- Companies
- Plumbers and heating engineers
- Salisbury
- Marshisaacs Ltd
Marshisaacs Ltd
- Company number
- 11150330
- Incorporated
- 15 Jan 20188 years trading
- Registered office
- 17 High Street, Sixpenny Handley, Salisbury, SP5 5NR
- Nature of business
- Plumbing, heat and air-conditioning installation
Marshisaacs Ltd is a 8-year-old private limited company registered in Salisbury, company number 11150330, one of 64 plumbing and heating companies in Salisbury. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £57K (+180.2%) on the year before, to £25K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £22K against £25K owed within a year: 0.9 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £25K | £22K | £25K | 3 | |
| 31 Jan 2024 | -£32K | £8,292 | £36K | £32K | 3 |
| 31 Jan 2023 | -£40K | £26K | £44K | £24K | 3 |
| 31 Jan 2022 | -£7,081 | £37K | £54K | £20K | 3 |
| 31 Jan 2021 | -£13K | £57K | £80K | £22K | 3 |
| 31 Jan 2020 | £7,005 | £24K | £31K | £28K | 3 |
| 31 Jan 2019 | £2,806 | £9,734 | £13K | £12K | 2 |
Where Marshisaacs Ltd is registered
The registered office is in Salisbury (SP5), in the Dorset local authority area, South West. Show SP5 5NR on a map.
Other trade companies in SP5
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- Roofcraft Wessex LtdInstallers
- Marks Motor Wheels LtdMotor traders
- Charlie Evans Carpentry and Oak Framing LtdBuilders
- Mavennest LtdCleaning companies
- Wolff Investments LimitedProperty developers
- Kudu Construction LtdBuilders
- Inspire Energy LimitedPlumbers and heating engineers
What happens if Marshisaacs 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 11150330
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 2018 (8 years ago)
- Registered office
- 17 High Street, Sixpenny Handley, Salisbury, SP5 5NR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 9 September 2026
- Previous names
- Mi Heating & Plumbing Ltd (until 15 Dec 2020)
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 Salisbury
Other active plumbing and heating companies registered in Salisbury.
- Monument Mechanical Limited2019
- MRC Heating Services Limited2011
- MTP Services 24/7 Ltd2025
- New Forest Plumbing and Heating Ltd2010
- NI Cutler Heating & Plumbing Limited2003
- Ob Heating and Plumbing Ltd2025
- Ocean Solar Ltd2012
- Peach Heating Ltd2024
All plumbing and heating companies in Salisbury · All trades in Salisbury · Plumbers and heating engineers across the UK
Frequently asked questions
When are Marshisaacs Ltd's accounts due?
Marshisaacs Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Marshisaacs Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Marshisaacs Ltd still trading?
Marshisaacs 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 Marshisaacs Ltd do?
Marshisaacs Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Marshisaacs Ltd?
Marshisaacs Ltd was incorporated on 15 January 2018, 8 years ago.
What is the penalty if Marshisaacs 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 Marshisaacs 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.