Water Boreholes & Ground Source Heat Pumps in Sevenoaks
Specialist drilling and renewable heating services for properties in Sevenoaks and across Kent. Free site assessment, no-obligation written estimate.
Nicholls has worked across Kent for over 20 years, with 70 completed projects across the county to date. Properties in Sevenoaks can benefit from the same in-house design, drilling, installation and servicing teams that have completed water boreholes and ground source heat pump systems for homeowners, farms and commercial sites across the wider region.
We work Sevenoaks alongside our other Kent projects — free site assessment, geological desk study and a written estimate before any work starts. If a borehole or GSHP isn't the right fit for your site, we'll tell you straight.
Geology around Sevenoaks
Sevenoaks is our strongest Kent zone (12+ projects). Sits on the chalk of the North Downs with Lower Greensand below — both highly productive aquifers. Excellent for water boreholes (typical depth 50-80m) and open-loop GSHP. Greensand offers very good thermal properties for either open-loop or large closed-loop systems.
Wider Kent context: Kent's geology varies from the productive chalk of the North Downs (excellent for water boreholes and open-loop GSHP) through the Greensand ridge to the Wealden Clay in the central Weald. The Sevenoaks area (our strongest coverage with 12 projects) sits on chalk and Lower Greensand with good aquifer potential. The Tunbridge Wells area transitions into Hastings Beds and clay, requiring deeper drilling. Maidstone benefits from both chalk and Hythe Beds formations.
Every site is different. A site-specific desk study is the starting point for any project — we cover that as part of the free site assessment.
Services we offer in Sevenoaks
Same in-house team, same processes — used across 70+ projects in Kent.
Water Boreholes
Private water supply across Kent's productive geology.
Learn more →Ground Source Heat Pumps
GSHP systems for Kent properties. MCS certified.
Learn more →Deep Bore Soakaways
Storm drainage solutions across Kent.
Learn more →Servicing & Maintenance
Ongoing system maintenance across Kent.
Learn more →Water Licensing
EA abstraction and discharge licences — UK-wide.
Learn more →Other locations in Kent
We cover all of Kent. Browse other towns we work in:
For the full list of towns we cover and our coverage map, see the Kent county page.
Ready to discuss your Sevenoaks project?
Free site assessment for properties in Sevenoaks and the surrounding Kent area. We'll review the local geology, assess your needs and provide a written estimate.