Cavity wall services
Twenty-four services covering cavity wall insulation from first survey to removal and repair, plus the loft, floor and draught-proofing work that usually goes alongside.
Choose a service for guide prices, what is included and how the work is done.
Insulate your walls
Fill an empty cavity, top up a patchy one, or insulate as you build.
Cavity wall insulation
Survey, drill, fill and make good: an empty cavity filled with a certified system.
Learn more →Blown mineral wool insulation
Water-repellent mineral fibre blown into the cavity: the long-standing standard fill.
Learn more →Bonded polystyrene bead insulation
Expanded polystyrene beads coated with a binder so they lock together in the cavity.
Learn more →Party wall cavity insulation
Seal the hidden cavity between you and next door that leaks heat into the loft.
Learn more →Cavity insulation top-up
Fill the gaps in an older, patchy or disturbed cavity fill without starting again.
Learn more →Cavity insulation for new builds and extensions
Full-fill or partial-fill batts fitted as the walls go up, for builders and self-builders.
Learn more →Surveys and checks
Find out what is in your walls before anyone drills.
Cavity wall suitability survey
The check that comes before any drilling: walls, cavity, condition and exposure.
Learn more →Borescope cavity inspection
A camera through a small hole shows what is really in your cavity.
Learn more →Thermal imaging survey
Infrared images that show where heat escapes: empty panels, gaps and cold bridges.
Learn more →Existing insulation and guarantee check
For buyers, sellers and owners: is the cavity filled, is it sound, is there a guarantee?
Learn more →Problems, removal and repairs
Damp, failed fills, debris and corroded ties, put right properly.
Cavity wall insulation removal
Extraction of wet, failed or unsuitable fill, with bricks lifted and reinstated.
Learn more →Remove and refill
Extract the failed fill, fix the cause, then refill with a system that suits the wall.
Learn more →Damp investigation after cavity insulation
Find the real cause of damp before anyone recommends extraction.
Learn more →Cavity cleaning and debris removal
Clear mortar droppings and rubble that bridge the cavity and carry damp across.
Learn more →Wall tie replacement
Remedial ties fitted where old steel ties have corroded and the outer leaf is moving.
Learn more →Repointing and pre-insulation repairs
Pointing, brick, sill and gutter fixes that make a wall fit to fill.
Learn more →Landlords, housing and commercial
Portfolios, blocks, estates and commercial buildings.
Cavity wall insulation for landlords
Portfolio surveys and fills that lift EPC ratings at the lowest cost per point.
Learn more →Social housing and estate programmes
Surveys, fills and remediation for housing associations and councils.
Learn more →Commercial cavity wall insulation
Offices, schools, surgeries and light industrial buildings with masonry cavity walls.
Learn more →Cavity wall insulation for flats
Whole-block surveys and fills, coordinated with freeholders and managing agents.
Learn more →Grant and funding check
A straight answer on whether a funded scheme could pay, before you pay privately.
Learn more →More insulation
The other quick wins that usually sit alongside a cavity fill.
Loft insulation
Top up or replace loft insulation to current depths while we are on site.
Learn more →Underfloor insulation
Insulate suspended timber floors from above or below without losing ventilation.
Learn more →Draught-proofing
Seal gaps around doors, windows, letterboxes and loft hatches.
Learn more →Find out if your walls can be filled
Free survey with an install quote. Written result. Fixed price before any work.