Independent • Evidence-led • Contractor-ready

Building diagnostics, moisture assessment & environmental monitoring.

Independent building fabric, damp, moisture ingress, condensation and mould investigations across South Wales, Mid Wales, Bristol, the South West and the Midlands.

Request Assessment What We Cover

Westland Diagnostics is a trading name of Thermavex Ltd.

For serious property decisions

Building fabric defect diagnosis
Moisture ingress and damp assessment
Humidity, dew point and environmental monitoring
Thermal imaging observations where appropriate
Formal reports for councils, contractors and disputes
Inspection + written report from £850 Project packages priced by scope.
No sales biasIndependent diagnosis, not damp proofing bullshit.
Measured evidenceMoisture readings, thermal patterns and environmental data.
Usable reportsClear findings, practical priorities and defensible conclusions.

What makes us different

We look at the building, not just the damp patch.

Moisture issues are often mislabelled because the inspection starts in the wrong place. Westland Diagnostics reviews the roofline, render, masonry, ground levels, abutments, rainwater goods, ventilation, heating patterns, humidity, dew point and internal moisture distribution.

That means the report explains the likely mechanism — not just “high readings” and a generic treatment recommendation.

Core services

Independent diagnostics for buildings, moisture and internal conditions.

For contractors, councils, property managers, landlords, buyers, surveyors and anyone needing a proper answer before spending money.

Building Fabric Assessment

External and internal fabric review covering render, masonry, roof details, abutments, rainwater goods, ground levels and construction defects.

Moisture Ingress Diagnosis

Investigation of penetrating damp, trapped moisture, saturated masonry, defective detailing and hidden moisture pathways.

Condensation & Mould

Assessment of surface condensation risk, mould patterns, heating, ventilation, dew point and internal environmental conditions.

Formal Reporting

Written reports suitable for contractor review, council property issues, landlord disputes, defect analysis and pre-purchase decisions.

Environmental monitoring

Real temperature and humidity data, not guesswork.

Environmental monitoring records how a building behaves over time. This is especially useful where condensation, mould, tenant use, heating patterns or ventilation are being disputed.

  • Temperature and relative humidity logging
  • Dew point and condensation risk review
  • Short-term or longer-term monitoring packages
  • Useful for HMOs, rentals, holiday lets and council property issues
  • Data-led conclusions in a written report
Condition monitoringLive evidence approach
TemperatureRecorded
Relative HumidityLogged
Dew PointCalculated
Mould RiskAssessed
Building UseInterpreted

Professional support

Clear input when the stakes are higher.

When a standard “damp survey” won’t cut it, Westland Diagnostics provides a sharper, evidence-led review.

Main contractors
Councils & public sector
Landlords & HMOs
Property managers
Surveyors & consultants
Buyers before exchange

Coverage area

South Wales, Mid Wales, Bristol, South West & Midlands.

Regional coverage for inspection, monitoring and reporting work. Wider travel considered for suitable contractor, council and multi-site projects.

South & Mid Wales

Cardiff, Swansea, Newport, Bridgend, Carmarthen, Haverfordwest, Pembrokeshire, Ceredigion and surrounding areas.

Bristol & South West

Bristol, Bath, Gloucester, Cheltenham, Swindon, Somerset, Wiltshire and wider South West locations.

Midlands

Birmingham, Dudley, Coventry, Wolverhampton, Worcester, Hereford and surrounding Midlands project areas.

Report content

Reports built around evidence, cause and next steps.

Outputs can be adapted to the job: quick written summary, full diagnostic report, environmental monitoring review, contractor support note or defect-focused assessment.

External fabric defects
Moisture readings and mapping
Timber moisture checks
Thermal imaging observations
Condensation and mould risk
Environmental monitoring data
Practical remedial priorities
Clear conclusion and recommendations

Start with the property and the problem

Need a proper diagnosis before the next decision?

Send the location, issue summary, existing survey comments, photos if available, and access details. We’ll confirm the best route: inspection, monitoring, report, or a combined assessment.

Email Us

FAQ

Common questions

No. Westland Diagnostics is diagnosis-led. The work is focused on building fabric condition, moisture mechanisms, condensation risk, environmental data and clear reporting.

Yes. We can assess internal conditions and, where needed, deploy environmental monitoring to record temperature, relative humidity and dew point trends over time.

Yes. We cover Wales, Bristol, the South West and the Midlands, with wider travel considered for larger or higher-value projects.

Send the property address or area, a short description of the issue, any existing survey comments, relevant photos, access details and whether a written report or monitoring is required.