Commercial Geothermal Drilling Project

Geothermal Drilling for Commercial Projects

Getting your customers’ geothermal drilling project off to the best start is crucial; and finding the right geothermal driller to work with isn’t always easy. 

Geothermal drilling for heat pump installers and large scale projects – Place your geothermal drilling project in safe hands

We’ve been drilling geothermal boreholes for heat pump installation companies large and small throughout the UK for over 18 years and have many happy customers.

GSI’s fast and efficient service, will treat your customer and their property with respect. We’re careful to work closely with you and your team to make sure we complete this initial stage of the project to the highest standards. With some of the largest geothermal drilling projects in the UK and Channel Islands already to our name – most recently the HS2 site. We’ve developed a reputation for reliability and honesty, we’re now one of the most trusted and respected geothermal drilling companies in the business.

Drilling boreholes for ground source heat pumps
– business to business

Finding out your borehole drilling contractor won’t be able to finish their part of the job on-time is infuriating and costly!

Perhaps it’s lack of drilling experience or drilling at greater depths that’s the cause of on-site hold ups. Or poor project planning; like moving equipment around your site, not having enough equipment, or worse the right equipment. 

There isn’t much we haven’t contended with in our time. Our aim is to be on and off your site as smoothly and quickly as possible.

Comprehensive on-site assessment

We thoroughly assess your site and plan the best tactics to complete your project. With 11 Massenza drilling rigs mean we drill quickly, efficiently and adapt to any unanticipated above or below ground situations. We confidently take on some of the most demanding geothermal drilling jobs around.


We’ll start your geothermal drilling project quickly

We have a large fleet of 11 drilling rigs. As a result choosing GSI to carry out your job, means we’re usually ready to get started as soon as you need us to. 

Rapid geothermal drilling for large projects – tried and trusted

Trusted by Bowcliffe Hall near York, where we drilled an incredible 72 boreholes, each 140 metres deep. 

Other geothermal projects include a well known country-wide retirement home developer; where each site averaged 22, 150 metre deep bore holes taking roughly 4 weeks each. We completed both on time and in budget. 

We completed a recent ground source heating project of 36 x 130m boreholes for Barton Peveril Sixth Form College in Hampshire, in only 3 weeks by using 4 rigs.

Drilling 4x100m for a new build

Tidy Job, just finished 13 x 155m bore holes

We’re Low Emission Zone friendly

Our newest Massenza MI5 Rig, is fitted with the latest Euro 6 engine. This reduces carbon monoxide, particulate matter (PM or soot), sulphur dioxide and hydrocarbon. And compared with the Euro 5 engine the Euro 6 decreases nitrogen oxide (NOx) emissions by over 55%. 

It’s reduced CO2 emissions make it compliant with any low emission areas in the UK such as London’s planned Ultra-Low Emission Zone.

The GSI geothermal drilling team

Our highly skilled team works hard to maintain industry standards. Everyone on-site is a member of the Construction Skills Certification Scheme (CSCS) and trained to the National Plant Operators Registration scheme (NPORS) standard. 

Each is also a trained first-aider. Many team members have been with us for several years working their way through the ranks and gaining invaluable skills that can only be achieved through hands-on and on-site experience.

Arrange a Free quotation

Please feel free to get in touch to find out more, you can reach us using the form on this page, email or phone. We can’t wait to chat to you!

Call: 07523 208 711
Email: [email protected]

Gretton Site Investigations Ltd
29 Main Street,
Ashley,
Leicestershire
LE16 8HG