- Companies
- Plumbers and heating engineers
- Leamington Spa
- G J Martin Gas and Heating Services Ltd
G J Martin Gas and Heating Services Ltd
- Company number
- 10756459
- Incorporated
- 5 May 20179 years trading
- Registered office
- 15 the Grange, Cubbington, Leamington Spa, Warwickshire, CV32 7LE
- Nature of business
- Plumbing, heat and air-conditioning installation
G J Martin Gas and Heating Services Ltd is a 9-year-old private limited company registered in Leamington Spa, company number 10756459, one of 34 plumbing and heating companies in Leamington Spa. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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 G J Martin Gas and Heating Services LtdOr 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 up £19K (+319.3%) on the year before, to £13K.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- Current assets of £976 against £1,386 owed within a year: 0.7 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £13K | £976 | £1,386 | 1 | |
| 31 Jul 2024 | -£6,057 | £3,694 | £5,533 | 0 | |
| 31 Jul 2023 | -£4,622 | £4,008 | £6,227 | 1 | |
| 31 Jul 2022 | -£10K | £7,912 | £7,282 | 1 | |
| 31 Jul 2021 | £2,245 | £2,655 | £410 | 1 | |
| 31 Jul 2020 | -£916 | £7,074 | £4,175 | 1 | |
| 31 Jul 2019 | -£780 | £2,688 | £268 | 1 | |
| 31 Jul 2018 | £1,035 | £6,357 | £2,028 |
Who runs and owns G J Martin Gas and Heating Services Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| G*** M*** | Director | May 2017 |
Person with significant control
Where G J Martin Gas and Heating Services Ltd is registered
The registered office is in Leamington Spa (CV32), in the Warwick local authority area, West Midlands. Show CV32 7LE on a map.
Other trade companies in CV32
- D.W. Property Enterprises LtdSpecialist contractors
- Goddards Automotive LtdMotor traders
- Urban Fabric Developments LimitedProperty developers
- S&M Roofing and Building LtdRoofers
- Black Lab Builds LimitedBuilders
- Fresh Home Decoration LtdFinishing trades
- William Enterprises LimitedFacilities management
- Tiger Vision Homes LimitedProperty developers
What happens if G J Martin Gas and 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 10756459
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 May 2017 (9 years ago)
- Registered office
- 15 the Grange, Cubbington, Leamington Spa, Warwickshire, CV32 7LE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 4 May 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 Leamington Spa
Other active plumbing and heating companies registered in Leamington Spa.
- Gas Water Energy Installations Ltd2026
- Green Box Energy Ltd2022
- Hague Heating Limited2017
- Heatedwright Ltd2025
- Heath Gas Services Ltd2020
- High Efficiency Heating Services Ltd2006
- J & K Gastech Limited2012
- J & K Gastech Maintenance Ltd2013
All plumbing and heating companies in Leamington Spa · All trades in Leamington Spa · Plumbers and heating engineers across the UK
Frequently asked questions
When are G J Martin Gas and Heating Services Ltd's accounts due?
G J Martin Gas and Heating Services Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is G J Martin Gas and Heating Services Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is G J Martin Gas and Heating Services Ltd still trading?
G J Martin Gas and 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 G J Martin Gas and Heating Services Ltd do?
G J Martin Gas and Heating Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is G J Martin Gas and Heating Services Ltd?
G J Martin Gas and Heating Services Ltd was incorporated on 5 May 2017, 9 years ago.
Who runs G J Martin Gas and Heating Services Ltd?
G J Martin Gas and Heating Services Ltd has 1 active director, the longest-serving appointed in May 2017. Their names and service addresses are on the Companies House register.
Who owns G J Martin Gas and Heating Services Ltd?
One person or company has significant control of G J Martin Gas and Heating Services Ltd: an individual (owns 75% or more of the shares).
What is the penalty if G J Martin Gas and 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 G J Martin Gas and Heating Services 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.