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Atlantica Plumbing and Heating Ltd

ActiveMicro-entity accountsPlumbers and heating engineersCardiff
Company number
13689613
Incorporated
19 Oct 20214 years trading
Registered office
222 Adventurers Quay, Cardiff, CF10 4NS
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
18 days
31 Oct 2026
Net assets
£5,563▼
-19.1% on the year before
Employees
1
Average during the year
From the Companies House register, 1 Oct 2026

Atlantica Plumbing and Heating Ltd is a 4-year-old private limited company registered in Cardiff, company number 13689613, one of 170 plumbing and heating companies in Cardiff. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 2026.

Key dates

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

Accounts due
31 Oct 2026
in 18 days
For the period to 31 Jan 2026
CT600 due (first of two)
31 Oct 2026
in 18 days
Period 1 Nov 2024 to 31 Oct 2025
CT600 due (second of two)
31 Jan 2027
in 110 days
Period 1 Nov 2025 to 31 Jan 2026
Corporation tax payment
1 Nov 2026
in 19 days
9 months and 1 day after the period end
Confirmation statement
1 Nov 2026
in 19 days
Last made up to 18 Oct 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 £1,310 (-19.1%) on the year before, to £5,563.
  • Current assets of £2,300 against £800 owed within a year: 2.9 times cover.
  • 1 employee on average during the year.
  • Balance sheets on record for 3 years, 2022 to 2024.

Net assets by year

Net assets at each year end, 2022 to 2024£0£5,00031 October 2022: net assets -£2,270-£2,270202231 October 2023: net assets £6,873£6,873202331 October 2024: net assets £5,563£5,5632024
Net assets at each year end, 2022 to 2024£0£5,00031 October 2022: net assets -£2,270-£2,270202231 October 2023: net assets £6,873£6,873202331 October 2024: net assets £5,563£5,5632024
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Oct 2024£5,563£2,300£8001
31 Oct 2023£6,873£1,000£1,5001
31 Oct 2022-£2,270£6,800£2,0001

Where Atlantica Plumbing and Heating Ltd is registered

Atlantica Plumbing and Heating Ltd's registered office on a map of the UK

The registered office is in Cardiff (CF10), in the Cardiff local authority area, Wales. Show CF10 4NS on a map.

Other trade companies in CF10

What happens if Atlantica Plumbing and Heating Ltd 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 October 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Nov 2026 to 30 Nov 2026£150
1 to 3 months late1 Dec 2026 to 31 Jan 2027£375
3 to 6 months late1 Feb 2027 to 30 Apr 2027£750
More than 6 months lateFrom 1 May 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Feb 2027£200
3 months late30 Apr 2027another £200
6 months late31 Jul 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jan 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
13689613
Status
Active
Company type
Private limited company
Incorporated
19 October 2021 (4 years ago)
Registered office
222 Adventurers Quay, Cardiff, CF10 4NS
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 October (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 October 2024
Last confirmation statement
18 October 2025
Previous names
Clarke Plumbing and Heating Ltd (until 7 Nov 2022)

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.

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Frequently asked questions

When are Atlantica Plumbing and Heating Ltd's accounts due?

Atlantica Plumbing and Heating Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.

When is Atlantica Plumbing and Heating Ltd's CT600 due?

The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.

Is Atlantica Plumbing and Heating Ltd still trading?

Atlantica Plumbing and Heating Ltd 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 Atlantica Plumbing and Heating Ltd do?

Atlantica Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Atlantica Plumbing and Heating Ltd?

Atlantica Plumbing and Heating Ltd was incorporated on 19 October 2021, 4 years ago.

What is the penalty if Atlantica Plumbing and Heating Ltd 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 Atlantica Plumbing and Heating Ltd 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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