- Companies
- Specialist contractors
- Dunmow
- Jy Damproofing Limited
Jy Damproofing Limited
- Company number
- 17170485
- Incorporated
- 20 Apr 2026
- Registered office
- Little Valley, Brick Kiln Lane, Dunmow, CM6 3QZ
- Nature of business
- Other specialised construction activities n.e.c.
Jy Damproofing Limited is a newly incorporated private limited company registered in Dunmow, company number 17170485, one of 23 specialist construction companies in Dunmow. Its next accounts are due at Companies House on 20 January 2028, and its first CT600 is due at HMRC on 19 April 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 Jy Damproofing Limited is registered
The registered office is in Dunmow (CM6), in the Uttlesford local authority area, East of England. Show CM6 3QZ on a map.
Other trade companies in CM6
- Sharpe Trees LtdLandscapers and gardeners
- Aston Cord (Southern) LimitedPlumbers and heating engineers
- Alhs Properties LimitedProperty developers
- Gibson & Co. Contracts LimitedElectricians
- Norson Tyres and Detailing LtdMechanics and garages
- Om Roofing and Building Contractors LtdBuilders
- Z T Auto LtdMotor traders
- Patsons Ac LtdPlumbers and heating engineers
What happens if Jy Damproofing 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 20 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Jan 2028 to 20 Feb 2028 | £150 |
| 1 to 3 months late | 21 Feb 2028 to 20 Apr 2028 | £375 |
| 3 to 6 months late | 21 Apr 2028 to 20 Jul 2028 | £750 |
| More than 6 months late | From 21 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 17170485
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 April 2026
- Registered office
- Little Valley, Brick Kiln Lane, Dunmow, CM6 3QZ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
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 Dunmow
Other active specialist construction companies registered in Dunmow.
- Leak Detection Europe Limited2014
- LL Walser Construction Limited2025
- Prospect Fire Ltd2020
- Pulse Irrigation Limited2001
- Quay Logistics Ltd2018
- Rigley Brothers Contracting Limited2024
- Solum Landscape Contractors Ltd2020
- TBS Design & Build Limited2025
All specialist construction companies in Dunmow · All trades in Dunmow · Specialist contractors across the UK
Frequently asked questions
When are Jy Damproofing Limited's accounts due?
Jy Damproofing Limited's next accounts are due at Companies House by 20 January 2028 (in 465 days), covering the period to 30 April 2027.
When is Jy Damproofing Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 19 April 2027, due by 19 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Jy Damproofing Limited still trading?
Jy Damproofing 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 Jy Damproofing Limited do?
Jy Damproofing Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Jy Damproofing Limited?
Jy Damproofing Limited was incorporated on 20 April 2026, less than a year ago.
What is the penalty if Jy Damproofing 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 Jy Damproofing 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.