NAO Report November 2024:98% failure rate revealed

RICS-Certified • Professional Equipment • Detailed Reports

Professional Insulation Damp Survey

Expert damp and moisture surveys specifically for insulation-related problems. Get definitive answers about whether your damp is caused by failed insulation - with professional evidence for compensation claims.

Check Your Symptoms
NAO Report Warning
The November 2024 National Audit Office Report found that 98% of homes with government-installed wall insulation will suffer from damp and mould. If you had ECO4 or GBIS insulation installed, you likely need this survey.

Why You Need a Professional Damp Survey

Prove Causation

A professional survey provides scientific evidence that your damp problem is caused by the insulation installation - not pre-existing issues. This is critical for compensation claims and disputes with installers who claim the damp was already there.

Secure Compensation

Without a professional survey, compensation claims are easily rejected. CIGA, Trustmark, and energy companies require independent surveyor reports as proof. This survey gives you the evidence you need to claim £5,000-£35,000+ in compensation.

Mortgage Requirements

Lenders increasingly require damp surveys before approving mortgages, especially if spray foam or cavity wall insulation is present. This survey satisfies mortgage requirements and can identify if removal is necessary for your sale to proceed.

Avoid Costly Mistakes

DIY diagnosis often leads to expensive, unnecessary treatments. A professional survey identifies the root cause, saving you thousands on ineffective damp treatments that don't address the real problem - the insulation.

What's Included in Your Survey

Moisture Meter Testing

Professional-grade capacitance and resistance moisture meters measure moisture levels throughout your property. We record readings in:

  • • All external walls (inside and out where possible)
  • • Areas with visible damp or mould
  • • Control areas (non-affected walls for comparison)
  • • Timbers in roof space if spray foam is present
  • • Behind radiators and furniture where practical

Thermal Imaging Survey

Infrared thermal imaging cameras detect temperature differences that reveal:

  • • Cold spots indicating insulation gaps or failures
  • • Moisture presence (appears as cold patches)
  • • Air leakage paths causing condensation
  • • Thermal bridging through wall ties or fixings
  • • Uninsulated areas vs insulated areas

Visual Inspection & Diagnosis

Comprehensive inspection by RICS-certified surveyor covering:

  • • Mould growth patterns and locations
  • • Condensation on windows and walls
  • • Ventilation adequacy (trickle vents, extractor fans)
  • • External wall condition and render/cladding defects
  • • Roof space inspection (ventilation, timber condition)
  • • Signs of penetrating damp vs condensation

Detailed Written Report

Professional report delivered within 48 hours including:

  • • Executive summary of findings
  • • All moisture meter readings with locations marked on plans
  • • Thermal imaging photographs with analysis
  • • Photographs of all affected areas
  • • Professional opinion on cause of damp (with references to building standards)
  • • Link between insulation installation and damp problems
  • • Recommendations for remediation
  • • Cost estimates for necessary work
  • • Guidance on compensation claims

Insulation-Related Damp Problems We Identify

Condensation Damp

Most common with cavity wall and spray foam insulation. Blocked ventilation causes moisture to condense on cold surfaces.

Symptoms: Black mould in corners, window condensation, musty smell

Interstitial Condensation

Hidden condensation within wall cavities or behind insulation. Common with external wall insulation without vapor control layer.

Symptoms: Damp patches appearing randomly, no obvious water source

Penetrating Damp

External wall insulation can trap water in walls or cause new water ingress points through poorly installed fixings and renders.

Symptoms: Damp patches worse after rain, on external walls only

Timber Rot & Decay

Spray foam blocks roof ventilation, trapping moisture in timbers. Leads to wet rot, dry rot, and structural damage.

Symptoms: Sagging roof, visible timber damage, fungal growth

Cold Bridging

Incorrectly installed insulation creates cold spots where moisture condenses. Common with internal wall insulation at junctions.

Symptoms: Mould in specific spots, cold walls, damp patches at corners

Wall Cavity Saturation

Cavity wall insulation absorbs water from rain penetration or condensation, creating a permanent damp reservoir in your walls.

Symptoms: Persistent damp, cold walls, won't dry out

Book Your Damp Survey

Get matched with RICS-certified surveyors specializing in insulation-related damp

Property Details

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Survey Pricing

Basic Survey

£150-£300
  • • Visual inspection
  • • Moisture meter readings
  • • Basic written report
  • • Photos of affected areas

Suitable for straightforward cases

MOST POPULAR

Comprehensive Survey

£350-£600
  • • Full property inspection
  • • Moisture meter testing
  • • Thermal imaging
  • • Detailed written report
  • • Compensation claim guidance
  • • Cost breakdown for remediation

Recommended for compensation claims

Full Building Survey

£700-£1,200
  • • Everything in Comprehensive
  • • Full structural survey
  • • Timber specialist report
  • • Air tightness testing
  • • Expert witness statement

For legal proceedings or severe issues

Important: If you proceed with remediation work through our recommended contractors, many will deduct the survey cost from your final bill.

Frequently Asked Questions