About Us

We design, build, and implement essential groundworks infrastructure for multi-million pound housing schemes in Britain, working with regional divisions of the UK's most prestigious national property developers.

Mackoy was founded by Michael Mayock in 2011 and is now one of the largest groundwork specialists operating in the south of England. We provide clients with the qualified operatives and in-house plant to independently fulfil six-figure infrastructure contracts.

Since undertaking our first contract with Bellway back in 2011, we now operate in five key regions. We work with the nation's leading homebuilders to develop vital underground infrastructure for new homes, roads and sewer systems, while simultaneously providing the valuable finishing touches that make our clients' projects complete.

Our Company Growth

We started small but that didn't last long.

In under a decade Mackoy has transformed from a family-run, home-based operation into a major south coast groundworks contractor.

Our headcount isn't the only thing that's gone up: we've invested £9 million into new plant since business began, increasing our machine and vehicle fleet to more than 150 high-powered machines, purchased from leading manufacturers in construction engineering. This gives us the edge when it comes to getting the job done safer, faster and more efficiently.

Empowering our operatives with the newest high-spec plant is just one of the ways we've successfully grown our groundwork operation since 2011. Both our client volume and our contract values have also increased monumentally, with the South's most influential property builders repeatedly appointing Mackoy to fulfill their groundwork infrastructure.

Today, we take on contracts ranging from several hundred thousand pounds to multi-millions, and have expanded geographically to lend our services to projects across Hampshire, Dorset, Sussex, Surrey and Berkshire.


Tonnes of earth excavated annually on average


Meters of pipe laid (the equivalent of 53 miles)


metres of foundations created for our clients' new homes


Mackoy's Capability

At Mackoy, we have the resources to complete large-scale groundwork contracts entirely in-house. Whether a client needs to determine if a new site is ripe for development, or requires technical specifications to bring a project to life, our experienced CSCS operatives have the skills, training and ingenuity to deliver the job on time, on budget and to exceptional high-quality standards.

With a team of dedicated groundwork operatives capable of undertaking everything from earthworks through to oversites, we're uniquely placed to fulfil residential unit infrastructure for hundreds of homes on our clients' sites – not to mention creating essential underground trenches for utilities, sewers, and foundations.

Our excavation toolkit is constantly refreshed with the latest high-spec plant, exclusively purchased from the leading manufacturers of engineering equipment for the construction sector – including Volvo, Hydrema, Hitachi, Hendy Ford and Thwaites. These are all brands that share in the excellent quality credentials we ourselves are proud to be associated with at Mackoy.



Dumpers aren't the only thing we're driving.

We started Mackoy with a desire to do things differently in the groundwork and civil engineering sector, and since day one we've committed to this promise. We have put innovation at the forefront of our business model and actively explore new ways to advance the efficiency of our operations – never shying away from a chance to challenge the status quo.

It's this tenacious appetite for improving ways of working that underpins our policies, processes and purchasing decisions at Mackoy. It forms the catalyst for everything, from our internal training matrix to our Good Practice Guide. In fact, we never tire when it comes to bringing about positive change in our industry, always seeking out new initiatives, equipment and techniques to improve our business.


Health & Safety

Health and Safety on Mackoy Civil Engineering Site with a Groundworks Operative cutting Slabs while wearing all Safety Equipment

From spot inspections and its audits to reviewing our plant and excavation toolkit, Mackoy ensures its operatives are safe when carrying out their jobs. We invest heavily in the right training, equipment and protective gear, and constantly review our processes and practices in line with industry legislation.

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Corporate Social Responsibilty taken seriously by Mackoy Groundworks Operatives deep in discussion

At Mackoy, CSR is something we take pride in. Whether it's investing in new initiatives to reduce our environmental impact or giving back to the local communities we work in, we're always seeking out new ways to show our support and make a difference.

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