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- Prolasma Limited
Company profile · Specialist contractors
Prolasma Limited
Prolasma Limited is a 2-year-old private limited company registered in Boston, company number 15944437, one of 22 specialist construction companies in Boston. 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.
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Financial snapshot, 2025
From the balance sheet at 30 September 2025, as filed at Companies House.
Where Prolasma Limited is registered
The registered office is in Boston (PE22), in the Boston local authority area, East Midlands. Show PE22 0HZ on a map.
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- GD Flat Roofing LtdRoofers
- Nature and Environmental LtdProperty developers
- Priyo Wholesale UK LtdSpecialist contractors
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- Mechanical Electrical Services UK LtdElectricians
- GG Engineering LtdMechanics and garages
- Lincs Plant LimitedMachinery repair and installation
Also registered at this address
2 other companies use the same registered office as Prolasma Limited.
- Linclnshire LtdCleaning companies
- You Name IT - We Can Clean IT LtdCleaning companies
What happens if Prolasma 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 House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 15944437
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 September 2024 (2 years ago)
- Registered office
- 13 Girls School Lane, Butterwick, Boston, PE22 0HZ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 8 September 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 Boston
Other active specialist construction companies registered in Boston.
- Sekyd Property Services Ltd2024
- A Marsh Brickwork Limited2024
- Atc Installations Limited2007
- Aztec Drives Limited2005
- B & H Excavators Limited2003
- Brothers C.O Solutions Ltd2025
- Bull Property Solutions Ltd2026
- Chris McGowan Limited2012
All specialist construction companies in Boston · All trades in Boston · Specialist contractors across the UK
Frequently asked questions
When are Prolasma Limited's accounts due?
Prolasma 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 Prolasma 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 Prolasma Limited still trading?
Prolasma 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 Prolasma Limited do?
Prolasma Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Prolasma Limited?
Prolasma Limited was incorporated on 9 September 2024, 2 years ago.
What is the penalty if Prolasma 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 Prolasma Limited 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.