Closed cell vs open cell spray foam: which is harder to remove
· By Spray Foam Removal Network
Published UK cost guides give a higher removal price for closed cell foam than for open cell foam. Open cell foam has a lower published price in the same guides. Consequently, removing closed cell vs open cell spray foam is priced differently.
Why closed cell costs more to remove
The price depends on the foam type, the size of the property and any timber work. The figures below come from published UK cost guides. Ask a contractor to explain how they would remove the type of foam in your property, since the price depends on it.
Cost estimates vary based on the property size and the foam type. For a semi or three-bed loft, published UK cost guides give about £3,500 to £5,000 for closed cell foam. For open cell foam in the same space they give about £2,500 to £3,500. Larger detached properties see higher prices.
For these, published guides give about £5,000 to £6,500 for closed cell removal. In contrast, they give about £3,500 to £4,500 for open cell removal in large houses. These prices exclude surveys or timber extras.
You should always prepare for extra costs for timber work, since minor repairs to timber might cost between £500 and £1,500. These prices come from published UK cost guides such as BestBuilders, Trade2Base and UKCalculator.
You should read these guides to prepare yourself. You should still ask if the quote includes timber treatment.
Why people choose to remove foam
Homeowners may want to change their insulation type. They might find that the current material is unsuitable. For example, a specialist surveyor may advise that foam should be removed. Some people want to improve the thermal efficiency of their home. Others want to replace the material with something different.
Sometimes, an owner is unsure how well the foam was applied. Ask a specialist surveyor to look at it. Therefore, if you see dampness on your roof timbers, ask a specialist surveyor to look.
Only specialist surveyors experienced in spray foam can tell you whether to remove spray foam insulation. Once the foam is gone, you may need timber treatment.
The type of foam used dictates the removal process. Published cost guides give a higher price for closed cell foam. Ask your contractor what affects the price of your job.
Ask which type of foam they expect to find, since the type dictates the removal process. You should check your insulation type before you start planning. You might ask a professional about the specific density of your current insulation.
Telling the two foam types apart
You can perform some simple checks before calling a professional. First, try to identify the type of foam you have. You can do this by feeling the texture. Open cell foam can feel soft, while closed cell foam can feel harder, but a specialist should confirm the type.
You should also look for signs of moisture. Check your roof timbers for any damp patches. Look for any dark spots that might indicate rot.
If you find these issues, prepare some details. Note the approximate size of the area, since this helps when you send an enquiry.
Check the condition of your roof structure. Look for any sagging or warping in the wood. It is also wise to check for any visible condensation.
You should ask a professional how they check for hidden rot. Knowing these details will help you prepare for your own spray foam removal. You should check if your insurance covers any accidental damage during the process.
When to contact a removal contractor
You should contact a professional if you suspect moisture damage. If your roof timbers look damp, you need an expert. They can assess if the foam is causing the problem. You should also call if you want to upgrade your insulation.
One enquiry puts you in touch with one pre-qualified removal contractor for this job. You will receive one quote after they see the job. Although we do not do the work ourselves, we match you with a specialist.
When you send an enquiry, provide clear details. Mention the type of foam if you know it. Describe the size of your loft or roof area.
This helps the professional provide an accurate assessment. You can ask about spray foam removal in Bristol. You can also ask about spray foam removal in Cardiff.
You may also require spray foam removal in Cornwall or spray foam removal in Birmingham. If you need more specific information, read our guides on closed cell spray foam removal or open cell spray foam removal. You should also ask about the specific tools they use for closed cell vs open cell spray foam. Prepare to discuss the total area that needs attention.