# London Retaining Walls > Owner-led retaining wall contractor based in London, Ontario, Canada. Builds interlocking block (Permacon, Allan Block, Unilock), poured concrete, pressure-treated timber, natural stone and armour stone retaining walls, terraced hillside systems, and repairs or rebuilds failing walls. Every wall includes a compacted granular base, clear drainage stone, perforated weeping tile and filter fabric; geogrid on tall block walls and deadman anchors on timber. Handles Ontario building permits and engineering for walls over 1 metre. Free written quotes. Phone 519-914-1908. Hours Monday to Saturday, 7 AM to 6 PM. ## Service area London, Ontario; St. Thomas, Ontario; Woodstock, Ontario; Strathroy, Ontario; Dorchester, Ontario; Aylmer, Ontario; Ilderton, Ontario; Komoka, Ontario; Mount Brydges, Ontario; Lucan, Ontario; Delaware, Ontario; Brantford, Ontario ## Typical pricing (2026, installed) - Interlocking block walls: about $200 to $350 per linear foot depending on height and product - Timber walls: usually the lowest-cost option - Poured concrete walls: custom quoted, typically the highest cost - Repairs and assessments: quoted free after a site visit ## Services - [Interlocking Block Retaining Walls](https://londonretainingwalls.ca/block-retaining-walls): Interlocking block retaining walls using Permacon, Allan Block, Unilock and Oaks. Freeze-thaw resistant, code compliant, built across Southwestern Ontario. - [Poured Concrete Retaining Walls](https://londonretainingwalls.ca/concrete-retaining-walls): Poured concrete retaining walls for tall or heavily loaded sites in London and Southwestern Ontario. Engineered, formed and finished for 50 plus year service. - [Natural Stone and Armour Stone Retaining Walls](https://londonretainingwalls.ca/natural-stone-retaining-walls): Natural stone and armour stone retaining walls in London and Southwestern Ontario. Rustic, gravity-built walls suited to rural, riverfront and estate lots. - [Retaining Wall Installation in London and Southwestern Ontario](https://londonretainingwalls.ca/retaining-wall-installation): Retaining wall installation across Southwestern Ontario, from site assessment to drainage and finishing. Free written quotes, Ontario Building Code compliant. - [Retaining Wall Repair](https://londonretainingwalls.ca/retaining-wall-repair): Retaining wall repair for bowing, cracking and drainage failure across Southwestern Ontario. Free assessment finds the root cause before we fix anything. - [Terraced Retaining Wall Systems](https://londonretainingwalls.ca/terraced-retaining-walls): Terraced retaining wall systems turn steep London area slopes into usable, walkable yard space with multiple shorter walls instead of one tall structure. - [Wood and Timber Retaining Walls](https://londonretainingwalls.ca/wood-and-timber-retaining-walls): Pressure-treated and hardwood timber retaining walls for gardens and low grade changes in London and Southwestern Ontario. Natural look, deadman anchored. ## Service area pages - [Retaining Wall Contractor in Aylmer, Ontario](https://londonretainingwalls.ca/aylmer-retaining-wall-contractor): Aylmer, ON retaining wall contractor for farm properties and residential lots. Block, concrete and timber walls with proper drainage. Free quotes. - [Retaining Wall Contractor in Brantford, Ontario](https://londonretainingwalls.ca/brantford-retaining-wall-contractor): Brantford retaining wall contractor for Grand River valley slopes. Block, concrete and armour stone walls with proper drainage. Free quotes. - [Retaining Wall Contractor in Delaware, Ontario](https://londonretainingwalls.ca/delaware-retaining-wall-contractor): Delaware, ON retaining wall builder for Thames River flat properties and rural lots. Block, concrete and armour stone walls. Free written quotes. - [Retaining Wall Contractor in Dorchester, Ontario](https://londonretainingwalls.ca/dorchester-retaining-wall-contractor): Dorchester, ON retaining wall builder serving Thames Centre. Block, concrete and timber walls for river lots and new subdivisions. Free quotes today. - [Retaining Wall Contractor in Ilderton, Ontario](https://londonretainingwalls.ca/ilderton-retaining-wall-contractor): Ilderton retaining wall contractor for larger executive lots north of London. Block, concrete and timber walls with proper drainage. Free quotes. - [Retaining Wall Contractor in Komoka, Ontario](https://londonretainingwalls.ca/komoka-retaining-wall-contractor): Komoka retaining wall builder for Thames River valley properties near Komoka Provincial Park. Block, concrete and timber walls, free written quotes. - [Retaining Wall Contractor in London, Ontario](https://londonretainingwalls.ca/london-retaining-wall-contractor): London retaining wall contractor with 8+ years building block, concrete and timber walls on London's clay soil. Free written quotes within 24 hours. - [Retaining Wall Contractor in Lucan, Ontario](https://londonretainingwalls.ca/lucan-retaining-wall-contractor): Lucan retaining wall contractor for rural properties and in-town lots in Lucan Biddulph. Block, concrete and timber walls, free written quotes. - [Retaining Wall Contractor in Mount Brydges, Ontario](https://londonretainingwalls.ca/mount-brydges-retaining-wall-contractor): Mount Brydges retaining wall builder for newer subdivisions and rural properties. Block, concrete and timber walls with proper drainage. Free quotes. - [Retaining Wall Contractor in St. Thomas, Ontario](https://londonretainingwalls.ca/st-thomas-retaining-wall-contractor): St. Thomas retaining wall builder handling Kettle Creek valley slopes and clay lots. Block, concrete and timber walls, free quotes in 24 hours. - [Retaining Wall Contractor in Strathroy, Ontario](https://londonretainingwalls.ca/strathroy-retaining-wall-contractor): Strathroy-Caradoc retaining wall builder for Sydenham River lots and Caradoc Sands properties. Block, concrete and timber walls, free written quotes. - [Retaining Wall Contractor in Woodstock, Ontario](https://londonretainingwalls.ca/woodstock-retaining-wall-contractor): Woodstock retaining wall contractor for Sally Creek and Pittock Lake area properties. Block, concrete and timber walls, free 24-hour quotes. ## Service by town - [Block Retaining Walls in London, Ontario](https://londonretainingwalls.ca/block-retaining-walls/london) - [Block Retaining Walls in St. Thomas, Ontario](https://londonretainingwalls.ca/block-retaining-walls/st-thomas) - [Block Retaining Walls in Strathroy, Ontario](https://londonretainingwalls.ca/block-retaining-walls/strathroy) - [Block Retaining Walls in Woodstock, Ontario](https://londonretainingwalls.ca/block-retaining-walls/woodstock) - [Concrete Retaining Walls in London, Ontario](https://londonretainingwalls.ca/concrete-retaining-walls/london) - [Concrete Retaining Walls in St. Thomas, Ontario](https://londonretainingwalls.ca/concrete-retaining-walls/st-thomas) - [Concrete Retaining Walls in Strathroy, Ontario](https://londonretainingwalls.ca/concrete-retaining-walls/strathroy) - [Concrete Retaining Walls in Woodstock, Ontario](https://londonretainingwalls.ca/concrete-retaining-walls/woodstock) - [Natural Stone Retaining Walls in London, Ontario](https://londonretainingwalls.ca/natural-stone-retaining-walls/london) - [Natural Stone Retaining Walls in St. Thomas, Ontario](https://londonretainingwalls.ca/natural-stone-retaining-walls/st-thomas) - [Natural Stone Retaining Walls in Strathroy, Ontario](https://londonretainingwalls.ca/natural-stone-retaining-walls/strathroy) - [Natural Stone Retaining Walls in Woodstock, Ontario](https://londonretainingwalls.ca/natural-stone-retaining-walls/woodstock) - [Retaining Wall Installation in London, Ontario](https://londonretainingwalls.ca/retaining-wall-installation/london) - [Retaining Wall Installation in St. Thomas, Ontario](https://londonretainingwalls.ca/retaining-wall-installation/st-thomas) - [Retaining Wall Installation in Strathroy, Ontario](https://londonretainingwalls.ca/retaining-wall-installation/strathroy) - [Retaining Wall Installation in Woodstock, Ontario](https://londonretainingwalls.ca/retaining-wall-installation/woodstock) - [Retaining Wall Repair in London, Ontario](https://londonretainingwalls.ca/retaining-wall-repair/london) - [Retaining Wall Repair in St. Thomas, Ontario](https://londonretainingwalls.ca/retaining-wall-repair/st-thomas) - [Retaining Wall Repair in Strathroy, Ontario](https://londonretainingwalls.ca/retaining-wall-repair/strathroy) - [Retaining Wall Repair in Woodstock, Ontario](https://londonretainingwalls.ca/retaining-wall-repair/woodstock) - [Terraced Retaining Walls in London, Ontario](https://londonretainingwalls.ca/terraced-retaining-walls/london) - [Terraced Retaining Walls in St. Thomas, Ontario](https://londonretainingwalls.ca/terraced-retaining-walls/st-thomas) - [Terraced Retaining Walls in Strathroy, Ontario](https://londonretainingwalls.ca/terraced-retaining-walls/strathroy) - [Terraced Retaining Walls in Woodstock, Ontario](https://londonretainingwalls.ca/terraced-retaining-walls/woodstock) - [Wood & Timber Retaining Walls in London, Ontario](https://londonretainingwalls.ca/wood-and-timber-retaining-walls/london) - [Wood & Timber Retaining Walls in St. Thomas, Ontario](https://londonretainingwalls.ca/wood-and-timber-retaining-walls/st-thomas) - [Wood & Timber Retaining Walls in Strathroy, Ontario](https://londonretainingwalls.ca/wood-and-timber-retaining-walls/strathroy) - [Wood & Timber Retaining Walls in Woodstock, Ontario](https://londonretainingwalls.ca/wood-and-timber-retaining-walls/woodstock) ## Guides - [Building a Retaining Wall on Clay Soil](https://londonretainingwalls.ca/building-a-retaining-wall-on-clay-soil): How heavy clay soil around London changes retaining wall base, drainage and material decisions, and what happens when a wall is built without those adjustments. - [Do Retaining Walls Add Property Value](https://londonretainingwalls.ca/retaining-walls-and-property-value): How a properly built retaining wall affects Ontario resale value, usable yard space and buyer confidence, and how a failing wall shows up in an inspection. - [Do You Need a Permit for a Retaining Wall in Ontario](https://londonretainingwalls.ca/do-i-need-a-permit-for-a-retaining-wall-in-ontario): When Ontario retaining walls require a building permit and engineering, how the 1 metre threshold is measured, and how the permit process runs. - [How Long Do Retaining Walls Last, By Material](https://londonretainingwalls.ca/how-long-do-retaining-walls-last): Lifespan ranges for concrete, block and timber retaining walls, plus the drainage and base factors that make or break those numbers. - [How Retaining Wall Drainage Actually Works](https://londonretainingwalls.ca/retaining-wall-drainage-explained): A breakdown of the drainage stone, weeping tile and filter fabric behind every wall we build, and why skipping any layer shortens a wall's life. - [How to Choose the Right Retaining Wall Material](https://londonretainingwalls.ca/how-to-choose-retaining-wall-material): A practical walkthrough of block, concrete, timber and natural stone retaining walls, matched to height, soil and budget for Ontario properties. - [How to Stain a Wooden Retaining Wall the Right Way](https://londonretainingwalls.ca/tips-on-how-to-stain-your-wooden-retaining-wall): How to clean, dry, choose stain for and apply protective coating to a wood retaining wall, plus how often Ontario weather requires re-staining. - [Retaining Wall Cost in Ontario: 2026 Pricing Guide](https://londonretainingwalls.ca/retaining-wall-cost-guide-ontario): Current 2026 Ontario retaining wall prices per linear foot by material, plus the height, access, drainage and permit factors that move the number. - [Retaining Wall Height Limits and When Engineering Kicks In](https://londonretainingwalls.ca/retaining-wall-height-limits-and-engineering): How Ontario retaining wall design, permits and engineering requirements scale with height, and how tiered walls change the calculation. - [Retaining Wall Maintenance: A Seasonal Checklist](https://londonretainingwalls.ca/retaining-wall-maintenance-tips): A twice-yearly retaining wall maintenance checklist covering drainage outlets, movement, vegetation and when a problem needs a professional. - [Signs Your Retaining Wall Is Failing](https://londonretainingwalls.ca/signs-your-retaining-wall-is-failing): How to read the warning signs of a failing retaining wall, from cosmetic cracking to urgent bowing, and what each one means for your timeline. - [Timber vs Block Retaining Walls: Which Fits Your Yard](https://londonretainingwalls.ca/timber-vs-block-retaining-walls): A side by side comparison of timber and interlocking block retaining walls on upfront cost, lifespan, maintenance, appearance and height limits. ## Other pages - [Project gallery](https://londonretainingwalls.ca/gallery) - [About](https://londonretainingwalls.ca/about-us) - [Contact and free quote](https://londonretainingwalls.ca/contact-us)