Specialist Borehole Services
Diagnostic, rehabilitation, replacement and compliance services across the borehole portfolio. Sold standalone — for systems we installed and for systems installed by others.
Beyond drilling new boreholes and ground-source systems, our in-house borehole technical team delivers a range of standalone specialist services. These cover the diagnostic, rehabilitation and compliance work that keeps existing systems performing — and the testing and inspection work that supports new design, planning submissions and pre-acquisition due diligence.
We work on systems we installed originally and on systems installed by others. All services are delivered by our employed technical team using our own plant — not subcontracted.
Our specialist services
Each service is sold standalone with a fixed scope and a written quotation. Many are commonly combined — for example a camera survey before a Boresave treatment, or pump replacement alongside a survey.
Boresave — borehole rehabilitation treatment
Chemical rehabilitation to restore yield and water quality on existing boreholes affected by iron-bacteria fouling, biofouling or chemical scale.
Targeted chemical injection, controlled soak, full pump-out and disinfection. Restores yield and recovers water quality on boreholes whose performance has dropped over time — often extending borehole life by years and avoiding the cost of redrilling.
When you might need it
Yield has dropped meaningfully · water quality has changed · routine maintenance pre-empting decline
Downhole camera surveys
High-resolution video inspection inside an existing borehole using a downhole camera.
Lightweight rig and camera lowered through the borehole to record full-depth video of the casing, screen and surrounding formation. Output is a video file plus a written report identifying any structural issues, biofouling, blockages or screen damage.
When you might need it
Diagnosing declining yield · pre-rehabilitation assessment · pre-purchase due diligence · insurance / regulatory evidence · post-incident inspection
Borehole pump & riser replacement
Pull and replace worn or failed borehole pumps and riser pipework.
Mobilise lifting plant, pull the pump and riser column to surface, replace worn components, re-deploy and re-commission. Typically combined with a downhole camera survey to verify underlying borehole condition before re-installing.
When you might need it
Pump motor drawing high amperage · supply pressure dropping · scheduled end-of-life replacement · riser pipework corrosion
Soakaway servicing — air lifting (stormwater only)
Air-lift cleaning of stormwater soakaways to restore drainage capacity. Stormwater systems only — not foul or contaminated drainage.
Compressed air injected at depth to displace silt, fines and biological build-up that have accumulated and reduced the soakaway's infiltration rate. Restores design capacity without excavation or replacement.
When you might need it
Stormwater backing up · slower drainage performance · scheduled preventative maintenance · pre-winter capacity check
Soakaway testing — falling-head infiltration
Falling-head infiltration tests to determine soakaway capacity for design purposes or to verify ongoing performance.
BRE 365 methodology where applicable: pre-soaked test pit, water added to a measured depth, fall in water level recorded over time. Output is a written test report giving the soil infiltration rate and the soakaway sizing implications. Required for many planning and building-control submissions.
When you might need it
Planning application support · building-control submission · pre-design assessment for new soakaway · performance verification on existing systems
Filtration system surveys & reports
Physical inspection and performance assessment of existing water-treatment and filtration systems.
On-site inspection of filtration plant, water-quality sampling, review of media life, system sizing and pressure-drop characteristics. Output is a written report with recommended actions and supplier-neutral specifications.
When you might need it
Underperforming treatment · routine compliance review · Private Water Supplies Regulations review · pre-acquisition due diligence
GSHP specialist services
We deliver a range of GSHP-specific specialist services alongside the borehole work above — system commissioning audits, header-manifold rework, ground-loop pressure testing, heat-pump performance optimisation and similar. The detailed list will appear here shortly. In the meantime, get in touch and we'll advise on what fits your situation.
Discuss a GSHP specialist requirement →Related services
Specialist services often sit alongside core borehole work and recurring maintenance contracts. The pages below cover those adjacent capabilities.
Water boreholes
New water borehole design, drilling and licensing for private water supply.
Deep bore soakaways
New soakaway design, drilling and discharge permits — adjacent to the testing and air-lifting services on this page.
Servicing & Maintenance
Recurring maintenance contracts on boreholes, GSHP systems, pumps and water treatment.
Need a specialist service?
Tell us what you're seeing on your system — yield drop, water-quality change, performance issue, planning question, or compliance review. We'll recommend the right service or combination, with a written quotation before any work.