promised and met your expectations. We really appreciate your feedback and your recommendation, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Amazing units and free delivery great…

Amazing units and free delivery great customer service too A+++++

15 June 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hello,
Thank you for your 5-star review. We're delighted to hear that you're pleased with the quality of the units, our free delivery service, and the customer service you received. Your kind feedback is greatly appreciated, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Straightforward ordering process

Straightforward ordering process and delivery well within the timeframe promised

2 June 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Tod,
Thank you for your 5-star review. We're pleased to hear that you found the ordering process straightforward and that your delivery arrived well within the promised timeframe. Your feedback is greatly appreciated, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Great Service

Second order I’ve placed, delivered on time and in perfect condition.
More orders to follow.

17 June 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Paul,
Thank you for your 5-star review. We're delighted to hear that your second order arrived on time and in perfect condition. It's great to know you're happy with the service and product, and we really appreciate your continued custom. We look forward to receiving your future orders.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

New for old as good as new

25 year old house glazing and 15 year old conservatory in south facing sun exposure takes its toll on sealed units. Getting replacements for failed units on a DIY basis for size and appearance is key and Sealedunitsonline have been great suppliers for a couple of years now. Good contact before manufacture to get exactly what you need give confidence

18 March 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Mel,
Thank you for your 5-star review and for your continued custom over the years. We're delighted to hear that we've been able to support you with reliable DIY replacement solutions for your glazing, particularly given the challenges of sun exposure and ageing units.

It's great to know that the quality, sizing accuracy, and clear communication before manufacture have given you confidence in your orders. We really appreciate your recommendation and look forward to helping you again with any future replacements you need.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

I ordered a one double glazed unit

I ordered a one double glazed unit a few months ago ago. I was happy to wait just over 3 weeks to get a free delivery cost. The dimensions of glazed unit was exactly to my dimensions even although it could’ve been + or - 1 or 2mm.
Delivery was good by their own van /driver. So overall a very good experience and would definitely use this company again and recommend them 100%.

6 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi John,
Thank you for your 5-star review. We're delighted to hear that you were happy with the service and that the double glazed unit was made accurately to your measurements. It's great to know the delivery went smoothly and that you were pleased with the free delivery option and overall experience.

We really appreciate your recommendation and your support, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Great window

Great window, best price I could find anywhere online.

17 June 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Greg,
Thank you for your 5-star review. We're delighted to hear that you're pleased with your window and found us to offer the best price available online. Your feedback is greatly appreciated, and we look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Replacement glass for broken window…

Replacement glass for broken window panes, made to order, exactly as described and delivered on time

1 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Derek,
Thank you for your 5-star review. We're delighted to hear that your replacement glass was made to order exactly as described and delivered on time. Your feedback is greatly appreciated, and we're pleased everything met your expectations. We look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Great service

Great service. Nice and easy to order on the website and glass dropped off to my door step. Would definitely use again in the future.

30 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Pete,
Thank you for your 5-star review. We're delighted to hear that you found the website easy to use and that your order was delivered right to your doorstep. It's great to know you were pleased with the service overall. We really appreciate your feedback and look forward to serving you again in the future.
Best Wishes
Sealed Units Online

Rated 5 out of 5 stars

Easy from start to finish

Easy from start to finish. Great price and great delivery!

15 May 2026
Unprompted review
SealedUnitsOnline logo

Reply from SealedUnitsOnline

Hi Trev,
Thank you for your 5-star review. We're delighted to hear that you found the whole process easy from start to finish and that you were pleased with both the price and delivery. Your feedback is greatly appreciated, and we look forward to serving 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