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  4. Viessmann Engineer Limited

Viessmann Engineer Limited

ActiveMicro-entity accountsPlumbers and heating engineersHarrow
Company number
10733989
Incorporated
21 Apr 20179 years trading
Registered office
DNS House,, 382 Kenton Road, Harrow, HA3 8DP
Nature of business
Plumbing, heat and air-conditioning installation; Other building completion and finishing
Accounts
Overdue
Were due 30 Apr 2026
Checked with Companies House 12 Oct 2026

Viessmann Engineer Limited is a 9-year-old private limited company registered in Harrow, company number 10733989, one of 154 plumbing and heating companies in Harrow. Companies House shows its accounts as overdue: they were due on 30 April 2026.

Key dates

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

Accounts due
30 Apr 2026
Overdue by 165 days
For the period to 31 Jul 2025
CT600 due (first of two)
30 Apr 2026
Date passed (HMRC does not publish filings)
Period 1 May 2024 to 30 Apr 2025
CT600 due (second of two)
31 Jul 2026
Date passed (HMRC does not publish filings)
Period 1 May 2025 to 31 Jul 2025
Corporation tax payment
1 May 2026
Date passed
9 months and 1 day after the period end
Confirmation statement
4 May 2027
in 204 days
Last made up to 20 Apr 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 unchanged on the year before, at £206K.
  • Net assets rose in 2 of 6 year-on-year comparisons on record.
  • Current assets of £364K against £128K owed within a year: 2.9 times cover.
  • 1 employee on average during the year.
  • Balance sheets on record for 7 years, 2018 to 2024.

Net assets by year

Net assets at each year end, 2018 to 2024£0£100K£200K30 April 2018: net assets £2,040£2,040201830 April 2019: net assets £1,011£1,011201930 April 2020: net assets £631£631202030 April 2021: net assets £60K£60K202130 April 2022: net assets £60K£60K202230 April 2023: net assets £206K£206K202330 April 2024: net assets £206K£206K2024
Net assets at each year end, 2018 to 2024£0£100K£200K30 April 2018: net assets £2,040£2,040'1830 April 2019: net assets £1,011£1,011'1930 April 2020: net assets £631£631'2030 April 2021: net assets £60K£60K'2130 April 2022: net assets £60K£60K'2230 April 2023: net assets £206K£206K'2330 April 2024: net assets £206K£206K'24
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Apr 2024£206K£364K£128K1
30 Apr 2023£206K£364K£128K1
30 Apr 2022£60K£4,558£14K1
30 Apr 2021£60K£4,558£14K1
30 Apr 2020£631£7,3411
30 Apr 2019£1,011£7,413£6,402
30 Apr 2018£2,040£2,495£455

Who runs and owns Viessmann Engineer Limited

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

Officer

NameRoleAppointed
C*** I***DirectorApr 2017

Person with significant control

Individual · since Apr 2017
C*** I***
Owns 75% or more of the shares

Where Viessmann Engineer Limited is registered

Viessmann Engineer Limited's registered office on a map of the UK

The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 8DP on a map.

Other trade companies in HA3

Shared registered office

59 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 Viessmann Engineer Limited files late

If the accounts reach Companies House today, the late filing penalty is £750 (£1,500 if last year's accounts were also late). It rises at each step below.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 May 2026 to 31 May 2026£150
1 to 3 months late1 Jun 2026 to 31 Jul 2026£375
3 to 6 months late1 Aug 2026 to 31 Oct 2026£750
More than 6 months lateFrom 1 Nov 2026£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Aug 2026£200
3 months late31 Oct 2026another £200
6 months late31 Jan 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jul 2027another 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
10733989
Status
Active
Company type
Private limited company
Incorporated
21 April 2017 (9 years ago)
Registered office
DNS House,, 382 Kenton Road, Harrow, HA3 8DP
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Other building completion and finishing (SIC 43390)
Year end
30 April (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
30 April 2024
Last confirmation statement
20 April 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 Harrow

Other active plumbing and heating companies registered in Harrow.

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

Frequently asked questions

When are Viessmann Engineer Limited's accounts due?

Viessmann Engineer Limited's accounts were due at Companies House on 30 April 2026 and the register shows them as overdue.

When is Viessmann Engineer Limited's CT600 due?

The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 April 2025, due by 30 April 2026, and one for the period to 31 July 2025, due by 31 July 2026. Corporation tax is payable 9 months and 1 day after the end of each.

Is Viessmann Engineer Limited still trading?

Viessmann Engineer Limited is listed as active on the Companies House register (checked 12 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 Viessmann Engineer Limited do?

Viessmann Engineer Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other building completion and finishing (SIC 43390).

How old is Viessmann Engineer Limited?

Viessmann Engineer Limited was incorporated on 21 April 2017, 9 years ago.

Who runs Viessmann Engineer Limited?

Viessmann Engineer 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 Viessmann Engineer Limited?

One person or company has significant control of Viessmann Engineer Limited: an individual (owns 75% or more of the shares).

What is the penalty if Viessmann Engineer 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 Viessmann Engineer 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 12 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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