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Zehnder Air Filters Maintenance

The Common Services Agency (more commonly known as Public Services Delivery Scotland) (PSD Scotland)

This public procurement record has 2 releases in its history.

Award

10 Aug 2026 at 12:36

Award Notice
Award

10 Jun 2026 at 14:49

Award Notice
Summary of the contracting process

Public Services Delivery Scotland (PSD Scotland) procured maintenance of Zehnder air-handling units and their air filters across the PSD Scotland estate in Scotland. The service covers repair and maintenance of building installations, specifically Zehnder units using the patented Flimmer filter. Zehnder exclusively manufactures and supplies this filter, so the requirement concerns specialist maintenance of proprietary equipment rather than general building-services maintenance. The buyer is The Common Services Agency, commonly known as PSD Scotland, based in Edinburgh. The supplier named in the outcome is Zehnder Group UK Ltd, a large UK company. The requirement is relevant to businesses with experience maintaining Zehnder air-handling equipment, or to firms with the legal rights, technical capability and manufacturer authorisation needed to work on proprietary Zehnder systems.

The procurement is complete and was awarded through a limited procedure without prior publication of a competition, using a direct award under section 14 of the Procurement Reform (Scotland) Act 2014. Zehnder Group UK Ltd is recorded as the successful supplier, with two active award and contract records each valued at £77,580. Both contracts were signed on 1 May 2026; the published data does not provide a contract end date or award date. One lot was used, and it is marked cancelled even though active awards and contracts are recorded against it. The stated justification was the absence of competition for technical and exclusive-rights reasons: third parties could not lawfully or technically provide the required service. The recorded evaluation split was 50% quality and 50% price, and one electronic bid was recorded.

This outcome shows a tightly constrained requirement for maintenance of a buyer’s installed Zehnder equipment, rather than an open market for interchangeable air-filter servicing. A credible competitor for comparable work would need demonstrable competence in maintaining Zehnder units and Flimmer-filter systems, together with access to genuine replacement filters and the manufacturer’s technical support or authorisation. The procurement also indicates that PSD Scotland has an established need for planned maintenance across its estate and uses direct award where proprietary technology and exclusive rights prevent lawful third-party delivery. Businesses without Zehnder-specific capability or a recognised route to the manufacturer are unlikely to be competitive. Specialist ventilation, indoor-air-quality or building-maintenance firms may be relevant only where they can evidence equivalent technical expertise and the necessary rights to service these systems.

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Notice Information

Notice Title

Zehnder Air Filters Maintenance

Notice Description

This is a direct award to Zehnder CAS (Clean Air Solutions) to carry out maintenance of the Zehnder units within the PSD Scotland estate.

Lot Information

Lot 1

The contract is awarded by direct award under section 14 of the Procurement Reform (Scotland) Act 2014. The maintenance service relates to Zehnder air filters containing the patented 'Flimmer' filter, which is exclusively manufactured and supplied by Zehnder. The patented nature of the filter means that no third-party supplier can lawfully or technically provide the required maintenance service. As competition is genuinely absent for technical and exclusive rights reasons, and no reasonable alternative exists, a competitive procurement exercise would not deliver competition.

Procurement Information

The contract is awarded by direct award under section 14 of the Procurement Reform (Scotland) Act 2014. The maintenance service relates to Zehnder air filters containing the patented 'Flimmer' filter, which is exclusively manufactured and supplied by Zehnder. The patented nature of the filter means that no third-party supplier can lawfully or technically provide the required maintenance service. As competition is genuinely absent for technical and exclusive rights reasons, and no reasonable alternative exists, a competitive procurement exercise would not deliver competition.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06b1f9
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/075697-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
Award Notice
Procurement Type
Framework
Procurement Category
Services
Procurement Method
Limited
Procurement Method Details
Award procedure without prior publication of a call for competition
Tender Suitability
Not specified
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

50 - Repair and maintenance services

CPV Codes

50700000 - Repair and maintenance services of building installations

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
£77,580 Under £100K

Notice Dates

Publication Date
10 Aug 20262 weeks ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
1 May 20263 months ago
Contract Period
Not specified - Not specified
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Cancelled
Awards Status
Active
Contracts Status
Active

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
The Common Services Agency (more commonly known as Public Services Delivery Scotland) (PSD Scotland)
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
EDINBURGH
Postcode
EH12 9EB
Postcode Area
Edinburgh
Country
Scotland
Major Region (ITL 1)
TLM Scotland
Basic Region (ITL 2)
TLM1 East Central Scotland
Small Region (ITL 3)
TLM13 City of Edinburgh
Delivery Location
TLM Scotland
Local Authority
City of Edinburgh
Electoral Ward
Drum Brae/Gyle
Westminster Constituency
Edinburgh South West

Supplier Information

Number of Suppliers
1
Supplier Name

Zehnder Group UK Ltd

Further Information

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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