- Companies
- Plumbers and heating engineers
- Slough
- KH Mechanical Services Limited
KH Mechanical Services Limited
- Company number
- 08562789
- Incorporated
- 10 Jun 201313 years trading
- Registered office
- Unit 3C/3D Canal Wharf Station Road, Langley, Slough, SL3 6EG
- Nature of business
- Plumbing, heat and air-conditioning installation
KH Mechanical Services Limited is a 13-year-old private limited company registered in Slough, company number 08562789, one of 128 plumbing and heating companies in Slough. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £182K (+71.8%) on the year before, to £436K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £537K against £164K owed within a year: 3.3 times cover.
- 7 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £436K | £221K | £537K | £164K | 7 |
| 31 Mar 2025 | £254K | £365K | £641K | £428K | 7 |
| 31 Mar 2024 | £745K | £498K | £1.3M | £546K | 8 |
| 31 Mar 2023 | £531K | £252K | £670K | £172K | 10 |
| 31 Mar 2022 | £480K | £274K | £735K | £271K | 12 |
| 31 Mar 2021 | £205K | £366K | £568K | £325K | 10 |
| 31 Mar 2020 | £104K | £121K | £344K | £237K | 8 |
| 31 Mar 2019 | £138K | £29K | £265K | £136K | 4 |
| 31 Mar 2018 | £99K | £9,282 | £299K | £204K | 3 |
| 31 Mar 2017 | £64K | £33K | £225K | £169K |
Where KH Mechanical Services Limited is registered
The registered office is in Slough (SL3), in the Slough local authority area, South East. Show SL3 6EG on a map.
Other trade companies in SL3
- Tac Design & Build LtdFinishing trades
- G&S Formwork LtdBuilders
- Klenzo LtdCleaning companies
- West London Crown Construction LtdBuilders
- Dahlia Investment Group LimitedProperty developers
- Ekon Electrics LtdElectricians
- R&G Maintenance LtdCleaning companies
- Cornerstone Homes & Estates LtdProperty developers
What happens if KH Mechanical Services 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 08562789
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 June 2013 (13 years ago)
- Registered office
- Unit 3C/3D Canal Wharf Station Road, Langley, Slough, SL3 6EG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 12 October 2025
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Slough
Other active plumbing and heating companies registered in Slough.
- London Gas Engineers Ltd2012
- London Heating and Gas Services Limited2024
- M&M Building Services Ltd2022
- Mac Plumbing and Heating Ltd2021
- Majesty Solutions Limited2024
- Mas Plumbing & Heating Services Ltd2025
- MK Gas and Electric Ltd2021
- Mki Plumbing Ltd2021
All plumbing and heating companies in Slough · All trades in Slough · Plumbers and heating engineers across the UK
Frequently asked questions
When are KH Mechanical Services Limited's accounts due?
KH Mechanical Services Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is KH Mechanical Services Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is KH Mechanical Services Limited still trading?
KH Mechanical Services 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 KH Mechanical Services Limited do?
KH Mechanical Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is KH Mechanical Services Limited?
KH Mechanical Services Limited was incorporated on 10 June 2013, 13 years ago.
What is the penalty if KH Mechanical Services 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 KH Mechanical Services 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.