Services - sjfengineering.co.uk

Our Services

Internal Wall Removal

Internal wall removals are among the simpler structural checks, but still require a structural engineer to determine whether the wall is load-bearing and, if so, to design appropriate supports. This typically involves assessing the existing structure and specifying steel beams or lintels to carry any loads the wall was supporting. While less complex than external alterations, considerations still include load transfer, floor and ceiling joist arrangements, and integration with the surrounding structure. SJF Engineering ensures the work is safe, meets building regulations, and avoids compromising the integrity of the property.

External Wall Removal

Removing an external wall requires careful structural engineering input to ensure the overall stability of the building is maintained. SJF Engineering assesses the impact of the removal on load paths, lateral stability, and wind resistance. Depending on the span and loading, steel goalposts or full frames to support the structure above and redistribute loads safely to foundations. Key considerations include wind loading on the now more exposed structure, the potential need for lateral restraint, and the integration of new supports. Detailed calculations and drawings/details are essential for building control approval and safe execution on site.

Loft Conversions

SJF Engineering ensure that the proposed alterations to the roof are safe, structurally sound, and compliant with building regulations. Typically, this includes assessing the existing structure, such as the roof, walls, and floor joists and designing any necessary reinforcements or modifications to support the new layout and additional loads. Key considerations include the load-bearing capacity of the existing structure, proper distribution of weight, support for new openings (like dormer windows or stairs), and overall stability. Detailed calculations and structural details are essential for obtaining building approval and guiding the construction process. Solutions typically comprise of steel ridge beams, timber joists, floor steel beams, and cranked beams.

Foundations

SJF Engineering can provide design of foundations for residential buildings / structures, ensuring that it is safely and efficiently supported by the ground beneath it. This typically involves assessing soil conditions, determining load requirements, and designing appropriate foundation systems such as strip, pad, raft, or piled foundations based on site-specific factors. Considerations include soil type and bearing capacity, nearby trees or drains, ground water levels, and the weight and layout of the building. Detailed foundation designs and calculations help ensure long-term stability, prevent settlement issues, and meet all relevant building regulations. Where required, SJF Engineering can provide Ground Investigation specifications.

Site Visit / Inspection

Site visits, structural surveys, and inspections are key part of the service offered by SJF Engineering, providing essential insights into a building’s condition and structure. These visits allow the assessment of visible issues, confirm construction details, take measurements, and identify any defects or risks not evident on drawings alone. They may be required before design work begins, during construction for progress checks, or after completion to ensure compliance. Site observations help inform accurate calculations, appropriate design solutions, and practical recommendations tailored to real site conditions.

Retaining Walls

SJF Engineering ensures that retaining walls are safe, stable, and capable of withstanding the pressure from retained soil or materials. In residential projects, this typically involves assessing site conditions, soil characteristics, and loading requirements to design a suitable wall structure, whether masonry, concrete, or timber. Key considerations include wall height, drainage, ground conditions, surcharge loads (such as vehicles or buildings nearby), and long-term durability. Proper structural design helps prevent wall movement, bulging, or failure, and ensures compliance with building regulations.

CAD & Structural Drawings

SJF Engineering provides CAD and structural drawing services. Accurate plans are essential for every stage of your construction project. Using advanced computer-aided design (CAD) software, we produce precise technical drawings that clearly communicate design intent, dimensions, materials, and details. Structural drawings form the backbone of any build translating engineering calculations into practical construction information. They ensure that architects, contractors, and builders have the exact specifications needed. From initial concepts to final construction documentation, SJF Engineering delivers clear, compliant, and build-ready drawings that support smooth coordination across all disciplines and reduce costly errors on site.

Steel Frame Analysis

SJf Engineering provides steel frame analysis and design services to ensure that every structure is strong, stable, and built to perform. Using advanced engineering software to model and assess how steel frames will behave under various loads and conditions, verifying that every element meets structural safety and performance standards. Precise analysis can optimise material use, enhance efficiency, and deliver cost-effective solutions without compromising quality or safety. Our detailed steel frame designs provide contractors and fabricators with accurate information. Whether for residential, commercial, or industrial projects, SJF’s expertise guarantees robust and reliable steel structures that stand the test of time.

Chimney Removal

When removing part of a chimney stack particularly the section within a property it’s essential to assess the structural impact to the building. SJF Engineering ensure the remaining structure remains safe and stable. This includes assessing the load the chimney previously carried and designing suitable supports, typically steel beams or gallows brackets (building control and party wall dependent), to transfer this load safely to other structural elements. Key considerations include the chimney's location, how it integrates with adjacent walls and floors, and the condition of existing structures. Calculations and details are required for building control approval and guide contractors in carrying out the work safely and in compliance with regulations.

Crack Assessments & Structural Crack Recommendations

At SJF Engineering, we provide professional crack assessments to identify the cause, severity, and structural impact of cracks in buildings and other structures. Using detailed inspections and engineering analysis, we determine whether cracks are cosmetic or signs of deeper structural issues. SJF provides clear, practical recommendations, from simple monitoring and repairs to targeted structural strengthening, ensuring the long-term safety and stability of your property. With SJF Engineering, you can be confident that every assessment is thorough, evidence-based, and supported by expert structural advice you can trust.