- Companies
- Plumbers and heating engineers
- Harrow
- Commercial Gas Systems Ltd
Commercial Gas Systems Ltd
- Company number
- 08146331
- Incorporated
- 17 Jul 201214 years trading
- Registered office
- 13 Eastcote Road, Harrow, HA2 8LQ
- Nature of business
- Plumbing, heat and air-conditioning installation; Other service activities n.e.c.
Commercial Gas Systems Ltd is a 14-year-old private limited company registered in Harrow, company number 08146331, one of 154 plumbing and heating companies in Harrow. Its next accounts are due at Companies House on 29 September 2027, and the CT600 for the period to 29 December 2026 is due at HMRC on 29 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 £14K (+23%) on the year before, to £76K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £205K against £144K owed within a year: 1.4 times cover.
- 4 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 Dec 2025 | £76K | £205K | £144K | 4 | |
| 31 Dec 2024 | £61K | £155K | £108K | 4 | |
| 31 Dec 2023 | £60K | £136K | £101K | 4 | |
| 31 Dec 2022 | £69K | £176K | 4 | ||
| 31 Dec 2021 | £66K | £145K | £98K | 4 | |
| 31 Dec 2020 | £58K | £246K | £97K | 3 | |
| 31 Dec 2019 | £45K | £94K | £54K | 3 | |
| 31 Dec 2018 | £50K | £84K | £38K | ||
| 31 Dec 2017 | £47K | £70K | £28K | ||
| 31 Dec 2016 | £32K | £51K | £19K |
Where Commercial Gas Systems Ltd is registered
The registered office is in Harrow (HA2), in the Harrow local authority area, London. Show HA2 8LQ on a map.
Other trade companies in HA2
- KJP Engineering LtdElectricians
- JNJ Engineering LimitedCivil engineering
- Notting Hill Sew LtdRepair services
- Grandwellautos LtdMotor traders
- Multisteel Powdercoating LtdPainters and decorators
- Neon Systems LtdElectricians
- Firstclass Facilities LtdCleaning companies
- PMD Construct LtdBuilders
What happens if Commercial Gas Systems 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 29 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Sep 2027 to 29 Oct 2027 | £150 |
| 1 to 3 months late | 30 Oct 2027 to 29 Dec 2027 | £375 |
| 3 to 6 months late | 30 Dec 2027 to 29 Mar 2028 | £750 |
| More than 6 months late | From 30 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Dec 2027 | £200 |
| 3 months late | 29 Mar 2028 | another £200 |
| 6 months late | 29 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 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
- 08146331
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 July 2012 (14 years ago)
- Registered office
- 13 Eastcote Road, Harrow, HA2 8LQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other service activities n.e.c. (SIC 96090) - Year end
- 29 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 5 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 Harrow
Other active plumbing and heating companies registered in Harrow.
- Conserve Greene Limited2026
- Coterm Limited2023
- Crafters Global Ltd2022
- Deans Plumbing and Heating Limited2018
- Delta Gas Ltd2014
- Devonald Plumbing Limited2026
- DM Plumbing and Heating Site Services Ltd2026
- DNL Welding Services Limited2015
All plumbing and heating companies in Harrow · All trades in Harrow · Plumbers and heating engineers across the UK
Frequently asked questions
When are Commercial Gas Systems Ltd's accounts due?
Commercial Gas Systems Ltd's next accounts are due at Companies House by 29 September 2027 (in 351 days), covering the period to 29 December 2026.
When is Commercial Gas Systems Ltd's CT600 due?
The CT600 for the period to 29 December 2026 is due at HMRC by 29 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 September 2027.
Is Commercial Gas Systems Ltd still trading?
Commercial Gas Systems 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 Commercial Gas Systems Ltd do?
Commercial Gas Systems Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other service activities n.e.c. (SIC 96090).
How old is Commercial Gas Systems Ltd?
Commercial Gas Systems Ltd was incorporated on 17 July 2012, 14 years ago.
What is the penalty if Commercial Gas Systems 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 Commercial Gas Systems 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.