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TJM Home Improvements
Spray foam insulation on the underside of a roof being removed

Spray Foam Removal

Spray foam removal

Foam stripped out, timbers cleaned back, and an honest report on the roof.

Ask about spray foam removal

Tell us what is happening and we will come and look.

The work

Why the foam has to come out

Spray foam was sold as insulation, but sprayed against the underside of a tiled or slated roof it does two harmful things. It seals the ventilation path, so moisture that used to escape now condenses in the timbers, and it hides the rafters and battens so nobody can see their condition.

That is why many lenders and surveyors treat a foamed roof as a problem to be resolved before a sale or a remortgage. Removal is a dirty, slow job done properly: strip the foam, clean the timbers back, and then tell you honestly what state the roof is in.

  • Waste disposal is in the price, because foam is bulky and it matters.
  • Timbers are cleaned back far enough to actually be inspected.
  • A photographed condition report you can give a surveyor or a lender.
  • If the roof needs replacing afterwards, we can do that too, and we will say so honestly.
Spray foam covering the rafters and gable right across a loft

Why TJM

Why customers choose us

  • A family-run business that has built up an enviable reputation across West London.
  • Over 25 years of experience on roofs, roofline, brickwork and the ground around the house.
  • High standards on every job, whatever its size, from a slipped tile to a full re-roof.
  • Affordable pricing, with the figure in writing before any work starts.
  • Our goal is to meet and exceed the expectations of every customer.
A loft roof slope completely encapsulated in spray foam

What's included

What spray foam removal covers

  • Protection and containment

    Loft hatch, landing and rooms below protected before anything is disturbed.

  • Foam removal

    Foam cut and scraped off the rafters, battens and any felt beneath.

  • Timber cleaning

    Rafters and battens cleaned back so the timber itself can be seen and assessed.

  • Condition report

    A photographed account of the timbers, battens and felt once exposed.

  • Waste removal

    Foam waste bagged and taken away, which is a significant part of the job.

  • Reinstatement advice

    What the roof needs next: re-felting, re-battening, ventilation, or a full re-roof.

The price

Spray Foam Removal costs

What spray foam removal costs comes down to what you actually have, not a price list. Two jobs that sound identical can be an hour of work or a week of it, which is why we do not price roofing over the phone. We come and look, then put a figure in writing.

  • Roof area covered and the thickness of the foam.
  • Whether it is open-cell or closed-cell, since closed-cell is far harder to remove.
  • Loft access, headroom and how far waste has to be carried.
  • Whether the foam was applied over felt or straight to the tiles.

Next step

Get a price for spray foam removal

Send the form or ring us. We will come and look at what you actually have, then put a figure in writing.

Our work

Read the reviews, then look at the jobs

What customers have said about the work, collected from the places they left it.

Read customer feedback straight from our MyBuilder profile, where every review is tied to a job we were hired for, and see finished work on Instagram as it comes off the scaffold.

How it works

How a spray foam removal job runs

  1. Step 01

    Look in the loft

    We see how much foam there is, what type it is, and how accessible the roof space is.

  2. Step 02

    Quote the strip-out

    Priced on area and access, with waste disposal included rather than added later.

  3. Step 03

    Strip and clean

    Foam removed and timbers cleaned back, with the house protected throughout.

  4. Step 04

    Report and recommend

    You get photographs and a straight answer on what the roof needs.

Questions

Spray Foam Removal: common questions

The questions we get asked most often about this work. Anything else, ring and ask.

Still not sure? Ring and ask. It is usually quicker than typing it out, and you will speak to the person who would do the work.

Why do lenders object to spray foam?

Because it prevents the roof structure being inspected and can trap moisture against the timbers. A valuer who cannot see the rafters cannot sign the roof off, which is what causes the problem on a sale or a remortgage.

Can all of it be removed?

Open-cell foam comes off reasonably cleanly. Closed-cell foam bonds hard, and some staining or residue can remain on the timber even after a thorough strip. We will tell you what to expect after looking at yours.

Will I need a new roof afterwards?

Sometimes. If the felt was already perished or the foam was sprayed straight to the tiles, re-felting or re-roofing follows. Often the timbers are sound and the roof only needs ventilation restoring. The report tells you which.

How long does removal take?

A typical semi-detached loft is two to four days depending on the thickness of the foam and how much of the roof it covers. Closed-cell foam takes longer than open-cell because it has to be cut rather than pulled.

Will removing it damage the roof?

The aim is the opposite: removal is what lets the roof be inspected and ventilated again. Felt that has been sprayed over does sometimes tear as the foam comes off, and where that happens we show you and quote re-felting separately.

Where we work

Roofers across West London

We work across the west London boroughs and the towns along the river. If you are just outside the list, ring and ask. We will tell you straight whether it is a journey we can make work.

  • Ealing
  • Northfields
  • Acton
  • Chiswick
  • Shepherds Bush
  • Fulham
  • Hounslow
  • Kew
  • Richmond
  • Twickenham
  • Hampton
  • Kingston
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