BidSonarBidSonar
ContractsGrantsOrganisationsSectors
BidSonarBidSonar·Built by Hypership
SourcesBrandPrivacyTermsCookies

BidSonar is an independent index of public-sector opportunities. We aggregate data from official sources and are not affiliated with any procurement body. Data is licensed under the Open Government Licence v3.0 and the EU TED reuse notice.

    ContractsSustainable Drainage Systems and Weather Monitoring Stations
    Open tender

    Sustainable Drainage Systems and Weather Monitoring Stations

    Westminster City Council is sourcing suppliers for sustainable drainage and weather monitoring stations with associated data management, visualization, and maintenance services.

    🇬🇧United Kingdom· LondonPublished 3 Sept 2026· 2 months agoviaFind a Tender

    Decision brief

    4 fields
    • Contract value
      Not disclosed
      Source did not declare a figure
    • Closing date
      Rolling
      No closing date published
    • Sector
      Environmental Services
      Browse related listings
    • Location
      🇬🇧United Kingdom
      London

    Lifecycle

    Open

    Open tender — no closing date published. Opened 2 months ago.

    3 September 2026
    Open tender · no closing date published

    Brief

    Westminster City Council is seeking information from the market about providing Sustainable Drainage Systems (SuDS) and weather monitoring stations. The scope includes: monitoring stations installation and operation, real-time data management and storage, data visualization and reporting tools, regular maintenance and technical support, and performance analysis services. This market engagement will inform the council's procurement strategy and detailed tender specification for managing urban drainage and weather data to support environmental management and flood prevention initiatives. Interested suppliers should have experience with drainage monitoring technology, weather station systems, data analytics platforms, and environmental reporting.

    Track record

    5 awards · 4 winners
    Open field

    No single supplier dominates the field.

    In environmental services, WESTMINSTER CITY COUNCIL has awarded 5 contracts to 4 suppliers.

    Who wins here
    1. AECOM LTD2× · 40%
    2. Asbestech Ltd1× · 20%
    3. The PCS Group1× · 20%
    4. GROUNDWORK LONDON1× · 20%

    Across environmental services, the most active winners are BIFFA WASTE SERVICES LTD, CHURCHILL CONTRACT SERVICES LTD, VEOLIA ES UK LIMITED — the field to beat, or your route in as a partner.

    More from WESTMINSTER CITY COUNCIL

    4 listingsView all →
    Media & Communications🇬🇧United Kingdom

    Community Sports Equipment and Outdoor Fitness Stations

    Westminster City Council seeks suppliers to deliver app-enabled sports equipment access and outdoor fitness stations providing free community sports and wellbeing infrastructure across the borough.

    est.£77,000WESTMINSTER CITY COUNCIL
    Published 3 Nov 2026
    OpenIT & Software🇬🇧United Kingdom

    Regulatory Services Software Contract Extension

    Extension opportunity for regulatory services software to support WCC's ongoing compliance and regulatory operations.

    WESTMINSTER CITY COUNCIL
    Published 28 Oct 2026
    AwardedEnvironmental Services🇬🇧United Kingdom

    Indoor Air Quality Sensor Delivery Partner

    Delivery partner needed to distribute indoor air quality sensors to residents and provide setup support for an inequalities research project.

    WESTMINSTER CITY COUNCIL
    Published 28 Oct 2026
    OpenConstruction🇬🇧United Kingdom

    Water Butts Supply and Installation Pilot Programme

    Westminster City Council is piloting a water butt programme to reduce flooding, conserve water, and support climate resilience in flood-prone areas.

    WESTMINSTER CITY COUNCIL
    Published 28 Oct 2026

    Open in Environmental Services

    4 open listingsView all →
    OpenEnvironmental Services🇬🇧United Kingdom

    Communal and Window Cleaning Services Contract - Stage 1 Application

    Trent & Dove Housing is inviting qualified contractors to apply for a three-year communal and window cleaning contract across multiple housing and corporate locations, with potential two-year extension.

    Trent & Dove Housing Limited
    Published 3 Nov 2026
    OpenEnvironmental Services🇬🇧United Kingdom

    Clinical Waste Disposal Services - Hertfordshire County Council

    Hertfordshire County Council invites preliminary market engagement for the collection, treatment, and disposal of clinical waste from its three-station transfer network across the county.

    Hertfordshire County Council
    Published 3 Nov 2026
    Environmental Services🇬🇧United Kingdom

    Waste Treatment and Disposal Services Contract

    Scottish Borders Council seeks qualified bidders to provide waste treatment, disposal, and haulage services for approximately 38,450 tonnes of municipal, commercial, bulky, and street cleansing waste annually.

    est.£25,000,000Scottish Borders Council
    Published 3 Nov 2026
    Environmental Services🇬🇧United Kingdom

    Independent Evaluation Consultant for Lost Peatlands Connections Project

    Appoint an independent consultant to evaluate a three-year National Lottery Heritage Fund-supported project restoring upland habitats and strengthening community connections across South Wales valleys.

    est.£35,175Neath Port Talbot County Borough Council
    Published 3 Nov 2026
    Take action
    View tender on sourceFind a Tender

    Full notice and submission process on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-06f169

    Track

    Know when this goes to tender

    Sonar emails you the day the tender is published, then 7 and 2 days before it closes.

    Track this notice

    Free · No card

    Your fit

    Could you win this?

    A straight answer for your business — bid, partner or pass — based on who wins WESTMINSTER CITY COUNCIL's work like this.

    5 awards · 4 firms

    Check my fit

    Free · No card

    WC
    Buyer
    WESTMINSTER CITY COUNCIL
    Sector
    Environmental Services