Patio and Pool Deck Concrete Lifting in Calgary
FOAMExperts provides patio and pool deck concrete lifting in Calgary for sunken, uneven, and unsupported slabs. We inject polyurethane foam beneath suitable concrete to fill accessible voids, restore support, and carefully raise low sections.
Before recommending work, we inspect the slab condition, drainage, landscaping, nearby structures, and available lifting space.
Outdoor Concrete
Restore Uneven Outdoor Concrete
Patios and pool decks can settle when the soil or base beneath them loses support. This may create uneven joints, standing water, rocking slabs, or gaps beside steps and pool edges.
Polyurethane concrete lifting may help improve:
- Uneven patio sections
- Pool deck trip hazards
- Water collecting on low slabs
- Concrete sloping toward the house
- Rocking or hollow panels
- Gaps beneath exposed slab edges
- Settled concrete beside steps
- Uneven transitions near doors
- Low sections beside drainage channels
- Unsupported concrete around outdoor features
The concrete must remain strong enough to lift. Existing cracks, stains, scaling, and surface wear may remain visible after the work.
Deck Problems
Patio and Pool Deck Problems We Assess
Uneven Concrete Joints
One slab may settle below the next, creating a raised edge that affects walking, furniture placement, and access around the outdoor area.
Water Pooling
Low sections may hold rainwater, snowmelt, or pool water. Standing water can make the area harder to use and may contribute to further erosion beneath the slabs.
Concrete Sloping Toward the House
A settled patio may direct water toward the foundation, basement entrance, or exterior wall. Lifting may improve the slope where enough slab movement is available.
Rocking or Moving Slabs
Concrete may move under foot traffic or furniture when support has been lost beneath part of the slab.
Gaps Beneath Slab Edges
Visible gaps may indicate soil loss, erosion, or a hidden void beneath the concrete.
Uneven Concrete Beside Steps and Doors
Settlement may create an awkward transition near patio doors, exterior steps, gates, or pool access points.
Low Concrete Around Pool Edges
Pool deck movement requires careful assessment. The lifting plan must consider the pool structure, coping, drains, pipes, and joints around the pool.
Concrete Lifting
Why Patios and Pool Decks Sink
Outdoor concrete usually sinks after the base or soil beneath it loses support.
Poor Soil Compaction
Soil that was not compacted correctly during construction may compress over time. The concrete above it can then settle.
Water Erosion and Washout
Rainwater, snowmelt, pool water, leaking pipes, and poor drainage can carry supporting material away from beneath the slab.
Freeze-Thaw Movement
Moisture beneath exterior concrete may freeze, expand, and later thaw. Repeated seasonal changes can weaken the base or create hidden gaps.
Backfilled Ground
Patios built beside homes, retaining walls, or pools may sit over disturbed or backfilled soil. This ground can settle differently from undisturbed soil.
Drainage Problems
Blocked drains, poor grading, leaking eavestroughs, or concentrated runoff may contribute to soil movement beneath the concrete.
Pool or Irrigation Leaks
Leaks can soften or wash away the material supporting nearby slabs. The water source may need to be repaired before concrete lifting begins.
Tree Roots and Landscaping
Roots, removed trees, garden work, and changes in soil moisture may affect the support around a patio or pool deck.
Work Process
How Patio and Pool Deck Lifting Works
Inspect the Outdoor Area
We review:
- Slab condition
- Cracks and joints
- Height differences
- Water flow
- Pool edges
- House walls
- Steps and doors
- Landscaping
- Drainage channels
- Utilities and pipes
- Access to the work area
Measure the Settlement
Measurements help identify the low sections and determine how much movement may be possible.
Plan the Injection Points
Small access holes are positioned according to the slab size, settlement pattern, and accessible voids beneath the concrete.
Inject Polyurethane Foam
Polyurethane material is injected beneath the slab in controlled amounts. The foam expands into accessible spaces and applies lifting pressure.
Monitor the Concrete
The technician watches the slab, joints, doors, steps, pool edges, and nearby structures during the lift.
Seal the Injection Holes
The injection points are sealed after lifting or stabilization is complete. The patch colour and texture may not perfectly match the existing concrete.
Complete a Final Inspection
The final slab elevation, transitions, drainage direction, visible cracks, and surrounding area are reviewed.
Can Patio Drainage Be Corrected?
- Current slab elevation
- House foundation height
- Door thresholds
- Nearby steps
- Existing drains
- Adjacent concrete
- Landscaping elevation
- Original patio design
- Available lifting space
- Existing cracks and joints
- Blocked or damaged drains
- Poor yard grading
- Downspout discharge
- Pool leaks
- Irrigation leaks
- Underground plumbing
- An unsuitable original slope
Concrete Lifting
Protecting Nearby Features
Patio and pool deck lifting requires careful planning around nearby property features.
House Walls and Foundations
The slab must not be lifted in a way that places damaging pressure against the house or changes drainage in the wrong direction.
Pool Edges and Coping
Pool deck lifting may affect coping, expansion joints, drains, pipes, and the pool structure. These areas must be inspected before injection.
Landscaping
Gardens, soil, plants, decorative stone, and irrigation systems should be considered when planning equipment access and injection points.
Steps and Entrances
Steps, thresholds, and patio doors may restrict how far a slab can be raised.
Drainage Channels
Existing drains and channels must remain functional after the work. Their height may limit the possible lift.
Fences and Gates
Concrete movement can affect fence posts, gates, and nearby structures.
Utility Lines and Pipes
Known gas lines, electrical services, irrigation pipes, pool lines, and drainage pipes should be identified before drilling.
Equipment and hoses should be positioned to reduce unnecessary disturbance. Access requirements are confirmed before the project is scheduled.
Can Cracked Patio or Pool Deck Concrete Be Lifted?
Some cracked patio and pool deck slabs may be lifted when the concrete sections remain strong enough to move.
Existing cracks may:
- Remain visible
- Close slightly
- Become wider
- Change alignment
- Move as separate sections are raised
Lifting does not restore the surface to a new condition. Crack or joint sealing may be considered after the slab has been stabilized.
Severely broken, deteriorated, or unstable concrete may require replacement.
Can Cracked Concrete Be Lifted?
Patio and Pool Deck Lifting vs Replacement
Concrete lifting and replacement suit different slab conditions.
Consideration | Concrete lifting | Concrete replacement |
Existing concrete | Keeps suitable slabs | Removes the old concrete |
Demolition | Usually limited | Required |
Surface appearance | Existing finish remains | New concrete finish |
Existing cracks | Usually remain visible | Removed with old slab |
Landscaping impact | Often lower | May require wider access |
Pool-area disruption | Often reduced | May affect coping and nearby features |
Best suited to | Settled but sound slabs | Broken or deteriorated concrete |
Concrete lifting may be suitable when settlement is the main problem and the slabs remain structurally sound.
Replacement may be better when:
- The concrete is severely broken
- Surface deterioration is extensive
- Reinforcement has failed
- The slabs are too weak or thin
- Pool repairs require excavation
- Underground pipes need replacement
- The required elevation cannot be reached safely
- A completely new finish is wanted
When Can the Area Be Used Again?
Return-to-use time depends on:
- Polyurethane product
- Amount of foam used
- Slab condition
- Expected foot traffic
- Furniture or equipment loads
- Pool-area safety requirements
- Additional crack or joint work
FOAMExperts provides guidance based on the material and completed application. Do not use the area until the technician confirms it is ready.
How Long Does Patio and Pool Deck Lifting Last?
There is no single lifespan that applies to every project.
Long-term performance depends on:
- Cause of settlement
- Drainage
- Soil movement
- Slab condition
- Foam specification
- Pool or irrigation leaks
- Freeze-thaw cycles
- Landscaping changes
- Ongoing maintenance
The concrete may move again if erosion, leaks, weak soil, or another underlying cause continues.
Patio and Pool Deck Lifting Cost Factors
The cost of lifting outdoor concrete in Calgary depends on:
- Number and size of slabs
- Amount of settlement
- Void size
- Foam volume
- Number of injection points
- Slab thickness
- Access to the work area
- Pool-edge restrictions
- Landscaping
- Drainage conditions
- Existing cracks
- Utility or pipe locations
- Additional sealing work
- Project minimum charges
An accurate quote requires photographs, measurements, or an on-site assessment.
FAQ
Patio and Pool Deck Lifting FAQs
Can every sunken patio or pool deck be lifted?
No. The slabs must remain strong enough to move. Severely broken, deteriorated, or structurally affected concrete may require replacement.
Can concrete lifting improve water pooling?
It may improve water flow when settlement caused the low area and enough slab movement is available. Separate drainage or leak repairs may still be needed.
Can pool deck concrete be lifted safely?
Some pool deck slabs may be suitable for controlled lifting. The pool structure, coping, drains, pipes, joints, and nearby features must first be inspected.
Will the injection holes remain visible?
The holes are sealed after the work. However, the repair colour and texture may not perfectly match the existing concrete.
Will lifting remove existing cracks?
No. Existing cracks normally remain visible. Their width or alignment may change as separate slab sections are raised.
How long does patio or pool deck lifting take?
Project time depends on the number of slabs, settlement, access, pool-area restrictions, and injection requirements.
Can furniture be left on the patio?
The work area normally needs to be cleared before the project. FOAMExperts will confirm which furniture, planters, covers, or other items must be moved.
Will nearby landscaping be damaged?
The work usually requires less excavation than replacement, but access and injection planning may affect the surrounding area. Landscaping requirements should be discussed during the assessment.
Is lifting cheaper than replacing a patio or pool deck?
It may cost less when the existing slabs remain suitable. The correct choice depends on slab condition, appearance, drainage, access, and nearby pool features.
Request a Patio or Pool Deck Assessment
- Property address
- Patio or pool deck size
- Number of concrete slabs
- Wide photographs
- Close-ups of uneven joints
- Pool-edge photographs
- Door and step transitions
- Visible gaps
- Drain locations
- Water-flow direction
- Known pool or irrigation leaks
- Landscaping and access restrictions