London Retaining Walls
Long terraced timber retaining wall viewed along its length on a graded urban backyard slope

Owner-led · London, Ontario · 8+ years

Retaining walls
built for clay,
frost and slopes.

Interlocking block, poured concrete, timber and natural stone walls across London and Southwestern Ontario. Every wall gets a compacted base, weeping tile and filter fabric. That is why ours stay straight.

  • Free written quotes
  • Permits and engineering handled
  • Repairs of walls others built

Get your free quote

Kyle replies within one business day and books a site visit.

Free written quote. No obligation. We reply within one business day.

London Retaining Walls

The retaining wall contractor London homeowners call when the wall has to hold

Kyle started London Retaining Walls after years of watching walls fail for the same three reasons: no compacted base, no drainage, and the wrong material for the load. Eight years and hundreds of walls later, the fix is still the same. Dig deeper than the frost line, put clear stone and weeping tile behind the wall, and compact the backfill in lifts.

We build residential and commercial walls from a two-course garden bed to engineered walls holding up a driveway, and we are one of the few crews in the area that will take on repairing a wall someone else built. Read more about us, or browse the project gallery.

8+

years building walls

7

wall types and services

12

towns served

The process

How a wall gets built when it is built to last

Most failed walls we replace were built on topsoil with no drainage. Our five steps are boring on purpose.

  1. Segmental block retaining wall with separated blocks under repair assessment01

    Site walk and honest assessment

    Kyle measures the grade change, checks where water goes today, looks at what the wall has to hold up, and tells you which materials make sense and which are a waste of money.

  2. Sweeping stacked-block garden retaining wall bordering a manicured lawn and raised flower bed at a farmhouse porch02

    Written quote and permit check

    A line-item quote within a day. If the wall is over 1 metre, or carries a driveway or structure, we flag the permit and engineering before you commit.

  3. Segmental concrete block retaining wall under construction below an old timber retaining wall03

    Excavation and compacted base

    We dig below the frost-affected zone, place and compact granular A in lifts, and set the first course dead level. Everything above depends on this.

  4. Close-up of a timber retaining wall showing a deadman anchor and perforated drain pipe with filter fabric04

    Drainage that actually drains

    Clear stone, perforated weeping tile to daylight, and filter fabric between soil and stone. On timber, deadman anchors every course. On tall block, geogrid layers.

  5. Weathered timber retaining wall curving along a backyard lawn and holding back a treed slope05

    Backfill, grading and clean-up

    Backfill compacted in layers, topsoil graded away from the wall, site raked and swept. You get a wall that looks finished and a yard you can use that afternoon.

Retaining wall repair

Six signs a wall is failing, and what is really causing it

  • Leaning or bulging outward

    Hydrostatic pressure from trapped water. The wall is being pushed, not pulled.

  • Blocks or timbers stepping apart

    Base has settled or frost has heaved it. Usually a base with no compaction.

  • Cracks that grow each spring

    Freeze-thaw working on a wall with no drainage stone behind it.

  • Soil washing through the face

    No filter fabric. Fines migrate, voids form, the wall drops.

  • Rotting timber at soil line

    Untreated or ground-contact-rated timber past its life, often 15 to 25 years.

  • Tilted fence or patio above it

    The wall has moved and taken the yard with it. Act before the next winter.

Collapsing segmental block retaining wall being assessed for repair at a commercial building
Overgrown timber and stone retaining wall in need of restoration behind a residential building
Weathered timber tie retaining wall topped with a trimmed hedge next to concrete garden steps

No other landscape contractor wanted to repair our retaining wall in Byron. This company stepped up and rebuilt our leaning wood retaining wall in three days. I recommend them.

Sandra R., Byron, London

Why homeowners call us

Small crew. Straight walls. No surprises.

8+ years of retaining walls across Middlesex, Elgin, Oxford and Brant counties, from a two-course garden bed to engineered walls holding up a driveway.

Large timber retaining wall being built with drainage gravel along a sloped yard
Owner on every site
Kyle quotes it, builds it and answers the phone. No sales rep, no subcontracted crew you have never met.
Drainage on every wall
Clear stone, weeping tile and filter fabric are in every quote, not an upsell. Water is what kills walls in Ontario.
Permits handled
We know which municipalities want a permit over 1 metre and when an engineer's stamp is needed. We manage it.
Built for clay and frost
Bases dug below the frost-affected zone and compacted in lifts. Geogrid on tall block, deadman anchors on timber.
Written, line-item quotes
Materials, labour, disposal and drainage broken out so you can compare properly.
Repairs welcome
Many contractors only want new builds. We assess and fix walls other people built.

Recent work

Straight from the crew's camera roll

All 155 project photos
Curved segmental block retaining wall creating a raised front-yard garden bed with fresh mulch and shrubs
Curved segmental block retaining wall creating a raised front-yard garden bed with fresh mulch and shrubs
Finished cedar plank retaining wall with concrete cap and armour stone base along a patio
Finished cedar plank retaining wall with concrete cap and armour stone base along a patio
Horizontal cedar plank retaining wall with concrete cap bordering a poolside patio
Horizontal cedar plank retaining wall with concrete cap bordering a poolside patio
Long wood timber retaining wall with central access steps in a terraced backyard
Long wood timber retaining wall with central access steps in a terraced backyard
Smooth parged poured concrete retaining wall with concrete steps in a landscaped backyard
Smooth parged poured concrete retaining wall with concrete steps in a landscaped backyard
Parged poured concrete retaining wall bordering a mulched garden bed beside a raised backyard deck
Parged poured concrete retaining wall bordering a mulched garden bed beside a raised backyard deck

Guides

Read this before you get three quotes

All guides

Retaining wall questions, answered plainly

How much does a retaining wall cost in London, Ontario?

Most residential walls land between $200 and $350 per linear foot installed for interlocking block, with timber usually coming in lower and poured concrete higher. Height, access for the excavator, soil conditions and drainage needs move the number. Every quote we give is written and broken out by line so you can see where the money goes.

Do I need a permit for a retaining wall in Ontario?

Generally yes once the wall is over 1 metre high, and often when it supports a driveway, structure or a surcharge from a neighbouring property. Rules vary by municipality. We check with the city or township for you and arrange engineering when it is required.

Which retaining wall material lasts longest?

Properly drained poured concrete and interlocking block walls routinely last 40 to 80 years in Ontario. Pressure-treated timber walls typically give 20 to 30 years. Drainage matters more than material: a block wall with no weeping tile can fail in 5 years while a well-built timber wall outlives it.

Can you repair a leaning retaining wall or does it need to be rebuilt?

Minor lean with a sound base can sometimes be corrected by relieving water pressure and adding drainage. A wall that has bulged, stepped apart or rotated at the base is almost always cheaper and safer to rebuild correctly. Kyle will tell you honestly which case you have during the free site visit.

How long does it take to build a retaining wall?

A typical residential wall of 30 to 60 feet is finished in two to four working days including excavation, base, drainage and backfill. Larger tiered systems and engineered walls run one to two weeks. We give you a schedule with the quote.

Where do you build retaining walls?

London and everywhere within about 40 minutes: St. Thomas, Woodstock, Strathroy, Dorchester, Aylmer, Ilderton, Komoka, Mount Brydges, Lucan, Delaware and Brantford, plus the rural properties in between.

Free site visit and written quote

Get a straight answer on your wall

Kyle walks every site personally, explains what is going on with the grade and drainage, and puts a written quote in your hands within a day.

Call nowFree quote