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Bespoke timber sash windows and doors, made in Essex and fitted across London
Key facts
- Trading name
- Prime Sash Windows
- Registered company
- Skylon Joinery Limited
- Company number
- 12946103 (Companies House, status Active)
- Established
- 2020
- Registered office
- Nazeing, Essex
- Areas covered
- London and areas within about 25 miles
- Registration
- Companies House 12946103, Skylon Joinery Limited, active, incorporated 13 October 2020, which trades as Prime Sash Windows. The registered office is in Hatfield, while the workshop is at Leaside Industrial Park, Nazeing. The claim came from an address on the business’s own website domain. Checked 15 September 2026.
- Qualifications
- FENSA registered and PAS 24 security certified (both stated on the business website, not checked by Whito)
- Services
- Timber sash windows, Casement windows, Timber doors, Design and manufacture, Survey and installation
- Phone
- 07842 510060
- Website
- primesashwindows.co.uk
- Listing status
- Verified. The business has claimed this listing and confirmed its details with Whito
- Listing last updated
- 15 September 2026
About Prime Sash Windows
Prime Sash Windows makes bespoke timber sash and casement windows and doors in its own workshop at Nazeing, Essex, and fits them across London and the surrounding area.
The business offers free site surveys within about 25 miles of London and says installation is carried out by FENSA registered teams. It trades through Skylon Joinery Limited, registered in 2020.
What to check before you book
This listing is compiled from public sources, so confirm these directly with the business before any work starts.
- Confirm the business holds the right registration or accreditation for the work, and that it is current.
- Get the quote in writing, and ask whether it includes parts, certification and VAT.
- Ask for proof of public liability insurance before work begins.
- Ask for any certificates relevant to the work once it is done.
Common questions
What areas does Prime Sash Windows cover?
Prime Sash Windows covers London and areas within about 25 miles.
Is Prime Sash Windows registered?
The business states it is Companies House 12946103, Skylon Joinery Limited, active, incorporated 13 October 2020, which trades as Prime Sash Windows. The registered office is in Hatfield, while the workshop is at Leaside Industrial Park, Nazeing. The claim came from an address on the business’s own website domain. Checked 15 September 2026.. Registration can change, so confirm the current registration number with the relevant scheme before you book.
Is this listing verified by Whito?
Yes. The business has claimed this listing, and Whito has confirmed its identity and a working contact. Where a registration scheme is shown above, check the current number on the scheme’s own register before booking. Whito does not publish invented reviews or star ratings.
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Update Prime Sash WindowsThis listing was claimed by the business, which has confirmed its details with Whito. Facts were also checked against public records including, where applicable, the Companies House register. A listing is not a recommendation or an endorsement. Always carry out your own checks before hiring. To correct or update this listing, use the update link above.
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