- Companies
- Plumbers and heating engineers
- Northolt
- NK Quality Builders Ltd
NK Quality Builders Ltd
- Company number
- 13901621
- Incorporated
- 8 Feb 20224 years trading
- Registered office
- 84 Kingshill Avenue, Northolt, Middlesex, UB5 6LQ
- Nature of business
- Plumbing, heat and air-conditioning installation; Joinery installation; Other building completion and finishing; Roofing activities
NK Quality Builders Ltd is a 4-year-old private limited company registered in Northolt, company number 13901621, one of 36 plumbing and heating companies in Northolt. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 down £3,178 (-99.5%) on the year before, to £16.
- Current assets of £3,226 against £7,414 owed within a year: 0.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £16 | £3,226 | £7,414 | 1 | |
| 28 Feb 2024 | £3,194 | £651 | £8,791 | 1 | |
| 28 Feb 2023 | £3,529 | £1,593 | £11K | 1 |
Where NK Quality Builders Ltd is registered
The registered office is in Northolt (UB5), in the Ealing local authority area, London. Show UB5 6LQ on a map.
Other trade companies in UB5
- Byvolt Electrical Services LtdElectricians
- Harmony Buildworks LtdSpecialist contractors
- RBS Homes LtdFinishing trades
- Tda Construction LimitedBuilders
- Ivaan Roofing Solutions LtdRoofers
- Jacob Fleet Services LtdMotor traders
- Upliftcarsltd LtdMotor traders
- Caraze LtdMotor traders
What happens if NK Quality Builders 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13901621
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 February 2022 (4 years ago)
- Registered office
- 84 Kingshill Avenue, Northolt, Middlesex, UB5 6LQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Joinery installation (SIC 43320)
Other building completion and finishing (SIC 43390)
Roofing activities (SIC 43910) - Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 20 March 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Northolt
Other active plumbing and heating companies registered in Northolt.
- Poonch Ltd2025
- Power Flush Doctor Ltd2020
- Prestige Home Touch Ltd2025
- Rojcold Ltd2023
- SK Heating Limited2019
- T&M Plumbers Limited2016
- T.H.A. Maintenance Ltd2023
- Tap & Torch Plumbing Ltd2025
All plumbing and heating companies in Northolt · All trades in Northolt · Plumbers and heating engineers across the UK
Frequently asked questions
When are NK Quality Builders Ltd's accounts due?
NK Quality Builders Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is NK Quality Builders Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is NK Quality Builders Ltd still trading?
NK Quality Builders 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 NK Quality Builders Ltd do?
NK Quality Builders Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Joinery installation (SIC 43320); Other building completion and finishing (SIC 43390); Roofing activities (SIC 43910).
How old is NK Quality Builders Ltd?
NK Quality Builders Ltd was incorporated on 8 February 2022, 4 years ago.
What is the penalty if NK Quality Builders 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 NK Quality Builders 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.