- Companies
- Electricians
- Carshalton
- Kal Building Limited
Kal Building Limited
- Company number
- 06550312
- Incorporated
- 31 Mar 200818 years trading
- Registered office
- 17 Wigmore Road, Carshalton, Surrey, SM5 1RE
- Nature of business
- Electrical installation
Kal Building Limited is a 18-year-old private limited company registered in Carshalton, company number 06550312, one of 33 electrical contractors in Carshalton. 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 down £1,756 (-20.3%) on the year before, to £6,911.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £11K against £19K owed within a year: 0.6 times cover.
- 1 employee 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 Mar 2025 | £6,911 | £11K | £19K | 1 | |
| 31 Mar 2024 | £8,667 | £10K | £20K | 1 | |
| 31 Mar 2023 | £11K | £8,438 | £21K | 1 | |
| 31 Mar 2022 | £12K | £9,688 | £24K | 1 | |
| 31 Mar 2021 | £22K | £13K | £37K | 1 | |
| 31 Mar 2020 | £13K | £9,497 | £25K | 1 | |
| 31 Mar 2019 | £3,142 | £7,434 | £6,847 | ||
| 31 Mar 2018 | £2,298 | £8,542 | £9,650 | ||
| 31 Mar 2017 | £13K | £550 | £7,999 | 1 | |
| 31 Mar 2016 | £18K | £2,166 | £10K |
Where Kal Building Limited is registered
The registered office is in Carshalton (SM5), in the Sutton local authority area, London. Show SM5 1RE on a map.
Other trade companies in SM5
- Rich Detailz LtdMechanics and garages
- Sutton Motor and Garage LtdMechanics and garages
- Ecobuild Plumbing & Heating LtdPlumbers and heating engineers
- Aaircon Services LtdPlumbers and heating engineers
- Perthy Properties (Greenhills) LimitedProperty developers
- Jophp LimitedCleaning companies
- Pro-Type Roofing LtdRoofers
- Mic Cleaning LimitedCleaning companies
What happens if Kal Building 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
- 06550312
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 March 2008 (18 years ago)
- Registered office
- 17 Wigmore Road, Carshalton, Surrey, SM5 1RE
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 31 March 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Carshalton
Other active electrical contractors registered in Carshalton.
- Keystone Connections Ltd2026
- L.I.T Electrical Services Ltd2016
- LB Electrical London Ltd2026
- MM Building Services Ltd2014
- Newlive Ltd2016
- Nextphase Contractors Ltd2025
- Ozone Controls Ltd2025
- Prime Ignition Ltd2012
All electrical contractors in Carshalton · All trades in Carshalton · Electricians across the UK
Frequently asked questions
When are Kal Building Limited's accounts due?
Kal Building Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Kal Building 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 Kal Building Limited still trading?
Kal Building 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 Kal Building Limited do?
Kal Building Limited is registered under Electrical installation (SIC 43210).
How old is Kal Building Limited?
Kal Building Limited was incorporated on 31 March 2008, 18 years ago.
What is the penalty if Kal Building 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 Kal Building 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.