Crown Sash Ltd
Window & double glazing company registered in London, Greater London
Registered address
167-169 GREAT PORTLAND STREET, London W1W 5PF
✓ Active on Companies House
Companies House number17342256
IncorporatedJuly 2026
0 years on the register
0 years on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileNo accounts filed yet · next due April 2028
Also registered for46730 - Wholesale of wood, construction materials and sanitary equipment; 47520 - Retail sale of hardware, paints and glass in specialised stores; 47910 - Retail sale via mail order houses or via Internet
Listed from the public Companies House register, not an endorsement. Quote requests go to FENSA or Certass registered installers covering your postcode, not necessarily this company. Accounts filing category reflects company size under Companies House rules, not service quality. Map location is approximate, based on the registered postcode.
Before you book Crown Sash Ltd
This page confirms the company is on the Companies House register. It does not confirm FENSA or Certass registration, insurance, or trading status. Check those yourself first.
How to vet a window installer before you hire →Need a window installer in London?
Free, no-obligation quotes from FENSA or Certass registered installers near you.
Get Free Quotes →Window help for London
How much does window replacement cost in London?
A single uPVC window in London typically runs £300 to £600 supplied and fitted; a full house of 8 to 10 windows is often £3,000 to £8,000 depending on style (casement, bay, sash-look) and glazing spec. Get two or three written, itemised quotes before agreeing to work.
Do uPVC windows need any maintenance?
Not much, but not none. Wipe the frames a few times a year, lubricate hinges and locks annually, and keep the drainage channels along the bottom of the frame clear so water can't pool and find its way inside. There is no statutory annual service like a boiler needs.
Can I see reviews for Crown Sash Ltd?
Not here. This is a register-based directory, not a review site. Look at independent review platforms, ask the installer for recent local references, and confirm FENSA or Certass registration before any work starts.
Does a listing here mean Crown Sash Ltd is recommended?
No. Companies appear in this directory because they are on the Companies House register under a window/joinery installation trade code. A listing is not vetting, endorsement, or a guarantee that the company is trading or FENSA/Certass registered.
How many window and glazing companies are there in Greater London?
This directory holds 1,616 active window and glazing businesses across 26 towns in Greater London, all from the Companies House register. London accounts for 1,582, among the county's busiest. About 49% of Greater London's registered window and glazing firms were incorporated in the last three years, so weigh incorporation date and FENSA/Certass registration, not just company age.