FOUNDATION BUILDING SPECIALISTS

Covering London, Kent, including Maidstone, Medway, Sittingbourne, Gravesend and surrounding areas.

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Foundation Contractors in Kent

Areas We Cover

We provide professional foundation construction services across Kent and surrounding areas, including Maidstone, Medway, Sittingbourne, Gravesend, Tonbridge, Sevenoaks, Dartford, Canterbury, and parts of London. If you’re unsure whether we serve your area, please contact us.

Expert Foundation Installation & Groundworks

At Kernahans Contractors, we specialise in delivering reliable and high-quality foundation installation services for all types of building projects — from domestic extensions to commercial structures and new builds.

Foundations are one of the most critical parts of any construction project. Done right, they ensure structural stability, prevent settlement issues, and provide a solid base for everything that follows. Our experienced team combines expert workmanship with proper groundworks to deliver foundations built to last.

Our Foundation Services

Strip & Trench Fill Foundations

We install traditional strip foundations and trench fill systems tailored to ground conditions and structural requirements, ideal for domestic builds and extensions.

Reduced Dig Foundations

Our reduced dig foundation solutions are ideal where ground conditions or access restrictions require precise excavation and material control.

Reinforced Concrete Foundations

For heavier loads and structural requirements, we provide reinforced concrete foundations, engineered for strength and long-term performance.

Groundworks & Preparation

Every foundation we install includes thorough groundworks — from excavation and sub-base preparation to formwork and reinforcement placement — ensuring structural integrity from the bottom up.

Aerial view of a construction site with two concrete building foundations, surrounded by yellow dirt, with scattered construction materials and equipment.
Modern houses with steep gable roofs, large windows, and balconies, set against a clear blue sky during daylight.

Why Choose Kernahans for Foundations

✔ Experienced Foundation Contractors — We’ve installed foundations for a wide range of projects, including houses, garages, extensions, and commercial properties.
✔ Professional Groundworks Expertise — Correct excavation, sub-base installation, and drainage considerations are all part of our foundation packages.
✔ Reliable, Compliant, and Safe — We work to industry standards and follow safe, organised site management practices.
✔ Residential & Commercial Projects — Adaptable foundation solutions suited to project type and size.
✔ Free, No-Obligation Quotes — We provide clear pricing and project planning before works begin.

A large yellow excavator working on a construction site with a clear blue sky and some clouds in the background.

Our Foundation Installation Process & FAQs

How Our Foundation Services Work

1. Site Assessment & Ground Investigation
We assess the site, soil conditions, and project requirements to determine the appropriate foundation type.

2. Excavation & Ground Preparation
Our team excavates to the correct depth, installs sub-base materials, and prepares the site for formwork and reinforcement.

3. Formwork & Reinforcement
We install formwork and reinforcement where required to support concrete placement.

4. Concrete Pour & Finish
Concrete is poured, levelled, and finished to specification, delivering a strong, durable foundation.

5. Final Checks & Handover
We inspect the completed foundation for quality before clearing the site and handing it over.

Frequently Asked Questions

What foundation types do you install?
We install strip foundations, trench fill, reduced dig, and reinforced concrete foundations depending on ground conditions and project requirements.

Do you cover commercial and residential work?
Yes — we install foundations for both domestic and commercial projects throughout Kent and surrounding areas.

How long does foundation installation take?
Timescales depend on foundation type, site conditions, and weather. We will provide estimated timelines during the quote process.

Do you coordinate drainage and other groundworks?
Yes — we can deliver a complete groundworks package, including drainage, excavation, and sub-base preparation.

Get a Free Quote for Foundations

If you are looking for professional foundation contractors in Kent, contact Kernahans Contractors today. Our team is ready to discuss your project and provide a free, no-obligation quote.

Call us on 01634 907072

Or fill in the contact form to get started.

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Our Services

  • A yellow Komatsu excavator with a large bucket is on a construction site, digging into a dirt and rock terrain with a cliff in the background.

    Groundworks

    From underpinning to drainage, from trench digging to driveways, our team will provide you with efficient, professional and timely services, covering London and all of Kent, including Maidstone, Medway, Sittingbourne, Sheerness, Tunbridge Wells, Tonbridge, and surrounding areas.

  • Construction site near a river with partial built structures and metal fixtures on the sand, trees along the shoreline in the background.

    Foundations

    Whether its a new home or a commercial building, Kernahans Groundworks will work with you to ensure we cement solid foundations for your project.

  • Destroyed multi-story building with exposed rebar, debris, and rubble, and a partially visible orange construction excavator in the foreground.

    demolition

    Making extra space, or developing an old premises, we can either provide full scale demolition or soft strip services according to your needs.

  • Construction site with two large concrete drainage pipes installed in the ground surrounded by dirt and grass.

    drainage

    Soak aways or deep drainage, we’re here for you, with a team for every job, we have the tools and plant to ensure you’re not left with flooding or blocked drains.

  • A yellow Komatsu excavator working on rocky terrain at a construction site.

    bulk excavations

    Clearing a large oversite or clearing a garden, we have a machine for every job, and a team ready to ensure your job is completed to the highest standard.

  • Front yard and driveway of a brick house with a two-car garage, well-maintained plants, and a brick mailbox with house number 22.

    driveway installations

    Every home needs a beautiful driveway, we can help you not only design but supply our own aggregates and decorative stones, we will make sure your driveway stands the test of time.

  • Modern backyard with paved patio, landscaped flower beds, shrubs, small trees, decorative planters, and white fencing.

    hard landscaping

    From a garden shed to garden that you have always dreamed of, we thrive on the impossible, and will ensure not only is the job done safely but to the highest standard.

  • Waste mnagement

    Waste Management

    Kernahans offers in house waste management solutions, anything from grab hire, skip hire to man & van rubbish removal. We are a one stop shop!

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