- Companies
- Plumbers and heating engineers
- Letchworth Garden City
- SJC Plumbing & Heating Services Limited
SJC Plumbing & Heating Services Limited
- Company number
- 11940907
- Incorporated
- 11 Apr 20197 years trading
- Registered office
- Unit 1B Focus Four, Fourth Avenue, Letchworth Garden City, Hertfordshire, SG6 2TU
- Nature of business
- Plumbing, heat and air-conditioning installation
SJC Plumbing & Heating Services Limited is a 7-year-old private limited company registered in Letchworth Garden City, company number 11940907, one of 20 plumbing and heating companies in Letchworth Garden City. Its next accounts are due at Companies House on 31 January 2028, and the CT600 for the period to 30 April 2027 is due at HMRC on 30 April 2028.
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 down £12K (-23.5%) on the year before, to £39K.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £51K against £24K owed within a year: 2.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2026 | £39K | £51K | £24K | 1 | |
| 30 Apr 2025 | £51K | £69K | £33K | 1 | |
| 30 Apr 2024 | £45K | £53K | £21K | 1 | |
| 30 Apr 2023 | £34K | £67K | £27K | 1 | |
| 30 Apr 2022 | £42K | £84K | £33K | 1 | |
| 30 Apr 2021 | £14K | £51K | £26K | 1 | |
| 30 Apr 2020 | £22K | £33K | £23K | 1 |
Where SJC Plumbing & Heating Services Limited is registered
The registered office is in Letchworth Garden City (SG6), in the North Hertfordshire local authority area, East of England. Show SG6 2TU on a map.
Other trade companies in SG6
- Combined Auto Services LimitedMotor traders
- G.O.A.L Energy Services LtdElectricians
- Bedmond Construction LtdProperty developers
- Barski Property Care LtdBuilders
- PK Construction and Stones LimitedBuilders
- McCormack Maintenance LtdCivil engineering
- Nitdas Cleaning Solution LtdCleaning companies
- Nbtotalproperty LtdLandscapers and gardeners
Also registered at this address
20 other companies use the same registered office as SJC Plumbing & Heating Services Limited.
- Amber Paving LimitedFinishing trades
- BHB Electrical and Construction Services LimitedElectricians
- Bywater Homes LimitedProperty developers
- Diljap Brickwork LtdBuilders
- E W Flooring Specialists LtdFloor and wall tilers
- Eversley Estates LtdProperty developers
- First Choice Scaffolding (GB) LtdScaffolders
- Frogmore Fencing LtdJoiners and carpenters
- Graham Property Solutions LtdSpecialist contractors
- H & W Property Valuers LimitedBuilders
- Hiretowire LtdElectricians
- Hope & Co Holdings LtdScaffolders
- K W Maintenance LimitedCleaning companies
- MBR Process Design LimitedCivil engineering
- NMD Associates LtdProperty developers
- Oak Commercial LtdBuilders
- Oak Developments (Bedfordshire) LimitedBuilders
- Ocean Surveying LtdSpecialist contractors
- RBDB LimitedProperty developers
- TT Installations LimitedPlumbers and heating engineers
What happens if SJC Plumbing & Heating 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 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2028 to 29 Feb 2028 | £150 |
| 1 to 3 months late | 1 Mar 2028 to 30 Apr 2028 | £375 |
| 3 to 6 months late | 1 May 2028 to 31 Jul 2028 | £750 |
| More than 6 months late | From 1 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 2029 | 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
- 11940907
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 April 2019 (7 years ago)
- Registered office
- Unit 1B Focus Four, Fourth Avenue, Letchworth Garden City, Hertfordshire, SG6 2TU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2026
- Last confirmation statement
- 14 March 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 Letchworth Garden City
Other active plumbing and heating companies registered in Letchworth Garden City.
- Taylored Plumbing Limited2006
- Treadaway Plumbing and Heating Limited2011
- Zen Cooling Limited2025
- Ad Plumbing & Heating Services Ltd2020
- All Things Water Ltd2021
- Andrew Stevenson Developments Ltd2014
- Bakker & Wilson Plumbing & Heating Ltd2013
- Blue Whale Plumbing and Heating Ltd2023
All plumbing and heating companies in Letchworth Garden City · All trades in Letchworth Garden City · Plumbers and heating engineers across the UK
Frequently asked questions
When are SJC Plumbing & Heating Services Limited's accounts due?
SJC Plumbing & Heating Services Limited's next accounts are due at Companies House by 31 January 2028 (in 475 days), covering the period to 30 April 2027.
When is SJC Plumbing & Heating Services Limited's CT600 due?
The CT600 for the period to 30 April 2027 is due at HMRC by 30 April 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2028.
Is SJC Plumbing & Heating Services Limited still trading?
SJC Plumbing & Heating 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 SJC Plumbing & Heating Services Limited do?
SJC Plumbing & Heating Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is SJC Plumbing & Heating Services Limited?
SJC Plumbing & Heating Services Limited was incorporated on 11 April 2019, 7 years ago.
What is the penalty if SJC Plumbing & Heating 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 SJC Plumbing & Heating 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.