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ALLERTON DAMP-PROOFING LIMITED

Repair & maintenance · Sherburn In Elmet
Large

Allerton Damp-Proofing Limited specializes in damp proofing and related services, including rising damp, penetrating damp, mould removal, and timber preservation. They have been trusted experts in the field since 1983.

alldamp.co.uk ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£151.4m
Live
38
Buyers
22
12m
£5.5m
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities5
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts38 / 105
  • Top buyers22
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — ALLERTON DAMP-PROOFING LIMITEDUpdated 06 Jul 2026

At a glance · for buyers and watchdogs

ALLERTON DAMP-PROOFING LIMITED has won £151.4m across 22 public-sector buyers, with 38 live contracts. No active Companies House risk flags.

Why: top buyer Echelon Consultancy Ltd at 36% · 51% in Repair & maintenance · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
38 of 105Live contracts
36%Top-buyer concentration
51%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 · 12
Damp ProofingExpert treatments for damp issues. ↗Rising DampTreatment for rising damp problems. ↗Penetrating DampSolutions for penetrating damp issues. ↗Mould RemovalRemoval of mould caused by damp. ↗Basement ConversionConverting basements to usable spaces. ↗Wet Rot TreatmentTreatment for wet rot in timber. ↗Dry Rot TreatmentSolutions for dry rot issues. ↗Woodworm TreatmentTreatment for woodworm infestations. ↗Property SurveysSurveys to assess property conditions. ↗Carpentry & JoineryCarpentry services related to damp issues. ↗Damp ControlControl measures for damp problems. ↗Timber PreservationPreservation services for timber. ↗
Frameworks & DPS · 5 from notices
  • EN:Procure - Framework for Installation, Servicing, Maintenance and Repair Works (GEN4)EN Procure Ltd · £31.9m
  • Framework Agreement for Installation and Repair (North East, Yorkshire and Humberside)PROCURE PLUS HOLDINGS LIMITED · £18.8m
  • 19-021 - Damp Proof ServicesRotherham MBC · £1.2m
  • Damp, mould and condensation remedial works and associated repairsACIS Group Limited · £200k
  • Specialist Works FrameworkKirklees Council · £28k

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

Case studies

Delivery stories the supplier has published, with sector and outcome.

⚑ Self-reported
—

No case studies yet

Once a claimed supplier publishes delivery stories — the buyer, the sector, what was delivered and the outcome — they appear here.

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 · 38 live · 67 historic

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

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
SLH - Voids & Repairs
City of Doncaster Council5000000001 Jun 2026£2.6m2 yrsLive
Specialist Works Framework - Leeds Road, Bradley, Huddersfield
Kirklees Council4411221015 Jun 2026£30k6 moLive
Specialist Works Framework - Lot 2, Crest Hill Road, Brackenhall, Huddersfield
Kirklees Council0341900018 May 2026£37k3 moLive
Specialist Works Framework - Cambridge Road, Birstall
Kirklees Council4411221011 May 2026£37k2 moLive
Specialist Works Framework - Cedar Road, Chickenley, DEWSBURY
Kirklees Council4411221011 May 2026£25k2 moLive
Specialist Works Framework - Kirklands, new Mill, Holmfirth
Kirklees Council4411221027 Apr 2026£27k2 moClosed
Specialist Works Framework - Lot 2, High Close, Almondbury, Huddersfield
Kirklees Council0341900004 May 2026£28k3 moLive
Voids & Repairs Works for St Leger Homes of Doncaster on behalf of the City of Doncaster Council
City of Doncaster Council4500000001 May 2026£1.3m4 yrsLive
Specialist Works Framework. Lot 1,Smiths Avenue, Marsh
Kirklees Council4411221013 Apr 2026£37k2 moClosed
Specialist Works Framework - Cambridge Road, Birstall
Kirklees Council4411221015 Apr 2026£40k2 moClosed
Total live value £146.7m · mean award £1.4m1–10 of 105

Top buyers · 22 buyers · top 3 = 70%

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

✓ From notices
1
Echelon Consultancy Ltd
1 contract
36%
since 2023
2
EN Procure Ltd
2 contracts
21%
since 2024
3
Places for People Group Limited
2 contracts
13%
since 2025
4
PROCURE PLUS HOLDINGS LIMITED
2 contracts
12%
since 2024
5
PROSPER
2 contracts
6%
since 2025
6
City of Doncaster Council
5 contracts
5%
since 2023
7
City of Doncaster Council, Civic Office, Waterdale, Doncaster, DN1 3 BU
1 contract
2%
since 2024
8
Kirklees Council
72 contracts
2%
since 2017
9
Rotherham MBC
1 contract
1%
since 2019
10
St Leger Homes
1 contract
1%
since 2023

Category mix

CPV-division share of last-12m awarded value. Single-category exposure: 51%.

✓ From notices
Repair & maintenance50
51%
Construction work45
30%
Construction materials44
15%
Agricultural products03
4%

Geography

Distribution of awarded value by buyer region.

✓ From notices
UK · schematic only
Eastern1 contract
37%
Yorkshire85 contracts
30%
North West7 contracts
26%
North East7 contracts
7%
South East1 contract
0%
East Midlands1 contract
0%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). ALLERTON DAMP-PROOFING LIMITED highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
LP
LOVELL PARTNERSHIPS LIMITED
No£140.0m1
JS
John Sisk and Son Ltd
No£67.8m1
KC
Kier Construction
Yes£35.4m2
WD
Willmott Dixon Construction Limited
No£28.1m2
CC
Clegg Construction Limited
No£18.8m2
AD
ALLERTON DAMP-PROOFING LIMITED
No£5.5m—
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
Up to date
Last made up to 30 Sept 2025
Confirmation statement
Due in -1d
Next due 09 Jul 2026
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.
02023575
Status
Active
Type
Private limited
Incorporated
28 May 1986
Reg. office
Unit 1 Ashbrook Park, Lincoln Way, Sherburn In Elmet, LS25 6QX
SIC codes
43390
Last accounts
30 Sept 2025
Next accounts due
30 Jun 2027

Directors & PSC

  • BLACKBURN, Stuart Michael — director
  • BLACKBURN, Jordan — director
    Appointed 16 Oct 2015
  • BLACKBURN, Wesley — director
    Appointed 16 Oct 2015
  • BLACKBURN, Karen Julie — director
    Appointed 02 Aug 2004
  • Allerton Yorkshire Holdings Limited — person with significant control
    ownership of shares 75 to 100 percent · voting rights 75 to 100 percent · right to appoint and remove directors

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
ALLERTON DAMP-PROOFING LIMITED
02023575 · this company

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