THM Garden Drainage

Covering Ayrshire, the South West of Scotland
& the Southside of Glasgow

From small gardens up to 50 acres we will
cure your drainage problems.

THM Garden Drainage

Covering Ayrshire, the South West of Scotland & the Southside of Glasgow.


From small gardens up to 50 acres, we will
cure your drainage problems.

About Us

With over 30 years of experience in land drainage projects both large and small, we provide expert service with a personal touch.
All projects are overseen by myself to ensure that it meets our high standards of quality and customer satisfaction.


Garden Drainage
Garden Flooding

Symptoms of Poor Garden Drainage

  • Grassed areas take a long time to drain and dry out after heavy rainfall
  • Children and pets are unable to play outside without trailing dirt and mud back indoors
  • Water present even in summer and in extreme cases rashes on the lawn
  • Existing drains have become blocked

Factors Contributing to Poor Drainage

  • Soil type particularly heavy clay
  • Lie of the land
  • Sunshine or shade
  • Changes to neighbouring areas
garden drainage

The Solution

The solution to your drainage problem is to drain the surface water away from your garden / lawn.  This can be achieved by various methods including :-
  • The installation of a herringbone drainage system with gravel place below the surface of your lawn.
  • Replacing the existing faulty system.
  • In some cases, totally replacing soil type utilising sand, gravel and top soil.
  • Where there is  no obvious outlet for water, a sump can be installed with electric pump to remove water to nearby drain or ditch.

Other Services

  • We also install all-weather play areas which include removal of topsoil, draining the designated site, laying of Terram sheeting, and replacing it with playgrade woodchip from Firewood Express
  • Re-turfing – which can be in combination with or separate from our garden drainage service.

Click here for details

Recent Garden Drainage Projects

Drainage Solution

In some instances, a natural “run-off” can be achieved without the use of a sump system. Ground levels can be taken to establish the natural run of water and new drains can be installed to remedy the flooding.

Drainage Solution

“Bad flooding caused by low lying gardens, with no obvious outlet for water, can have a sump installed which pumps the excess water to a nearby drain or ditch.”


A very big thanks to Ewan and the team at THM Garden Drainage, quite simply the drainage installed in our garden has completely transformed it, we had years of the lawn and borders flooding after heavy rainfall,  which destroyed plants and shrubs and made the garden totally unusable. Now even if we have weeks of rain our lawn and borders look great.
This is the best investment we have made in our garden.

I highly recommend Ewan a great worker and tidy too. Thanks again

Jim Webster

Ayr, Ayrshire

“Ewan has taken care of my drainage and landscaping needs on Crawfordston Farm since 2010. He is an extremely experienced individual delivering a high quality service and first class advice. He is a top class professional in his field.”

Rob Woodward

Crawfordston Farm

Big thank you to Ewan and his team for a very professional job on our garden drainage issue.
The ground is already showing positive signs of less water retention following the drainage installation, which was achieved with no disruption to the rest of the garden.
On completion they tidied up to a  very high standard.
We recommend you to others who have a similar issue as to what we had –  10 out of 10.
Well done and “Thank you” 

Helen & Robin

Irvine, Ayrshire

“We have used Ewan from THM Garden drainage on a number of occasions and have found his work to be of an exceptionally high standard. His attention to detail and knowledge is first class, particularly for garden drainage work. I would have no hesitation in recommending Ewan. And he leaves the garden tidy!!!”

Lynne Sinclair

Balbeg Country Holidays, Balbeg Estate

“Over the last 20 plus years, on an almost yearly basis, I have entrusted my drainage maintenance and renewal work to THM Drainage .
I have no hesitation in recommending Ewan for all drainage work. When you hire Ewan not only do you get brawn you get Brains as well.”

Henry Murdoch

Torr Farm

“Ewan from THM Garden drainage has done quite a lot of work for us over the last few years. From big field drains to smaller drive drains. All work carried out carefully and always a clear explanation of what the work entails. Ewan is always enthusiastic and prompt and the work gets done.”

Ghislaine Kennerley

“Thanks again for a great job. I’ll recommend you to anyone with similar problems.”

Mr Morrow

Stevenson, Ayrshire

Contact Us

For further information and details on our services.
Serving Ayrshire, the South West of Scotland & the Southside of Glasgow. From small gardens up to 50 acres, we will cure your drainage problems.