- Companies
- Plumbers and heating engineers
- Letchworth Garden City
- DKH Underfloor Heating Consultants Ltd
DKH Underfloor Heating Consultants Ltd
- Company number
- 06258143
- Incorporated
- 24 May 200719 years trading
- Registered office
- 21 Kyrkby, Letchworth Garden City, Hertfordshire, SG6 2PV
- Nature of business
- Plumbing, heat and air-conditioning installation
DKH Underfloor Heating Consultants Ltd is a 19-year-old private limited company registered in Letchworth Garden City, company number 06258143, one of 20 plumbing and heating companies in Letchworth Garden City. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where DKH Underfloor Heating Consultants Ltd is registered
The registered office is in Letchworth Garden City (SG6), in the Central Bedfordshire local authority area, England. Show SG6 2PV on a map.
Other trade companies in SG6
- Combined Auto Services LimitedMotor traders
- G.O.A.L Energy Services LtdElectricians
- Bedmond Construction LtdProperty developers
- Barski Property Care LtdBuilders
- PK Construction and Stones LimitedBuilders
- McCormack Maintenance LtdCivil engineering
- Nitdas Cleaning Solution LtdCleaning companies
- Nbtotalproperty LtdLandscapers and gardeners
What happens if DKH Underfloor Heating Consultants 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 06258143
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 May 2007 (19 years ago)
- Registered office
- 21 Kyrkby, Letchworth Garden City, Hertfordshire, SG6 2PV
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 26 June 2026
- Previous names
- LGC Logistics Limited (until 20 May 2008)
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 Letchworth Garden City
Other active plumbing and heating companies registered in Letchworth Garden City.
- Emergency Plumbing Group 247 Limited2022
- Esa Plumbing & Heating Limited2024
- L B P Plumbing and Heating Limited2006
- Mto Ductwork Ltd2024
- SJC Plumbing & Heating Services Limited2019
- Taylored Plumbing Limited2006
- Treadaway Plumbing and Heating Limited2011
- Zen Cooling Limited2025
All plumbing and heating companies in Letchworth Garden City · All trades in Letchworth Garden City · Plumbers and heating engineers across the UK
Frequently asked questions
When are DKH Underfloor Heating Consultants Ltd's accounts due?
DKH Underfloor Heating Consultants Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is DKH Underfloor Heating Consultants Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is DKH Underfloor Heating Consultants Ltd still trading?
DKH Underfloor Heating Consultants 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 DKH Underfloor Heating Consultants Ltd do?
DKH Underfloor Heating Consultants Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is DKH Underfloor Heating Consultants Ltd?
DKH Underfloor Heating Consultants Ltd was incorporated on 24 May 2007, 19 years ago.
What is the penalty if DKH Underfloor Heating Consultants 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 DKH Underfloor Heating Consultants 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.