Transforming a Traditional Stone Property with Expert Structural Building Work
Every building project requires careful planning, precision engineering and exceptional craftsmanship, particularly when working on traditional stone-built properties. At Lees Builders Ltd, we specialise in structural alterations, home renovations and sympathetic building work that enhances existing properties while preserving their original character.
Our latest project involved the careful enlargement of an existing window opening to create a much larger glazed opening, allowing significantly more natural light into the property while maintaining the beautiful traditional stone façade.
Throughout every stage of the project, our experienced builders worked meticulously to ensure the structural integrity of the building was maintained while achieving a seamless finish that blends perfectly with the original stonework.

Project Overview
The client wanted to replace an existing small window with a much larger opening to create a brighter, more open internal living space.
As this involved removing part of a load-bearing stone wall, extensive structural planning and expert workmanship were essential.
The completed works included:
- Careful structural wall alteration
- Temporary structural support installation
- Masonry removal
- Installation of new blockwork supports
- Installation of a structural steel beam (RSJ)
- Bespoke natural stone rebuilding
- Stone matching and restoration
- Preparation for new glazing installation
- Finishing works to blend seamlessly with the existing property
Careful Planning Before Construction Began
Before any masonry was removed, the project was carefully planned to ensure both the safety of the building and the quality of the finished result.
The existing stone property required sympathetic construction techniques that would preserve its character while allowing modern improvements to be incorporated.
The Lees Builders team carefully assessed:
- Existing structural loads
- Wall construction
- Beam requirements
- Temporary support locations
- Stone matching
- Building regulation compliance
Planning every stage before work commenced ensured the project progressed safely and efficiently.
Installing Temporary Structural Supports
One of the most critical stages involved supporting the existing masonry above the proposed opening.
Heavy-duty adjustable Acrow props and strongboys were installed across the opening to safely support the building while the original masonry was removed.
This temporary support system ensured:
- Complete structural stability
- Safe removal of masonry
- Protection of surrounding stonework
- Safe installation of the new steel beam
Every support was positioned with precision before construction began.

Careful Removal of Existing Masonry
The original stone wall was carefully dismantled section by section.
Unlike modern brickwork, traditional stone construction requires patience and experience to minimise disturbance to the surrounding structure.
Lees Builders carefully removed the existing stonework while preserving as much of the original material as possible for reuse later in the project.
This approach helps maintain the property’s authentic appearance once construction is complete.
Installation of the Structural Steel Beam
Once the opening had been fully prepared, a structural steel beam (RSJ) was installed.
The steel beam now permanently carries the structural load from the upper masonry, allowing the enlarged opening to safely accommodate new glazing.
Installing structural steel requires:
- Accurate measurements
- Proper bearing points
- Building Regulation compliance
- Precision installation
- Structural integrity testing
This stage is one of the most important aspects of any structural alteration project.

Rebuilding the Stonework
Following installation of the structural beam, the surrounding stonework was carefully rebuilt.
This is where the craftsmanship of Lees Builders truly stands out.
Rather than creating obvious new sections, the team painstakingly matched the existing stone courses, textures and mortar joints to produce a finish that blends naturally into the original property.
The result is a sympathetic restoration that appears as though it has always been part of the building.
Preparing the New Opening
With the structural work completed, attention turned to preparing the enlarged opening for the installation of new glazing.
The finished masonry provides:
- Perfect structural support
- Accurate opening dimensions
- Improved aesthetics
- Greater natural light
- Enhanced views
- Increased property value
The transformation already demonstrates how dramatically natural light can improve both the internal and external appearance of a property.

Traditional Craftsmanship Meets Modern Construction
Working on traditional stone properties requires considerably more skill than modern masonry construction.
Lees Builders combine traditional building techniques with modern engineering methods to ensure every project meets today’s Building Regulations while respecting the original architecture.
This combination allows homeowners to modernise their homes without compromising character or structural integrity.

Why Choose Lees Builders Ltd?
Our clients trust us because we deliver quality workmanship on every project, no matter the size.
Our services include:
- Structural alterations
- Home extensions
- Property renovations
- Steel beam installations (RSJs)
- New builds
- Groundworks
- Roofing
- Bespoke joinery
- Bathrooms and wet rooms
- Professional decorating
- Brickwork and stonework restoration
Every project is completed with careful attention to detail, excellent communication and the highest standards of workmanship.
Looking to Transform Your Property?
Whether you’re planning to create an open-plan living area, enlarge existing windows, remove load-bearing walls or undertake a complete property renovation, Lees Builders Ltd have the experience and expertise to deliver exceptional results.
We proudly work throughout:
- Weston-super-Mare
- Bristol
- Clevedon
- Portishead
- Nailsea
- Yatton
- Congresbury
- North Somerset
- Surrounding areas
Contact Lees Builders Ltd Today
Thinking about a structural alteration or renovation project?
Get in touch with our experienced team for professional advice and a free, no-obligation quotation.
Lees Builders Ltd
📧 info@lees-builders.co.uk
☎ Office: 01934 525424
📱 Mobile: 07798 910639
🌍 https://lees-builders.co.uk
