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  4. DM Plumbing Limited

DM Plumbing Limited

ActiveMicro-entity accountsPlumbers and heating engineersMarlow
Company number
15175011
Incorporated
29 Sep 20233 years trading
Registered office
19/21 Chapel Street, 19/21 Chapel Street, Marlow, Bucks, SL7 3HN
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
444 days
31 Dec 2027
Net assets
£1,278▼
-86.5% on the year before
Employees
1
Average during the year
Checked with Companies House 13 Oct 2026

DM Plumbing Limited is a 3-year-old private limited company registered in Marlow, company number 15175011, one of 12 plumbing and heating companies in Marlow. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.

Key dates

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

Accounts due
31 Dec 2027
in 444 days
For the period to 31 Mar 2027
CT600 due
31 Mar 2028
in 535 days
Period 1 Apr 2026 to 31 Mar 2027
Corporation tax payment
1 Jan 2028
in 445 days
9 months and 1 day after the period end
Confirmation statement
12 Oct 2027
in 364 days
Last made up to 28 Sep 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 £8,204 (-86.5%) on the year before, to £1,278.
  • Current assets of £6,384 against £8,176 owed within a year: 0.8 times cover.
  • 1 employee on average during the year.
  • Balance sheets on record for 2 years, 2024 to 2026.

Net assets by year

Net assets at each year end, 2024 to 2026£0£5,00030 September 2024: net assets £9,482£9,482202431 March 2026: net assets £1,278£1,2782026
Net assets at each year end, 2024 to 2026£0£5,00030 September 2024: net assets £9,482£9,482202431 March 2026: net assets £1,278£1,2782026
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2026£1,278£6,384£8,1761
30 Sep 2024£9,482£11K£7,6801

Where DM Plumbing Limited is registered

DM Plumbing Limited's registered office on a map of the UK

The registered office is in Marlow (SL7), in the Buckinghamshire local authority area, South East. Show SL7 3HN on a map.

Other trade companies in SL7

Also registered at this address

6 other companies use the same registered office as DM Plumbing Limited.

What happens if DM Plumbing 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 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2028 to 31 Jan 2028£150
1 to 3 months late1 Feb 2028 to 31 Mar 2028£375
3 to 6 months late1 Apr 2028 to 30 Jun 2028£750
More than 6 months lateFrom 1 Jul 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2028£200
3 months late30 Jun 2028another £200
6 months late30 Sep 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2029another 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
15175011
Status
Active
Company type
Private limited company
Incorporated
29 September 2023 (3 years ago)
Registered office
19/21 Chapel Street, 19/21 Chapel Street, Marlow, Bucks, SL7 3HN
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 March (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 March 2026
Last confirmation statement
28 September 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 Marlow

Other active plumbing and heating companies registered in Marlow.

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

Frequently asked questions

When are DM Plumbing Limited's accounts due?

DM Plumbing Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.

When is DM Plumbing Limited's CT600 due?

The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.

Is DM Plumbing Limited still trading?

DM Plumbing 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 DM Plumbing Limited do?

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

How old is DM Plumbing Limited?

DM Plumbing Limited was incorporated on 29 September 2023, 3 years ago.

What is the penalty if DM Plumbing 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 DM Plumbing 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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