- Companies
- Specialist contractors
- Specialist Structural Waterproofing Ltd
Specialist Structural Waterproofing Ltd
- Company number
- 10746232
- Incorporated
- 28 Apr 20179 years trading
- Registered office
- 1 Craftsman Square, Temple Farm Ind Estate, Essex, Southend on Sea, SS2 5RH
- Nature of business
- Other specialised construction activities n.e.c.
Specialist Structural Waterproofing Ltd is a 9-year-old private limited company registered in Essex, Southend on Sea, company number 10746232, one of the UK's specialist construction companies. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £436K (+815.8%) on the year before, to £490K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £934K against £426K owed within a year: 2.2 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £490K | £934K | £426K | 1 | |
| 30 Apr 2024 | £53K | £434K | £359K | 0 | |
| 30 Apr 2023 | £23K | £180K | £144K | 0 | |
| 30 Apr 2022 | £6,433 | £121K | £109K | 0 | |
| 30 Apr 2021 | -£2,046 | £56K | £51K | 0 | |
| 30 Apr 2020 | -£2,396 | £12K | £13K | 0 | |
| 30 Apr 2019 | -£503 | ||||
| 30 Apr 2018 | -£323 |
Public contracts won
Specialist Structural Waterproofing Ltd has 2 public sector contract awards on record; the ones with their own published value total £138K, from 2021 to 2022. Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Southend-on-Sea Borough Council2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Southend-on-Sea Borough Council | Project 1769 - Fairways Pitch Roof Junior Block | £50K | 8 Dec 2022 |
| Southend-on-Sea Borough Council | SBC Prj 1741 - Pier walkway waterproofing and walkway coating | £88K | 10 Dec 2021 |
Where Specialist Structural Waterproofing Ltd is registered
The registered office is in Essex, Southend on Sea (SS2), in the Southend-on-Sea local authority area, East of England. Show SS2 5RH on a map.
Other trade companies in SS2
- Auto Point Services LtdMechanics and garages
- Lews Electrical LtdElectricians
- Joycarparts LtdMotor traders
- Waterfield Construction LtdBuilders
- Eddie's Vehicle Detailing LtdMechanics and garages
- Attac Projects An Trade Management LtdInstallers
- Southend Renovations LtdBuilders
- Boiro Projects LtdSpecialist contractors
Shared registered office
74 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 Specialist Structural Waterproofing 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 10746232
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 April 2017 (9 years ago)
- Registered office
- 1 Craftsman Square, Temple Farm Ind Estate, Essex, Southend on Sea, SS2 5RH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 1 May 2026
- Previous names
- LW Consulting Ltd (until 16 May 2018)
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
Other active specialist construction companies.
Frequently asked questions
When are Specialist Structural Waterproofing Ltd's accounts due?
Specialist Structural Waterproofing Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Specialist Structural Waterproofing Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Specialist Structural Waterproofing Ltd still trading?
Specialist Structural Waterproofing Ltd 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 Specialist Structural Waterproofing Ltd do?
Specialist Structural Waterproofing Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Specialist Structural Waterproofing Ltd?
Specialist Structural Waterproofing Ltd was incorporated on 28 April 2017, 9 years ago.
Has Specialist Structural Waterproofing Ltd won public sector contracts?
Yes. Specialist Structural Waterproofing Ltd has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £138K), most recently from Southend-on-Sea Borough Council.
What is the penalty if Specialist Structural Waterproofing 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 Specialist Structural Waterproofing Ltd 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.