I am a Sole Trader one man band and business can be difficult at the best of times.. When issues arise it seems to be a growing trend finding difficulties having these large organisations to be unde... See more
Company replied
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Review summary
Based on reviews, created with AI
What people talk about most
Based on these reviews
We had a new window installed by Anglian. A few months later, we noticed that bricks above the window had started to slip downwards and that the internal masonry was also damaged. We informed Anglian... See more
Company replied
Been dealing with alistair and couldn’t have asked for any better service, it’s been easy and quick getting on board with fensa
Company replied
Contacted FENSA to help with a missing certificate I was trying to trace for a property I was purchasing. They replied quickly and were very helpful.
Company replied
Company details
Information provided by various external sources
FENSA provides all the proof you need that replacement window & door installations meet Building Regulations and are registered with Local Council.
Contact info
Rushworth Street 40, SE1 0QP, London, United States
- www.fensa.org.uk
4.2
Great
127 reviews
Replied to 83% of negative reviews
Typically replies within 1 month
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
I’ve just become FENSA registered
I’ve just become FENSA registered — a big milestone for me.
A huge thank you to everyone I’ve worked with along the way. Your support and guidance have been incredibly helpful, and I truly appreciate it.
April 15, 2026
Unprompted review
Reply from FENSA Limited
Dear Rafal,
Many thanks for taking the time to post this review, we are delighted to welcome you to FENSA and we are so pleased to hear of your positive experience with us. We will pass your comments onto the wider team.
Kind Regards
The FENSA Team
Fensa supported me in communication…
Fensa supported me in communication with a difficult window company who had made numerous faults with installation and had reluctance to rectify. They supported me in getting the company to address the issues
April 14, 2026
Unprompted review
Reply from FENSA Limited
Dear Ms Clegg,
Many thanks for taking the time to post this positive review, supporting homeowners is at the heart of what we do and we are happy to have been able to assist you.
Kind Regards
The FENSA Team
I am a Sole Trader one man band and…
I am a Sole Trader one man band and business can be difficult at the best of times.. When issues arise it seems to be a growing trend finding difficulties having these large organisations to be understanding or sympathetic but in the case of Fensa it’s not so..
They treat you like a human being and listen.. I’ve been with them a long time and never really had an issue.
I rarely write reviews but have made an exception this time as I believe the staff at Fensa deserve praise..
April 9, 2026
Unprompted review
Reply from FENSA Limited
Dear William,
Thank you very much for taking the time to post this review and for your kind feedback. We are delighted to hear about your positive experience with us and we thank you for your continued support. We will pass on your comments to the wider Team.
Kind Regards
The FENSA Team
Their inspector arrived on time to…
Their inspector arrived on time to carry out the inspection and when I requested a copy of the report it was delivered immediately.
April 1, 2026
Unprompted review
Reply from FENSA Limited
Dear Ms Jennings,
Many thanks for your kind feedback, it helps us continue delivering the best service possible. We are happy to hear of your positive experience with us.
Kind Regards
The FENSA Team
Information is available Quick
April 9, 2026
Unprompted review
Reply from FENSA Limited
Dear Mr Spencer,
Thank you for leaving us this positive review, we value your feedback.
Kind Regards
The FENSA Team
Reply from FENSA Limited
Dear Berben,
Many thanks for taking the time to leave this wonderful 5 star review. We are delighted to hear about your positive experience with us. We will pass your comments onto the wider FENSA team.
Kind Regards
The FENSA Team
Harnam was exceptionally helpful with…
Harnam was exceptionally helpful with my request and went the extra mile to help. Adebola followed up the paperwork to ensure my query was completed. Thank you both
April 1, 2026
Unprompted review
Reply from FENSA Limited
Thank you for your kind feedback Dawn and Martin. We're delighted to hear about your positive experience with FENSA. We will pass your comments on to Harnam and Bola and the wider FENSA team.
Kind Regards
The FENSA Team
Very quick to reply
Very quick to reply and sorted my issue straight away
March 25, 2026
Unprompted review
Reply from FENSA Limited
Dear Ms Price,
Thank you for taking the time to leave a review, its great to know you are happy with your experience.
Kind Regards
The FENSA Team
I would not use any other
Very please will all that FENSA do and how helpful and friendly they are, I have had a few very small problems over the past twenty odd years I have been with them but one phone call and things are sorted immediately.
Thank you FENSA keep up the good work.
March 25, 2026
Unprompted review
Reply from FENSA Limited
Dear Mr Bromilow,
Thank you so much for this kind feedback, we really appreciate you taking the time to leave a review. We are so pleased to have met your expectations and we will pass your comments on to the wider team. Thank you for your support.
Kind Regards
The FENSA Team
I chased up my fensa certificate but…
I chased up my fensa certificate but found it it had been sent to the wrong address. They quickly resent but said it'll take 10 days, so asked if l could have it emailed to me and they did that, as l needed it quicker. I was ever so grateful for their help.
March 23, 2026
Unprompted review
Reply from FENSA Limited
Many thanks for your positive review, we are so pleased to have been able to assist. We will pass your comments on to the wider team.
Kind Regards
The FENSA Team
Jenifer
Jenifer, the consultant was very helpful and prompt with her advice, resulting in her providing all the contact details I needed. An extremely helpful a d FREE service.
March 17, 2026
Unprompted review
Reply from FENSA Limited
Dear Mrs Penn,
Many thanks for sharing your positive feedback, we are delighted we were able to assist. We will pass your comments onto Jen and the wider team.
Kind regards
The FENSA Team
Things were sorted very quickly
March 12, 2026
Unprompted review
Reply from FENSA Limited
Dear Mr Harrison,
Thank you for your feedback, we are happy to have met your expectations.
Kind Regards
The FENSA Team
Misuse of FENSA membership
I engaged a glazier who did not understand warranties but waved his FENSA certificate at me. I told him this was not a warranty and covered customers only in case of his insolvency. I reported this to FENSA and asked why they approve traders who have no idea what FENSA does. I received no response after three letters. Seems that FENSA and ignorant traders are well matched.
December 9, 2025
Unprompted review
Reply from FENSA Limited
Dear Ms Iordanescu,
We are very sorry to hear that on this occasion, we haven’t provided the service that we pride ourselves on. Please call our dedicated customer team on 020 7645 3700 to discuss how we can rectify this.
Kind Regards
The FENSA Team
Reply from FENSA Limited
Many thanks for posting this review. Its great to know you are happy with your experience.
Kind Regards
The FENSA Team
Enquired re a copy certificate
Enquired re a copy certificate. Swiftly dealt with by a very pleasant gentleman who was both polite and clear in his advice. We had passed the period of a free replacement and were directed to the website where we would be able to purchase. Gave me time to write down the website address and explained what information to provide.
Would recommend using them again
February 18, 2026
Unprompted review
Reply from FENSA Limited
Dear Mr & Mrs Drury,
Many thanks for your kind feedback, we are delighted to hear about your positive experience with FENSA and we will pass on your comments to the wider team.
Kind regards
The FENSA Team
Contacted FENSA to help with a missing…
Contacted FENSA to help with a missing certificate I was trying to trace for a property I was purchasing. They replied quickly and were very helpful.
February 4, 2026
Unprompted review
Reply from FENSA Limited
Dear Ms Benson,
We really appreciate you taking the time to leave a review, its great to know you are happy with your experience, thank you for choosing FENSA.
Kind regards
The FENSA team
Jack in technical support was…
Jack in technical support was unbelievably informative and helpful throughout the whole process of having the problems with
My windows and installers resolved.
January 23, 2026
Unprompted review
Reply from FENSA Limited
Dear Mr Broom,
Thank you for your kind feedback, it means a lot to us and helps us continue delivering the best service possible. We will pass your comments onto Jack and the wider team.
Kind regards
The FENSA team
The support team was really helpful
The support team was really helpful
January 29, 2026
Unprompted review
Reply from FENSA Limited
Dear George,
Thank you for your kind feedback, we are delighted to have met your expectations.
Kind regards
The FENSA team
Prompt useful reply
Prompt reply with additional useful information.
January 28, 2026
Unprompted review
Reply from FENSA Limited
Dear Jenny,
Thank you for your kind feedback, its great to know you're happy with your experience. Thank you for choosing FENSA.
Kind regards
The FENSA team
RISA authentication
Having received an unsolicited email apparently from RISA, who conduct inspections for FENSA, requesting access to my property at short (a couple of days) notice, I wanted to confirm it was genuine. I found no link to RISA's website from FENSA's. When I emailed enquiries the automated reply said I would receive a response within three working days which would have been too late. I only got voicemail when I rang but despite leaving no message someone called me back confirming verbally and by email the RISA contact was genuine.
January 26, 2026
Unprompted review
Reply from FENSA Limited
Dear Paul,
We really appreciate you taking the time to leave a review, we are glad we were able to assist, supporting homeowners is at the heart of what we do.
Kind regards
The FENSA team
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