top of page

Structural Stone Repairs London

Specialist Structural Stone Repairs for Historic, Heritage & Commercial Buildings

MGS Restoration Ltd provides expert structural stone repair services across London, helping property owners, architects, surveyors, engineers, and conservation professionals preserve historic stonework while ensuring long-term structural stability.

Natural stone structures can deteriorate over time due to settlement, movement, water ingress, corrosion of historic fixings, impact damage, and general ageing. Left untreated, small defects can develop into larger structural issues that threaten both the appearance and integrity of a building.

Our specialist team combines traditional stonemasonry knowledge with modern structural repair techniques to stabilise, repair, and conserve natural stone elements while retaining as much original material as possible.

We regularly undertake structural stone repairs to listed buildings, historic residences, schools, churches, cultural venues, commercial properties, and heritage assets throughout London and the South East.

Stone Staircase restoration london MGS (29).jpg
Marble Staircase.jpg

Our Structural Stone Repair Services

Every stone structure presents its own unique challenges. Before any works commence, we carefully assess the condition of the stonework, identify the underlying causes of movement or deterioration, and develop a repair strategy appropriate to both the building and material.

Our structural stone repair services include:

  • Crack stitching and reinforcement

  • Dog cramp repairs

  • Stainless steel reinforcement installations

  • Structural resin injection

  • Portland stone structural repairs

  • Stone replacement and indents

  • Cantilevered staircase repairs

  • Structural landing repairs

  • Masonry stabilisation

  • Historic stone conservation repairs

All works are carried out using conservation-sensitive methods designed to preserve the original fabric of the building wherever possible.

Crack Stitching Repairs

racks within stone structures often occur due to settlement, structural movement, thermal expansion, or historic alterations.

Where appropriate, MGS Restoration uses specialist crack stitching systems to stabilise damaged stonework and prevent further movement.

This process typically involves:

  • Opening and cleaning cracks

  • Installing stainless steel reinforcement bars

  • Securing bars with specialist anchor resins

  • Filling and colour-matching repairs

Crack stitching provides a discreet and effective solution that restores structural continuity while maintaining the appearance of the stonework.

​Portland Stone Cantilevered Staircase Structural Repairs – Queens Gate Terrace, (3).jpg
Portland Stone Staircase Structural Repairs – 65–69 Linden Gardens, Notting Hill Gate, Lon

Dog Cramp Repairs

Dog cramp repairs are a traditional yet highly effective method of stabilising fractured stone elements.

Commonly used in:

  • Portland stone staircases

  • Landings

  • Window cills

  • Architectural mouldings

  • Historic masonry

The process involves cutting carefully positioned slots across damaged areas before installing stainless steel reinforcement bars fixed with specialist resins.

Once completed, the stone can perform as a single structural element again while maintaining its original appearance.

Dog cramp repairs are frequently specified by structural engineers and conservation consultants on heritage projects.

Stainless Steel Reinforcement

Many historic stone structures benefit from concealed stainless steel reinforcement to improve stability without altering the appearance of the stone.

Our reinforcement methods include:

  • Threaded stainless steel bars

  • Concealed reinforcement rods

  • Mechanical fixings

  • Structural stitching systems

These techniques are commonly used for staircases, balustrades, stone landings, coping stones, façade elements, and architectural features.

All reinforcement systems are selected based on the specific structural requirements of each project.

​Portland Stone Cantilevered Staircase Structural Repairs – Queens Gate Terrace, (16).jpg
​Portland Stone Cantilevered Staircase Structural Repairs – Queens Gate Terrace, (6).jpg

Structural Resin Injection

Where cracks and fractures extend deep within natural stone, specialist structural resin injection can provide a highly effective repair solution.

Low-viscosity resins are introduced into the stonework where they penetrate and bond fractured sections together internally.

This method is particularly useful for:

  • Historic stone staircases

  • Cracked landings

  • Portland stone structures

  • Architectural stone elements

When used correctly, resin injection can restore strength and stability while preserving original stone fabric.

Portland Stone Repairs

Portland stone remains one of London's most iconic building materials and is commonly found on:

  • Historic townhouses

  • Listed buildings

  • Public buildings

  • Churches

  • Schools

  • Commercial properties

Over time, Portland stone can suffer from cracking, impact damage, movement, and deterioration of previous repairs.

MGS Restoration provides specialist Portland stone repair services including:

  • Structural repairs

  • Stone indents

  • Replacement sections

  • Reinforcement works

  • Colour-matched repairs

  • Architectural stone restoration

Our team regularly repairs both load-bearing and decorative Portland stone features throughout London.

Portland Stone Staircase Structural Repairs – 65–69 Linden Gardens, Notting Hill Gate, Lon
Portland Stone Staircase Structural Repairs – 65–69 Linden Gardens, Notting Hill Gate, Lon

Stone Replacement & Indent Repairs

Where stone elements are beyond repair, replacement sections may be required.

Our stonemasons carefully source matching materials and manufacture bespoke replacement pieces that integrate seamlessly into the existing structure.

Stone replacement services include:

  • Portland stone indents

  • Stair tread replacements

  • Coping stone replacements

  • Window cill replacements

  • Decorative moulding replacements

  • Architectural stone fabrication

Where possible, original stone is always retained and repaired before replacement is considered.

Cantilevered Staircase Repairs

Cantilevered stone staircases are among the most technically challenging structural stone repairs undertaken by MGS Restoration.

We regularly restore:

  • Portland stone staircases

  • Limestone staircases

  • Marble staircases

  • Historic cantilevered stair structures

Our repair methods may include:

  • Stainless steel reinforcement

  • Dog cramp repairs

  • Structural crack stitching

  • Landing stabilisation

  • Step rebuilding

  • Stone replacement

Many of our projects are undertaken in conjunction with structural engineers and conservation consultants.

Stone Staircase restoration london MGS (11)_edited.jpg
Linden Gardens Portland Staircase

Working with Architects & Structural Engineers

MGS Restoration frequently works as part of larger refurbishment and conservation teams.

We regularly collaborate with:

  • Architects

  • Structural engineers

  • Building surveyors

  • Conservation consultants

  • Main contractors

  • Heritage specialists

Our experience allows us to integrate specialist stone repair works within complex construction and conservation projects while maintaining detailed records, reporting, and quality control throughout.

Heritage & Listed Building Expertise

Structural repairs to historic stonework require careful consideration of both engineering requirements and conservation principles.

Our team has extensive experience working within:

  • Grade I Listed Buildings

  • Grade II Listed Buildings

  • Historic residential properties

  • Churches and places of worship

  • Schools and universities

  • Cultural institutions

  • Heritage commercial buildings

We understand the importance of retaining original material wherever possible and ensuring repairs remain sympathetic to the historic fabric of the building.

​Portland Stone Cantilevered Staircase Structural Repairs – Queens Gate Terrace, London
Stone Staircase restoration london MGS (51).jpg

Why Choose MGS Restoration?

Specialist Structural Repair Expertise

We combine traditional stonemasonry knowledge with modern structural repair methods.

Conservation-Led Approach

Our priority is always to preserve original stone wherever possible.

Proven Experience

We have successfully delivered structural stone repairs across some of London's most prestigious residential, commercial, and heritage buildings.

Comprehensive Project Documentation

All major projects can be supported with:

  • Condition reports

  • Repair specifications

  • Progress reporting

  • Photographic records

  • O&M documentation

Frequently Repaired Stone Types

We regularly undertake structural repairs to:

  • Portland Stone

  • Limestone

  • Marble

  • Granite

  • Sandstone

  • Terrazzo

  • Bath Stone

  • York Stone

Stone Staircase restoration london MGS (49).jpg

Structural Repair Examples

Gallery of Portland staircase repairs

Queens-Gate-Terrace-exterior.jpg

Contact Us for Stone Staircase Restoration in London

If your property requires specialist structural stone repairs, crack stitching, Portland stone restoration, or conservation works, our experienced team can help.

MGS Restoration Ltd provides professional structural stone repair services throughout London, working across residential, commercial, heritage, and listed buildings.

Contact us today to discuss your project or arrange a site inspection with one of our specialists.

Address

MGS Restoration ltd
167-169 Great Portland Street,
5th Floor,
London,
W1W 5PF

Phone

020 3005 2873

Email

Connect

  • LinkedIn
  • Instagram
  • Facebook
  • Whatsapp
  • LinkedIn
  • Instagram
  • Facebook
  • Whatsapp

©2017 by MGS Restoration Ltd. Registered Address - 167-169 Great Portland Street, 5th Floor, London, England, W1W 5PF

bottom of page