- Company number
- 04523171
- Incorporated
- 30 Aug 200224 years trading
- Registered office
- Unit 3 Clifford Park, Clovelly Road Industrial Estate, Bideford, EX39 3FG
- Nature of business
- Glazing
NJ Martin Windows Limited is a 24-year-old private limited company registered in Bideford, company number 04523171, one of the UK's glazing companies. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £42K (+50.8%) on the year before, to £125K.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £96K against £213K owed within a year: 0.5 times cover.
- 6 employees on average, down from 7 the year before.
- Balance sheets on record for 5 years, 2014 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2024 | £125K | £96K | £213K | 6 | |
| 31 Aug 2023 | £83K | £71K | £140K | 7 | |
| 31 Aug 2016 | -£12K | £38K | £95K | £112K | |
| 31 Aug 2015 | £19K | £42K | £117K | £90K | |
| 31 Aug 2014 | -£9,564 | £18K | £64K | £55K |
Where NJ Martin Windows Limited is registered
The registered office is in Bideford (EX39), in the Torridge local authority area, South West. Show EX39 3FG on a map.
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What happens if NJ Martin Windows 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 04523171
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 August 2002 (24 years ago)
- Registered office
- Unit 3 Clifford Park, Clovelly Road Industrial Estate, Bideford, EX39 3FG
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 30 August 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for glazing companies
Glazing companies often take deposits before work starts. Deposits held at the year end are a liability, not income, until the job is done.
Similar companies in Bideford
Other active glazing companies registered in Bideford.
- Opal Windows (Yorkshire) Limited2002
- Crusader Windows (Wessex) Limited2002
- Envy Windows Limited2002
- S.E.A Windows & Doors Limited2002
- S.E.A. (Manufacturing) Windows & Doors Limited2002
- Croydon Glass Works Limited2002
- Digital Glazing Limited2002
- Windoors (Barrow) Limited2002
All glazing companies in Bideford · All trades in Bideford · Glaziers across the UK
Frequently asked questions
When are NJ Martin Windows Limited's accounts due?
NJ Martin Windows Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is NJ Martin Windows Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is NJ Martin Windows Limited still trading?
NJ Martin Windows 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 NJ Martin Windows Limited do?
NJ Martin Windows Limited is registered under Glazing (SIC 43342).
How old is NJ Martin Windows Limited?
NJ Martin Windows Limited was incorporated on 30 August 2002, 24 years ago.
What is the penalty if NJ Martin Windows 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 NJ Martin Windows 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.