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NB

Niblock Building Contractors

London
SME

Niblock Building Contractors specializes in refurbishment, maintenance, and renovation projects for both public and private sector clients. They offer a complete refurbishment and modernization service.

niblock.co.uk ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£36.3m
Live
10
Buyers
14
12m
—
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities1
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts10 / 25
  • Top buyers14
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — Niblock Building ContractorsUpdated 06 Jul 2026

At a glance · for buyers and watchdogs

Niblock Building Contractors has won £36.3m across 14 public-sector buyers, with 10 live contracts. No active Companies House risk flags.

Why: top buyer South East Consortium at 48% · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
10 of 25Live contracts
48%Top-buyer concentration
—Category exposure
0Contract modifications
If you're a buyer:CapabilitiesReferencesKPIComplianceWatchdog?FlagsModificationsConcentrationNews

Social value

Commitments mapped to the Government Social Value Model themes.

⚑ Self-reported
—

No social-value commitments yet

Jobs, skills, environmental, inequality and community commitments appear here once a claimed supplier attributes them to awarded contracts, or once we detect them on the supplier’s website.

ESG & policies vault · 0/5

Key governance & sustainability policies. Published documents link out; missing ones are greyed.

↔ Cross-checked
Net-zero planNot provided✓
Modern slavery statementNot provided✓
EDI policyNot provided✓
Anti-briberyNot provided✓
Data protectionNot provided✓

Capabilities

What this supplier does, where they sit, who they sell to.

◐ From website & notices
Services · 2
Refurbishment and RenovationComplete refurbishment and modernisation service for public and private sector clients. ↗
MaintenanceMaintenance services for various types of buildings.
Frameworks & DPS · 1 from notices
  • Principal Contractor - Principal contractor - Education (20% VAT)London Borough of Haringey · £536k

Extracted automatically from niblock.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

Case studies · 1

Delivery stories from the supplier’s website. Clients are not yet cross-checked against award records.

◐ From supplier website
Ockford RidgePhased major refurbishment programme to provide improved interior layouts and external fabric repairs. ↗

Extracted automatically from niblock.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

Buyer references

Named public-sector contacts who have agreed to act as a reference.

✓ Confirmed by buyer
—

No buyer references yet

Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.

Accreditations & memberships

Independently issued. Verification dates cross-checked against issuer registers.

↔ Cross-checked
—

No accreditations recorded

B-Corp, ISO, Cyber Essentials, Living Wage and similar credentials appear here once added by a claimed supplier and cross-checked against the issuing register.

KPI performance

Delivery, budget and satisfaction scores reported quarterly by buyers.

✓ Verified
84

No verified KPI scores yet

Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.

Contracts · 10 live · 15 historic

Pulled from Contracts Finder & Find a Tender. Most recent first.

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
Chaucer Garden Stabilisation and Structural Repairs
London Borough of Sutton4500000002 Jun 2025£300k12 moClosed
Electrical Contractor Works
GOLDING HOMES LIMITED4531000006 Nov 2024£5.0m5 yrsLive
Procurement for Housing: Planned Works Framework
Procurement for Housing4545310001 Aug 2024£3.6m4 yrsLive
Refurbishment Works at 1-2 Bourne Place
London Borough of Hounslow4521100031 May 2024£515k6 moClosed
South East Consortium Internal & External Works Framework
South East Consortium4545310024 Oct 2023£14.7m4 yrsLive
Procurement For Housing - Compliance Solutions Framework
Inprova Group5032420019 Oct 2023£2.2m4 yrsLive
Principal Contractor - Principal contractor - Education (20% VAT)
London Borough of Haringey4500000002 Nov 2022£536k6 moClosed
LED Lighting, Fixtures and Fittings - Supply and Install _Y19018
Ken County Council (t/a LASER)3150000017 May 2020£3.3m4 yrsClosed
Fusion21 Energy Efficiency Framework
Fusion21 Members Consortium4532100019 Feb 2020£952k4 yrsClosed
Fusion21 Building & Asset Improvement Works Framework
Fusion21 Members Consortium4500000025 Nov 2019£184k4 yrsClosed
Total live value £25.5m · mean award £1.5m1–10 of 25

Top buyers · 14 buyers · top 3 = 71%

Share of awarded value. Concentration fires above 40% for any single buyer.

✓ From notices
1
South East Consortium
5 contracts
48%
since 2015
2
GOLDING HOMES LIMITED
2 contracts
14%
since 2024
3
Procurement for Housing
2 contracts
10%
since 2024
4
Ken County Council (t/a LASER)
1 contract
9%
since 2020
5
Inprova Group
2 contracts
6%
since 2023
6
CIRCLE HOUSING ASSET DESIGN LIMITED
1 contract
4%
since 2015
7
Fusion21 Members Consortium
2 contracts
3%
since 2019
8
SE Shared Services
3 contracts
2%
since 2018
9
London Borough of Haringey
1 contract
1%
since 2023
10
London Borough of Hounslow
1 contract
1%
since 2024

Geography

Distribution of awarded value by buyer region.

✓ From notices
UK · schematic only
South East10 contracts
75%
North West6 contracts
23%
London4 contracts
2%
Region resolved for 85% of awarded value (by buyer postcode); the remainder lacks a usable address.

Peers

Suppliers with overlapping CPVs & buyers (last 24m). Niblock Building Contractors highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
LP
LOVELL PARTNERSHIPS LIMITED
No£140.0m1
KC
Kier Construction
Yes£35.4m2
WD
Willmott Dixon Construction Limited
No£28.1m2
CC
Clegg Construction Limited
No£18.8m2
DG
Dodd Group
No£18.1m1
NB
Niblock Building Contractors
Yes——
Compare peers →

Red flags · 0 active

Automated scan of Companies House status, charges and insolvency records.

✓ Verified
✓ Clean. No active risk signals from Companies House status, charges or insolvency records.

Compliance scorecard

Derived from Companies House filings — not a full supplier-assurance check.

↔ Cross-checked
Trading status
Active
Live at Companies House
Annual accounts
Due in -11d
Next due 30 Jun 2026
Confirmation statement
Up to date
Next due 27 Jan 2027
Outstanding charges
0
No charges registered
Insolvency history
None
No insolvency cases registered
Certifications (ISO, Cyber Essentials, Living Wage, B-Corp, modern-slavery) are supplier self-reported and appear once a claimed profile adds them.

Modifications

Variations to awarded contracts logged under Procurement Act 2023 s.74.

✓ From notices
±

No modifications recorded

No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.

News mentions

UK trade press & nationals, matched to this supplier.

◰

No news mentions found

We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.

Companies House

Live sync — registered details, directors, PSC and SIC codes.

✓ Live sync

Registered details

Company no.
05014243
Status
Active
Type
Private limited
Incorporated
13 Jan 2004
Reg. office
93 Gloucester Place, London, W1U 6JQ
SIC codes
42990 · 43999
Last accounts
30 Sept 2024
Next accounts due
30 Jun 2026

Directors & PSC

  • HARTLAND, Kevin Robert John — director
    Appointed 01 Jun 2023
  • WATERS, Martin Oliver — director
    Appointed 13 Jan 2004
  • Mr Martin Oliver Waters — person with significant control
    ownership of shares 75 to 100 percent

Financial

Filed accounts from Companies House.

↔ From Cos House
£

No financial filings on record

Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.

Org tree

Group structure and ownership.

↔ From Cos House
NIBLOCK BUILDING CONTRACTORS LIMITED
05014243 · this company

Independent. No parent company or subsidiaries recorded at Companies House for this entity.