- Companies
- Plumbers and heating engineers
- Southend on Sea
- Gastec Services Limited
Gastec Services Limited
- Company number
- 03137051
- Incorporated
- 12 Dec 199530 years trading
- Registered office
- 161 Raphael Drive, Shoeburyness, Southend on Sea, Essex, SS3 9UR
- Nature of business
- Plumbing, heat and air-conditioning installation
Gastec Services Limited is a 30-year-old private limited company registered in Southend on Sea, company number 03137051, one of 23 plumbing and heating companies in Southend on Sea. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 30 July 2026 is due at HMRC on 30 July 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 £218 (+0.4%) on the year before, to £50K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £60K against £11K owed within a year: 5.3 times cover.
- 3 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 Jul 2025 | £50K | £56K | £60K | £11K | 3 |
| 31 Jul 2024 | £49K | £56K | £59K | £11K | 3 |
| 31 Jul 2023 | £59K | £69K | £71K | £12K | 3 |
| 31 Jul 2022 | £54K | £62K | £64K | £12K | 3 |
| 31 Jul 2021 | £57K | £64K | £67K | £12K | 3 |
| 31 Jul 2020 | £53K | £62K | £64K | £12K | 3 |
| 31 Jul 2019 | £53K | £63K | £65K | £13K | 3 |
| 31 Jul 2018 | £37K | £80K | £84K | £48K | 3 |
| 31 Jul 2017 | £31K | £62K | £64K | £35K | 5 |
| 31 Jul 2016 | £30K | £66K | £67K | £39K |
Where Gastec Services Limited is registered
The registered office is in Southend on Sea (SS3), in the Southend-on-Sea local authority area, East of England. Show SS3 9UR on a map.
Other trade companies in SS3
- Truck Components LtdMotor traders
- S1 Automotive Group LtdMechanics and garages
- MKF Cleaning LtdCleaning companies
- Tranquil Solutions LimitedElectricians
- Nord Air Conditioning LtdPlumbers and heating engineers
- Noco Group LtdCivil engineering
- Garrison Gardens LtdLandscapers and gardeners
- Freddaf Investments LimitedProperty developers
What happens if Gastec 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 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 | 31 Jul 2027 | £200 |
| 3 months late | 30 Oct 2027 | another £200 |
| 6 months late | 30 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 03137051
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 December 1995 (30 years ago)
- Registered office
- 161 Raphael Drive, Shoeburyness, Southend on Sea, Essex, SS3 9UR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 12 December 2025
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 Southend on Sea
Other active plumbing and heating companies registered in Southend on Sea.
- H T Cooling Services Ltd2026
- Heat-Plumb-Gas Ltd2018
- M Bottley Ltd2016
- Monument Plumbing Services Ltd2011
- O B Plumbing & Heating (Essex) Ltd2026
- P Massam Plumbing & Heating Ltd2015
- P.C.K Plumbing & Heating Southend Ltd2015
- Parsons & Pringle Limited2026
All plumbing and heating companies in Southend on Sea · All trades in Southend on Sea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Gastec Services Limited's accounts due?
Gastec Services Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 30 July 2026.
When is Gastec Services Limited's CT600 due?
The CT600 for the period to 30 July 2026 is due at HMRC by 30 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Gastec Services Limited still trading?
Gastec 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 Gastec Services Limited do?
Gastec Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Gastec Services Limited?
Gastec Services Limited was incorporated on 12 December 1995, 30 years ago.
What is the penalty if Gastec 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 Gastec 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.