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Astech Environmental Limited

ActiveTotal exemption (full) accountsSpecialist contractorsWimborne
Company number
10339197
Incorporated
22 Aug 201610 years trading
Registered office
Faulkner House, 31 West Street, Wimborne, Dorset, BH21 1JS
Nature of business
Other specialised construction activities n.e.c.; Other business support service activities n.e.c.
Accounts due in
261 days
30 Jun 2027
Net assets
£377K▲
+30.1% on the year before
Cash at bank
£208K▼
At 30 Sep 2025
Employees
15
Average during the year
From the Companies House register, 1 Oct 2026

Astech Environmental Limited is a 10-year-old private limited company registered in Wimborne, company number 10339197, one of 52 specialist construction companies in Wimborne. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
30 Jun 2027
in 261 days
For the period to 30 Sep 2026
CT600 due
30 Sep 2027
in 353 days
Period 1 Oct 2025 to 30 Sep 2026
Corporation tax payment
1 Jul 2027
in 262 days
9 months and 1 day after the period end
Confirmation statement
4 Sep 2027
in 327 days
Last made up to 21 Aug 2026

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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 £87K (+30.1%) on the year before, to £377K.
  • Net assets rose in 6 of 8 year-on-year comparisons on record.
  • Current assets of £979K against £666K owed within a year: 1.5 times cover.
  • 15 employees on average, up from 13 the year before.
  • Balance sheets on record for 9 years, 2017 to 2025.

Net assets by year

Net assets at each year end, 2017 to 2025£0£200K31 May 2017: net assets £50K£50K201731 May 2018: net assets £90K£90K201831 May 2019: net assets £99K£99K201930 September 2020: net assets £79K£79K202030 September 2021: net assets £307K£307K202130 September 2022: net assets £344K£344K202230 September 2023: net assets £244K£244K202330 September 2024: net assets £290K£290K202430 September 2025: net assets £377K£377K2025
Net assets at each year end, 2017 to 2025£0£200K31 May 2017: net assets £50K£50K'1731 May 2018: net assets £90K£90K'1831 May 2019: net assets £99K£99K'1930 September 2020: net assets £79K£79K'2030 September 2021: net assets £307K£307K'2130 September 2022: net assets £344K£344K'2230 September 2023: net assets £244K£244K'2330 September 2024: net assets £290K£290K'2430 September 2025: net assets £377K£377K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Sep 2025£377K£208K£979K£666K15
30 Sep 2024£290K£233K£589K£337K13
30 Sep 2023£244K£262K£652K£435K14
30 Sep 2022£344K£150K£702K£368K15
30 Sep 2021£307K£228K£537K£224K10
30 Sep 2020£79K£67K£252K£156K7
31 May 2019£99K£65K£148K£87K6
31 May 2018£90K£125K£57K7
31 May 2017£50K£130K£79K

Where Astech Environmental Limited is registered

Astech Environmental Limited's registered office on a map of the UK

The registered office is in Wimborne (BH21), in the Dorset local authority area, South West. Show BH21 1JS on a map.

Other trade companies in BH21

Shared registered office

72 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.

What happens if Astech Environmental 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 30 June 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jul 2027 to 31 Jul 2027£150
1 to 3 months late1 Aug 2027 to 30 Sep 2027£375
3 to 6 months late1 Oct 2027 to 31 Dec 2027£750
More than 6 months lateFrom 1 Jan 2028£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Oct 2027£200
3 months late30 Dec 2027another £200
6 months late30 Mar 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Sep 2028another 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
10339197
Status
Active
Company type
Private limited company
Incorporated
22 August 2016 (10 years ago)
Registered office
Faulkner House, 31 West Street, Wimborne, Dorset, BH21 1JS
Nature of business
Other specialised construction activities n.e.c. (SIC 43999)
Other business support service activities n.e.c. (SIC 82990)
Year end
30 September (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
30 September 2025
Last confirmation statement
21 August 2026

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 Wimborne

Other active specialist construction companies registered in Wimborne.

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Frequently asked questions

When are Astech Environmental Limited's accounts due?

Astech Environmental Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.

When is Astech Environmental Limited's CT600 due?

The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.

Is Astech Environmental Limited still trading?

Astech Environmental Limited 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 Astech Environmental Limited do?

Astech Environmental Limited is registered under Other specialised construction activities n.e.c. (SIC 43999); Other business support service activities n.e.c. (SIC 82990).

How old is Astech Environmental Limited?

Astech Environmental Limited was incorporated on 22 August 2016, 10 years ago.

What is the penalty if Astech Environmental 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 Astech Environmental Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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