Duq Building Ltd
Window & double glazing company registered in Luton, Bedfordshire
Registered address
28 CLAYDOWN WAY, SLIP END, Luton LU1 4DU
✓ Active on Companies House
Companies House number16366147
IncorporatedApril 2025
1 year on the register
1 year on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileNo accounts filed yet · next due January 2027
Also registered for16230 - Manufacture of other builders' carpentry and joinery; 41201 - Construction of commercial buildings; 41202 - Construction of domestic buildings
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 Duq Building 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 Luton?
Free, no-obligation quotes from FENSA or Certass registered installers near you.
Get Free Quotes →Window help for Luton
What does this page tell me about Duq Building Ltd?
The registered company name, registered office address, Companies House number and incorporation date, all taken from the public Companies House register. It does not include reviews, prices, staff details, or confirmation that the company is currently trading.
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.
Should I repair or replace my windows?
Repair makes sense for a failed seal (misted double glazing), a worn handle or hinge, or a damaged lock on an otherwise sound frame — usually a straightforward swap. Replacement is the better value once frames are warped, draughty, rotten (on timber) or past roughly 20 to 25 years old, or when several units across the house have failed. Ask the installer to price both where it's borderline.
Does a listing here mean Duq Building 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 Bedfordshire?
This directory holds 121 active window and glazing businesses across 7 towns in Bedfordshire, all from the Companies House register. Luton accounts for 63, among the county's busiest. About 40% of Bedfordshire'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.