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  4. Drain Surgeons (1977) Limited

Drain Surgeons (1977) Limited

ActiveTotal exemption (full) accountsPlumbers and heating engineersLondon
Company number
10716362
Incorporated
8 Apr 20179 years trading
Registered office
Southgate Office Village 286-A Chase Road, Block E, London, Greater London, N14 6HF
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
230 days
31 May 2027
Net assets
-£104K▼
-88.0% on the year before
Cash at bank
£15K▼
At 31 Aug 2025
Employees
4
Average during the year
Checked with Companies House 13 Oct 2026

Drain Surgeons (1977) Limited is a 9-year-old private limited company registered in London, company number 10716362, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 May 2027
in 230 days
For the period to 31 Aug 2026
CT600 due
31 Aug 2027
in 322 days
Period 1 Sep 2025 to 31 Aug 2026
Corporation tax payment
1 Jun 2027
in 231 days
9 months and 1 day after the period end
Confirmation statement
23 Mar 2026
Overdue by 204 days
Last made up to 9 Mar 2025

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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 £49K (-88%) on the year before, to -£104K.
  • Net assets rose in 2 of 8 year-on-year comparisons on record.
  • Current assets of £181K against £285K owed within a year: 0.6 times cover.
  • 4 employees on average during the year.
  • Balance sheets on record for 9 years, 2018 to 2025.

Net assets by year

Net assets at each year end, 2018 to 2025-£100K-£50K£030 April 2018: net assets £100£100201830 April 2019: net assets £100£100201930 April 2020: net assets £25K£25K202030 April 2021: net assets £14K£14K202130 April 2022: net assets £22K£22K202230 April 2023: net assets £5,449£5,449202330 April 2024: net assets -£20K-£20K202430 April 2025: net assets -£55K-£55K202531 August 2025: net assets -£104K-£104K2025
Net assets at each year end, 2018 to 2025-£100K-£50K£030 April 2018: net assets £100£100'1830 April 2019: net assets £100£100'1930 April 2020: net assets £25K£25K'2030 April 2021: net assets £14K£14K'2130 April 2022: net assets £22K£22K'2230 April 2023: net assets £5,449£5,449'2330 April 2024: net assets -£20K-£20K'2430 April 2025: net assets -£55K-£55K'2531 August 2025: net assets -£104K-£104K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Aug 2025-£104K£15K£181K£285K4
30 Apr 2025-£55K£16K£192K£263K4
30 Apr 2024-£20K£16K£139K£176K4
30 Apr 2023£5,449£12K£155K£168K4
30 Apr 2022£22K£85K£62K4
30 Apr 2021£14K£65K£52K4
30 Apr 2020£25K£100K£75K4
30 Apr 2019£100£100
30 Apr 2018£100£100

Who runs and owns Drain Surgeons (1977) Limited

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officer

NameRoleAppointed
B*** D***DirectorApr 2017

Person with significant control

Individual · since Apr 2017
B*** D***
Has significant influence or control

Where Drain Surgeons (1977) Limited is registered

Drain Surgeons (1977) Limited's registered office on a map of the UK

The registered office is in London (N14), in the Enfield local authority area, London. Show N14 6HF on a map.

Other trade companies in N14

Also registered at this address

23 other companies use the same registered office as Drain Surgeons (1977) Limited.

What happens if Drain Surgeons (1977) 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 May 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jun 2027 to 30 Jun 2027£150
1 to 3 months late1 Jul 2027 to 31 Aug 2027£375
3 to 6 months late1 Sep 2027 to 30 Nov 2027£750
More than 6 months lateFrom 1 Dec 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Sep 2027£200
3 months late30 Nov 2027another £200
6 months late29 Feb 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Aug 2028another 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
10716362
Status
Active
Company type
Private limited company
Incorporated
8 April 2017 (9 years ago)
Registered office
Southgate Office Village 286-A Chase Road, Block E, London, Greater London, N14 6HF
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 August (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 August 2025
Last confirmation statement
9 March 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.

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Frequently asked questions

When are Drain Surgeons (1977) Limited's accounts due?

Drain Surgeons (1977) Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.

When is Drain Surgeons (1977) Limited's CT600 due?

The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.

Is Drain Surgeons (1977) Limited still trading?

Drain Surgeons (1977) Limited 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 Drain Surgeons (1977) Limited do?

Drain Surgeons (1977) Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Drain Surgeons (1977) Limited?

Drain Surgeons (1977) Limited was incorporated on 8 April 2017, 9 years ago.

Who runs Drain Surgeons (1977) Limited?

Drain Surgeons (1977) Limited has 1 active director, the longest-serving appointed in Apr 2017. Their names and service addresses are on the Companies House register.

Who owns Drain Surgeons (1977) Limited?

One person or company has significant control of Drain Surgeons (1977) Limited: an individual (has significant influence or control).

What is the penalty if Drain Surgeons (1977) 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 Drain Surgeons (1977) Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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