Unlike modern structures, historic buildings were not designed to meet today’s stringent standards of safety and resilience. In earlier times, civil engineering as a practice was far less developed, and many houses were constructed without any formal structural design at all. Even the building regulations of the past permitted methods that would now be considered unsafe or high-risk.
As a result, it is common to see historic buildings displaying signs of fatigue after many decades of use. Cracks in masonry walls, bowing of timber beams, foundation settlement, and roof spread are all typical issues that arise. When left unchecked, these problems can compromise the safety of occupants and the long-term survival of the building itself.
Because many historic structures are listed, preserving their original character is just as important as addressing their weaknesses. Standard repair approaches often cannot be used, since they might involve altering or removing features of heritage value. This is where specialist structural engineering comes into play.
At Harban Redwood, one of our core specialties is restoring and reinforcing historic buildings. Our approach typically includes:
- Detailed structural surveys – The first step in any restoration project is a comprehensive non-destructive site survey. This enables our engineers to identify signs of structural distress and determine the underlying causes. We can then develop a tailored reinforcement strategy to restore the building’s structural integrity
- Masonry strengthening – Our engineers have extensive expertise in masonry reinforcement, whether working with stone, brick, or blockwork. By specifying techniques such as discreet stainless-steel ties, grouted anchors, and mesh reinforcement, we design solutions that restore strength and stability to walls and chimneys. Each approach is carefully developed to ensure structural resilience while keeping modern interventions hidden from view
- Timber preservation – Using techniques like resin bonding, splicing, and the specification of steel splice plates, we develop solutions that extend the life of timber beams, columns and trusses without replacing too much of the original fabric.
- Foundation and ground stabilisation – Where signs of settlement or subsidence are identified, our engineers can design appropriate foundation strengthening solutions, including underpinning and other modern stabilisation methods. Each scheme is tailored to the specific ground conditions and structural requirements, ensuring the long-term stability of the building while protecting its historic value
By combining these modern engineering methods with a deep respect for traditional craftsmanship, we ensure that historic buildings are not only preserved but also capable of safely serving future generations.
If you own or live in a historic building and are concerned about its structural condition, our engineers are here to help. We take pride in offering clear, practical advice and tailored solutions to give you peace of mind. To arrange a survey or consultation, simply contact us at info@harbanredwood.com.
