- Companies
- Electricians
- Carshalton
- MM Building Services Ltd
MM Building Services Ltd
- Company number
- 08993836
- Incorporated
- 14 Apr 201412 years trading
- Registered office
- 260 Green Wrythe Lane, Carshalton, Surrey, SM5 1TS
- Nature of business
- Electrical installation; Plastering; Joinery installation; Other specialised construction activities n.e.c.
MM Building Services Ltd is a 12-year-old private limited company registered in Carshalton, company number 08993836, one of 33 electrical contractors in Carshalton. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 rose in 6 of 8 year-on-year comparisons on record.
- 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | 1 | ||||
| 30 Apr 2024 | £12K | £5,158 | £14 | 1 | |
| 30 Apr 2023 | -£3,645 | £2,158 | £16K | 1 | |
| 30 Apr 2022 | £19K | £5,698 | £302 | 1 | |
| 30 Apr 2021 | £5,111 | £8,868 | £3,757 | 1 | |
| 30 Apr 2020 | £4,152 | £27K | £23K | 1 | |
| 30 Apr 2019 | £1,074 | £1,947 | £873 | ||
| 30 Apr 2018 | £2,561 | £2,845 | £284 | ||
| 30 Apr 2017 | £1,411 | £1,739 | £328 | ||
| 30 Apr 2016 | £155 | £186 | £31 |
Where MM Building Services Ltd is registered
The registered office is in Carshalton (SM5), in the Sutton local authority area, London. Show SM5 1TS 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 MM Building Services 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 08993836
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 April 2014 (12 years ago)
- Registered office
- 260 Green Wrythe Lane, Carshalton, Surrey, SM5 1TS
- Nature of business
- Electrical installation (SIC 43210)
Plastering (SIC 43310)
Joinery installation (SIC 43320)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 14 April 2026
- Previous names
- MM Carpentry Building Services Ltd (until 20 Jan 2020)
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.
- Newlive Ltd2016
- Nextphase Contractors Ltd2025
- Ozone Controls Ltd2025
- Prime Ignition Ltd2012
- R C Electricool Limited2024
- R-Tec Services Ltd.2008
- S K Electrical London Ltd2017
- SGS Electrical & Building Services Limited2021
All electrical contractors in Carshalton · All trades in Carshalton · Electricians across the UK
Frequently asked questions
When are MM Building Services Ltd's accounts due?
MM Building Services Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is MM Building Services Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is MM Building Services Ltd still trading?
MM Building Services 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 MM Building Services Ltd do?
MM Building Services Ltd is registered under Electrical installation (SIC 43210); Plastering (SIC 43310); Joinery installation (SIC 43320); Other specialised construction activities n.e.c. (SIC 43999).
How old is MM Building Services Ltd?
MM Building Services Ltd was incorporated on 14 April 2014, 12 years ago.
What is the penalty if MM Building Services 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 MM Building Services 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.