Service
Horizontal directional drilling
Controlled underground path — pipes and conduits without a full open trench (HVU / HDD).
Open excavation often means damaged surfaces, traffic disruption and costly reinstatement. Horizontal directional drilling (HDD / HVU) installs pipes and protective conduits along a controlled path underground — with less impact on asphalt, paving and green areas.
When to use HDD
- Road, street and railway crossings
- Built-up areas and courtyards
- When asphalt, paving or green areas must be preserved
- Near existing networks that need a controlled bore path
- Water, sewer and gas pipe sections
- Electrical and telecom protective conduits (for cable pull-in)
HDD / HVU process
The sequence is indicative — route data and ground conditions determine how the approach is adjusted on each job.
Site assessment and route data check
Planning entry/exit points and identifying obstacles
Pilot bore (controlled underground trajectory)
Reaming/enlargement and preparation for pull-back
Pipe or protective conduit pull-in
Handover of the result (as required by the project)
What we need from you to prepare a quote
- Approximate location / address
- Start and end points (map or sketch)
- Desired pipe / conduit diameter
- Approximate route length
- Known obstacles (road, rail, rivers, existing utilities)
- Contact person and phone / email
- If known: pipe / protective conduit material (e.g., PE)
- Any work restrictions (traffic, access for equipment) — what we must consider
Technical constraints
- Practical limits up to about 700 mm diameter, 25 m depth and 450 m per bore — depending on ground and geometry.
- Actual capability depends on soil, pipe material, diameter, access and permits.
- Every job is assessed individually — there is no one identical process for every site.
- For more complex routes, we may plan in stages depending on the object.
Equipment
FAQ
What is horizontal directional drilling?
A trenchless method that installs utilities through a steerable bore — often abbreviated HDD (HVU in Latvian).
What is trenchless technology?
Trenchless technology installs utilities with most of the route remaining underground — without a continuous open trench. Our primary method is horizontal directional drilling (HDD / HVU).
Is caurdure / HVU the same as HDD?
Yes. “Caurdure” is a common field term for the same technology, often referred to in projects as HVU or HDD.
What can you usually install with HDD?
Typically — pipes and protective conduits for water, sewer and gas, as well as electrical and telecom protective conduits where minimal surface impact matters.
How do you confirm if HDD is suitable for a site?
We assess route parameters (length, diameter, obstacles), access to entry/exit points and ground conditions. Based on that, we recommend a solution or an alternative approach.
Where in Latvia do you work?
We serve projects across Latvia; availability is reviewed from your route data.
Is the process identical on every job?
No. The typical sequence helps orientation, but soil, diameter and obstacles define the real approach.
How do I get a quote?
Use the quote form on the services page: location, route, diameter, obstacles and contacts.
Request an HDD / HVU quote
Share location and route data — we will prepare the next step and recommend the most suitable approach.
Go to quote form