We remove wet and failed cavity wall insulation in Garston, Speke, Aigburth and the wider L19 area. Garston has a lot of older terraced housing with solid walls, which cannot contain cavity insulation, alongside inter-war and post-war cavity homes that often were filled. Sitting on the north bank of the Mersey, some of those cavity homes also face rain driven up the estuary. We check what you have before recommending anything.
The river factor
Garston sits on the Mersey shoreline, with the river widening out beyond it. Weather coming up the estuary from the south-west has a long open stretch of water to cross before it reaches the houses on the riverside streets. It is not the same as the open sea at Crosby, but walls facing the river can take a good deal of driven rain, and filled cavities in those walls are more likely to bridge.
Homes further back, up towards Allerton and Woolton, sit in more sheltered surroundings and usually have different problems, if any.
Solid walls, cavity walls and what that means for you
Garston grew up around its docks and industry, and the older streets near the village centre include many Victorian and Edwardian terraces built with solid brick walls. Those walls have no cavity at all. If you live in one and have damp, the cause will be something else, such as pointing, defective renders, rising moisture or leaks.
Further out, in parts of Garston, Speke and Aigburth, there are inter-war and post-war estates with brick cavity walls. Many were insulated later. Those are the homes we are usually asked about.
What failed fill looks like here
- Damp on the side of the house facing the river after a period of south-westerly storms.
- Peeling paint and blown plaster low down on an outside wall.
- A musty smell in a back bedroom with one wet external wall.
- Rubble or mortar at the base of the cavity, seen on the borescope, holding water against the inner leaf.
Our page on damp after cavity insulation explains why the fill can carry water across the cavity, and the wet cavity insulation removal page explains why soaked mineral wool rarely dries out in place.
Our process for a Garston property
- You call or leave details; we ring back to ask about the house, when it was built and when the cavity was filled.
- We visit, take moisture readings and use a borescope through small holes in the mortar.
- We explain what we found, including if the wall is solid or the cause is unrelated, and quote in writing.
- Extraction: bricks out at intervals, fill removed by industrial vacuum with compressed air and rods, base cleared.
- Post-extraction borescope check, rebuilding with matched pointing as closely as practical, and a report with photos.
How long it takes usually depends on how many walls are affected and how much debris is in the cavity. More detail sits on our extraction page, and the removal cost guide explains what affects the price.
Fix the outside before deciding on refilling
Riverside walls need sound brickwork and pointing, working gutters and effective cavity trays before any thought of refilling. In some exposed cases, leaving the cavity empty is the better long-term choice. We talk through both options once the wall has dried.
We also cover nearby Allerton, Woolton and across the river in Widnes. Our cavity wall insulation extraction team covers all of Merseyside, and our main page has more on removing cavity insulation in Liverpool homes.
Damp walls in Garston, Speke or Aigburth?
Call 07777 659786 and tell us whether your house is an older terrace or a later cavity-built home. We will call back to talk it through.
Frequently asked questions
Does living near the Mersey make my Garston home more likely to have wet cavity fill?
Walls facing the estuary can catch more wind-driven rain than sheltered ones, so a filled cavity on those elevations has a higher chance of getting wet. It is not inevitable, and many homes are fine. We look at the specific wall, its pointing and its exposure before drawing conclusions.
My terrace near Garston village has damp. Is cavity insulation the cause?
Most Victorian and Edwardian terraces in that part of Garston have solid walls, so there is no cavity to fill. The damp will have another cause. We can confirm the wall type quickly, and we will not recommend an extraction where there is no cavity.
Do you cover Speke as well as Garston?
Yes. We work across Speke, Garston, Aigburth and the wider L19, L24 and L17 areas, as well as the rest of south Liverpool.
Can I stay in my house while extraction is carried out?
Yes, in almost all cases. The work is done from outside, by removing bricks at intervals and extracting the fill. There is some noise outside and the occasional need to move items away from walls, but most people carry on as normal inside.