- Companies
- Plumbers and heating engineers
- Fareham
- Simon Installation Services Limited
Simon Installation Services Limited
- Company number
- 05018912
- Incorporated
- 19 Jan 200422 years trading
- Registered office
- Fare Paea 15 the Ridgeway, Down End, Fareham, Hampshire, PO16 8RF
- Nature of business
- Plumbing, heat and air-conditioning installation
Simon Installation Services Limited is a 22-year-old private limited company registered in Fareham, company number 05018912, one of 119 plumbing and heating companies in Fareham. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £15K (-2.1%) on the year before, to £733K.
- Net assets rose in 1 of 9 year-on-year comparisons on record.
- Current assets of £238K against £59K owed within a year: 4.0 times cover.
- 3 employees 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 Sep 2025 | £733K | £126K | £238K | £59K | 3 |
| 30 Sep 2024 | £748K | £108K | £230K | £46K | 3 |
| 30 Sep 2023 | £754K | £137K | £226K | £15K | 3 |
| 30 Sep 2022 | £817K | £233K | £360K | £29K | 3 |
| 30 Sep 2021 | £846K | £322K | £384K | £16K | 3 |
| 30 Sep 2020 | £846K | £324K | £390K | £16K | 3 |
| 30 Sep 2019 | £928K | £353K | £415K | £12K | 3 |
| 30 Sep 2018 | £1M | £502K | £537K | £31K | 5 |
| 30 Sep 2017 | £1.3M | £1.2M | £1.3M | £52K | 5 |
| 30 Sep 2016 | £1.3M | £1.3M | £1.4M | £71K |
Where Simon Installation Services Limited is registered
The registered office is in Fareham (PO16), in the Fareham local authority area, South East. Show PO16 8RF on a map.
Other trade companies in PO16
- Telos Contracts LtdFinishing trades
- Grappuch LimitedFinishing trades
- Cis UK Solutions LtdElectricians
- Pato Construction Group LtdBuilders
- JMS Utilities LimitedCivil engineering
- C Hill Property Maintenance LtdFinishing trades
- BJM Fencing & Landscaping LtdSpecialist contractors
- Baltic Scaffolding LtdScaffolders
What happens if Simon Installation 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 05018912
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 January 2004 (22 years ago)
- Registered office
- Fare Paea 15 the Ridgeway, Down End, Fareham, Hampshire, PO16 8RF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 19 January 2026
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 Fareham
Other active plumbing and heating companies registered in Fareham.
- Solent Cooling Solutions Ltd2018
- Solent Heating Ltd2015
- Southdowns Gas Ltd2020
- Spec Mechanical Services Ltd2026
- Street Gas Ltd2021
- Stubbington Plumbing and Heating Ltd2017
- Taylormade Gas Ltd2021
- THBP Ltd2023
All plumbing and heating companies in Fareham · All trades in Fareham · Plumbers and heating engineers across the UK
Frequently asked questions
When are Simon Installation Services Limited's accounts due?
Simon Installation Services Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Simon Installation Services Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Simon Installation Services Limited still trading?
Simon Installation 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 Simon Installation Services Limited do?
Simon Installation Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Simon Installation Services Limited?
Simon Installation Services Limited was incorporated on 19 January 2004, 22 years ago.
What is the penalty if Simon Installation 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 Simon Installation 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.