- Companies
- Plumbers and heating engineers
- London
- Sas Service and Maintenance Limited
Sas Service and Maintenance Limited
- Company number
- 12308821
- Incorporated
- 11 Nov 20196 years trading
- Registered office
- Flat 2, De Beauvoir Estate, London, N1 5SS
- Nature of business
- Plumbing, heat and air-conditioning installation
Sas Service and Maintenance Limited is a 6-year-old private limited company registered in London, company number 12308821, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 30 November 2026, and its first CT600 is due at HMRC on 30 November 2026.
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 down £6,188 (-81%) on the year before, to £1,452.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £11K against £7,696 owed within a year: 1.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | £1,452 | £11K | £7,696 | 0 | |
| 30 Nov 2023 | £7,640 | £15K | £5,776 | 0 | |
| 30 Nov 2022 | £1,212 | £15K | £1,671 | 0 | |
| 30 Nov 2021 | £725 | £14K | £146 | 0 | |
| 30 Nov 2020 | £344 | £14K | £14K | 0 |
Who runs and owns Sas Service and Maintenance Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** A*** | Director | Nov 2019 |
Person with significant control
Where Sas Service and Maintenance Limited is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 5SS on a map.
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What happens if Sas Service and Maintenance 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 12308821
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 November 2019 (6 years ago)
- Registered office
- Flat 2, De Beauvoir Estate, London, N1 5SS
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 10 November 2025
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- Satsuuma Heat Pumps Ltd2025
- Saul Services Ltd2017
- Savage and Sons Ltd2023
- Savmar Plumbing Ltd2026
- Savy Emergency Plumbing 247 Ltd2026
- SBN Gas and Plumbing Limited2024
- SC Air Conditioning Ltd2026
- SC Alinmona Ltd2023
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Sas Service and Maintenance Limited's accounts due?
Sas Service and Maintenance Limited's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Sas Service and Maintenance Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 November 2025, due by 30 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sas Service and Maintenance Limited still trading?
Sas Service and Maintenance 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 Sas Service and Maintenance Limited do?
Sas Service and Maintenance Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Sas Service and Maintenance Limited?
Sas Service and Maintenance Limited was incorporated on 11 November 2019, 6 years ago.
Who runs Sas Service and Maintenance Limited?
Sas Service and Maintenance Limited has 1 active director, the longest-serving appointed in Nov 2019. Their names and service addresses are on the Companies House register.
Who owns Sas Service and Maintenance Limited?
One person or company has significant control of Sas Service and Maintenance Limited: an individual (owns 75% or more of the shares).
What is the penalty if Sas Service and Maintenance 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 Sas Service and Maintenance 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.