Thermographic Survey in Brighton and Hove

Our thermographic survey assesses every accessible surface of your Brighton or Hove property under calibrated infrared imaging. Using FLIR thermal cameras, our inspectors record surface temperatures across all internal walls, ceilings, floors, windows, and doors, identifying thermal anomalies that indicate heat loss, moisture, insulation failure, or electrical problems. In a city where 53.6% of properties are flats, we are experienced in the specific thermal challenges of both converted terraces and purpose-built apartment blocks.

Solid wall heat loss is the single most common finding in Brighton's Victorian and Regency housing. Solid masonry walls - typically 9 to 13.5 inches of solid brick behind stucco or bare brick facades - lose heat at a rate two to three times higher than a modern insulated cavity wall. Our thermal cameras photograph the temperature differential across the full wall face, quantifying the heat loss at each elevation and identifying where internal wall insulation or secondary glazing would have the greatest impact within planning constraints.

Conversion flat surveys require particular attention to floor plate junctions. Where a Victorian terrace has been divided into two or three flats, the structural floor between units becomes a thermal bridge where heat passes from the heated flat above into the unheated flat below, or where cold air infiltrates through gaps in the floor structure. Our inspectors assess these junctions on accessible ceiling and floor surfaces, recording where the thermal envelope of your individual flat is compromised by the shared building structure.

Coastal properties face additional thermal risks from salt air exposure. External window frames, soffit boards, and render finishes degrade faster in the sea air than in inland locations, opening pathways for moisture and draughts. Infrared imaging records temperature anomalies at all window and door perimeters, identifying where seals have failed and where cold air is infiltrating around frames - issues that drive up energy bills in Brighton's predominantly older housing stock.

• Full infrared imaging of all internal walls, ceilings, floors, and window frames
• Solid wall heat loss mapping across Regency stucco and Victorian brick facades
• Conversion flat floor plate junction and party wall thermal assessment
• Render crack damp ingress detection via cool surface temperature signatures
• Window and door frame air leakage mapping in coastal-exposed properties
• Electrical distribution board and wiring thermal check included

Brighton and Hove has over thirty designated Conservation Areas, including Regency Square, Brunswick Town, Valley Gardens, Cliftonville, The Avenues, Kemp Town, and large sections of central Brighton and Hove. The city also contains over 3,400 listed buildings, from the Grade I Royal Pavilion to thousands of Grade II terraced townhouses and seafront properties. For buyers in these areas, planning restrictions make external insulation, replacement windows, and render changes difficult or impossible to obtain consent for.

For properties within Brighton's conservation areas, thermal imaging defines the precise heat loss distribution within the existing fabric, making it possible to plan targeted internal improvements that do not require external consent. Internal insulated lining boards at the worst-performing wall sections, draught lobbies at front doors, secondary glazing within existing sash window boxes, and draught-proofed skirting junctions are all interventions that can proceed under permitted development or with conservation officer support. Our report provides the thermal evidence to prioritise which elements offer the greatest impact.

Listed building buyers in Brighton benefit particularly from our survey's detailed documentation of the existing thermal condition. Where a listed building consent application for internal works references the thermal performance of the existing fabric, our thermal image report provides the quantified baseline that planning officers and conservation architects require. Our inspectors note the thermal condition of each element - original windows, slate roofs, solid walls, suspended floors - separately, giving you a prioritised remediation plan within the constraints of the listing.

Over half of Brighton and Hove's housing stock is flats, and the majority of these are conversions from Victorian and Edwardian terraces - a property type unlike any other for thermal complexity. When a four-storey Brighton townhouse is divided into four separate flats, each unit inherits a share of the building's external envelope and structural floors. The thermal performance of your individual flat depends not only on the quality of your own insulation but on the heating patterns of neighbouring flats and the integrity of the shared building fabric.

Our conversion flat surveys assess the thermal envelope of your specific unit in the context of the shared building. We identify where heat is escaping through the external walls of your flat, where cold is infiltrating through the floor from an unheated unit below, and where the roof structure above a top-floor flat is insufficiently insulated. Party walls between flats are assessed for thermal bridging at junctions with external walls, a common source of cold corners and condensation risk in Brighton's densely subdivided Victorian terraces.

Suspended timber floors in ground-floor Brighton flats are another significant source of heat loss and cold air infiltration. Original Victorian floorboards sit over a sub-floor void ventilated by air bricks in the external wall. Where these boards have gaps, cold air flows directly up into the living space. Our thermal imaging records the temperature pattern across the floor surface, identifying where draught-proofing or insulation between the joists would have the greatest thermal impact.

Brighton and Hove sits on chalk bedrock, part of the South Downs formation, which is generally stable. However, overlying the chalk in lower-lying coastal and valley areas are deposits of brickearth and alluvium - clay-bearing materials with moderate to high shrink-swell potential. In areas where brickearth is the dominant surface geology, seasonal moisture changes cause ground movement that stresses older foundations and external walls, opening pathways for moisture ingress at mortar joints and around window and door frames.

Chalk geology also presents a specific dissolution risk. Over long timescales, rainwater dissolves chalk bedrock to form cavities that can collapse, creating localised subsidence affecting foundations. While this risk is localised rather than widespread, properties built over chalk in parts of Brighton and Hove - particularly on the Downs fringe and in valley positions - should be assessed carefully for foundation movement before purchase. Thermal imaging does not replace a structural engineer's assessment for subsidence, but it identifies where moisture is entering the building structure as a result of cracking associated with foundation movement.

Coastal flood risk adds a further dimension for Brighton and Hove properties in low-lying areas. Surface water flooding during heavy rainfall events overwhelms drainage in densely built urban areas, and coastal storm surges affect seafront properties at the lowest elevations. Properties that have experienced any flooding carry a higher risk of residual moisture in ground floor walls and under-floor voids. Our thermographic survey maps ground floor wall temperatures to identify where residual moisture is present at the base of external walls, even where visible evidence of flooding has been remediated.