- Companies
- Plumbers and heating engineers
- Slough
- Mac Plumbing and Heating Ltd
Mac Plumbing and Heating Ltd
- Company number
- 13677122
- Incorporated
- 13 Oct 20215 years trading
- Registered office
- 20 Aylesbury Crescent, Slough, SL1 3ES
- Nature of business
- Plumbing, heat and air-conditioning installation
Mac Plumbing and Heating Ltd is a 5-year-old private limited company registered in Slough, company number 13677122, one of 128 plumbing and heating companies in Slough. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Mac Plumbing and Heating LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £150 (+98.7%) on the year before, to £302.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £302 | £302 | 1 | ||
| 31 Oct 2024 | £152 | £152 | 1 | ||
| 31 Oct 2023 | £2 | £2 | 1 | ||
| 31 Oct 2022 | £6 | £6 | 1 |
Where Mac Plumbing and Heating Ltd is registered
The registered office is in Slough (SL1), in the Slough local authority area, South East. Show SL1 3ES on a map.
Other trade companies in SL1
- Yanky Construction LtdBuilders
- Westside Automotive LtdMotor traders
- Shadeworks LtdInstallers
- Yad Building Services LimitedBuilders
- Slough Vehicle Repair Centre LtdMechanics and garages
- Hadi Automotive LtdMotor traders
- Imperial Berkshire Motors LtdMotor traders
- MDN General LtdBuilders
What happens if Mac Plumbing and Heating 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 13677122
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 October 2021 (5 years ago)
- Registered office
- 20 Aylesbury Crescent, Slough, SL1 3ES
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- 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.
- Majesty Solutions Limited2024
- Mas Plumbing & Heating Services Ltd2025
- MK Gas and Electric Ltd2021
- Mki Plumbing Ltd2021
- MSC Plumber Limited2020
- MSJ Plumbing & Heating Ltd2014
- MTP Cooling Ltd2009
- Nasgas Ltd2021
All plumbing and heating companies in Slough · All trades in Slough · Plumbers and heating engineers across the UK
Frequently asked questions
When are Mac Plumbing and Heating Ltd's accounts due?
Mac Plumbing and Heating Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Mac Plumbing and Heating Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Mac Plumbing and Heating Ltd still trading?
Mac Plumbing and Heating 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 Mac Plumbing and Heating Ltd do?
Mac Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Mac Plumbing and Heating Ltd?
Mac Plumbing and Heating Ltd was incorporated on 13 October 2021, 5 years ago.
What is the penalty if Mac Plumbing and Heating 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 Mac Plumbing and Heating 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.