- Companies
- Installers
- Carterton
- Sertix Solutions Limited
Sertix Solutions Limited
- Company number
- 09944567
- Incorporated
- 11 Jan 201610 years trading
- Registered office
- 17 Black Bourton Road, Carterton, OX18 3HQ
- Nature of business
- Other construction installation
Sertix Solutions Limited is a 10-year-old private limited company registered in Carterton, company number 09944567, one of 8 installation companies (insulation, lifts, shutters and similar) in Carterton. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
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 £73K (-204.6%) on the year before, to -£37K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £12K against £49K owed within a year: 0.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | -£37K | -£1 | £12K | £49K | 2 |
| 31 Jan 2025 | £36K | £15K | £51K | 2 | |
| 31 Jan 2024 | £50K | £16K | £65K | 2 | |
| 31 Jan 2023 | £49K | £15K | £63K | 2 | |
| 31 Jan 2022 | £23K | £18K | £40K | 2 | |
| 31 Jan 2021 | £21K | £22K | £43K | 2 | |
| 31 Jan 2020 | £21K | £29K | £49K | ||
| 31 Jan 2019 | £12K | £12K | £24K | ||
| 31 Jan 2018 | -£3,182 | £21K | £24K | ||
| 31 Jan 2017 | £3,157 | £438 | £15K | £13K | 2 |
Where Sertix Solutions Limited is registered
The registered office is in Carterton (OX18), in the West Oxfordshire local authority area, South East. Show OX18 3HQ on a map.
Other trade companies in OX18
- Roof Oxford LimitedBuilders
- MJ Iron & Earth Ltd.Machinery repair and installation
- King Groundwork & Landscaping LtdSpecialist contractors
- Delta London Decorate LtdPainters and decorators
- Hayes & Cole LimitedCivil engineering
- CW Construction Consultancy LtdBuilders
- 99 Problems LtdLandscapers and gardeners
- Pressed for Time Construction Cleaning LtdCleaning companies
Also registered at this address
5 other companies use the same registered office as Sertix Solutions Limited.
- A & H Ceiling LimitedPlasterers
- Begbroke Smart Repair LimitedMechanics and garages
- Kelliher Construction LtdBuilders
- R C Finishers LtdFloor and wall tilers
- West Oxfordshire Roofing LimitedRoofers
What happens if Sertix Solutions 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 31 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 09944567
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 January 2016 (10 years ago)
- Registered office
- 17 Black Bourton Road, Carterton, OX18 3HQ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 31 March 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Carterton
Other active installation companies (insulation, lifts, shutters and similar) registered in Carterton.
- Vale Conservatory Company Limited2002
- Wet Rock Adventures Ltd2025
- Whiteleaf Project Management Limited2013
- Apex Loft Solutions Ltd2025
- Cotswoldprecision Ltd2026
- Newbury Marble Limited2017
- S. J. McBride Limited2003
All installation companies (insulation, lifts, shutters and similar) in Carterton · All trades in Carterton · Installers across the UK
Frequently asked questions
When are Sertix Solutions Limited's accounts due?
Sertix Solutions Limited's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.
When is Sertix Solutions Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Sertix Solutions Limited still trading?
Sertix Solutions 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 Sertix Solutions Limited do?
Sertix Solutions Limited is registered under Other construction installation (SIC 43290).
How old is Sertix Solutions Limited?
Sertix Solutions Limited was incorporated on 11 January 2016, 10 years ago.
What is the penalty if Sertix Solutions 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 Sertix Solutions 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.