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  4. Addair Services Limited

Addair Services Limited

ActiveTotal exemption (full) accountsPlumbers and heating engineersOrpington
Company number
12629105
Incorporated
28 May 20206 years trading
Registered office
39 High Street, Orpington, BR6 0JE
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
78 days
30 Dec 2026
Net assets
£404▼
-98.3% on the year before
Cash at bank
£4,171▼
At 31 Mar 2025
Employees
3
Average during the year
From the Companies House register, 1 Oct 2026

Addair Services Limited is a 6-year-old private limited company registered in Orpington, company number 12629105, one of 79 plumbing and heating companies in Orpington. Its next accounts are due at Companies House on 30 December 2026, and the CT600 for the period to 30 March 2026 is due at HMRC on 30 March 2027.

Key dates

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

Accounts due
30 Dec 2026
in 78 days
For the period to 30 Mar 2026
CT600 due
30 Mar 2027
in 168 days
Period 1 Apr 2025 to 30 Mar 2026
Corporation tax payment
31 Dec 2026
in 79 days
9 months and 1 day after the period end
Confirmation statement
1 Feb 2027
in 111 days
Last made up to 18 Jan 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 £23K (-98.3%) on the year before, to £404.
  • Net assets rose in 2 of 4 year-on-year comparisons on record.
  • Current assets of £166K against £204K owed within a year: 0.8 times cover.
  • 3 employees on average, up from 2 the year before.
  • Balance sheets on record for 5 years, 2021 to 2025.

Net assets by year

Net assets at each year end, 2021 to 2025£0£20K£40K30 June 2021: net assets -£254-£254202131 March 2022: net assets £18K£18K202231 March 2023: net assets £53K£53K202331 March 2024: net assets £24K£24K202431 March 2025: net assets £404£4042025
Net assets at each year end, 2021 to 2025£0£20K£40K30 June 2021: net assets -£254-£254202131 March 2022: net assets £18K£18K202231 March 2023: net assets £53K£53K202331 March 2024: net assets £24K£24K202431 March 2025: net assets £404£4042025
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£404£4,171£166K£204K3
31 Mar 2024£24K£22K£129K£163K2
31 Mar 2023£53K£2,685£106K£121K2
31 Mar 2022£18K£1,935£111K£97K2
30 Jun 2021-£254£18K£30K£36K2

Where Addair Services Limited is registered

Addair Services Limited's registered office on a map of the UK

The registered office is in Orpington (BR6), in the Bromley local authority area, London. Show BR6 0JE on a map.

Other trade companies in BR6

Shared registered office

131 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 Addair Services 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 December 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late31 Dec 2026 to 30 Jan 2027£150
1 to 3 months late31 Jan 2027 to 30 Mar 2027£375
3 to 6 months late31 Mar 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 late31 Mar 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 late30 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
12629105
Status
Active
Company type
Private limited company
Incorporated
28 May 2020 (6 years ago)
Registered office
39 High Street, Orpington, BR6 0JE
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
30 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2025
Last confirmation statement
18 January 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 Orpington

Other active plumbing and heating companies registered in Orpington.

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

Frequently asked questions

When are Addair Services Limited's accounts due?

Addair Services Limited's next accounts are due at Companies House by 30 December 2026 (in 78 days), covering the period to 30 March 2026.

When is Addair Services Limited's CT600 due?

The CT600 for the period to 30 March 2026 is due at HMRC by 30 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2026.

Is Addair Services Limited still trading?

Addair Services 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 Addair Services Limited do?

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

How old is Addair Services Limited?

Addair Services Limited was incorporated on 28 May 2020, 6 years ago.

What is the penalty if Addair Services 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 Addair Services 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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