1. Companies
  2. Plumbers and heating engineers
  3. Sunbury-on-Thames
  4. Thames Heating Services Ltd

Thames Heating Services Ltd

Company number
10167661
Incorporated
6 May 201610 years trading
Registered office
54 the Avenue, The Avenue, Sunbury-on-Thames, TW16 5ES
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
79 days
31 Dec 2026
Net assets
£646▼
-46.2% on the year before
Employees
1
Average during the year
From the Companies House register, 1 Oct 2026

Thames Heating Services Ltd is a 10-year-old private limited company registered in Sunbury-on-Thames, company number 10167661, one of 20 plumbing and heating companies in Sunbury-on-Thames. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.

Key dates

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

Accounts due
31 Dec 2026
in 79 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 169 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 80 days
9 months and 1 day after the period end
Confirmation statement
23 Oct 2026
in 10 days
Last made up to 9 Oct 2025

Is this your company?

File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.

File for Thames Heating Services Ltd

Or get a reminder before each deadline

Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.

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 £554 (-46.2%) on the year before, to £646.
  • Net assets rose in 2 of 9 year-on-year comparisons on record.
  • Current assets of £12K against £13K owed within a year: 1.0 times cover.
  • 1 employee on average during the year.
  • Balance sheets on record for 10 years, 2018 to 2025.

Net assets by year

Net assets at each year end, 2018 to 2025£0£2,500£5,00031 March 2018: net assets £760£760201830 March 2019: net assets £5,579£5,579201931 March 2019: net assets £5,579£5,579201930 March 2020: net assets £4,035£4,035202031 March 2020: net assets £1,995£1,995202031 March 2021: net assets £1,816£1,816202131 March 2022: net assets £1,062£1,062202231 March 2023: net assets £6,874£6,874202331 March 2024: net assets £1,200£1,200202431 March 2025: net assets £646£6462025
Net assets at each year end, 2018 to 2025£0£2,500£5,00031 March 2018: net assets £760£760'1830 March 2019: net assets £5,579£5,579'1931 March 2019: net assets £5,579£5,579'1930 March 2020: net assets £4,035£4,035'2031 March 2020: net assets £1,995£1,995'2031 March 2021: net assets £1,816£1,816'2131 March 2022: net assets £1,062£1,062'2231 March 2023: net assets £6,874£6,874'2331 March 2024: net assets £1,200£1,200'2431 March 2025: net assets £646£646'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£646£12K£13K1
31 Mar 2024£1,200£8,328£8,0551
31 Mar 2023£6,874£20K£14K1
31 Mar 2022£1,062£8,936£8,2641
31 Mar 2021£1,816£17K£6,8591
31 Mar 2020£1,995£18K£17K1
30 Mar 2020£4,035£25K£21K1
31 Mar 2019£5,579£22K£18K
30 Mar 2019£5,579£22K£18K1
31 Mar 2018£760£15K£16K

Where Thames Heating Services Ltd is registered

Thames Heating Services Ltd's registered office on a map of the UK

The registered office is in Sunbury-on-Thames (TW16), in the Spelthorne local authority area, South East. Show TW16 5ES on a map.

Other trade companies in TW16

What happens if Thames Heating Services 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 December 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 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 late1 Apr 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 late31 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
10167661
Status
Active
Company type
Private limited company
Incorporated
6 May 2016 (10 years ago)
Registered office
54 the Avenue, The Avenue, Sunbury-on-Thames, TW16 5ES
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 2025
Last confirmation statement
9 October 2025
Previous names
Daniel Smith Central Heating & Plumbing Ltd (until 23 Jan 2017)

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 Sunbury-on-Thames

Other active plumbing and heating companies registered in Sunbury-on-Thames.

All plumbing and heating companies in Sunbury-on-Thames · All trades in Sunbury-on-Thames · Plumbers and heating engineers across the UK

Frequently asked questions

When are Thames Heating Services Ltd's accounts due?

Thames Heating Services Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.

When is Thames Heating Services Ltd's CT600 due?

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

Is Thames Heating Services Ltd still trading?

Thames Heating Services 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 Thames Heating Services Ltd do?

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

How old is Thames Heating Services Ltd?

Thames Heating Services Ltd was incorporated on 6 May 2016, 10 years ago.

What is the penalty if Thames Heating Services 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 Thames Heating Services 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.

File accounts + CT600File now£49Let's talk