Project Quantity Surveyor in London

Job-ID: 103526Category: CommercialLocation: Cumbria, United KingdomWorkplace: HybridPosted: 2026-11-02Contract Type: PermanentDriving Required: YesSecurity Clearance Required: NoCostain have won extensive work across the water sector this year to support the AMP 8 investment cycle. We have been appointed by United Utilities as one of 7 partners to the Enterprise, delivering 5.5bn of projects in the Asset Management Period 8 (AMP8) between 2025 – 2030, and AMP 9 (2030 – 2035). Our scope is to provide project management, design, construction and commissioning services on design and build schemes throughout the North West and Cumbria region covered by United Utilities. Projects vary in value, covering both infrastructure and non-infrastructure assets on water and wastewater sites with wider Enterprise partners.The role of Project Quantity Surveyor is to provide commercial support on projects to ensure that it is procured, delivered within budget and to the highest quality whilst exceeding our customers' expectations.At Costain, we believe diverse perspectives drive innovation. If you’re passionate about making a positive impact and think you can bring value to our team, we’d love to hear from you even if you don’t tick every box. Your unique skills and experiences could be exactly what we need. #LI-KP1QualificationsEssential Full Clean Drivers LicenceRelevant degree in Quantity Surveying or equivalent and RICS / CMinstCES qualified or finalising qualification Hold or be nearing completion of Full Membership with RICS / CIECSResponsibilitiesLead and develop the efficient and effective management and issue of accurate, timely and compliant notices and correspondence and ensure the compliance of all contractual activities on the projectProject day to day guidance, and provide strategic advice to technical and construction staff for matters having significance to the projects, risks and commitmentsEnsure contractual and commercial risks and opportunities are identified to the Project Director / Commercial Manager and address in a timely mannerMaintain registers of variations, delays, extension times and claims, effective and consistent implementation of the Company's commercial policies and proceduresAssist with preparation of monthly progress valuations and claims for work completedLiaise with employer commercial & client teams within a collaborative manner to leverage opportunity and optimise the project outturnProduce pre-Contract tender negotiations & reports where necessary Produce monthly cost reports, accurate and regularly updated forecasts, and contract budget reports to ensure details are appropriately underpinned and robust. This will involve regular visits to site and working with site team and collaborative planning board to ensure that forecast reflects all works required to be undertaken including resourcesReview value management / value engineering exercises Prepare, review and complete sub-contract documentation Prepare & agree final accounts with sub-contractors Be fully responsible and accountable for procurement and management of subcontracts from initial placement of order to final account Monitor and update procurement plan, sub-contract procurement including analysing commercial comparisons Proactively liaise with the site team and reconcile weekly plant, material, labour reconciliation against budget Understand and evaluate entitlements to extensions of time / loss & expense / claims and/or disputes relating to outstanding payments to sub-contractorsKnowledge, Skills, and ExperienceEssentialSignificant commercial experience preferably within the Water SectorExperience of NEC4 form of ContractIncreasing knowledge of a variety of forms & options of contractsHave a good understanding and experience of business systems, spreadsheet development, cost analysis, programme evaluation and development, compensation event and/or variations assessment and evaluationHave experience or appreciation of the risk management process for both schedule and cost and the use of Earned Value ManagementPrevious knowledge of water sector essentialAbout the companyCostain helps to improve people’s lives with integrated, leading edge, smart infrastructure solutions across the UK’s energy, water, transportation and defence markets. We help our clients improve their business performance by increasing capacity, improving customer service, safeguarding security, enhancing resilience, decarbonising and delivering increased efficiency. Our vision is to be the UK’s leading smart infrastructure solutions company. We will achieve this by focusing on blue chip clients whose major spending plans are underpinned by strategic national needs, regulatory commitments, legislation or essential performance requirements. We offer our clients leading edge solutions that are digitally optimised through the following five services which cover the whole lifecycle of their assets: future-shaping strategic consultancy; consultancy and advisory; digital technology solutions; asset optimisation and complex programme delivery. Our culture and values underpin everything we do. Costain appreciate the time and effort taken when applying for one of our positions but, due to the high volume of responses, we are unable to provide individual feedback on candidates at application phase. We do share individual feedback following an interview. A Disability Confident employer will generally offer an interview to any applicant that disclose they have a disability and meets the minimum criteria for the job as defined by the employer. It is important to note that in certain recruitment situations such as high-volume, seasonal and high-peak times, the employer may wish to limit the overall numbers of interviews offered to both disabled people and non-disabled people. For more details please go to the Disability Confident website: