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  4. Therm Control Ltd.

Therm Control Ltd.

ActiveMicro-entity accountsPlumbers and heating engineersYork
Company number
04539677
Incorporated
19 Sep 200224 years trading
Registered office
19 Railway Street, Pocklington, York, YO42 2QR
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
353 days
30 Sep 2027
Net assets
£177K▼
-14.2% on the year before
Employees
2
Average during the year
Checked with Companies House 12 Oct 2026

Therm Control Ltd. is a 24-year-old private limited company registered in York, company number 04539677, one of 123 plumbing and heating companies in York. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.

Key dates

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

Accounts due
30 Sep 2027
in 353 days
For the period to 31 Dec 2026
CT600 due
31 Dec 2027
in 445 days
Period 1 Jan 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 354 days
9 months and 1 day after the period end
Confirmation statement
3 Oct 2027
in 356 days
Last made up to 19 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 £29K (-14.2%) on the year before, to £177K.
  • Net assets rose in 5 of 9 year-on-year comparisons on record.
  • Current assets of £181K against £4,769 owed within a year: more than 10 times cover.
  • 2 employees on average during the year.
  • 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 December 2016: net assets £159K£159K201631 December 2017: net assets £184K£184K201731 December 2018: net assets £201K£201K201831 December 2019: net assets £195K£195K201931 December 2020: net assets £204K£204K202031 December 2021: net assets £236K£236K202131 December 2022: net assets £189K£189K202231 December 2023: net assets £216K£216K202331 December 2024: net assets £207K£207K202431 December 2025: net assets £177K£177K2025
Net assets at each year end, 2016 to 2025£0£100K£200K31 December 2016: net assets £159K£159K'1631 December 2017: net assets £184K£184K'1731 December 2018: net assets £201K£201K'1831 December 2019: net assets £195K£195K'1931 December 2020: net assets £204K£204K'2031 December 2021: net assets £236K£236K'2131 December 2022: net assets £189K£189K'2231 December 2023: net assets £216K£216K'2331 December 2024: net assets £207K£207K'2431 December 2025: net assets £177K£177K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2025£177K£181K£4,7692
31 Dec 2024£207K£219K£13K2
31 Dec 2023£216K£240K£25K2
31 Dec 2022£189K£198K£11K2
31 Dec 2021£236K£265K£32K3
31 Dec 2020£204K£235K£34K3
31 Dec 2019£195K£224K£34K3
31 Dec 2018£201K£238K£43K
31 Dec 2017£184K£240K£63K
31 Dec 2016£159K£240K£91K

Where Therm Control Ltd. is registered

Therm Control Ltd.'s registered office on a map of the UK

The registered office is in York (YO42), in the East Riding of Yorkshire local authority area, Yorkshire and The Humber. Show YO42 2QR on a map.

Other trade companies in YO42

Shared registered office

26 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 Therm Control 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 30 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2027 to 31 Oct 2027£150
1 to 3 months late1 Nov 2027 to 31 Dec 2027£375
3 to 6 months late1 Jan 2028 to 31 Mar 2028£750
More than 6 months lateFrom 1 Apr 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 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
04539677
Status
Active
Company type
Private limited company
Incorporated
19 September 2002 (24 years ago)
Registered office
19 Railway Street, Pocklington, York, YO42 2QR
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 December (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 December 2025
Last confirmation statement
19 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 York

Other active plumbing and heating companies registered in York.

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

Frequently asked questions

When are Therm Control Ltd.'s accounts due?

Therm Control Ltd.'s next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.

When is Therm Control Ltd.'s CT600 due?

The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.

Is Therm Control Ltd. still trading?

Therm Control Ltd. 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 Therm Control Ltd. do?

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

How old is Therm Control Ltd.?

Therm Control Ltd. was incorporated on 19 September 2002, 24 years ago.

What is the penalty if Therm Control 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 Therm Control 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, 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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