- Companies
- Plumbers and heating engineers
- Farnham
- SN Mechanical Services Limited
SN Mechanical Services Limited
- Company number
- 08789085
- Incorporated
- 25 Nov 201312 years trading
- Registered office
- 29 Alma Way, Farnham, GU9 0QN
- Nature of business
- Plumbing, heat and air-conditioning installation
SN Mechanical Services Limited is a 12-year-old private limited company registered in Farnham, company number 08789085, one of 36 plumbing and heating companies in Farnham. Its next accounts are due at Companies House on 29 November 2026, and its first CT600 is due at HMRC on 30 November 2026.
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 £26K (+798.9%) on the year before, to £29K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | £29K | £54K | £81K | 2 | |
| 30 Nov 2023 | £3,281 | £28K | £88K | 2 | |
| 30 Nov 2022 | £17K | £81K | £47K | 2 | |
| 30 Nov 2021 | £2,806 | £74K | £45K | 2 | |
| 30 Nov 2020 | £15K | £76K | £28K | 2 | |
| 30 Nov 2019 | £39K | £85K | £49K | ||
| 30 Nov 2018 | £1,932 | £28K | £27K | 2 | |
| 30 Nov 2017 | £358 | £24K | £24K | 2 | |
| 30 Nov 2016 | £13K | £21K | £47K | £35K | |
| 30 Nov 2015 | £439 | £2,093 | £20K | £25K |
Where SN Mechanical Services Limited is registered
The registered office is in Farnham (GU9), in the Waverley local authority area, South East. Show GU9 0QN on a map.
Other trade companies in GU9
- Willow & Gleam LtdCleaning companies
- Peak Fire Safety LtdInstallers
- My Property Maintenance Service LimitedProperty developers
- Uranos Integrated Services LimitedElectricians
- Turner Glazing LtdBuilders
- Premium Grip Mobile Tyres LtdMechanics and garages
- Sayer Group LimitedCivil engineering
- Farnham Inv & Dev LimitedProperty developers
What happens if SN 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 29 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Nov 2026 to 29 Dec 2026 | £150 |
| 1 to 3 months late | 30 Dec 2026 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 29 May 2027 | £750 |
| More than 6 months late | From 30 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 08789085
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 November 2013 (12 years ago)
- Registered office
- 29 Alma Way, Farnham, GU9 0QN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 29 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 25 November 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 Farnham
Other active plumbing and heating companies registered in Farnham.
- Steve Gold Air Conditioning Limited2024
- Surrey Mechanical Solutions Limited2026
- Tekul Ltd2024
- UK Renewables & Ventilation Ltd2023
- Ukph Limited2020
- Weyside Heating Services Ltd2020
- 3 Counties Eco Heating Ltd2023
- A P Plumbing & Heating Limited2018
All plumbing and heating companies in Farnham · All trades in Farnham · Plumbers and heating engineers across the UK
Frequently asked questions
When are SN Mechanical Services Limited's accounts due?
SN Mechanical Services Limited's next accounts are due at Companies House by 29 November 2026 (in 48 days), covering the period to 28 February 2026.
When is SN Mechanical Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 November 2025, due by 30 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is SN Mechanical Services Limited still trading?
SN 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 SN Mechanical Services Limited do?
SN Mechanical Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is SN Mechanical Services Limited?
SN Mechanical Services Limited was incorporated on 25 November 2013, 12 years ago.
What is the penalty if SN 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 SN 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.