Aquasource (SW) Ltd

Water Boreholes, Groundsource and Construction Services

Category : Recent Contracts

Ground Source Drilling for Tight Spots

Drilling Rig

Drilling Boreholes

Aquasource (SW) Ltd t/a Ground Source South West has started a Ground Source Heat Pump project on the Lizard Peninsular.

The project involves drilling up to 120m deep boreholes in the very small front gardens of social properties on an estate.

The access is very tight and we were just able to squeeze our Beretta T46 into the space available.

Tidyness and site cleanliness is paramount with all dirty water being tankered off site and the ground covered in tarpaulins and plywood to protect it from the drilling operations.

The ground is a very hard granite type rock with clay bands.

If you have a site that needs drilling for Groundsource Heat Pumps, or a water borehole, please give us a ring on 01726 824837



Groundsource Boreholes completed for local company.

Groundsource DrillingGroundsource Borehole Drilling

Aquasource (SW) Ltd have successfully completed 1280m of groundsource heat pump boreholes on one site for a local company at a project near Wadebridge in Cornwall.

The ‘down the hole hammer’ drilling technique was used to drill the holes.

The borehole comprise 10 number, 127mm diameter holes drilled to a depth of 120m.

There was also a requirement for an additional 80m hole for a separate system on site.

Because a design life of 25+ years was required  crack resistant polyethylene Geothermal probes were inserted into the holes.

To ensure maximum performance the boreholes were backfilled with thermally conductive material.

Header Pipework for Groundsource.

The  required header pipe linkup will also be carried out by Aquasource (SW) Ltd. 

This will involve the installation of an underground groundsource chamber manifold and all pipework needed to connect the boreholes to the manifold and from the manifold to the property.

All pipework will be joined using electrofusion techniques and pressure tested on completion.

For more information please contact Aquasource on 01726 824837 or email.


Groundsource DrillingGroundsource Drilling
Groundsource DrillingGroundsource Drilling

Sea Wall Repair Completed in St Mawes

Sea Wall Repair

Aquasource have completed a sea wall repair to an exposed wall near the Henrician Castle at St Mawes in Cornwall.

Sea Wall Repair

Before :- Sea Wall damaged by storms

View of Sea Wall Repair


The Sea Wall had been damaged in the storms of February 2013 and our client had engaged Richard Holbrook as a structural engineer to design a cost effective solution. 

Aquasource were then engaged to carry out repairs to the sea wall in accordance with Richard Holbrook’s design.

Because  the is  wall just above the high water mark conditions were tricky.  The sea wall repair was to be undertaken in the depth of winter in an exposed situation.  M & M Scaffolders designed and installed a temporary working platform to allow safe access to the area at all states of the tide. The platform also had to modified to allow for the installation of the self drilling anchors. We were lucky with the weather and were able to complete the works in good time without much interference from mother nature.

The Works

The sea wall repair comprised the construction of a new wall along the base of the existing wall, the installation of self drilling rock anchors and crack stitching to the existing wall.

All materials had to be carried down several steep flights of concrete steps and all the concrete used had to mixed on site from materials carried to the site by wheelbarrow!

Additional works included the a small extra piece of sea wall and the rebuilding of a set of steps that had also been damaged in the storms to allow the client and his tenants easier access to the sea.

For more information of this or for advice and quotes for similar projects please contact Roger Wedlake or phone 01726 824837

Gallery of Pictures




Well Restored for Cornish properties.

Aquasource (sw) Ltd has successfully completed the refit of a disused well incorporating a water storage tank, pressure set and water filtration.

The system was designed to meet the water needs of 3 individual cottages and a small holding.

For more details on our range of water related services please contact Steve on 01726 824837 or email 

Installation of water borehole system for a large farm and private houses

New Mains Replacement Private Water System Installed

A new system installed to replace the existing mains supply feeding around 200 cattle as well some private houses.
The system is installed in a new shed, complete with water filtration, potable storage tank and twin variable speed booster pumps, ensuring perfect water pressure at all times.
For more details or to enquire about a new system please contact Steve on 01726 824837 or email


New Install for Private Customer with low mains water pressure.

Filtration and Treatment

Installation of water borehole and water filtration at a private property near Blisland

Aqusource has drilled a water borehole and completed the installation of a pressurised potable water supply for a residential property in Cornwall.

The water is treated to a potable standard and the system replaces the existing mains supply that was leaking and had very poor pressure.

For more details on our range of water related services please contact Steve on 01726 824837 or email


Nice Day for Groundsource Drilling

Aquasource (SW) Ltd t/a Groundsource South West has completed two new Groundsource boreholes for a client on the Lizard peninsular.

As you can see the weather was outstanding.

The holes were fitted with 32mm groundsource probes, pressure tested and grouted on completion.

We will then install a two way manifold and connect the boreholes back to the Ground Source Heat Pump.

More information on Groundsource Heat Pump Drilling please contact Roger Wedlake or Andy Lutey .

On 01726 824837


New Large Pond in Cornwall Constructed By Aquasource

New Pond Created

Aquasource SW Ltd have successful created a large recreational pond on a property near St Austell. Aquasource carried out all of the works required to excavate, shape and line the pond. before re seeding the ground.

The pond is also filled by a private water borehole also drilled and commissioned by Aquasource SW Ltd. For any similar projects you may have please contact Andy on 01726824837

Water Pressure:-Low Pressure on Mains Solved

The Problem:- Low Water Pressure

A client in Cornwall contacted us complaining that the water pressure supplied by the local water supplier was not high enough to meet their demand.

Our clients had recently refurbished their property to a high standard. Their plumbing contractor, Pip Kevern Plumbing and Heating, needed a bigger supply to effectively run the new showers and baths.

The local utility could not supply the water pressure required due to the very long pipe length and small size of the mains supply.

Because we have worked with Pip many times in the past to solve water supply problems for his customers. Aquasource was asked to come up with a solution.

Consequently Pip Keverne and Aquasource worked together to solve the clients problem.

The Solution

We suggested that a booster set attached to a storage tank would be a much cheaper and equally effective alternative  to a new, bigger, and very expensive incoming main supply from the utility provider. .

We installed an electronically controlled booster set to a pressurised system. Also  a debris filter to filter out any dust.

To sterilise the water we fitted a u.v disinfection system.

This system supplies the house with all the water it could need.

The system was designed to fit in a small out house. This was due to space constraints in the property.

The system was installed and commissioned in one day. Consequently our customer can now shower in comfort without having to worry about a lack of mains water pressure.

The job is in Cadgwith, On the lizard, in Cornwall.

Water Pressure Boosting SystemWater Pressure Boosting System

The photo shows the Debris filter, ultra violet disinfection, tank and pressure set installed in a small outhouse.

Contact us ff you have problems with low mains water pressure. We will provide a cost effective solution to your problem.

Aquasource will diagnose the problem. Specify the solution and efficiently and neatly install and commission the required plant.

For more details please contact the office on 01726 824837 or email

Aquasource (SW) Ltd are a leading provider of private water systems, water boreholes, Ground Source Heat Pumps and construction Services.

We operate throughout Cornwall and West Devon

Ground Source Heat Pump Boreholes in Newquay

Aquasource (SW) Ltd t/a Groundsource South West have completed 10 boreholes for Ground Source Heat Pumps at a new housing site in Newquay. The  use of Ground Source Heat Pumps will enable the  properties  to be Zero Carbon Homes.

Geothermal hole details.

Due to expected ground conditions drilling technique used for the Ground Source Holes was down the hole percussion. This technique  enables holes to be drilled through hard solid rock.

The Ground Source holes were drilled to a depth of 85m, probe inserted and grouted with Geothermal Grout from the bottom up.

The Geothermal grout seals the holes, provides good heat transfer from the ground to the probes and  prevents contamination of the ground water by dirty surface water. Bottom up grouting ensures that the holes are filled completely with no gaps that may prevent efficient thermal transfer. This can be due to partial hole filling and is to be avoided if possible.


Ground Conditions

The holes were completed despite some very challenging ground conditions which tested the ingenuity of our drillers to the limit!

This was because a near horizontal layer of soft clay needed to be overcome to enable the successful insertion of the Ground Source Geothermal Probes.

Consequently all the holes  were cased through  the clay zone into the stronger rock below.

The amount of water encountered during the drilling also posed problems for the drillers.

The wetness of the holes however is good news for the performance of the Ground Source Heat Pump system.

More Information

Working Principle of Ground Source Heat Pumps

Working Principle of Ground Source Heat Pumps

For more information on our range of services for Heat Pumps including drilling and ground works, Electrofusion jointing and the supply and installation of the Kensa range of Heat Pumps in commercial and domestic properties please contact Roger Wedlake on 01209 862874, 01726 824837, 07980499619 or email

You may be able to claim for Government support through the Commercial or Domestic Renewable Heating Incentive schemes. Please contact us for more details or follow the links.