- Companies
- Plumbers and heating engineers
- Calne
- SQ Plumbing and Heating Ltd
SQ Plumbing and Heating Ltd
- Company number
- 15398047
- Incorporated
- 8 Jan 20242 years trading
- Registered office
- 30 Dowding Drive, Calne, SN11 8QL
- Nature of business
- Plumbing, heat and air-conditioning installation
SQ Plumbing and Heating Ltd is a 2-year-old private limited company registered in Calne, company number 15398047, one of 18 plumbing and heating companies in Calne. 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.
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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 £1,495 (+11.1%) on the year before, to £15K.
- Current assets of £28K against £19K owed within a year: 1.5 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £15K | £24K | £28K | £19K | 1 |
| 31 Dec 2024 | £13K | £20K | £22K | £9,122 | 1 |
Where SQ Plumbing and Heating Ltd is registered
The registered office is in Calne (SN11), in the Wiltshire local authority area, South West. Show SN11 8QL on a map.
Other trade companies in SN11
- Ionexis LimitedMachinery repair and installation
- B&L Mobile Car Repairs LtdMechanics and garages
- DCH Services (Wilts) LtdPlumbers and heating engineers
- Ezzyfix Auto Solutions LtdMotor traders
- Set Stone Tiling LtdBuilders
- C.D Substructures LtdBuilders
- Ever So Good Home Improvements LtdSpecialist contractors
- Hardy's Smart Repairs LtdMechanics and garages
What happens if SQ Plumbing and Heating 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 House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 15398047
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 January 2024 (2 years ago)
- Registered office
- 30 Dowding Drive, Calne, SN11 8QL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 7 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 Calne
Other active plumbing and heating companies registered in Calne.
- TWS Plumbing & Heating Limited2010
- A. Vines Ltd2003
- Aws Plumbing Limited2007
- Darren Blackman Heating and Plumbing Services Ltd2021
- DCH Services (Wilts) Ltd2026
- DPS Plumbing & Heating Engineer & Son Ltd2010
- Duah Heating Ltd2019
- G.W. Slade & Son Limited2002
All plumbing and heating companies in Calne · All trades in Calne · Plumbers and heating engineers across the UK
Frequently asked questions
When are SQ Plumbing and Heating Ltd's accounts due?
SQ Plumbing and Heating Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is SQ Plumbing and Heating 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 SQ Plumbing and Heating Ltd still trading?
SQ Plumbing and Heating 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 SQ Plumbing and Heating Ltd do?
SQ Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is SQ Plumbing and Heating Ltd?
SQ Plumbing and Heating Ltd was incorporated on 8 January 2024, 2 years ago.
What is the penalty if SQ Plumbing and Heating 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 SQ Plumbing and Heating Ltd 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.