Mammoth Landscape Build established by Dane Treadwell in 2010.  An experienced bricklayer by trade, specialising in creating high quality outside spaces, Dane is a perfectionist, renowned for ensuring that all projects are impeccably finished.

Through mainly word-of-mouth, Mammoth has gained a reputation as a professional and honest company, growing rapidly over the years.  We aim to provide the best service possible by sharing experience and expertise in all aspects of garden design and landscaping amongst the team.

Our team are fully insured and possess the qualifications necessary to transform your outside space.  We handle the job from its conception on paper, to its realisation.  You are able to work with a single individual, where you can share your ideas and bring them to life.

We have recently won a number of awards - BUILD Home & Garden 2021 - Best High-End Domestic Garden Design & Construction Business and Best High-End Garden Design Project and the Prestige London Award for Landscaping Specialists of the Year 2021.

We cover the county of Hertfordshire and nearby surrounding areas.

  • Multi Award Winning
  • Fully trained, Accredited installers for Grono Artificial Grass
  • Trained and registered installers for DuraPost - a revolutionary new fencing system
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