Thermal imaging, moisture checks and clear reports from our London team

Insulation Assessment in London, Greater London You Can Trust

An insulation assessment in London, Greater London tells you exactly what is behind your walls, under your floors and above your ceilings before you spend a penny on removal or replacement. We run thermal imaging surveys, moisture readings and ventilation checks across the capital, then hand you a plain-English report. Whether you are selling, buying, remortgaging or just chasing a cold room, we find the problem fast.

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Spray foam removal near me in London, Greater London
Careful work. Honest options.
About this service

What an Insulation Assessment in London, Greater London Covers

An insulation assessment in London, Greater London is a diagnostic survey that identifies what insulation is present, where it sits, how it performs and whether it is causing damp, condensation or mortgage problems. We use a thermal imaging camera to map cold bridges and missing coverage, then take moisture readings at wall bases, ceiling joists and loft timbers. If spray foam is present, we identify whether it is open cell spray foam or closed cell spray foam, check for adhesive residue and look for trapped moisture underneath.

London homes throw up problems you rarely see elsewhere. Victorian terraces in Islington and Hackney have solid brick walls with no cavity, so any foam applied internally traps damp against the masonry. Post-war estates in Croydon and Barking often have loft condensation because ventilation was blocked when insulation went in. If you have had a mortgage rejection due to spray foam, an insulation inspection London lenders accept is the fastest route to a clear answer. Book an insulation survey near me London homeowners trust and you will know within 48 hours.

  • ✓ Answers for Lenders
  • ✓ Stops Hidden Damp Early
  • ✓ Protects Property Value
  • ✓ Targets the Right Fix
What's included

What Our Insulation Assessment Includes

Every assessment covers the same core checks, so you know what you are paying for before we arrive. Additional testing for commercial premises or large warehouse roofs is quoted separately once we understand the scale.

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Thermal Imaging Survey

We scan walls, ceilings, floors and roof voids with a thermal imaging camera to map cold bridges, missing insulation and areas where moisture is likely sitting behind the surface. You get annotated images in the report.

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Moisture Readings

Readings are taken at wall bases, ceiling joists, rafters and any timber in contact with foam. We record percentages so you can compare against future readings and prove whether a problem is active or historic.

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Foam Type Identification

We confirm whether you have open cell spray foam, closed cell spray foam or a mix, and note the likely brand where identifiable. This matters because lenders and removal methods treat each type differently.

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Ventilation Check

Blocked air bricks, sealed eaves and covered soffit vents are common in London lofts. We check airflow routes and flag anything that is trapping moisture, which is often the real cause of condensation rather than the insulation itself.

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Written Report

A plain-English report with photographs, readings, findings and recommended next steps, delivered within 48 hours. It is formatted for lenders, surveyors and solicitors, and we are happy to answer follow-up questions by phone.

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Fixed Removal Quote

If removal is needed, we include a fixed price covering access, protective sheeting, containment, disposal bags and making good. No day rates, no extras added later, and the assessment fee is credited against the work.

How it works

How Our Assessment Process Works

01

Book the Visit

Call 02080885342 or message us and we will book a slot, often same day across central London. You tell us the property type, the concern and whether a lender or solicitor is involved. We confirm access requirements for lofts, cellars and roof voids before we arrive.

02

On-Site Survey

A technician walks the property with a thermal imaging camera, moisture meter and borescope. We inspect loft insulation, roof voids, cavity walls and any visible spray foam. Expect 60 to 90 minutes for a typical three-bed terrace, longer for commercial units or warehouse spray foam removal surveys.

03

Sample and Test

Where foam is present we identify open cell spray foam versus closed cell spray foam and check adhesion to timbers and masonry. We take moisture readings at multiple points and photograph everything. If dry ice blasting or sand blasting equipment will be needed for removal, we note it here.

04

Written Report

You receive a report within 48 hours covering insulation type, condition, moisture levels, ventilation status and recommended next steps. It is written for lenders, surveyors and homeowners alike, with photographs and readings attached. No jargon, no padding.

05

Options and Quote

If removal is needed, we quote for the work including access, protective sheeting, HEPA filters and disposal bags. If it is not needed, we tell you that too. You get a fixed price and a start date, and we do not chase you afterwards.

Tools & methods

Tools and Methods We Use

Purpose-built equipment, used by trained technicians — so the job is done accurately the first time.

Thermal imaging camera

Maps temperature differences across walls, ceilings and roof voids to reveal missing insulation, cold bridges and areas where moisture is likely trapped behind foam.

Moisture meter and borescope

Takes percentage readings at timbers and masonry, and lets us inspect behind foam without removing it, so we can check rafter condition during the survey.

Industrial vacuum and air scrubber

Used during any sampling or removal work to contain dust and debris. Paired with HEPA filters and negative air machines on larger jobs to protect the rest of the property.

Dry ice blasting machine

Removes foam and adhesive residue from timbers and masonry with minimal abrasion. Dry ice pellets lift material cleanly, which suits older London roof structures.

Sand blasting equipment

Cleans stubborn residue from brick and concrete where the substrate is hard enough. We assess suitability first, since some London masonry is too soft for abrasive blasting.

Reciprocating saw and oscillating multi-tool

Cuts back foam and timber where access is tight. Bosch and Makita cordless tools let us work in lofts without trailing leads or tripping hazards.

Respirator and protective clothing

Standard kit for every technician working with polyurethane foam. We use 3M respirators and disposable coveralls, and we seal work areas with protective sheeting before starting.

Real results

Before and after.

Stalled Sale in Wandsworth

Before

A homeowner had agreed a sale on a three-bed Victorian terrace, but the buyer's surveyor flagged spray foam across the entire loft and the lender withdrew its offer. The foam was closed cell, applied directly to the sarking boards, with no ventilation gap.

After

We assessed the loft, documented moisture readings at 18 percent in two rafters, and removed the foam over two days using dry ice blasting. Ventilation was restored at the eaves and the timbers dried to 12 percent within three weeks.

Cold Bedroom in Hackney

Before

A couple had spent two winters with a bedroom that never warmed up, assuming the insulation was inadequate. A thermal imaging survey showed the closed cell foam was performing well, but a two-metre section of wall had no coverage at all behind the plasterboard.

After

We recommended a targeted repair rather than a full strip-out. The gap was insulated, the room reached temperature within 20 minutes of the heating coming on, and the couple saved roughly 4,000 pounds against a full removal quote.

Condensation in a Croydon Semi

Before

A landlord was getting complaints about damp patches on bedroom ceilings across two rental properties. Both lofts had mineral wool laid right over the eaves, blocking airflow, and one had foam near the water tank. Moisture readings were 22 percent in the ceiling joists.

After

We cleared the blocked eaves, removed the foam around the tank, and installed ventilation trays. Readings dropped to 13 percent within a month, and no further damp complaints were received over the following winter.

Problems we solve

Problems Our London Assessments Solve

Most people call us because something has gone wrong with a sale, a mortgage or a room that will not stay warm. Here are the situations we deal with every week across the capital.

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01

Mortgage lender refuses to lend on spray foam

We assess the foam properly, document its type, coverage and moisture impact, and produce a report in the format lenders accept. If removal is required, we carry it out and provide photographic evidence of the completed work for your file.

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02

Loft condensation and damp timbers

Our thermal imaging and moisture readings pinpoint where the damp is coming from. Often the fix is restoring ventilation rather than removing foam, and we tell you honestly which applies to your property.

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03

Reduced property value after a bad survey

An independent assessment with hard data gives you something to negotiate with. We have helped sellers in Wandsworth and Bromley keep their agreed price by showing the foam was sound and the ventilation adequate.

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04

Difficulty obtaining surveys on foamed properties

We inspect what others cannot, using borescopes and thermal imaging to assess timbers behind the foam. Our report fills the gap and gives surveyors the information they need to proceed.

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Proof you can check

Accredited and Insured

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CHAS AccreditationCHAS
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Constructionline RegistrationConstructionline
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SafeContractor ApprovalSafeContractor
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TrustMark RegisteredTrustMark
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British Board of Agrément (BBA) referenced materialsBritish Board of Agrément
Good questions

Frequently Asked Questions

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Most residential assessments in London cost between 180 and 350 pounds including the written report. Larger properties, commercial units and warehouse spray foam removal surveys run 400 to 750 pounds. If we go on to carry out removal work, we credit the assessment fee against the final invoice. Typical 2026 pricing across Greater London sits in that range.

Yes. We cover every London borough, from Westminster and Camden out to Croydon, Bromley, Hillingdon and Havering. A technician attends with a thermal imaging camera, moisture meter and borescope, and you get the report within 48 hours. Same day insulation assessment London slots are available most weekdays if you call before midday.

We inspect the loft, roof void, cavity walls and any visible foam, then take moisture readings at timber and masonry. A thermal imaging camera maps cold spots and missing coverage. We identify whether the foam is open cell or closed cell, check adhesion, and photograph everything. The whole visit takes 60 to 90 minutes for a typical London terrace.

The on-site survey takes 60 to 90 minutes for a standard house and up to three hours for commercial or warehouse units. The written report follows within 48 hours. If you have a mortgage deadline, tell us at booking and we can prioritise the report, often turning it around the same evening.

Ready when you are

Book Your Insulation Assessment in London, Greater London

Call 02080885342 and we will book your survey, often the same day. You get a thermal imaging inspection, moisture readings and a written report within 48 hours, with the assessment fee credited if you proceed to removal. Fixed prices, no chasing.

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Request an appointment

Book your spray foam removal

Call 02080885342 between 8am and 6pm Monday to Friday, or leave a message any time and we will call you back the next morning. Most surveys are booked within 48 hours and quotes go out the same day. Email works too if you have photos of the loft to send over.

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