- Companies
- Specialist contractors
- Brentwood
- JST Windows & Doors Ltd
JST Windows & Doors Ltd
- Company number
- 13404880
- Incorporated
- 17 May 20215 years trading
- Registered office
- Blue House Farm Office Brentwood Road, West Horndon, Brentwood, Essex, CM13 3LX
- Nature of business
- Other specialised construction activities n.e.c.
JST Windows & Doors Ltd is a 5-year-old private limited company registered in Brentwood, company number 13404880, one of 114 specialist construction companies in Brentwood. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 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 up £40K (+242.3%) on the year before, to £57K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £70K against £18K owed within a year: 3.9 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2022 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £57K | £70K | £18K | 2 | |
| 31 May 2025 | £17K | £30K | £20K | 2 | |
| 31 May 2024 | £2,802 | £14K | £20K | 2 | |
| 31 May 2023 | £2,409 | £26K | £23K | 2 | |
| 31 May 2022 | £8,939 | £27K | £18K | 3 |
Who runs and owns JST Windows & Doors Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| J*** T*** | Director | May 2021 |
| S*** T*** | Director | May 2021 |
People with significant control (3)
Where JST Windows & Doors Ltd is registered
The registered office is in Brentwood (CM13), in the Thurrock local authority area, East of England. Show CM13 3LX on a map.
Other trade companies in CM13
- Van & Car Self Drive LtdMotor traders
- Marsh Harrier Developments LtdProperty developers
- Motor Dealer Sales LtdMotor traders
- Electrical PN LtdElectricians
- Torrtec LtdPlumbers and heating engineers
- Flushed Through Drainage Services LtdPlumbers and heating engineers
- RJFD Electrical LtdCivil engineering
- Welsted LtdJoiners and carpenters
Also registered at this address
21 other companies use the same registered office as JST Windows & Doors Ltd.
- Albert James Interiors LimitedFinishing trades
- Alpha Conservation LimitedCivil engineering
- CDB Construction Property Services LtdSpecialist contractors
- Countryside Spaces LtdProperty developers
- Dan Wright Fascia LimitedInstallers
- Era Lifts LtdMachinery repair and installation
- Gilmore's Plumbing LtdPlumbers and heating engineers
- Holgate Construction (London) LtdProperty developers
- J & L Davison Plumbing LimitedPlumbers and heating engineers
- JRW Automotive LimitedMechanics and garages
- LJB Building Services (Brentwood) LimitedProperty developers
- Mayfield Service (London) LimitedSpecialist contractors
- RTS Building & Maintenance LtdSpecialist contractors
- SNR Electrical LtdElectricians
- Soleasy LtdInstallers
- Stone Ark LB & Co LtdSpecialist contractors
- Tannoureen LtdCivil engineering
- Trade Motor Salvage LtdMotor traders
- Truestone Landscapes LimitedLandscapers and gardeners
- Wager Group LimitedSpecialist contractors
- WTT Corporation LimitedMotor traders
What happens if JST Windows & Doors 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 13404880
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 May 2021 (5 years ago)
- Registered office
- Blue House Farm Office Brentwood Road, West Horndon, Brentwood, Essex, CM13 3LX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 10 December 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Brentwood
Other active specialist construction companies registered in Brentwood.
- Kastrati Welding Ltd2022
- Katybuild Limited2008
- Kingsley Construction Management Limited1999
- Lenoir Enterprise Ltd2026
- Lewis Brickwork Contractors Ltd2016
- LKK Solution Services Ltd2013
- LS (Essex) Limited2020
- M Duggan & Sons Limited2010
All specialist construction companies in Brentwood · All trades in Brentwood · Specialist contractors across the UK
Frequently asked questions
When are JST Windows & Doors Ltd's accounts due?
JST Windows & Doors Ltd's next accounts are due at Companies House by 29 February 2028 (in 504 days), covering the period to 31 May 2027.
When is JST Windows & Doors Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is JST Windows & Doors Ltd still trading?
JST Windows & Doors 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 JST Windows & Doors Ltd do?
JST Windows & Doors Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is JST Windows & Doors Ltd?
JST Windows & Doors Ltd was incorporated on 17 May 2021, 5 years ago.
Who runs JST Windows & Doors Ltd?
JST Windows & Doors Ltd has 2 active directors, the longest-serving appointed in May 2021. Their names and service addresses are on the Companies House register.
Who owns JST Windows & Doors Ltd?
3 people or companies have significant control of JST Windows & Doors Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if JST Windows & Doors 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 JST Windows & Doors 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.