I could not find one of two Certass certificates. When I went onto the website it was not available/recognised because it was older than 6 months. I sent an email reply with full details which was a... Toon meer
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Lees wat reviewers zeggen
We have been Certass installers for 12 years. They are trying really hard to bring the whole double glazing sector out of the 'cowboy' reputation... It means more work for us as a company but our cus... Toon meer
Bedrijf heeft geantwoord
Had Installation undertaken by a so called reg. Certass installer. Emailed them 3-4 times through their website, no response, called left a series of messages requesting a call, again no response. The... Toon meer
I needed to replace lost CERTASS certificates for windows installed some time ago at my elderly mother's home. CERTASS staff took me from that start of the process, to the end result in about half an... Toon meer
Bedrijf heeft geantwoord
Bedrijfsgegevens
Geschreven door het bedrijf
Certass is a government-authorised Competent Person Scheme providing a trusted alternative to building control. We help professional glazing businesses self-certify that their work complies with Building Regulations. For homeowners, Certass offers competent, regularly assessed installers. Installations classed as notifiable work receive a Compliance Certificate to confirm compliance with current regulations. For Homeowner Advice, visit: www.certifiedcompetent.co.uk
Contactgegevens
17 main street, NE20 9NH, newcastle-upon-tyne, Verenigd Koninkrijk
- info@certass.co.uk
- www.certass.co.uk
4,1
Goed
100 reviews
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Heeft 66% van zijn negatieve reviews beantwoord
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very helpful
very helpful staff if you have an issue with certass, prompt assistance and very friendly attentive staff, Lorna and jacquline are very good at going above and beyond.
26 januari 2026
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Amanda,
Thank you so much for your kind words. We’re delighted to hear you found the team so helpful and friendly, and that Lorna and Jacqueline were able to go above and beyond to support you.
We’ll be sure to pass your feedback on to them.
Best wishes,
The Certass Customer Experience Team
Excellent service
I have found this company so helpful with my enquiry just to say an excellent service thank you.
27 januari 2026
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Tracey,
Thank you for your lovely review. We’re really pleased we could help with your enquiry and that you found the service excellent.
Thanks again for taking the time to share your feedback.
Best wishes,
The Certass Customer Experience Team
After finding out that the window…
After finding out that the window company had not given me the certificates when they were installed a few years ago & now gone out of business, I decided to try and access them online. After submitting the request, I received a response from Jacqueline who was really amazing, helpful, responsive & polite, you could not have asked for more help. I was not expecting it to be easy but Jacqueline certainly made it. 100% satisfied with the service received.
27 januari 2026
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Paul,
Thank you so much for your lovely review. We’re really pleased Jacqueline was able to help you access the certificates and make the process straightforward, especially given the installer is no longer trading.
She’ll be delighted to read your kind words and we’ll be sure to pass them on. Thanks again for taking the time to share your experience.
Best wishes,
The Certass Customer Experience Team
First class service from Joanne
First class service from Joanne. From phoning to request a copy of a CERTASS certificate to receiving the certificate by email was less than an hour. She was also able to assist with the details of the guarantee providers. Absolute star!
26 januari 2026
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Lorna,
Thank you so much for your kind review. We’re delighted Joanne was able to help so quickly and get everything over to you within the hour.
She’ll be thrilled to see your feedback and we’ll be sure to pass it on.
Best wishes,
The Certass Customer Experience Team
Fast Response and Useful Information
Jacqueline responded to my concerns regarding certification for outbuildings very promptly and was able to give me really good advice, putting my mind at rest. Great customer service.
22 januari 2026
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Helen,
Thank you for your lovely feedback. We’re really pleased Jacqueline could respond quickly and give you the reassurance you needed.
Great to hear your mind was put at rest, that’s exactly what we aim for.
Best wishes,
The Certass Customer Experience Team
Limited Accountability in CERTASS Complaint Handling
I raised a formal complaint with CERTASS regarding one of its registered traders, Acorn Glass (also known as Pinemarks Projects), after experiencing significant issues with the work carried out and being left several thousand pounds out of pocket. CERTASS dismissed my complaint based on information provided by the trader that I believe to be inaccurate, without carrying out what I would consider a full and fair investigation.
I specifically requested evidence to support the trader’s claim that my installation formed part of a garage conversion rather than a straightforward replacement of an existing window and door. To date, no such evidence has been provided. This has left me concerned about the robustness of CERTASS’s complaint‑handling process and the level of oversight applied to its registered members. In my experience, there appeared to be limited checks or balance to ensure accountability or to protect consumers when disputes arise. CERTASS appeared to accept the trader’s assertions at face value, even though no supporting documentation was produced.
My intention in sharing this is simply to reflect my personal experience of the process and the difficulties I encountered in seeking a transparent and balanced review of my complaint.
21 januari 2026
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Nicky,
We’re sorry to hear that you’re unhappy with the outcome and appreciate how frustrating this situation has been for you.
To clarify for anyone reading, Certass can only investigate complaints relating to work that falls within the scope of our Competent Person Scheme. Our scheme covers the replacement of windows and doors in existing domestic dwellings. It does not extend to garage conversions or wider building works, which must be approved and signed off by Local Authority Building Control or an approved inspector.
In this case, we contacted the installer directly and were advised that the work formed part of a garage conversion. This was confirmed by photo evidence. As this type of work sits outside Certass’ legal remit, we were unable to investigate the complaint further under the scheme or issue certification. This position was explained during our correspondence and is consistent with how all Competent Person Schemes are required to operate.
We understand this was not the outcome you were hoping for, but the complaint was not dismissed for convenience or lack of interest — it was assessed against the limits of what Certass is legally permitted and licensed to regulate. Where work falls outside our scope, the appropriate route is through Building Control and, where relevant, Trading Standards or other regulatory bodies.
If you would like us to clarify Certass’ role or the boundaries of the scheme further, we remain happy to do so via info@certass.co.uk.
Best wishes,
The Certass Customer Experience Team
Quick response by Jacqueline
Quick response by Jacqueline, and admin issue resolved! Great Service, thanks!
8 januari 2026
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Angie,
Thank you for your review. We’re really pleased Jacqueline was able to resolve the admin issue quickly for you, and will make sure we pass that on to her.
Best wishes,
The Certass Customer Experience Team
Whitney White was able to sort my…
Whitney White was able to sort my request immediately. Thank You
2 januari 2026
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Linda,
Thank you for your review. We’re really pleased Whitney was able to sort your request so quickly. We’ll be sure to pass your thanks on to her.
Best wishes,
The Certass Customer Experience Team
Fast efficient responses
It was a pleasure dealing with the Certass team! I emailed the team with the relevant details for two certificates for work done more than 6 months ago. The team (thanks Jacqueline!) emailed me with links for the payment, and less than 30 minutes later I could send the certificates to the solicitors. Brilliant experience.
17 december 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi John,
Thank you for taking the time to leave such a great review. We’re really pleased the team could sort everything quickly for you, especially with solicitors involved.
Jacqueline will be delighted to see your feedback, and we’ll be sure to pass it on. Thanks again for sharing your experience.
Best wishes,
The Certass Customer Experience Team
Prompt and efficient service
I could not find one of two Certass certificates. When I went onto the website it was not available/recognised because it was older than 6 months. I sent an email reply with full details which was automatically acknowledged and the next morning received an email with the certificate attached. very prompt and efficient. Thank you.
16 december 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Mrs S,
Thank you for your review. We’re really pleased the team could help you quickly and get the certificate over to you without any fuss.
We appreciate you taking the time to share your experience.
Best wishes,
The Certass Customer Experience Team
Certass Installers viewpoint
We have been Certass installers for 12 years. They are trying really hard to bring the whole double glazing sector out of the 'cowboy' reputation... It means more work for us as a company but our customers appreciate that we are registered with such a company.
The girls have always been very helpful if I've had any queries.
15 december 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi there,
Thank you so much for taking the time to leave this review and for your continued support over the past 12 years. It really means a lot.
We’re pleased to hear that being Certass registered is valued by your customers and that the team has been helpful whenever you’ve needed support. Feedback like this is hugely appreciated.
Best wishes,
The Certass Customer Experience Team
Recently asked for a copy certificate…
I recently asked for a copy certificate for a window I had replaced. I'm selling my house and couldn't find the original certificate. This service has been really helpful, quick to respond and very friendly too. It's important to ensure you keep your original certificates in a safe place, as copies are a little pricey at £30 each . . but worth it.
11 december 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Julie,
Thank you for your review. We’re really glad we could help you get the certificate you needed, especially with a house sale underway. It’s great to hear the team made the process quick and friendly for you.
Thanks also for your understanding around replacement certificates, and we appreciate you taking the time to share your experience.
Best wishes,
The Certass Customer Experience Team
JO DALE WAS SO HELPFUL ,POLITE
JO DALE WAS SO HELPFUL ,POLITE , AND EXTREMELY PLEASANT.
11 december 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Peter,
Thank you for your lovely feedback. Jo will be delighted to hear this, and we’ll be sure to pass it on to her.
Best wishes,
The Certass Customer Experience Team
Great guidelines to adhere too & the…
Great guidelines to adhere too & the new dashboard is easy to navigate.
9 december 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Adrian,
Thank you for the review.
We appreciate you taking the time to share your experience, and we’re always here if you need anything as you use the system day to day.
Best wishes,
The Certass Customer Experience Team
Search Not Found
Search Not Found
Tried to search to download a compliance certificate but the 'system' couldnt find anything. An live chat with Certass was promptly acknowledged and a copy of the certificate sent on chat. This is how customer service should be, top marks in this instance.
9 december 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi David,
Thank you for your review. Sorry the search didn’t pull anything up for you, but we’re really pleased the live chat team could get the certificate over to you straight away.
Appreciate you taking the time to share your experience, and we’ll feed the search issue back so the online process is smoother.
Best wishes,
The Certass Customer Experience Team
It all worked out...
To the layman like myself, Certass are not as known as Fensa for issuing Building Regs certificates (for double-glazed units) which get sent through the post, so I simply wasn't expecting them to arrive by email and with a time-sensitive link to boot. To be honest, the website suggested that that would be my hard luck (and that I'd have to pay a fee for the 'reissue'), but I got in touch anyway with customer services, and was met with a very understanding response - and certificates - from Jacqueline and her manager. Massively appreciated, and yes, for me that is 5 star service.
4 december 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Stephen,
Thank you so much for your thoughtful review. We’re really glad you got in touch and that Jacqueline and manager were able to quickly sort a certificate re-issue for you.
Appreciate you taking the time to share the detail, and hope it will help others too. We’ll be sure to pass your kind words on to the team.
Best wishes,
The Certass Customer Experience Team
Download Link Not Working
Tried to follow a link to download a compliance certificate but the 'system' would not allow me to do so. An email to Certass was promptly acknowledged and a full response provided within 24 hours, which included a copy of the certificate so no need to download it. This is how customer service should be, top marks in this instance.
28 november 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi there,
Thank you for your review. Sorry the download link didn’t work for you, but we’re really pleased the team could get the certificate to you quickly and make it hassle-free.
We appreciate you taking the time to share your experience, it means a lot to the team.
Best wishes,
The Certass Customer Experience Team
Certificate issued promptly
Certificate issued promptly, and a query dealt with equally rapidly.
27 november 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Les,
Thank you for your review. We’re really pleased your certificate was issued promptly and that your query was dealt with just as quickly.
Thanks again for taking the time to share your experience.
Best wishes,
The Certass Customer Experience Team
Very helpful
I didn't quite understand how Certass fitted in the mix between the Installer and me, and had also lost my certificate!
An email to the generic info inbox was responded to promptly and details of my certificate provided, along with an easy to understand overview of the inter-relationship of Certass, the Installer, the Installer's insurer and me as the customer!
Very helpful!
27 november 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Andrew,
Thank you for the lovely feedback. We’re glad we could clarify how Certass fits alongside your installer and insurer, and help you locate your certificate quickly.
It’s great to hear you found the explanation clear and the service helpful.
Best wishes,
The Certass Customer Experience Team
Responsive, Knowledgeable and Helpful
The system is very straightforward and easy to use. Service wise - I've always found the technical team to be extremely knowledgeable, and customer support is responsive and helpful—Jacqueline, in particular!
27 november 2025
Review zonder uitnodiging
Antwoord van Certass Ltd
Hi Josh,
Thanks so much for your review. We’re really pleased you’ve found the system straightforward and that the technical and customer support teams have been so helpful.
Jacqueline will be delighted by your kind mention — we’ll be sure to pass it on.
Best wishes,
The Certass Customer Experience Team
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