Cavity insulation remedial work is for fill that is holding moisture or bridging the cavity, after the wall has been surveyed. It is for insulated cavity houses in England, Scotland, and Wales, not a new insulation install. Send the quote form or WhatsApp with the postcode.
Cavity Wall Insulation Remedial
Fill in the cavity can sit against debris, cross the damp-proof course, or stay wet because the outer leaf lets rain in. The damp shows inside, often as patches rather than a neat tide mark.
Some cavities should not have been filled. Some damp is pointing and gutters, and the insulation is dry. We do not empty a wall on a guess.
The investigation, removal if it is justified, making good the drill points, and the outside repairs that were letting rain into the cavity.
We do not install cavity insulation on this service. We also do not inject a damp-proof course into a cavity wall and call the insulation problem solved.
Cavity Wall Insulation Remedial
Mortar droppings and a narrow cavity let fill bridge the two leaves. Moisture then tracks inside.
A weather-facing wall with open joints soaks the outer leaf. Fill against that leaf stays wet.
Poorly closed cavities at windows track water to the reveal. The reveal is often the first internal stain.
Fill taken down below the course can connect wet ground to the inner leaf. That is a bridge, not “a bit of damp”.
The wet patch should line up with a bridge or a soaked outer leaf. Fill is not blamed by default.
The outer leaf still has to shed rain. Pointing or a gutter is repaired when that is what soaked the fill. Dry, stable fill is left in place.
Solid walls do not get this service. The construction is checked before any talk of extraction.
Solid walls do not get this service.
We look in the cavity.
Pointing, render, and gutters are repaired when they are feeding the cavity.
Extraction is limited to the insulation that is bridging or holding water.
Drill points are closed.
The treatment named in the written quote carries a 30-year guarantee.
Investigation, extraction, and outside repairs are separate lines. Emptying a dry cavity is not something we quote as a remedy. The price follows the area that is actually bridged or saturated, plus the pointing or gutters that let the rain in.
Questions that decide whether this is the right job.
No. Dry, stable fill that is not bridging is not the defect. Taking it out of a sound wall is not a damp repair.
A cold wall can be solid brick, missing heat, or condensation. The construction is checked before anyone talks about extraction.
This service is the remedial damp work. A new insulation install is not part of the quote.
No. A course at the base of the wall does not dry a wet cavity above it.
Tell us the floor, whether it follows rain, and the postcode. The quote follows the survey.
Get Your Free QuoteMoisture that comes through the wall from outside, including on older solid-wall houses.
Learn more about Penetrating Damp SolutionsA damp survey with moisture meters and thermal imaging, so the cause is known before any work.
Learn more about Damp Survey & Moisture ReportAirflow and temperature are managed, often with ventilation, so indoor humidity comes down.
Learn more about Condensation Control SystemsSurveys run in Kent, Cardiff, and Glasgow, and in the other counties and towns on the areas page.
Name the room, the floor, and what the wall is doing. WhatsApp takes the same details.