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  4. Proctor & Maslin Limited

Proctor & Maslin Limited

ActiveTotal exemption (full) accountsPlumbers and heating engineersSidcup
Company number
09573960
Incorporated
5 May 201511 years trading
Registered office
Onega House, 112 Main Road, Sidcup, DA14 6NE
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
79 days
31 Dec 2026
Net assets
£943▼
-98.6% on the year before
Cash at bank
£48K▼
At 31 Mar 2025
Employees
0
Average during the year
From the Companies House register, 1 Oct 2026

Proctor & Maslin Limited is a 11-year-old private limited company registered in Sidcup, company number 09573960, one of 101 plumbing and heating companies in Sidcup. 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.

Accounts due
31 Dec 2026
in 79 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 169 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 80 days
9 months and 1 day after the period end
Confirmation statement
19 May 2027
in 218 days
Last made up to 5 May 2026

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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 £64K (-98.6%) on the year before, to £943.
  • Net assets rose in 4 of 9 year-on-year comparisons on record.
  • Current assets of £150K against £147K owed within a year: 1.0 times cover.
  • No employees reported for the latest year (directors are often not counted as employees).
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£100K£200K31 March 2016: net assets £1,891£1,891201631 March 2017: net assets £556£556201731 March 2018: net assets £640£640201831 March 2019: net assets £7,692£7,692201931 March 2020: net assets £94£94202031 March 2021: net assets £258K£258K202131 March 2022: net assets £119K£119K202231 March 2023: net assets £167K£167K202331 March 2024: net assets £65K£65K202431 March 2025: net assets £943£9432025
Net assets at each year end, 2016 to 2025£0£100K£200K31 March 2016: net assets £1,891£1,891'1631 March 2017: net assets £556£556'1731 March 2018: net assets £640£640'1831 March 2019: net assets £7,692£7,692'1931 March 2020: net assets £94£94'2031 March 2021: net assets £258K£258K'2131 March 2022: net assets £119K£119K'2231 March 2023: net assets £167K£167K'2331 March 2024: net assets £65K£65K'2431 March 2025: net assets £943£943'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£943£48K£150K£147K0
31 Mar 2024£65K£126K£197K£119K2
31 Mar 2023£167K£246K£351K£162K2
31 Mar 2022£119K£96K£208K£58K2
31 Mar 2021£258K£395K£471K£172K2
31 Mar 2020£94£18K£65K£68K2
31 Mar 2019£7,692£117K£117K£113K2
31 Mar 2018£640£200£15K£19K2
31 Mar 2017£556£6,688£9,999£14K2
31 Mar 2016£1,891£1,537£17K£22K

Who runs and owns Proctor & Maslin Limited

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

Officers (2)

NameRoleAppointed
J*** M***DirectorMay 2015
A*** P***DirectorMay 2015

People with significant control (2)

Individual · since Apr 2016
J*** M***
Owns 25% to 50% of the shares
Holds 25% to 50% of the votes
Individual · since Apr 2016
A*** P***
Owns 25% to 50% of the shares
Holds 25% to 50% of the votes

Where Proctor & Maslin Limited is registered

Proctor & Maslin Limited's registered office on a map of the UK

The registered office is in Sidcup (DA14), in the Bexley local authority area, London. Show DA14 6NE on a map.

Other trade companies in DA14

Shared registered office

87 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.

What happens if Proctor & Maslin 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 HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 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
09573960
Status
Active
Company type
Private limited company
Incorporated
5 May 2015 (11 years ago)
Registered office
Onega House, 112 Main Road, Sidcup, DA14 6NE
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2025
Last confirmation statement
5 May 2026

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 Sidcup

Other active plumbing and heating companies registered in Sidcup.

All plumbing and heating companies in Sidcup · All trades in Sidcup · Plumbers and heating engineers across the UK

Frequently asked questions

When are Proctor & Maslin Limited's accounts due?

Proctor & Maslin 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 Proctor & Maslin 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 Proctor & Maslin Limited still trading?

Proctor & Maslin 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 Proctor & Maslin Limited do?

Proctor & Maslin Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Proctor & Maslin Limited?

Proctor & Maslin Limited was incorporated on 5 May 2015, 11 years ago.

Who runs Proctor & Maslin Limited?

Proctor & Maslin Limited has 2 active directors, the longest-serving appointed in May 2015. Their names and service addresses are on the Companies House register.

Who owns Proctor & Maslin Limited?

2 people or companies have significant control of Proctor & Maslin Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).

What is the penalty if Proctor & Maslin 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 Proctor & Maslin 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). 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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