- Company number
- 05375976
- Incorporated
- 25 Feb 200521 years trading
- Registered office
- 55 Kentish Town Road, Camden Town, London, NW1 8NX
- Nature of business
- Roofing activities
S Mummery & Sons Limited is a 21-year-old private limited company registered in London, company number 05375976, one of 692 roofing companies in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
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 £15K (+33.6%) on the year before, to £60K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £69K against £150K owed within a year: 0.5 times cover.
- 13 employees on average, up from 12 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £60K | £32K | £69K | £150K | 13 |
| 31 Mar 2024 | £45K | £38K | £44K | £131K | 12 |
| 31 Mar 2023 | £77K | £34K | £43K | £83K | 13 |
| 31 Mar 2022 | £76K | £48K | £75K | £110K | 12 |
| 31 Mar 2021 | £49K | £53K | £80K | £152K | 11 |
| 31 Mar 2020 | £17K | £17K | £26K | £99K | 11 |
| 31 Mar 2019 | £18K | £3,712 | £21K | £88K | 11 |
| 31 Mar 2018 | £26K | £11K | £23K | £73K | 13 |
| 31 Mar 2017 | £30K | £23K | £37K | £77K | 13 |
| 31 Mar 2016 | £34K | £19K | £26K | £142K |
Where S Mummery & Sons Limited is registered
The registered office is in London (NW1), in the Camden local authority area, London. Show NW1 8NX on a map.
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- Mo Dynasty (Claygate) LimitedProperty developers
- Borough High Street Development LimitedProperty developers
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Also registered at this address
7 other companies use the same registered office as S Mummery & Sons Limited.
- Aquaclear Professional Window Cleaning LimitedCleaning companies
- L Mummery Roofing LimitedRoofers
- London Lane Studios LimitedProperty developers
- Mummery Solutions LimitedInstallers
- R F Mummery Roofing LimitedRoofers
- S Mummery Maintenance LimitedRoofers
- S Mummery Solutions LimitedRoofers
What happens if S Mummery & Sons Limited 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 05375976
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 February 2005 (21 years ago)
- Registered office
- 55 Kentish Town Road, Camden Town, London, NW1 8NX
- 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 2025
- Last confirmation statement
- 25 February 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
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 London
Other active roofing companies registered in London.
- S Mummery Maintenance Limited2026
- S Mummery Solutions Limited2026
- S N K Roofing Ltd2020
- S Scaffolding Limited2017
- S&S Witts Roofing Ltd2026
- S1 Roofing Ltd2015
- Safehome Roof Repairs Ltd2026
- Sainsons Roofing Ltd2024
All roofing companies in London · All trades in London · Roofers across the UK
Frequently asked questions
When are S Mummery & Sons Limited's accounts due?
S Mummery & Sons Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is S Mummery & Sons Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is S Mummery & Sons Limited still trading?
S Mummery & Sons Limited 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 S Mummery & Sons Limited do?
S Mummery & Sons Limited is registered under Roofing activities (SIC 43910).
How old is S Mummery & Sons Limited?
S Mummery & Sons Limited was incorporated on 25 February 2005, 21 years ago.
What is the penalty if S Mummery & Sons Limited 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 S Mummery & Sons Limited 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.