- Companies
- Specialist contractors
- Keighley
- Firefly Welding Limited
Firefly Welding Limited
- Company number
- 11619369
- Incorporated
- 12 Oct 20188 years trading
- Registered office
- Old Station Goods Yard Skipton Road, Cross Hills, Keighley, West Yorkshire, BD20 7DS
- Nature of business
- Other specialised construction activities n.e.c.
Firefly Welding Limited is a 8-year-old private limited company registered in Keighley, company number 11619369, one of 37 specialist construction companies in Keighley. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £192 (+192%) on the year before, to £292.
- Current assets of £27K against £27K owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2019 to 2020.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2020 | £292 | £27K | £27K | 1 | |
| 31 Mar 2019 | £100 | £100 | 1 |
Where Firefly Welding Limited is registered
The registered office is in Keighley (BD20), in the North Yorkshire local authority area, Yorkshire and The Humber. Show BD20 7DS on a map.
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What happens if Firefly Welding 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11619369
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 October 2018 (8 years ago)
- Registered office
- Old Station Goods Yard Skipton Road, Cross Hills, Keighley, West Yorkshire, BD20 7DS
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 1 October 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Keighley
Other active specialist construction companies registered in Keighley.
- First Tunnels Limited2001
- Fraser Green Consulting Limited2025
- Hangfast Limited2006
- Keybury Security Systems Limited1982
- KF Power Services Ltd2016
- Kiwi Landscapes Limited2003
- Lawsons Playzones & Groundworks Ltd2007
- Leeways Ventilation Ltd2014
All specialist construction companies in Keighley · All trades in Keighley · Specialist contractors across the UK
Frequently asked questions
When are Firefly Welding Limited's accounts due?
Firefly Welding Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Firefly Welding Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Firefly Welding Limited still trading?
Firefly Welding 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 Firefly Welding Limited do?
Firefly Welding Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Firefly Welding Limited?
Firefly Welding Limited was incorporated on 12 October 2018, 8 years ago.
What is the penalty if Firefly Welding 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 Firefly Welding 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.