Welcome... a bit about ourselves and get to meet our award winning team!

HCL was formed by Sam Diment in 2000 and our studios are based on the Chiswick high Road, we design, build and maintain gardens to the highest of standards. We've had gardens featured in many magazines and television programs since 2005, winning industry awards for our construction service. We currently work for some of the countries top garden designers, two of which won gold medals at Chelsea 2014.


We have worked with HCL for ten years, over which time we have worked on 50 garden projects together. The quality of their work is excellent and their landscaping teams are very good to work with
— Charlotte Rowe, Gold medal Chelsea flower show designer 2014
We have used HCL on a number of garden projects and have always been thoroughly satisfied with the service they offer. The team offer a practical, friendly and reliable approach to landscaping all of which have led to our clients satisfaction but most importantly beautifully constructed gardens
— Dan Bowyer, Director. RHS Gold and 'Best in Show' Awards in 2014

I love working with HCL, they are professional, totally reliable and absolutely meticulous. Every project is planned with the same respect for detail and site problems are solved with care and efficiency.
— Philippa O’Brien, MSGD. Chair of Society of Garden Designers
HCL have been appointed to undertake the both soft and hard landscape contract for del Buono Gazerwitz having gone through a competitive tender process.

During the course of these projects we found the standard of workmanship to be very high. At all times, the team were very good communicators, making sure to keep us fully up to date with site progress. Their work was tidy, efficient and as per the proposals and programme. In addition, they were pro-active in providing cost effective solutions to unforeseen situations.

The client felt that HCL were extremely professional and extremely amenable at all times. We would have no doubt in appointing HCL to undertake future work for del Buono Gazerwitz Ltd.
— Paul Gazerwitz, CMLI, MSGD

HCL is an excellent company to work with and I would not hesitate to recommend them to any of my neighbours. The maintenance team are hardworking and very courteous. I am always happy with the end result.
— Margot James, Conservative MP
I have been using H.C.L for over 4years and I have always been impressed with the high level of detail. The team attend weekly to maintain my garden and I feel very safe leaving it in their hands. I find them to be a very professional organisation.
— Andy Bassadone, owner of Bills and Jackson & Rye restaurants

I have employed HCL for the past seven years for both hard landscaping and garden maintenance. I have been pleased with the care and attention H.C.L provide to my garden. They are very polite, helpful and reliable. The team are knowledgeable and always happy to provide advice. I wouldn’t hesitate to recommend Sam Diment and HCL .
— Lynne Guyton

Sam Diment 


Managing Director

Sam is the company owner and works on the construction side of the company. Along with Peter Jaslowski, he personally project manages all the companies garden builds.

"My ethos, when it comes managing our builds, is to ensure that our attention to detail and quality of finish is of the highest possible standard -the best way to achieve this is to be totally involved myself.

Myself and our Contract Managers communicate closely with our clients and designers to ensure that the entire process runs smoothly. We aim to conduct ourselves with an efficient and friendly attitude to our management – nothing is too much trouble!"

Piotr Jaslowski 

Senior Project Manager

Piotr has worked within HCL for over 10 years now, having started as an on site landscaper. He now helps project manage HCL’s garden builds with an extremely knowledgeable and positive frame of mind.

"In the last 10 years we have worked for so many different garden designers who all want to use individual and unique materials. This has meant that myself and the team have become experienced using many different timbers, stones and new landscaping materials.

We can now create a polished rendered finish in any available colour on the market, we can in part textures onto surface which mimic the natural veining found within stone. If there is a particular stone or timber that we are required to instal, we can advise on sealants and treatments before and after installation – this can not be taught, you can only learn these applications by years of experience and research!"

Emma Dawson

Project Designer

Emma has been working within the company for 8 years, after completing a 2 year Diploma course in Horticulture and Garden Design, which culminated in a silver award, show garden at Hampton Court Flower show 2006.

Previous to this, Emma has a back ground in Art & Design and worked for over 8 years in the field of Horticulture both in Holland and the U.K, giving her valuable practical knowledge when working on design projects.


Warrick Reid

Maintanence and Soft Landscaping Manager

Warrick is comparatively new in the company and is the soft landscape manager and leads the coordination of the maintenance teams.  He interacts closely with clients and designers to ensure all gardens are installed and maintained to a high standard.