Basement and under house excavations using tight access equipment

Basement & Under-House Excavation

Tight Access Solutions for Confined Residential Sites

At DigTight, we provide specialist excavation services for under-house and basement projects where space is limited but access is still possible. Using compact 1-tonne diggers with retractable tracks and low ground pressure—capable of fitting through openings as narrow as 680mm—we carry out precise excavation where traditional machinery simply can’t go.

Whether you’re lowering a floor for a new basement or preparing the subfloor for structural upgrades or plumbing, our team ensures your excavation is accurate, efficient, and disruption-free.

🏗️ Our Services

✅ Basement Excavation for New Builds or Retrofits

We excavate beneath existing homes to create additional basement space or extend existing subfloor areas. Our team handles:

  • Strategic access planning

  • Careful excavation near foundations

  • Hauling and removal of excavated material

✅ Under-House Excavation for Renovation Projects

Creating room for extra storage, utility installs, or slab pours? We excavate in low-clearance but accessible areas, prepping for plumbing, drainage, or extensions.

✅ Subfloor Prep for Builders & Trades

Need solid, level ground under a house for your next stage of work? We create well-prepared, accessible work zones for:

  • Drainlayers and plumbers

  • Concrete and slab installers

  • Foundation repair and retrofit crews

👷 Who We Work With

  • Homeowners looking to expand or renovate

  • Builders and renovation contractors

  • Drainlayers, plumbers, and foundation specialists

🔍 Why Choose DigTight?

  • Access-Ready Gear:
    Our mini excavators are designed for narrow side paths, basements, and under-house entry points down to 680mm wide.

  • Precision in Constrained Spaces:
    We specialize in working beneath existing structures where clearance is limited but machinery access is still achievable.

  • Clean, Efficient Process:
    With a focus on tidy work and minimal disruption, we use ground protection mats and safe excavation practices to protect your property.

  • Experienced Crew:
    Our operators understand the complexity of under-structure excavation and deliver results you can build on—literally.

📞 Let’s Dig Down to Build Up

Whether you're planning a basement addition or need precise excavation under an existing home, DigTight brings the tools and experience to get it done—cleanly, safely, and efficiently, even in tight access areas.

Get a Free Consultation

Request a free consultation and get personalized solutions tailored to your Wellington earthworks project.