- Companies
- Electricians
- Plymouth
- R T J Martin Limited
R T J Martin Limited
- Company number
- 03240177
- Incorporated
- 20 Aug 199630 years trading
- Registered office
- 7 Sandy Court, Ashleigh Way Langage Business Park, Plymouth, Devon, PL7 5JX
- Nature of business
- Electrical installation
R T J Martin Limited is a 30-year-old private limited company registered in Plymouth, company number 03240177, one of 124 electrical contractors in Plymouth. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 down £1.8M (-93%) on the year before, to £140K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £496K against £732K owed within a year: 0.7 times cover.
- 11 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £140K | £440K | £496K | £732K | 11 |
| 30 Sep 2024 | £2M | £1.1M | £1.6M | £32K | 11 |
| 30 Sep 2023 | £1.9M | £1.2M | £1.7M | £119K | 10 |
| 30 Sep 2022 | £1.8M | £1.1M | £1.5M | £61K | 8 |
| 30 Sep 2021 | £1.7M | £998K | £1.5M | £87K | 9 |
| 30 Sep 2020 | £1.5M | £818K | £1.3M | £51K | 9 |
| 30 Sep 2019 | £1.5M | £821K | £1.3M | £126K | 11 |
| 30 Sep 2018 | £1.3M | £639K | £1.1M | £123K | 10 |
| 30 Sep 2017 | £1.1M | £875K | £924K | £139K | 10 |
| 30 Sep 2016 | £1.2M | £696K | £1M | £109K |
Public contracts won
R T J Martin Limited has 3 public sector contract awards on record; the ones with their own published value total £80K, from 2020 to 2025. Source: Contracts Finder and Find a Tender award notices. For 1 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 1 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Plymouth Community Homes Limited2 awards
- Devon County Council1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Plymouth Community Homes Limited | Western Power Distribution Works | £30K | 15 May 2025 |
| Plymouth Community Homes Limited | Rewiring National Grid at Ringmore Way | £50K | 12 May 2025 |
| Devon County Council | CPF1843-19 Devon Maintenance Panel Agreement 2020-2024 | Ceiling, not shown | 17 Feb 2020 |
Where R T J Martin Limited is registered
The registered office is in Plymouth (PL7), in the South Hams local authority area, South West. Show PL7 5JX on a map.
Other trade companies in PL7
- Taurus Scaffolding SW LimitedScaffolders
- Devon German Motor Works LtdMechanics and garages
- Wae LimitedProperty developers
- Munera Construction LtdInstallers
- Vision Retail (Southern) LimitedProperty developers
- Moor to Coast Electrical Services SW LtdElectricians
- Sound Structural LtdSpecialist contractors
- Great White Estates LtdProperty developers
Also registered at this address
13 other companies use the same registered office as R T J Martin Limited.
- A&A Concrete Repair LimitedFinishing trades
- Bridge Commercials South West LimitedMechanics and garages
- Buckclose LimitedProperty developers
- C B E (South West) LtdBuilders
- Hallmark Estates South West LimitedProperty developers
- Jem Scaffolding LimitedSpecialist contractors
- Kingsley Developers LimitedSpecialist contractors
- Kingsley Real Estate LimitedProperty developers
- Ladock Developments LimitedBuilders
- Plymouth Property Maintenance LtdBuilders
- Senate Properties (SW) LimitedProperty developers
- Sunny Banks Estates LimitedProperty developers
- We Are Ease LimitedProperty developers
What happens if R T J Martin 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 03240177
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 August 1996 (30 years ago)
- Registered office
- 7 Sandy Court, Ashleigh Way Langage Business Park, Plymouth, Devon, PL7 5JX
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 12 August 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Plymouth
Other active electrical contractors registered in Plymouth.
- R.D. Jukes & Co. Limited1974
- Redwire Technical Ltd2026
- RJB Solutions (South West) Limited2007
- Rowe Electrical Engineers Limited2009
- RT Electrical Engineers Ltd2026
- Rtes Electrical Ltd2026
- S P Harvey Electrical Limited2000
- S Trott Electrical Services Ltd2014
All electrical contractors in Plymouth · All trades in Plymouth · Electricians across the UK
Frequently asked questions
When are R T J Martin Limited's accounts due?
R T J Martin Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is R T J Martin Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is R T J Martin Limited still trading?
R T J Martin 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 R T J Martin Limited do?
R T J Martin Limited is registered under Electrical installation (SIC 43210).
How old is R T J Martin Limited?
R T J Martin Limited was incorporated on 20 August 1996, 30 years ago.
Has R T J Martin Limited won public sector contracts?
Yes. R T J Martin Limited has 3 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £80K), most recently from PLYMOUTH COMMUNITY HOMES LIMITED.
What is the penalty if R T J Martin 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 R T J Martin 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.