Your expert in deep foundations in Northern Germany since 1900
We'll inspect your building site to make sure nothing goes wrong!
THADE GERDES will handle the deep foundation work for your project promptly, quietly, and hassle-free!
For over 120 years, we have been installing deep foundations quickly, quietly, and without causing vibrations:
→ Even at hard-to-reach construction sites, we’ll take care of your deep foundation work.
→ From displacement screw piles to concrete columns for your residential buildings. Our experts will find the right method so you can start building right away!
Our References for Deep Foundations

Expansion of the Jaderberg Food Market
Construction of 9 displacement screw piles up to 9 m deep in confined spaces.

New Hangar Construction at Norddeich Airfield
Deep foundation using energy piles; 51 piles up to 16 m.

Residential and Commercial Building in Neuharlingersiel
Deep foundation with 24 piles up to 9 meters deep

Expansion of an outdoor swimming pool
85 + 54 piles up to 13 m for the renovation and expansion of the Rastede swimming pool.
Why should I, as a homeowner, think about the floor first?
As a builder, you have to juggle thousands of things at once. No wonder so many project managers don’t think about soil conditions until just before construction begins. But be careful! Because a lot can go wrong there …
If the ground is too soft, your structure will gradually sink and become increasingly crooked.
Cracks are forming in the building, causing windows and doors to no longer close properly.
And if gas lines end up at an angle, it can get really dangerous.
But it doesn’t have to come to that.
With the right service provider, you can easily avoid all of that.
3 Criteria for a Smooth Start to Construction
Before you begin working with your contractor, you should make sure that these three criteria for successful deep foundation work are met …
1. Site Investigation and Structural Analyses
Assess your building site and consult experts to perform structural calculations for the deep foundation. This will ensure that the deep foundation can be installed properly.
2. Permits
You must first obtain the necessary permits for your deep foundation work.
3. Coordination with Other Trades
To avoid delays, it is important to coordinate schedules with other trades before beginning the deep foundation work. This will ensure that your project can proceed without interruptions.
Here at THADE GERDES, we’ll take care of everything for you!
Stable Construction Projects -
with THADE GERDES
Before a construction project can and may begin, the soil must be tested. This ensures that it has sufficient bearing capacity and can support the load of the planned structure.
From displacement screw piles to concrete columns for residential buildings, at THADE GERDES we’ll find the right deep foundation method for you:
Here’s how it works:
1. Comprehensive Site Investigation
After a comprehensive site investigation, we’ll determine whether bored piles are a good fit for you.
In consultation with your structural engineer and the specialist responsible for calculating the required pile system, we’ll find the right solution for your site and your construction project.
The bored piles function like stilts underground, supporting your house securely.
2. Rapid Implementation
In many cases, a partial building permit is sufficient to construct the foundation. We then drill the piles as quickly as possible. Simply put, a deep hole is drilled into the ground, into which a steel reinforcement cage is inserted. The length of the cage corresponds to the depth of the hole. The borehole is then filled with concrete, enclosing the reinforcing cage. Once the concrete has cured, the foundations of your structure can be built on this pile and other piles.
What’s more, we do this with almost no noise and without causing vibrations—so the neighborhood isn’t disturbed.
From the Initial Consultation to Deep Foundation Work
Initial Consultation (15 minutes)
During a no-obligation initial consultation, we’ll discuss the initial details of your project. What are your plans? By when does everything need to be completed? What documents do you already have on hand? Where is the construction site located? Once we’ve clarified everything, we’ll send you a quote.
2. Offer
Based on all the information you provide, we’ll prepare a quote for you promptly—and we’ll break down the costs so you have a clear overview of all expenses, with no hidden costs, of course!
3. Let's get started
Does this offer sound like a good fit for you? Then we can get started on your project right away. You’ll have a dedicated point of contact who will keep you updated at all times!
Are you ready to get deep?
Click “Request Now” or call us directly:
04931 938460
For more than 120 years: Insightful & Thought-Provoking
Since the company was founded in 1900, THADE GERDES has made a name for itself as a reliable drilling company in northern Germany and far beyond the borders of East Frisia.
Rimt Wortberg
Managing Partner, Bachelor of Science in Civil Engineering (TU)
In addition to his duties as managing director, he is responsible for sales, public relations, and financial management.
Hauke Anbergen
Managing Partner, Ph.D. in Civil Engineering
In addition to his duties as managing director, he is overseeing the establishment of another company location in the Hamburg area and our projects in that region.
Erwin Fisser
Authorized Signatory, Bachelor of Engineering in Mechanical Engineering (University of Applied Sciences)
Our expert in the technical department and head of machinery and vehicle fleet, transportation, logistics, and materials.
Imke Hoefer-Aeils
Authorized Signatory, Bachelor of Science in Civil Engineering (University of Applied Sciences)
Our expert in operations, operational management, billing, and documentation.
Felix Harms
M.Sc. in Civil Engineering
Our department head for piles and cost estimation for all projects.
Sonja Büscher
Head of the Secretariat
Your point of contact for all your questions and concerns.
Would you like to join our team?
Frequently Asked Questions
Why is deep foundation work so important for construction projects?
In northern Germany, the ground is often not stable enough for structures, primarily due to layers of peat and soft soil. These cause the ground to compress under the weight of a building, a phenomenon known as settlement. Depending on the soil type and weight, this settlement can amount to several decimeters and continue for years. This settlement can cause cracks in buildings and compromise their safety and functionality.
In these areas, deep foundations are essential to ensure the stability and safety of buildings.
Why is a comprehensive site investigation important before construction begins?
How long does THADE GERDES's soil assessment take?
What criteria must be met before drilling begins?
How does THADE GERDES handle particularly challenging soil conditions?
THADE GERDES has extensive experience with complex soil conditions.
We have developed specialized equipment and methods to work effectively even under difficult conditions.