- Companies
- Installers
- Doncaster
- Mahon Glazing & Exteriors Ltd
Mahon Glazing & Exteriors Ltd
- Company number
- 17254714
- Incorporated
- 1 Jun 2026
- Registered office
- 1 March Vale Rise, Conisbrough, Doncaster, DN12 2EN
- Nature of business
- Other construction installation; Glazing
Mahon Glazing & Exteriors Ltd is a newly incorporated private limited company registered in Doncaster, company number 17254714, one of 128 installation companies (insulation, lifts, shutters and similar) in Doncaster. Its next accounts are due at Companies House on 1 March 2028, and its first CT600 is due at HMRC on 31 May 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Mahon Glazing & Exteriors Ltd is registered
The registered office is in Doncaster (DN12), in the Doncaster local authority area, Yorkshire and The Humber. Show DN12 2EN on a map.
Other trade companies in DN12
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- Sir Scaffolding Services LtdScaffolders
- J Jones Electrical LtdElectricians
- DRR Construct LtdBuilders
- Louis D. Wright LtdCivil engineering
- V Joinery LimitedJoiners and carpenters
- MJC Truck and Trailer Services LimitedMechanics and garages
- La Electrical & Comms LtdMachinery repair and installation
What happens if Mahon Glazing & Exteriors 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 1 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 2 Mar 2028 to 1 Apr 2028 | £150 |
| 1 to 3 months late | 2 Apr 2028 to 1 Jun 2028 | £375 |
| 3 to 6 months late | 2 Jun 2028 to 1 Sep 2028 | £750 |
| More than 6 months late | From 2 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 17254714
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 June 2026
- Registered office
- 1 March Vale Rise, Conisbrough, Doncaster, DN12 2EN
- Nature of business
- Other construction installation (SIC 43290)
Glazing (SIC 43342) - Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Doncaster
Other active installation companies (insulation, lifts, shutters and similar) registered in Doncaster.
- Mechantech Installations Ltd2016
- Minimax UK Limited2005
- MKB Building Services Ltd2025
- MMC Housing Solutions Limited2021
- MMC Solid Wall Structures Limited2019
- Myles Offshore Limited2025
- N Hutchinson Contractor Ltd2024
- Obs Property Management Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Doncaster · All trades in Doncaster · Installers across the UK
Frequently asked questions
When are Mahon Glazing & Exteriors Ltd's accounts due?
Mahon Glazing & Exteriors Ltd's next accounts are due at Companies House by 1 March 2028 (in 505 days), covering the period to 30 June 2027.
When is Mahon Glazing & Exteriors Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 May 2027, due by 31 May 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mahon Glazing & Exteriors Ltd still trading?
Mahon Glazing & Exteriors 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 Mahon Glazing & Exteriors Ltd do?
Mahon Glazing & Exteriors Ltd is registered under Other construction installation (SIC 43290); Glazing (SIC 43342).
How old is Mahon Glazing & Exteriors Ltd?
Mahon Glazing & Exteriors Ltd was incorporated on 1 June 2026, less than a year ago.
What is the penalty if Mahon Glazing & Exteriors 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 Mahon Glazing & Exteriors 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.