Ad Mech Ltd
- Company number
- 16961766
- Incorporated
- 14 Jan 2026
- Registered office
- 8 Fieldfare Way, Heybridge, Maldon, CM9 4EH
- Nature of business
- Plumbing, heat and air-conditioning installation
Ad Mech Ltd is a newly incorporated private limited company registered in Maldon, company number 16961766, one of 34 plumbing and heating companies in Maldon. Its next accounts are due at Companies House on 14 October 2027, and its first CT600 is due at HMRC on 13 January 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Ad Mech Ltd is registered
The registered office is in Maldon (CM9), in the Maldon local authority area, East of England. Show CM9 4EH on a map.
Other trade companies in CM9
- Rose Prestige Automotive LimitedMotor traders
- S&B Restoration LtdFinishing trades
- Ojf Air LimitedPlumbers and heating engineers
- Eluvis (Boston) LtdProperty developers
- Maldon Electrical LtdElectricians
- Eluvis Dover LtdProperty developers
- Eluvis Peasmarsh LtdProperty developers
- Rubberworx Safety Surfacing LtdGroundworks and demolition
What happens if Ad Mech 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 14 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 Oct 2027 to 14 Nov 2027 | £150 |
| 1 to 3 months late | 15 Nov 2027 to 14 Jan 2028 | £375 |
| 3 to 6 months late | 15 Jan 2028 to 14 Apr 2028 | £750 |
| More than 6 months late | From 15 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 16961766
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 January 2026
- Registered office
- 8 Fieldfare Way, Heybridge, Maldon, CM9 4EH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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 Maldon
Other active plumbing and heating companies registered in Maldon.
- Adam Taylor Plumbing & Heating Limited2003
- Adp Plumbing & Heating Ltd2019
- Aqua Worx Plumbing & Heating Limited2021
- Blue Jay Air Conditioning Limited2024
- Brightspark, Plumbing, Heating and Gas Ltd2015
- Bserv (Building Services) Limited2022
- CCS Air Conditioning Limited2005
- D J French Limited2006
All plumbing and heating companies in Maldon · All trades in Maldon · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ad Mech Ltd's accounts due?
Ad Mech Ltd's next accounts are due at Companies House by 14 October 2027 (in 366 days), covering the period to 31 January 2027.
When is Ad Mech Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 13 January 2027, due by 13 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ad Mech Ltd still trading?
Ad Mech 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 Ad Mech Ltd do?
Ad Mech Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ad Mech Ltd?
Ad Mech Ltd was incorporated on 14 January 2026, less than a year ago.
What is the penalty if Ad Mech 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 Ad Mech 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.