- Companies
- Plumbers and heating engineers
- Hitchin
- Atec Mechanical Services Ltd
Atec Mechanical Services Ltd
- Company number
- 11596780
- Incorporated
- 1 Oct 20188 years trading
- Registered office
- Suite 4, 37 Bury Mead Road, Hitchin, Hertfordshire, SG5 1RT
- Nature of business
- Plumbing, heat and air-conditioning installation
Atec Mechanical Services Ltd is a 8-year-old private limited company registered in Hitchin, company number 11596780, one of 43 plumbing and heating companies in Hitchin. 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.
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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 £374K (+200.6%) on the year before, to £560K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £2.5M against £2M owed within a year: 1.3 times cover.
- 4 employees on average, up from 3 the year before.
- 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 Oct 2025 | £560K | £1.4M | £2.5M | £2M | 4 |
| 31 Oct 2024 | £186K | £92K | £727K | £536K | 3 |
| 31 Oct 2023 | £56K | £65K | £623K | £554K | 3 |
| 31 Oct 2022 | £29K | £8,604 | £690K | £634K | 6 |
| 31 Oct 2021 | £110K | £22K | £790K | £619K | 12 |
| 31 Oct 2020 | £142K | £82K | £791K | £609K | 12 |
| 31 Oct 2019 | £106K | £36K | £396K | £294K | 5 |
Where Atec Mechanical Services Ltd is registered
The registered office is in Hitchin (SG5), in the North Hertfordshire local authority area, East of England. Show SG5 1RT on a map.
Other trade companies in SG5
- Unlock Your Dreams LtdProperty developers
- The Peugeot and Renault Man LtdMechanics and garages
- Woods Property Solutions LtdBuilders
- PM Contractors LtdBuilders
- S. Harris Builders LimitedFinishing trades
- Stotfold Property Services LtdBuilders
- SGB Modern Access LtdScaffolders
- Top Class Roofing & Renovations LimitedRoofers
Also registered at this address
2 other companies use the same registered office as Atec Mechanical Services Ltd.
- E&W Services LtdPlumbers and heating engineers
- JNRS Workshop LtdMachinery repair and installation
What happens if Atec Mechanical Services 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
- 11596780
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 October 2018 (8 years ago)
- Registered office
- Suite 4, 37 Bury Mead Road, Hitchin, Hertfordshire, SG5 1RT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 21 September 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Hitchin
Other active plumbing and heating companies registered in Hitchin.
- Blue Planet Plumbing and Heating Ltd2020
- BMS Leak Detection Ltd2018
- Boilerpoint Ltd2021
- C Hobbs Plumbing and Heating Ltd2017
- Climech Limited2019
- DCL Plumbing and Heating Limited2021
- Dempsey Ductwork Limited2015
- DPS Heating & Plumbing Ltd2017
All plumbing and heating companies in Hitchin · All trades in Hitchin · Plumbers and heating engineers across the UK
Frequently asked questions
When are Atec Mechanical Services Ltd's accounts due?
Atec Mechanical Services Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Atec Mechanical Services 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 Atec Mechanical Services Ltd still trading?
Atec Mechanical Services 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 Atec Mechanical Services Ltd do?
Atec Mechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Atec Mechanical Services Ltd?
Atec Mechanical Services Ltd was incorporated on 1 October 2018, 8 years ago.
What is the penalty if Atec Mechanical Services 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 Atec Mechanical Services 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.