About Us

To restore and preserve the structures people depend on by transferring their loads to reliable soil and rock, with engineering discipline, careful installation and records that prove the work.

Who We Are

About Our Company

Lektus Samhällsbyggnad i Sundsvall is a foundation contractor specializing in underpinning, structural stabilization and deep foundation retrofit. We install helical piers, push piers, micropiles and grouted systems that transfer load from distressed footings to stable soil or bedrock, working from design drawings prepared by licensed engineers. Our crews are trained in torque-correlated helical installation, hydraulic push pier driving to refusal, drilling and grouting micropiles, and the lift-and-level procedures that follow. Every project includes documented installation records, so engineers and owners can verify depth, torque, capacity and final load.

Serving and neighboring regions, Lektus Samhällsbyggnad i Sundsvall works on residential, commercial, industrial and historic structures where soil movement, poor fill, expansive clay, erosion or nearby excavation has compromised the foundation. We perform our own installations rather than subcontracting the critical work, and we take the time to understand why the structure moved before proposing a fix. Our goal is lasting stability: addressing the cause, installing proven systems and leaving the building safer, level and ready for use.

Core Capabilities

Load transfer brackets are installed to the manufacturer's specification.
Low-headroom installations use equipment rated for the restricted conditions.
Repair designs are prepared or reviewed by a licensed structural engineer.
Pier depth and termination in competent material are documented per location.
Settlement cause is investigated including drainage, soils and loading.
Lifting is monitored with levels and is halted if distress is observed.

Compliance

Standards & Credentials

Helical Pile Installer Training Programs
Deep Foundations Institute Member
Structural Engineer Coordinated Designs
OSHA Excavation & Trenching Competency
Confined Space Entry Training
Fully Insured Foundation Contractor

Repair designs are engineer-backed, not taken from a brochure.

Installation records kept for every single pier driven

Helical Pile Installer Training Programs
Deep Foundations Institute Member
Structural Engineer Coordinated Designs
OSHA Excavation & Trenching Competency
Confined Space Entry Training

Track Record

By The Numbers

4,000+Piers & Micropiles Installed

100%Elements Logged & Verified

20+Years Of Foundation Work

3 ftMinimum Headroom Capability

Our Mission

To treat every foundation problem as a diagnosis first and a repair second, so the solution matches the cause and the building stays stable for decades.

Sectors

Who We Serve

Historic preservation and industrial clients need methods suited to sensitive structures.

Structural Engineers
General Contractors
Property Owners
Commercial Developers
Municipal Building Departments
Industrial Facility Managers
Historic Preservation Teams
Homebuilders

Client Feedback

What Clients Say

They explained why the building moved, not just how to prop it up. The piers were logged one by one, the lift was gradual, and the readings afterward gave our engineer exactly the confirmation she wanted.

H. LindqvistOwner, Commercial Property

Our neighbor was nervous about the excavation next to their wall. The underpinning sequence and monitoring plan kept everyone calm, and we never saw movement beyond the limits set in the design.

G. PetrenkoDevelopment Manager, Residential Builder

They got micropiles into a basement with barely any headroom and finished ahead of the plant outage. The paperwork was clean and accepted by our engineer without comments.

B. AchterbergFacilities Engineer, Manufacturing Client

Seeing Cracks Or Settlement In Your Building?

Request an evaluation and Lektus Samhällsbyggnad i Sundsvall will review the movement, coordinate with your engineer and outline a stabilization approach.

Request Evaluation +46104986300

Services

Every project begins with geotechnical data and engineered design, so pier depths, spacing and capacities are based on soil conditions and structure loads rather than guesswork or rule-of-thumb installations.

Our Advantages

Why Clients Choose Us

Root Cause Thinking

We examine drainage, soil moisture, utilities and original footing design, because stabilization fails when the cause of movement remains.

Installation Records For Every Pier

Depth, torque, final driving pressure and location are logged for each element, giving engineers and owners a verifiable record of what is under the building.

Lift And Level Experience

Controlled hydraulic lifting restores elevation gradually, protecting finishes and plumbing, with monitoring so movement stops where the engineer specifies.

Low-Headroom Capability

Compact rigs and hand-held equipment get deep foundations into basements, crawlspaces and tight alleys where large piling rigs cannot operate.

Minimal Disruption

Many installations require no heavy demolition and little spoil removal, which keeps occupied buildings in use and reduces restoration costs afterward.

Engineer-Backed Designs

We work from geotechnical data and stamped drawings, with capacities verified by installation torque, driving force or load testing as the design requires.

Records For Every Pier

Installation torque, depth and termination are logged per location, which gives your engineer the verification data a sign-off actually requires.

Disruption Kept Down

Access routes, excavation extents and reinstatement are agreed in advance, so the repair does not leave you with a landscaping project as well.

Low-Headroom Capability

Equipment rated for basements and crawl spaces means interior underpinning is possible without removing a floor or the structure above it.

Our Services

What We Do

Step 01

Helical Pier Installation

Steel shafts with helical bearing plates are torqued into the ground until the installation torque correlates with the required capacity, then connected to the foundation with brackets or new cast-in-place caps. Helical piers install with minimal vibration, can be loaded immediately and work well for lighter structures, additions and tension applications.

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Step 02

Retaining Wall & Foundation Wall Repair

Anchoring, bracing and rebuilding of bowed, tilted or cracked foundation and retaining walls. Wall anchors, helical tiebacks and carbon fiber or steel reinforcement resist lateral soil pressure and stop progressive movement.

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Step 03

Slab Stabilization & Void Filling

Polyurethane foam injection and low-mobility grout to fill voids, densify loose soils and lift settled slabs, floors and pavements. Injection points are laid out from survey data, and elevation is monitored with laser levels during the process.

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Step 04

Monitoring & Structural Assessment

Crack gauges, elevation surveys, tiltmeters and manometer readings that document movement before, during and after work. Monitoring informs design, verifies results and gives owners and neighbors confidence that the structure is stable.

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Step 05

Pressure Grouting & Soil Improvement

Compaction grouting, permeation grouting and chemical stabilization that improve load-bearing capacity beneath existing structures. Grout programs are designed by engineers and monitored for pressure, volume and heave to prevent damage during injection.

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Step 06

Push Pier Underpinning

Steel piers hydraulically driven through weak soils using the structure weight as reaction until they reach bearing strata or refusal. Push piers verify capacity during installation and can often lift settled footings back toward original elevation, making them a strong choice for heavier buildings.

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Step 07

Traditional Pit Underpinning

Sequenced excavation and concrete placement beneath existing footings in alternating pits to deepen foundations for new basements, adjacent construction or bearing correction. Shoring, needling and monitoring protect the structure while each pit is dug, formed, poured and dry-packed.

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Step 08

Micropile Installation

Small-diameter, high-capacity drilled and grouted piles installed through fill, rubble or rock using compact rigs. Micropiles suit low-headroom spaces, restricted access, karst and variable soils, and can carry both compression and tension loads with steel casing and high-strength reinforcement.

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Compliance

Standards & Credentials

Helical Pile Installer Training Programs
Deep Foundations Institute Member
Structural Engineer Coordinated Designs
OSHA Excavation & Trenching Competency
Confined Space Entry Training
Fully Insured Foundation Contractor

Repair designs are engineer-backed, not taken from a brochure.

Our Process

How We Work

1
Evaluation & Soil Data
We inspect cracking and movement patterns, review geotechnical reports or borings, document elevations and work with your engineer to determine why the foundation moved.
2
Design & Permitting
The underpinning system, pier locations, required capacity, lift targets and monitoring plan are specified in drawings. We assist with permits and utility locates before mobilizing.
3
Installation & Verification
Piers or micropiles are installed to depth and capacity, each element is recorded, and brackets or caps are connected to the foundation under controlled loading.
4
Lift, Monitoring & Restoration
Where specified, the structure is lifted and leveled, results are monitored, excavations are backfilled and compacted, and records are delivered for your files.

Seeing Cracks Or Settlement In Your Building?

Request an evaluation and Lektus Samhällsbyggnad i Sundsvall will review the movement, coordinate with your engineer and outline a stabilization approach.

Request Evaluation +46104986300

Projects

Excavating next door or adding a basement level? Our underpinning crews protect adjacent foundations with sequenced pit work, shoring and monitoring that keep neighboring structures stable during construction.

Projects & Case Studies

Selected Work

Retaining Structures

Retaining Wall Anchor And Pier Retrofit

A leaning retaining wall stabilized using helical tiebacks and reinforced footing piers. Drainage correction behind the wall reduced hydrostatic pressure and helped prevent recurrence of the movement.

Scope of Work: Foundation Underpinning
Category: Retaining Structures

Industrial Facilities

Industrial Floor And Equipment Foundation Support

Micropiles installed through a plant floor to support heavy equipment after void formation and soil loss beneath the slab. Low-headroom rigs worked between production shifts, avoiding extended shutdowns.

Scope of Work: Foundation Underpinning
Category: Industrial Facilities

Structural Stabilization

Commercial Building Settlement Correction

Push piers driven to bearing strata beneath a settling masonry building with continuous monitoring during the lift. The structure was brought back toward level, and cracked finishes were repaired once movement had stopped.

Scope of Work: Foundation Underpinning
Category: Structural Stabilization

Basement Construction

Basement Deepening Underpinning

Sequenced pit underpinning beneath an existing foundation to add headroom and a lower level. Shoring and settlement monitoring protected adjoining structures, and each pit was inspected before concrete placement.

Scope of Work: Foundation Underpinning
Category: Basement Construction

Our Process

How We Work

1
Evaluation & Soil Data
We inspect cracking and movement patterns, review geotechnical reports or borings, document elevations and work with your engineer to determine why the foundation moved.
2
Design & Permitting
The underpinning system, pier locations, required capacity, lift targets and monitoring plan are specified in drawings. We assist with permits and utility locates before mobilizing.
3
Installation & Verification
Piers or micropiles are installed to depth and capacity, each element is recorded, and brackets or caps are connected to the foundation under controlled loading.
4
Lift, Monitoring & Restoration
Where specified, the structure is lifted and leveled, results are monitored, excavations are backfilled and compacted, and records are delivered for your files.

Track Record

By The Numbers

4,000+Piers & Micropiles Installed

100%Elements Logged & Verified

20+Years Of Foundation Work

3 ftMinimum Headroom Capability

Seeing Cracks Or Settlement In Your Building?

Request an evaluation and Lektus Samhällsbyggnad i Sundsvall will review the movement, coordinate with your engineer and outline a stabilization approach.

Request Evaluation +46104986300

FAQ

Site assessments are usually arranged within one week.

Questions & Answers

Frequently Asked Questions

Underpinning generally involves localized excavations around the foundation and compact equipment. We protect landscaping where possible, backfill and compact the work areas, and plan access to minimize disruption to occupants and neighbors.

We establish baseline elevations and crack gauges before work, then monitor during and after installation. Engineers compare readings over time to confirm stability. If movement continues, we investigate drainage, soil conditions or load changes that the repair did not address.

For structural underpinning, yes. A licensed engineer determines the cause, specifies the system and required capacity, and often reviews installation records. We work with your engineer or can coordinate with qualified firms we trust.

In many cases partial or full recovery is possible using push piers or helical piers with hydraulic lift. The extent depends on structure stiffness and condition. Lifting is done gradually and monitored so finishes, plumbing and framing are not overstressed.

Micropiles work where access is tight, headroom is low, soils are variable or contain obstructions, or high capacities are needed in a small footprint. They are drilled and grouted, so they can penetrate fill, cobbles and rock that would stop other pier types.

Helical piers are screwed into the soil with torque and are verified by installation torque. Push piers are hydraulically driven using the structure weight as reaction. Helical piers suit lighter loads and tension applications, while push piers are often used for heavier structures.

Our Advantages