A little about us

Our story

At Sash Smart London Ltd we’ve been serving customers in and around the London area for over a decade. As a family-run business we’re dedicated to putting the customer first and offer a range of excellent services at very competitive prices.

Everyone in the team at Sash Smart London Ltd is from construction backgrounds and has had experience in everything from carpentry to building timber houses. Together our family-run team hold the following certifications:

  • CITY & GUILDS intermediate qualified on behalf of the Construction Awards Alliance (Distinction in site carpentry at level 2)
  • MTC Qualified

The Team

We offer a comprehensive guarantee on all replacement work and are proud to have many satisfied customers throughout London and the Home Counties. Please feel free to contact our references to find out more about us, including the performance of draught proofing over double glazing. You can even get a true and honest opinion of our company and workmanship.

We aim to complete your installation quickly and efficiently, starting work at 8am sharp. We’ll even arrive earlier if you have work commitments and will work through to 5pm, without disappearing for lunch. We also provide coverings for your furniture and flooring before starting. Any power tools used inside are fitted to vacuum cleaners to minimise dust levels too. We promise to leave the house clean and tidy at the end of each day to ensure you can stay comfortable whilst we are installing your new windows, by minimising disruption as best as possible.

We do hope you give us the opportunity to complete your project and look forward to working with you in the near future

Where we work

Map for website

LondonCentral  –  West London – South West LondonSouth East London

What we do

Repairs & Hardware

We offer many services for your sash windows including cord, spring and box frame repairs, new cills, locks and lifts, but please contact us if you would like something a little more specialist or if there is anything we can help with.

Draught Proofing

Whether we are draught proofing your existing period sashes or your having new like for like sash windows installed they will be routered and integrally fitted with premium quality draught excluders.


Sash Smart London Ltd specialise in the replacement of both Timber and uPVC sash windows, offering single and double glazed options, plus the replacement of sashes into existing box frames.


If you need more background information on glazing, it’s benefits, and any considerations you may need to be aware of, please visit our  FAQs page, or CONTACT US.

The news

What’s Next? get a free online estimate, or if you prefer, let’s talk!