Bygone Master Installer

Sash Windows - Master Installers - Barnet Window Company

Since 1987, the family-run Barnet Window Company has been providing the local community with the very best in home improvement.


Our attention to detail allows us to offer a highly personal service every step of the way from our advisors who are specialists in their field to our experienced craftsmen who carry out the installation.

There will be no pressure when you receive a visit from one of our specialist Bygone sash window advisors, instead you will receive all the information and guidance you require for your specific requirements.

We can provide references from local customers to set your mind at ease and rest assured that all our tradesmen and fitters are inspected by the BSI and hold the Kite Mark Licence, a certificate that guarantees their competency.

Our tradesmen and fitters are all directly employed by us, which means they always work to very high standards.

Master Framer - Sash Windows - Barnet Window Company
Master Framer - Sash Windows - Barnet Window Company


Fast Response: We guarantee to return your calls within 24 hours to be with you within 15 minutes of our scheduled appointment time and we guarantee to carry out any service calls on your installation within seven days of your call.

Experienced and polite tradesmen: Our directly employed tradesmen and fitters will always arrive on time and be polite, tidy and respectful of you and your home.

Trusted, local family company: You will have the security of dealing with a family company that has been serving local people for 34 years. You can get references from local people and actually see the work we have done for them, giving you the confidence that your installation will be carried out to the same high standards.

Premium Products: Because we know only the very best will do for your home, we will only ever supply top quality, premium products such as timber alternative box sash windows from The Bygone Collection, manufactured by Masterframe, authentic timber-alternative windows and doors by Evolution, Origin bi-folding doors and steel replacement windows and doors from Aluco. These are four of the most highly respected manufacturers in the country so you will get some of the finest products available, that will look better and last longer, adding real value to your investment in your home.

Peace of mind: A team of people with a combined 154 years’ experience means you get knowledge, and expertise you can trust. With over 6,768 replacements completed in the last 34 years, you can trust Barnet Window Company to deliver the look you want, professionally, with complete peace of mind and safe in the knowledge that your home and investment are a top priority to our business.

BSI Kitemark: We are a proud member of an exclusive group of companies nationwide, who hold the prestigious Kitemark for window installations.

Which Trusted Trader: We are delighted to be part of the ‘Which Trusted Trader’ scheme that recognises reputable traders

Sash Windows - Master Installers - Barnet Window Company


“The entire experience has been totally trouble free. From the first visit to discuss our options to the final fitting. There has been no pressure and the work was carried out efficiently and politely. I would have absolutely no hesitation in recommending this company.”
Which? Trusted Trader Consumer posted on 15/07/2021

“Very impressed with the work they carried out. Professional and friendly from office staff to installer. If you need new windows I would look no further and would highly recommend to anyone. Being a family business and not a big company says it all.”
Which? Trusted Trader Consumer posted on 24/03/2021

“Recently had sash windows replaced. Delighted with them. They are in keeping with the traditional design of an Edwardian period property and enhance this. The time schedule was adhered to and there was excellent communication throughout from start to completion of the job. I felt the price was fair for the quality of the product and workmanship. The personnel from the company were very helpful, responsive to queries and prompt to reply. The workmanship is also excellent – the finished product looks beautiful.”
Which? Trusted Trader consumer posted on 07/09/2020

Sash Windows - Master Installers - Barnet Window Company


Because we believe in offering our customers only the very best quality sash windows we have been Master Installers on the Bygone approved network since 2001.

Whether you have a period style or new build, modern and contemporary home, we have a Bygone sash window to suit. You have a choice of three different specifications, Symphony, Harmony and Melody and we can offer advice and take you through the differences to help you choose the right window for your home.

Timber alternative Bygone sash windows not only look like timber originals but they are also incredibly low maintenance and are therefore an excellent investment. They come with a host of accreditations, a full 12 year guarantee and all window choices are PAS24/Secured by Design as standard for extra peace of mind.

Coloured windows are very much on trend and Bygone sash windows can be colour matched to all leading brand paint supplier palettes to suit your individual preference.

For more information on the Bygone Collection or to arrange a free quotation, please speak to our friendly sales team.