Concrete
Concrete foundation
Concrete bases or encasement are installed only to the approved tank detail, including any specified anchors or sequencing.
Often worth considering for: Buried tanks whose manufacturer requires concrete construction
Specialist base installation
Septic Tank Base Groundwork
A buried wastewater tank needs its manufacturer's complete bedding, anchoring and backfill system—not an isolated generic base.
Illustrative image 50+ years
Family groundwork experience
Full 10-year
Written JustBases guarantee
Fully insured
Documents available
One clear price
Written foundation scope
Built for this application
What the foundation needs to do
Buried tanks are exposed to soil pressure, groundwater and possible flotation as well as their own contents. Each manufacturer sets out an installation method for the tank shell and site conditions.
JustBases can quote for defined excavation and concrete groundwork once the drainage design, approvals and tank manual are available. Tank connection and commissioning remain with the competent drainage team.
Options, assessed properly
Suitable foundation methods
The methods below are possibilities to assess—not interchangeable specifications. We match the foundation to the product, loads, support points, ground and access.
A written price for the approved detail
Specialist foundations are quoted from the actual product, support plan and site information. No VAT is added to the guide prices shown.
Before installation
Dimensions, approvals and responsibilities
Do not order excavation from tank dimensions alone. Working space, safe side slopes or shoring, bedding and pipe levels all affect the actual excavation.
Ground screws are not an alternative to the specified buried-tank base or encasement. Any separate kiosk or platform support is considered independently.
JustBases quotes the agreed foundation and groundwork. Product installation, specialist connections, commissioning and third-party design remain outside our scope unless the written quotation expressly includes them.
A simple route forward
From first call to ready base
- 1
Talk through the plan
Tell us about the septic tank, approximate size and site. We will identify any useful supplier information.
- 2
Agree the foundation
We assess access, levels, support requirements and ground, then provide a clear written quotation.
- 3
Install and hand over
Our team installs the agreed base and leaves it ready for the approved building or equipment installer.
Genuine customer feedback
Reviews of our foundation work
"I couldn't recommend Craig highly enough! Communication prior to the job was outstanding even considering our ever changing goal posts. Craig and his team turned up exactly at the agreed time, were well presented, friendly and professional. The cleanliness, attention to detail and quality of the job was outstanding."
"Good standard of workmanship. Friendly and efficient. Prompt response for estimate and fitted into our timescale. Will be using the firm in future and thoroughly recommend them."
"Craig and his team were very professional throughout the job. They worked tirelessly and extremely hard. The job involved digging up a thick reinforced concrete base. Then creating a whole new base with precision engineering in preparation to accept a new building on top. The result was an excellent job all round."
Easy to start, free to ask
Tell us about your septic tank
You do not need drawings or a finished specification before getting in touch. Send what you have and Craig will explain the useful next step.
Helpful details, if available
- Drainage design and approvals
- Tank make and manual
- Invert and cover levels
- Groundwater information
- Excavator and spoil access
Talk to Craig
Craig will listen to what you are planning and help establish the foundation information that matters.
Online quote requests are normally answered within 24 hours, excluding weekends.
Request your free quote
Just give us your contact details and a short description of what you want to build. We will guide you through the rest.
Your enquiry
Septic Tank Foundations installation
Straight answers
Septic Tank Foundations FAQs
No. A competent drainage designer should select and size the system and confirm discharge requirements before we quote the groundwork.
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