- Companies
- Builders
- Carshalton
- Alg Home Improvements Ltd
Alg Home Improvements Ltd
- Company number
- 09166292
- Incorporated
- 7 Aug 201412 years trading
- Registered office
- 87 Wigmore Road, Carshalton, SM5 1RG
- Nature of business
- Construction of domestic buildings
Alg Home Improvements Ltd is a 12-year-old private limited company registered in Carshalton, company number 09166292, one of 104 building 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 up £6,133 (+11.1%) on the year before, to £61K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £93K against £140K owed within a year: 0.7 times cover.
- 6 employees on average, up from 5 the year before.
- 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 | £61K | £93K | £140K | 6 | |
| 31 Mar 2024 | £55K | £67K | £110K | 5 | |
| 31 Mar 2023 | £7,821 | £154K | £133K | 5 | |
| 31 Mar 2022 | £3,689 | £93K | £73K | 5 | |
| 31 Mar 2021 | £1,422 | £20K | £29K | 3 | |
| 31 Mar 2020 | £5,159 | £27K | £34K | 2 | |
| 31 Mar 2019 | £104 | £35K | £36K | ||
| 31 Aug 2018 | £3,993 | £61K | £58K | ||
| 31 Aug 2017 | £4,188 | £12K | £9,342 | ||
| 31 Aug 2016 | £1,210 | £34K | £35K |
Where Alg Home Improvements Ltd is registered
The registered office is in Carshalton (SM5), in the Sutton local authority area, London. Show SM5 1RG 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 Alg Home Improvements 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 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
- 09166292
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 August 2014 (12 years ago)
- Registered office
- 87 Wigmore Road, Carshalton, SM5 1RG
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 9 September 2026
- Previous names
- John's Decorators Ltd (until 11 Sep 2017)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Carshalton
Other active building contractors registered in Carshalton.
- Alir Construction Ltd2017
- Apex Fix Limited2025
- Artmixpro Amp Construction Limited2025
- Atlas Prime Construction Limited2026
- Az Construction & Renovation Ltd2026
- Az Plumbing & Heating Specialist Ltd.2015
- B.M. Building Service Contractors Ltd2026
- Babii Ihor Building Services Ltd2025
All building contractors in Carshalton · All trades in Carshalton · Builders across the UK
Frequently asked questions
When are Alg Home Improvements Ltd's accounts due?
Alg Home Improvements Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Alg Home Improvements Ltd'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 Alg Home Improvements Ltd still trading?
Alg Home Improvements 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 Alg Home Improvements Ltd do?
Alg Home Improvements Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Alg Home Improvements Ltd?
Alg Home Improvements Ltd was incorporated on 7 August 2014, 12 years ago.
What is the penalty if Alg Home Improvements 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 Alg Home Improvements 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.