Lump-Sum Contracting
At Magnum Construct, we bring 30 years of UK marine construction expertise to deliver financially robust dredging contracts. Our commercial team specialises in accurate rate calculations—whether unit-cost or lump-sum—ensuring complete budget certainty from tender stage through to completion.
Advantages for project owners
Magnum Construct delivers certainty through our established lump sum contracting approach, developed over 30 years of UK construction excellence. This procurement method provides clients with defined project parameters from the outset, aligning with RIBA work stages and UK best practices.
However, lump sum contracts have specific criteria that can be both a benefit and a hindrance to a construction project.
Constructability and Budget Control
At Magnum Construct, our preconstruction specialists leverage decades of UK project expertise to optimise every stage of your build. We combine proven methodologies with cutting-edge digital construction practices to deliver:
Cost fluctuations
At Magnum Construct, our extensive experience with lump sum contracting in the UK construction market has honed our ability to navigate the inherent challenges of material and labour cost fluctuations. With three decades of projects across London and the regions, we’ve developed sophisticated forecasting models that draw on historical pricing data and ongoing market intelligence to inform our estimates.
Our team of Chartered Quantity Surveyors and procurement specialists work closely with established supply chain partners to mitigate volatility, building appropriate contingencies while maintaining competitive pricing. We understand that longer project durations require particular attention to market trends, which is why we conduct regular reviews throughout the preconstruction phase to ensure our fixed-price commitments remain robust. This disciplined approach allows us to stand behind our lump sum agreements while protecting both our business and client interests through changing economic conditions.
Provisional sums
At Magnum Construct, we approach provisional sums with the same rigorous planning that defines our entire lump sum contracting process. Our three decades of UK construction experience have taught us how to carefully structure these variable elements to maintain project integrity while preserving client flexibility. We work closely with clients during the precontract phase to clearly define the parameters and triggers for any provisional sum work, ensuring all parties understand the potential schedule and cost implications before commitments are made.
Our contracts meticulously outline the change management procedures for such scenarios, incorporating UK-standard mechanisms for variation orders and programme adjustments. This disciplined approach prevents surprises while allowing sensible adaptability when project requirements evolve. We’ve successfully integrated provisional sums across numerous complex builds in London and beyond, always maintaining transparency and control through our proven project governance frameworks.
