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Construction agreement for renovation and modification of HCl and NaOCl installation Productiebedrijf Jan Lagrand Heemskerk

PWN · Open · 2 lots · 418831
Type
Works
45350000 · Mechanical installatio
Estimated value
€ 1,50M
estimated
To deadline
-17d
May 29, 2026 · 12:00
Knock-outs
0
exclusion grounds
Award basis
Best price-quality ratio
Promising — consider biddingconfidence high

Replacement of the HCl and NaOCl installations in Heemskerk, divided into a building lot and a mechanical/electrotechnical lot.

Works · Open · National procedure · SME-friendly

SME-friendly
Contracting authority
PWN
Contract type
Works
Open
Estimated value
€1,500,000
estimated value
Submission deadline
May 29, 2026
12:00
Scope
National
National procedure
Lots
2
2 lots
Main CPV code
45350000
Mechanical installations
Location
Netherlands
CharacteristicsCPV 45WorksSME-friendlyChemical storageDosing installationVKV installation

01What is being requested

The assignment concerns the replacement of the Hydrochloric acid (HCl) and Sodium hypochlorite (NaOCl) storage and dosing installation at the PWN location Jan Lagrand in Heemskerk. The works are divided into two lots: Lot 1 (Building works) and Lot 2 (Mechanical and electrotechnical works). The scope includes engineering, supply, installation, testing, and commissioning.

National public procurement of the construction agreements for the execution of building, mechanical, and electrotechnical works for the project ‘PWN.01402 Renovatie en modificatie HCl- en NaOCl installatie Productiebedrijf Jan Lagrand Heemskerk’.

45350000€ 1,50MWorks
1Lot 1: Building works€1
2Lot 2: Mechanical and electrotechnical works€1

02Breakdown by lot

Lot 1: Building works€1
Lot 2: Mechanical and electrotechnical works€1

03Strategic insight

“
Strategic insight · AI analysis
Ensure strong coordination between the different disciplines, as the interfaces with the building contractor and process automation (PA) are essential. During engineering, focus on an accurate as-built check on-site to prevent deviations from the design. Strictly verify whether all selected materials comply with drinking water requirements and the required certifications.
Read automatically from the tender documents using AI. Always verify against the original documents.

04Points of attention

Important · 6
Coordination obligation with the contractor of the building/civil engineering lot.Important
Continuity of the purification process must be guaranteed at all times; temporary facilities are part of the work.Important
Engineering: Contractor must check the design and detail it into an execution design (UO).Important
As-built: The responsibility for establishing the as-built situation on-site lies with the contractor.Important
Certification: Materials in contact with drinking water must be provided with a KIWA Watermark and installation certificates in accordance with BRL SIKB 7800.Important
Risks: Risks for theft and damage lie with the contractor until completion.Important

05Can I take part?

Financial — Financial ratios of the company (via attachment Financiële kengetallen onderneming-v2.0.xlsx).
Technical — Reference projects (via attachments Perceel 1 - Formulier referentieproject and Perceel 2 - Formulier 1 van 2/2 van 2 referentieproject).

06Value in context

€1,500,000

07Likely competitors

#Likely bidderFitWins
1KWS Infra B.V.SME9892×
2Heijmans Infra B.V.SME9865×
3Dura Vermeer Infra Regionale Projecten BVSME9758×
4BAM Bouw en Techniek bvSME9734×
5Croonwolter&dros B.V.SME9726×
6BAM Infra B.V.SME9677×

08Tender documents

PWN Gedragscode voor leveranciers - dec 2022.pdfpdfMay 8, 2026 · 519 KB
UEA PWN.pdfpdfMay 8, 2026 · 92 KB
Gunningsfase.pdfpdfMay 8, 2026 · 30 KB
Inschrijfstaat PWN.01402 Perceel 2.xlsxxlsxMay 8, 2026 · 24 KB
Aannemingsovereenkomst Perceel 2 PWN.01402.pdfpdfMay 8, 2026 · 142 KB
Offerteaanvraag.pdfpdfMay 8, 2026 · 27 KB
Offerteleidraad renovatie en modificatie HCl- en NaOCl-installatie psHk.pdfpdfMay 8, 2026 · 452 KB
Perceel 1 - Formulier referentieproject.docxdocxMay 8, 2026 · 36 KB
Bedrijfsgegevens.pdfpdfMay 8, 2026 · 24 KB
Perceel 2 - Formulier 2 van 2 referentieproject.docxdocxMay 8, 2026 · 37 KB
Inschrijfstaat PWN.01402 Perceel 1.xlsxxlsxMay 8, 2026 · 24 KB
Perceel 2 - Formulier 1 van 2 referentieproject.docxdocxMay 8, 2026 · 40 KB

09Legal themes that may be relevant here

10Estimated value versus the market

p25
€ 1,4 mln
median
€ 3,6 mln
p75
€ 9,1 mln
€ 1,5 mln

Gegunde waarden in CPV 45 · werken n=3159