- Companies
- Electricians
- Grimsby
- Gary Mason Technologies Limited
Gary Mason Technologies Limited
- Company number
- 03680400
- Incorporated
- 8 Dec 199827 years trading
- Registered office
- 117-119 Cleethorpe Road, Grimsby, N E Lincolnshire, DN31 3ET
- Nature of business
- Electrical installation
Gary Mason Technologies Limited is a 27-year-old private limited company registered in Grimsby, company number 03680400, one of 123 electrical contractors in Grimsby. 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 £16K (+2.2%) on the year before, to £751K.
- Net assets rose in 8 of 8 year-on-year comparisons on record.
- Current assets of £757K against £6,202 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £751K | £753K | £757K | £6,202 | 0 |
| 31 Dec 2024 | £735K | £738K | £738K | £4,450 | 0 |
| 31 Dec 2023 | £734K | £774K | £775K | £44K | 0 |
| 31 Dec 2021 | £743K | £781K | £782K | £39K | 1 |
| 31 Dec 2020 | £738K | £773K | £783K | £45K | 1 |
| 31 Dec 2019 | £670K | £704K | £715K | £45K | 1 |
| 31 Dec 2018 | £642K | £368K | £431K | £34K | 1 |
| 31 Dec 2017 | £635K | £366K | £431K | £41K | 1 |
| 31 Dec 2016 | £572K | £367K | £382K | £54K | 1 |
| 31 Dec 2015 | £469K | £259K | £282K | £57K |
Where Gary Mason Technologies Limited is registered
The registered office is in Grimsby (DN31), in the North East Lincolnshire local authority area, Yorkshire and The Humber. Show DN31 3ET on a map.
Other trade companies in DN31
- Mybel H&S LimitedSpecialist contractors
- Lincolnshire Forest Services LtdLandscapers and gardeners
- Clearview Vision Consulting LimitedCivil engineering
- GCGH Electrical & Construction Solutions LimitedElectricians
- Grimsby Auto Salvage Co LtdMotor traders
- JMC Construction Services LimitedCivil engineering
- Hicks Automotive LimitedMechanics and garages
- Rutherford Landscaping and Supplies LimitedLandscapers and gardeners
Also registered at this address
19 other companies use the same registered office as Gary Mason Technologies Limited.
- Aclad UK LimitedInstallers
- C.A. Norman Plumbing LimitedPlumbers and heating engineers
- Camelot Ventures (UK) LtdMotor traders
- Central Doors LimitedMachinery repair and installation
- Churchcrown Builders LimitedBuilders
- Clee Auto Centre LimitedMechanics and garages
- Craig Brabben Building Contractor LimitedJoiners and carpenters
- Davis Engineering Services LimitedMachinery repair and installation
- Food Sector Construction LimitedBuilders
- Gy Cars LimitedMotor traders
- H & A Glover LimitedBuilders
- Im Natural Sports Services LimitedSpecialist contractors
- J. K. Construction & Building Services LtdBuilders
- KLW Property Services LimitedFinishing trades
- LTGM LimitedCivil engineering
- R D H Engineering LimitedSpecialist contractors
- Titen LimitedSpecialist contractors
- Toplift Cranes LimitedSpecialist contractors
- Woodland Motor Traders LimitedMotor traders
What happens if Gary Mason Technologies 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 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
- 03680400
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 December 1998 (27 years ago)
- Registered office
- 117-119 Cleethorpe Road, Grimsby, N E Lincolnshire, DN31 3ET
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 27 November 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Grimsby
Other active electrical contractors registered in Grimsby.
- GB Field Services Ltd2017
- GC Electrical Services Limited2015
- GCGH Electrical & Construction Solutions Limited2026
- GDX International Ventures Ltd2025
- Giles Electrical Services Ltd2019
- GP Electrical Services Limited2026
- Graded Electrical Contractors Limited2007
- Gresswell Electrical Services Limited2021
All electrical contractors in Grimsby · All trades in Grimsby · Electricians across the UK
Frequently asked questions
When are Gary Mason Technologies Limited's accounts due?
Gary Mason Technologies Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Gary Mason Technologies Limited'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 Gary Mason Technologies Limited still trading?
Gary Mason Technologies 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 Gary Mason Technologies Limited do?
Gary Mason Technologies Limited is registered under Electrical installation (SIC 43210).
How old is Gary Mason Technologies Limited?
Gary Mason Technologies Limited was incorporated on 8 December 1998, 27 years ago.
What is the penalty if Gary Mason Technologies 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 Gary Mason Technologies 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.