Independant Insulation Surveys

Expert evaluation for home buyers and homeowners. We provide clear, factual assessments regarding property suitability, damp diagnosis, and cavity wall extraction requirements in line with PAS 2030:23.

Get a Free Survey

Accurate, Evidence-Based Diagnosis

We offer a range of professional surveys to support homebuyers, homeowners,
and property managers in making informed decisions.

Borescope Inspection

We inspect the hidden cavity space using specialist borescope equipment to confirm the exact condition and type of any existing insulation.
Book a Survey

Damp & Moisture Assessment

Accurate identification of damp causes, cold spots, and condensation risks-focusing on honest diagnosis rather than assumptions or generic treatments.
Book a Survey

PAS 2030:23 Compliant

All surveys are carried out by qualified professionals in line with TrustMark and PAS 2030:23 standards, ensuring clear and compliant recommendations.
Book a Survey

Pre-Purchase Cavity Wall Insulation Survey

Buying a home? A pre-purchase cavity wall insulation survey gives you certainty about what’s hidden inside the walls before you commit.
Many UK properties contain old, failed or unsuitable cavity wall insulation that can cause damp, mould, heat loss and expensive remedial works after completion. Unfortunately, these issues are rarely identified during the buying process.

EPCs and Homebuyer Surveys Are Not Enough

EPCs and standard homebuyer surveys do not assess the condition of cavity wall insulation. They often rely on assumptions based on the age of the property — and in many cases, those assumptions are incorrect. Only a specialist cavity wall insulation inspection can accurately confirm whether insulation is present, what type it is, and whether it is fit for purpose.

What Our Pre-Purchase Survey Includes

Our cavity wall insulation pre-purchase survey provides a clear, factual assessment so you can make an informed decision.

We will confirm:

  •  Whether the cavity walls are empty and suitable for insulation
  • What insulation material (if any) has been installed
  • Whether the insulation is fully filled or contains voids
  • The condition and performance of the existing insulation
  • An estimated cost to remove/extract failed insulation
  • An estimated cost to install new EPS Bonded Bead insulation

Why a Cavity Wall Survey Before Buying Is Important

Cavity wall insulation has a significant impact on:

  •  Energy efficiency
  • Heating costs
  • Internal comfort
  • Damp and condensation risk
  • If insulation has failed or was incorrectly installed, remedial works can cost thousands of pounds once the property is yours.


A pre-purchase cavity wall survey allows you to:

  •  Identify hidden defects before exchange
  • Budget accurately for future works
  • Renegotiate the purchase price if necessary
  • Avoid unexpected post-completion costs


Who This Survey Is For:

  •  Home buyers and investors
  • Buyers of older properties (1930s–1990s builds)
  • Anyone concerned about damp, cold rooms, or energy efficiency
  • Purchasers wanting clarity before committing financially

Peace of Mind Before You Buy

Insulation can make a home warmer, more efficient, and cheaper to run — but only when it’s suitable and correctly installed. If existing insulation is no longer fit for purpose, it’s far better to know before you complete the purchase.

A pre-purchase cavity wall insulation survey gives you that confidence.

DAMP & MOISTURE INVESTIGATION SURVEYS

Damp & Moisture Investigation Surveys

Damp is one of the most commonly misunderstood issues in residential properties.

Many homeowners are given generic diagnoses or sold unnecessary treatments without properly identifying the root cause. Our approach is different — we focus on accurate diagnosis, not assumptions.

Identifying the Cause — Not Just the Symptoms

Damp can be caused by a range of factors, including:

  • Failed or unsuitable cavity wall insulation
  • Bridging within the cavity
  • Poor ventilation or condensation
  • External defects (pointing, render, seals)
  • Internal factors such as insulation detailing


Treating damp correctly depends entirely on understanding what is actually causing it.

What Our Damp Survey Includes

Our paid damp and moisture surveys provide a clear, unbiased assessment of the issue.

We assess:

  • Internal signs of damp and moisture patterns
  • Likely causes (not just surface symptoms)
  • The role of cavity wall insulation (if present)
  • Ventilation and condensation risks
  • External influences affecting the property


Where relevant, we will also advise on:

  • Whether insulation is contributing to the issue
  • Whether extraction or remedial works may be required
  • Practical next steps to resolve the problem

Independent, Practical Advice

We do not carry out “one-size-fits-all” damp treatments.

Our surveys are focused on providing clear, practical guidance so you can make informed decisions — whether that involves insulation works, ventilation improvements, or other remedial actions.

When to Consider a Damp Survey

  • Visible damp patches or staining
  • Mould growth or condensation issues
  • Cold or consistently damp walls
  • Concerns following cavity wall insulation
  • Conflicting advice from previous inspections

HOW WE SURVEY (QUOTATION SURVEYS EXPLAINED)

Our Survey Approach (Quotation Surveys)

Before providing any quotation for insulation works, we carry out a professional on-site survey to ensure the property is suitable and the correct solution is specified.

Why Proper Surveys Matter

Insulation should never be installed based on assumptions.

Incorrect installation — or installing in unsuitable properties — is one of the main causes of damp, poor performance, and costly remedial works.

Our survey process ensures:

  • The right solution is recommended
  • The property is suitable
  • Risks are identified before work begins

What We Assess

During a quotation survey, we review:

  • Property construction type
  • Cavity condition and accessibility
  • Existing insulation (if present)
  • Exposure to weather conditions
  • Ventilation considerations
  • Any visible defects or risks


Where required, we may use borescope inspections to assess the cavity internally.

Honest, Suitability-Based Recommendations

If a property is not suitable for insulation, we will not proceed.

Our focus is on getting the outcome right, not simply generating work.

No Obligation, No Pressure

Our surveys are carried out professionally, with clear recommendations and no sales pressure.

You receive:

  • A clear explanation of findings
  • Suitability confirmation
  • A detailed quotation (where appropriate)