- Companies
- Plumbers and heating engineers
- C T Boiler Services Limited
C T Boiler Services Limited
- Company number
- 06826719
- Incorporated
- 23 Feb 200917 years trading
- Registered office
- Gwenddwr, Lon Merllyn, Criccieth, Gwynedd, LL52 0HT
- Nature of business
- Plumbing, heat and air-conditioning installation
C T Boiler Services Limited is a 17-year-old private limited company registered in Criccieth, company number 06826719, one of the UK's plumbing and heating companies. 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.
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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 up £55K (+28.2%) on the year before, to £250K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £288K against £37K owed within a year: 7.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £250K | £247K | £288K | £37K | 2 |
| 31 Mar 2024 | £195K | £214K | £244K | £49K | 2 |
| 31 Mar 2023 | £160K | £132K | £198K | £38K | 2 |
| 31 Mar 2022 | £147K | £135K | £188K | £41K | 2 |
| 31 Mar 2021 | £158K | £113K | £197K | £39K | 2 |
| 31 Mar 2020 | £161K | £172K | £218K | £57K | 2 |
| 31 Mar 2019 | £142K | £136K | £207K | £65K | 2 |
| 31 Mar 2018 | £121K | £134K | £176K | £55K | 2 |
| 31 Mar 2017 | £99K | £94K | £197K | £98K | 2 |
| 31 Mar 2016 | £69K | £60K | £125K | £56K |
Where C T Boiler Services Limited is registered
The registered office is in Criccieth (LL52), in the Gwynedd local authority area, Wales. Show LL52 0HT on a map.
Other trade companies in LL52
- North Wales Sprinklers LtdPlumbers and heating engineers
- Ieuan Rowlands Construction LimitedBuilders
- James & Son Electrical LtdElectricians
- Thurgood Heating LtdPlumbers and heating engineers
- DHS Kitchen Installations LimitedFinishing trades
- 316 Marine Fabrication LimitedMachinery repair and installation
- I J Plastering LtdPlasterers
- D W Williams Construction Contracting LtdProperty developers
What happens if C T Boiler 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2028 | another 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
- 06826719
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 February 2009 (17 years ago)
- Registered office
- Gwenddwr, Lon Merllyn, Criccieth, Gwynedd, LL52 0HT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 23 February 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
Other active plumbing and heating companies.
- Coulby Newham Plumbing & Heating Limited2009
- Unique Plumbing & Heating Limited2009
- Visick Plumbing and Heating Limited2009
- A. Parker Plumbing Limited2009
- Rob Bartels Plumbing, Heating & Property Maintenance Limited2009
- Wood-Burns Limited2009
- Butterworth Heating Limited2009
- Solar Projects & Services Ltd2009
Frequently asked questions
When are C T Boiler Services Limited's accounts due?
C T Boiler Services Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is C T Boiler Services Limited'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 C T Boiler Services Limited still trading?
C T Boiler 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 C T Boiler Services Limited do?
C T Boiler Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is C T Boiler Services Limited?
C T Boiler Services Limited was incorporated on 23 February 2009, 17 years ago.
What is the penalty if C T Boiler 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 C T Boiler Services Limited on Companies House for filed documents, officers and the full history.
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.