D-mac Joinery Limited
Window & double glazing company registered in Londonderry, Belfast
Registered address
48 WILLOWCROFT, FEENY, Londonderry BT47 4GD
✓ Active on Companies House
Companies House numberNI628357
IncorporatedDecember 2014
11 years on the register
11 years on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileMicro-entity accounts (smallest filing band) · last filed March 2025 · next due December 2026
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 D-mac Joinery Limited
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 Londonderry?
Free, no-obligation quotes from FENSA or Certass registered installers near you.
Get Free Quotes →Window help for Londonderry
How much does window replacement cost in Londonderry?
A single uPVC window in Londonderry 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.
How do I get a quote from a window installer in Londonderry?
Use the "Get Free Quotes" form on this page. Your job details go to FENSA or Certass registered installers covering the BT postcode area, who contact you directly. Londonderry has 31 registered window and glazing businesses in this directory, though the installers who quote are not necessarily among them. It is free and there is no obligation.
What does this page tell me about D-mac Joinery Limited?
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.
How many window and glazing companies are there in Belfast?
This directory holds 524 active window and glazing businesses across 79 towns in Belfast, all from the Companies House register. Londonderry accounts for 31, among the county's busiest. About 38% of Belfast'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.