- Company number
- 16161078
- Incorporated
- 3 Jan 20251 year trading
- Registered office
- 10 Alwyne Road, London, W7 3EN
- Nature of business
- Construction of domestic buildings
Mascotts Maintenance Ltd is a 1-year-old private limited company registered in London, company number 16161078, one of 12,075 building contractors in London. Companies House shows its accounts as overdue: they were due on 3 October 2026.
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.
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Where Mascotts Maintenance Ltd is registered
The registered office is in London (W7), in the Ealing local authority area, London. Show W7 3EN on a map.
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What happens if Mascotts Maintenance Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Oct 2026 to 3 Nov 2026 | £150 |
| 1 to 3 months late | 4 Nov 2026 to 3 Jan 2027 | £375 |
| 3 to 6 months late | 4 Jan 2027 to 3 Apr 2027 | £750 |
| More than 6 months late | From 4 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2028 | 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
- 16161078
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 January 2025 (1 year ago)
- Registered office
- 10 Alwyne Road, London, W7 3EN
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 31 March 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- Mash Lift Installation Ltd2014
- Mashad Construction Ltd2025
- Mashriq Niazi Properties Ltd2015
- Masis Warehouse Ltd2019
- Masjid & Imambargah Shuhdae Karbala Ltd2025
- Maskuri Limited2022
- Maslev Ltd2022
- Mason Brickwork (London) Ltd2020
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Mascotts Maintenance Ltd's accounts due?
Mascotts Maintenance Ltd's accounts were due at Companies House on 3 October 2026 and the register shows them as overdue.
When is Mascotts Maintenance 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 2 January 2026, due by 2 January 2027, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mascotts Maintenance Ltd still trading?
Mascotts Maintenance Ltd is listed as active on the Companies House register (checked 13 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 Mascotts Maintenance Ltd do?
Mascotts Maintenance Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Mascotts Maintenance Ltd?
Mascotts Maintenance Ltd was incorporated on 3 January 2025, 1 year ago.
What is the penalty if Mascotts Maintenance 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 Mascotts Maintenance Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.