- Companies
- Specialist contractors
- Amersham
- Mikron Environmental Services Limited
Mikron Environmental Services Limited
- Company number
- 06549715
- Incorporated
- 31 Mar 200818 years trading
- Registered office
- Unit C2A Comet Studios De Havilland Court, Penn Street, Amersham, Buckinghamshire, HP7 0PX
- Nature of business
- Other specialised construction activities n.e.c.
Mikron Environmental Services Limited is a 18-year-old private limited company registered in Amersham, company number 06549715, one of 13 specialist construction companies in Amersham. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £60K (+44.9%) on the year before, to £194K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £260K against £200K owed within a year: 1.3 times cover.
- 2 employees on average, up from 1 the year before.
- 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 Jun 2025 | £194K | £260K | £200K | 2 | |
| 30 Jun 2024 | £134K | £126K | £69K | 1 | |
| 30 Jun 2023 | £62K | £103K | £28K | 1 | |
| 30 Jun 2022 | £61K | £108K | £27K | 1 | |
| 30 Jun 2021 | £59K | £101K | £15K | 1 | |
| 30 Jun 2020 | £31K | £75K | £13K | 1 | |
| 30 Jun 2019 | £29K | £41K | £27K | ||
| 30 Jun 2018 | £34K | £53K | £39K | ||
| 30 Jun 2017 | £41K | £45K | £31K | ||
| 30 Jun 2016 | £40K | £14K | £45K | £31K |
Where Mikron Environmental Services Limited is registered
The registered office is in Amersham (HP7), in the Buckinghamshire local authority area, South East. Show HP7 0PX on a map.
Other trade companies in HP7
- Red Neck Ventures LtdInstallers
- Tef Electrical LtdElectricians
- Ealing Construction 1 LtdBuilders
- The Ev Centre LtdMechanics and garages
- The Brambles Development Group LtdProperty developers
- Amh Heating LtdPlumbers and heating engineers
- Mummery Roofing Co LtdRoofers
- Compact Spare Wheel LimitedMotor traders
Also registered at this address
17 other companies use the same registered office as Mikron Environmental Services Limited.
- Agile Scaffolding Contractors LtdCivil engineering
- Ared (London) LimitedProperty developers
- Auto Medics (Est 2010) LtdMechanics and garages
- B & T Online LimitedMotor traders
- B + T Tyre & Exhaust Centre LimitedMechanics and garages
- BGM Group Facilities Management LimitedCleaning companies
- Boom Refurbs & Developments LimitedProperty developers
- Healthcare Cleaning Solutions LimitedCleaning companies
- Heritage Hygiene Consultants LimitedCleaning companies
- HSB Development 1 LimitedProperty developers
- HSB Development 2 LimitedProperty developers
- HSB Investments LtdMotor traders
- Knights of the Round Cable LtdElectricians
- Lems Group LtdPlumbers and heating engineers
- LKF Mechanical Fitout LtdPlumbers and heating engineers
- Medic Line Auto Sales LtdMotor traders
- Mikron Consultancy Services LtdMotor traders
What happens if Mikron Environmental 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 06549715
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 March 2008 (18 years ago)
- Registered office
- Unit C2A Comet Studios De Havilland Court, Penn Street, Amersham, Buckinghamshire, HP7 0PX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 22 September 2026
- Previous names
- Autumnfly Limited (until 11 Jul 2009)
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Amersham
Other active specialist construction companies registered in Amersham.
- Right Track Installations Limited2016
- Sje Building Services Ltd2025
- SMD Contract Consulting Limited2013
- Stage 2 Screen Construction Limited2016
- Warmur Limited2015
- Adept Building Services Limited1996
- Bolster Construction Limited2004
- Cereda Concrete Service Ltd2019
All specialist construction companies in Amersham · All trades in Amersham · Specialist contractors across the UK
Frequently asked questions
When are Mikron Environmental Services Limited's accounts due?
Mikron Environmental Services Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Mikron Environmental Services Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Mikron Environmental Services Limited still trading?
Mikron Environmental Services Limited is listed as active on the Companies House register (checked 13 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 Mikron Environmental Services Limited do?
Mikron Environmental Services Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Mikron Environmental Services Limited?
Mikron Environmental Services Limited was incorporated on 31 March 2008, 18 years ago.
What is the penalty if Mikron Environmental 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 Mikron Environmental Services Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.