- Companies
- Installers
- Brentford
- London Seamless Flat Roofing Ltd.
London Seamless Flat Roofing Ltd.
- Company number
- 05562810
- Incorporated
- 13 Sep 200521 years trading
- Registered office
- The Mille, 1000 Great West Road, Brentford, TW8 9DW
- Nature of business
- Other construction installation; Other building completion and finishing; Roofing activities
London Seamless Flat Roofing Ltd. is a 21-year-old private limited company registered in Brentford, company number 05562810, one of 8 installation companies (insulation, lifts, shutters and similar) in Brentford. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £7,874 (+1.7%) on the year before, to £485K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £743K against £320K owed within a year: 2.3 times cover.
- 7 employees on average, down from 8 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £485K | £357K | £743K | £320K | 7 |
| 30 Nov 2024 | £477K | £299K | £747K | £311K | 8 |
| 30 Nov 2023 | £470K | £301K | £742K | £281K | 8 |
| 30 Nov 2022 | £270K | £85K | £706K | £235K | 10 |
| 30 Nov 2021 | £40K | £213K | £461K | £204K | 11 |
| 30 Nov 2020 | £229K | £245K | £617K | £270K | 9 |
| 30 Nov 2019 | £70K | £48K | £229K | £130K | 12 |
| 30 Nov 2018 | £60K | £97K | £298K | £213K | 15 |
| 30 Nov 2017 | -£133K | £122K | £146K | £380K | |
| 30 Nov 2016 | -£138K | £66K | £110K | £263K |
Public contracts won
London Seamless Flat Roofing Ltd. has one public sector contract award on record; the ones with their own published value total £682K (2026). 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.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Housing Gateway Ltd | Brickfield House Roof | £682K | 28 Jul 2026 |
Where London Seamless Flat Roofing Ltd. is registered
The registered office is in Brentford (TW8), in the Hounslow local authority area, London. Show TW8 9DW on a map.
Other trade companies in TW8
- Loft Algerie LtdMotor traders
- Redline Roofing and Construction LtdBuilders
- Skyracer LtdMotor traders
- Trueccraft Construction LimitedBuilders
- X2 Performance LtdMechanics and garages
- Velox Property LimitedBuilders
- Fastway Projects LtdBuilders
- Vertex Build Pro LtdBuilders
Also registered at this address
6 other companies use the same registered office as London Seamless Flat Roofing Ltd..
- Bse Construction LtdBuilders
- Elite Constructions (UK) LimitedSpecialist contractors
- Green Heat Services LimitedPlumbers and heating engineers
- JGSK LimitedSpecialist contractors
- Prudential Developments LtdProperty developers
- SF Cars LtdMotor traders
What happens if London Seamless Flat Roofing 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 05562810
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 September 2005 (21 years ago)
- Registered office
- The Mille, 1000 Great West Road, Brentford, TW8 9DW
- Nature of business
- Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390)
Roofing activities (SIC 43910) - Year end
- 30 November (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 14 February 2026
- Previous names
- Raffi Construction Services Ltd (until 12 Dec 2009)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Brentford
Other active installation companies (insulation, lifts, shutters and similar) registered in Brentford.
- MW Europe Construction Management Ltd2019
- PHS Facilities Services Limited1993
- Pro-Fit Shopfront & Shutters London Ltd2019
- RV Building Contractors Ltd2012
- Bullseye Interiors Ltd2016
- Chez Building Services Limited2016
- Custom Option Investments Ltd2023
All installation companies (insulation, lifts, shutters and similar) in Brentford · All trades in Brentford · Installers across the UK
Frequently asked questions
When are London Seamless Flat Roofing Ltd.'s accounts due?
London Seamless Flat Roofing Ltd.'s next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is London Seamless Flat Roofing Ltd.'s CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is London Seamless Flat Roofing Ltd. still trading?
London Seamless Flat Roofing 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 London Seamless Flat Roofing Ltd. do?
London Seamless Flat Roofing Ltd. is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390); Roofing activities (SIC 43910).
How old is London Seamless Flat Roofing Ltd.?
London Seamless Flat Roofing Ltd. was incorporated on 13 September 2005, 21 years ago.
Has London Seamless Flat Roofing Ltd. won public sector contracts?
Yes. London Seamless Flat Roofing Ltd. has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £682K), most recently from Housing Gateway Ltd.
What is the penalty if London Seamless Flat Roofing 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 London Seamless Flat Roofing 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.