- Company number
- 14545060
- Incorporated
- 16 Dec 20223 years trading
- Registered office
- Fairway House Links Business Park, ST Mellons, Cardiff, CF3 0LT
- Nature of business
- Roofing activities
D.J. Mackay & Son Roofing Contractors Ltd is a 3-year-old private limited company registered in Cardiff, company number 14545060, one of 60 roofing companies in Cardiff. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £90K (+19.5%) on the year before, to £552K.
- Current assets of £514K against £70K owed within a year: 7.3 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 3 years, 2024 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £552K | £183K | £514K | £70K | 3 |
| 31 Mar 2025 | £462K | £52K | £406K | £89K | 4 |
| 31 Mar 2024 | £270K | £59K | £330K | £116K | 5 |
Where D.J. Mackay & Son Roofing Contractors Ltd is registered
The registered office is in Cardiff (CF3), in the Cardiff local authority area, Wales. Show CF3 0LT on a map.
Other trade companies in CF3
- Ions Trade & Projects LtdInstallers
- Fly Tech LtdMachinery repair and installation
- Dragonfly Site Services LtdSpecialist contractors
- Arc Energy Systems LtdElectricians
- Floyd’S Consultants LtdProperty developers
- Blues Mechanical LtdInstallers
- Climate Control Cardiff LtdPlumbers and heating engineers
- Campo & Co Developments LtdBuilders
Also registered at this address
10 other companies use the same registered office as D.J. Mackay & Son Roofing Contractors Ltd.
- A & N Plumbing Services LimitedPlumbers and heating engineers
- Britannia Capital Investments LimitedProperty developers
- Cifra Solutions LtdBuilders
- Crean Construction (UK) LtdFinishing trades
- Crean Construction LimitedFinishing trades
- Leeksons Exterior Cleaning LimitedCleaning companies
- Principality Motor Company LtdMotor traders
- Shire Willow Group LtdProperty developers
- Summit Electrical Group LtdElectricians
- Vincor Developments LtdBuilders
What happens if D.J. Mackay & Son Roofing Contractors Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 14545060
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 December 2022 (3 years ago)
- Registered office
- Fairway House Links Business Park, ST Mellons, Cardiff, CF3 0LT
- Nature of business
- Roofing activities (SIC 43910)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 15 December 2025
Filing notes for roofing companies
Roofing companies commonly work under CIS and run vans and access equipment, so CIS deductions and capital allowances are the two things to get right.
Similar companies in Cardiff
Other active roofing companies registered in Cardiff.
- Dale Roofing Services Limited2025
- Darren Ellaway Roofing Limited2022
- DBS Facades Ltd2024
- Dumont Limited2015
- Envisage Maintenance Limited2022
- FJ Lowery & Son Roofing Ltd2009
- Flat Roof Care Ltd2009
- Four Seasons Roofing Solutions Ltd2026
All roofing companies in Cardiff · All trades in Cardiff · Roofers across the UK
Frequently asked questions
When are D.J. Mackay & Son Roofing Contractors Ltd's accounts due?
D.J. Mackay & Son Roofing Contractors Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is D.J. Mackay & Son Roofing Contractors Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is D.J. Mackay & Son Roofing Contractors Ltd still trading?
D.J. Mackay & Son Roofing Contractors Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does D.J. Mackay & Son Roofing Contractors Ltd do?
D.J. Mackay & Son Roofing Contractors Ltd is registered under Roofing activities (SIC 43910).
How old is D.J. Mackay & Son Roofing Contractors Ltd?
D.J. Mackay & Son Roofing Contractors Ltd was incorporated on 16 December 2022, 3 years ago.
What is the penalty if D.J. Mackay & Son Roofing Contractors Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View D.J. Mackay & Son Roofing Contractors Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.