Insulation &
Damp Surveys
Bolton

Insulation Services Bolton

We are GAP Insulation Services, an expert insulation company covering Bolton. Whether you need cavity wall insulation extracted, new insulation installed, your loft cleared out or boarded, we handle it all. Properly, and without cutting corners.

We work with homeowners, landlords and managing agents throughout Bolton, who want straightforward advice and reliable work. No sales pressure. Just honest assessments and quality insulation services backed by proper accreditations.

Not sure where to start?

Get in touch and we will arrange a survey to assess your property and talk you through your options. No obligation, no pressure.

Damp & Condensation
Surveys
Bolton

If you are dealing with damp walls, mould or condensation, a professional damp survey is the sensible first step. We carry out independent moisture investigations in Bolton, using specialist equipment, then give you clear findings and practical recommendations. Our surveys are diagnostic, not sales led. We tell you what is actually wrong, not what costs the most to fix.

Cavity Wall Insulation
Extraction
Bolton

Failed or poorly installed cavity wall insulation is one of the most common causes of damp in UK homes. If your walls feel cold, you can see mould forming, or your energy bills have crept up despite having insulation fitted, extraction may be the answer. We use our own purpose-built vacuum system to remove old insulation in Bolton, safely and thoroughly, without causing damage to your walls.

Cavity Wall Insulation
Installation
Bolton

Once your cavity is clean, or if your property has never been insulated, we install EvoBead EPS bead insulation in Bolton. It is one of the most effective cavity wall insulation products on the market: moisture-resistant, thermally efficient, and backed by a 25-year guarantee. We are KIWA approved installers, so the work is done to the highest standard.

Loft Insulation
Removal
Bolton

Old, damaged or contaminated loft insulation can cause more problems than it solves. Rodent infestations, water damage from a leaking roof, or simply insulation that has compressed and lost its effectiveness over the years. We remove all types of loft insulation in Bolton, safely, leaving your loft space clean and ready for the next step.

Loft Insulation
Replacement
Bolton

After removal, or where existing insulation has deteriorated, we install fresh loft insulation in Bolton to current Building Regulations standards. A well-insulated loft can reduce your heating bills significantly and make a noticeable difference to how warm your home feels during the colder months.

Loft Boarding
Bolton

Want to make better use of your loft space? Our loft boarding service in Bolton transforms unused attic areas into practical, accessible storage. We fit raised boarding systems that sit above your insulation, so you get the storage space without losing any thermal performance.

Is Your Home at Risk of Damp or Mould Problems in Bolton?

It is worth checking whether your property could be affected by poorly installed cavity wall insulation. Damp and mould problems linked to insulation tend to occur when several of these factors come together:

The property is in a medium to high exposure zone for wind-driven rain
Cavity wall insulation was installed in an unsuitable property type
The insulation material was not appropriate for the location or construction
There are gaps around pipe work, vents or flues that allow moisture in
Pointing or render is in poor condition, allowing water into the cavity
Debris at the base of the cavity is causing moisture to bridge across

If any of this sounds familiar, it is worth getting a professional assessment in Bolton. We can carry out a survey and let you know exactly what is going on.

This is a view from the outside of a house with damp cavity wall insulation. The insulation itself is soaking wet. This will cause damp and mould issues inside the walls and needs to be removed.

This is the inside of a property that had damp cavity wall insulation. As you can see over time, it has bridged through to the inner brick of the house and damaged all the plaster work. It had to be removed.

Another cavity wall that has damp insulation. Over time, this insulation has become soaking wet, and will cause issues for the internal walls such as mould and damp. It needed to be removed.

Debris at the base of the cavity may lead to bridging and damp problems. Professional cavity wall insulation extraction removes this debris, helping to prevent bridging and eliminate the risk of damp.

This video shows a house with wet cavity wall insulation. This excessive moisture will in turn cause issues with damp and mould on internal walls. It needed professional cavity wall insulation extraction.