- Company number
- 16124105
- Incorporated
- 9 Dec 20241 year trading
- Registered office
- Unit C, 918-920 Chesterfield Road, Sheffield, South Yorkshire, S8 0SH
- Nature of business
- Roofing activities
Seamless Waterproofing Solutions Ltd is a 1-year-old private limited company registered in Sheffield, company number 16124105, one of 92 roofing companies in Sheffield. Its next accounts are due at Companies House on 31 January 2028, and the CT600 for the period to 30 April 2027 is due at HMRC on 30 April 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 30 April 2026, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Seamless Waterproofing Solutions Ltd is registered
The registered office is in Sheffield (S8), in the Sheffield local authority area, Yorkshire and The Humber. Show S8 0SH on a map.
Other trade companies in S8
- TWS Maintenance Division LtdInstallers
- True North Campers LimitedMotor traders
- Cleangoo LtdCleaning companies
- Made Spaces LtdBuilders
- Hawthorn Holt Properties LimitedProperty developers
- Aml Maintenance LimitedFacilities management
- Akinkobim LtdCleaning companies
- Oxo Electrical and Building Services LimitedElectricians
Also registered at this address
1 other company uses the same registered office as Seamless Waterproofing Solutions Ltd.
- Made Spaces LtdBuilders
What happens if Seamless Waterproofing Solutions 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 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2028 to 29 Feb 2028 | £150 |
| 1 to 3 months late | 1 Mar 2028 to 30 Apr 2028 | £375 |
| 3 to 6 months late | 1 May 2028 to 31 Jul 2028 | £750 |
| More than 6 months late | From 1 Aug 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
- 16124105
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 December 2024 (1 year ago)
- Registered office
- Unit C, 918-920 Chesterfield Road, Sheffield, South Yorkshire, S8 0SH
- Nature of business
- Roofing activities (SIC 43910)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2026
- Last confirmation statement
- 28 May 2025
Filing notes for roofing companies
Roofing companies commonly work under CIS and run vans and access equipment, so CIS deductions and capital allowances are the two things to get right.
Similar companies in Sheffield
Other active roofing companies registered in Sheffield.
- Sheffclad Ltd2025
- Sheffield Roofline Limited2021
- Shutt Site Services Limited2015
- Skyguard Roofing Solutions Ltd2024
- Solarfit Ltd2023
- Sothall Roofing Specialists Limited2004
- South Yorkshire Roofing Repairs Limited2024
- SS Cladding Ltd2025
All roofing companies in Sheffield · All trades in Sheffield · Roofers across the UK
Frequently asked questions
When are Seamless Waterproofing Solutions Ltd's accounts due?
Seamless Waterproofing Solutions Ltd's next accounts are due at Companies House by 31 January 2028 (in 475 days), covering the period to 30 April 2027.
When is Seamless Waterproofing Solutions Ltd's CT600 due?
The CT600 for the period to 30 April 2027 is due at HMRC by 30 April 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2028.
Is Seamless Waterproofing Solutions Ltd still trading?
Seamless Waterproofing Solutions Ltd 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 Seamless Waterproofing Solutions Ltd do?
Seamless Waterproofing Solutions Ltd is registered under Roofing activities (SIC 43910).
How old is Seamless Waterproofing Solutions Ltd?
Seamless Waterproofing Solutions Ltd was incorporated on 9 December 2024, 1 year ago.
What is the penalty if Seamless Waterproofing Solutions 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 Seamless Waterproofing Solutions Ltd 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.