The short answer
Yes, but the finished room has to be opened up first. Foam in a converted loft sits behind plasterboard or between boards and joists, so some lining must come off to reach it. How much depends on where the foam is and how the room was built. We plan the work in sections, protect what stays, and show you the findings as they appear.
A converted loft is harder than an empty one because the foam is behind the finish. The job is opening up, clearing, and putting the room back.
Why a converted loft is a different job
In an empty loft, the foam is in plain view on the underside of the roof. In a converted room it is hidden. The slopes are lined with plasterboard, the floor is boarded or built up, and the foam sits in the gaps behind both. To reach it, someone has to take the finish off.
How much of the room has to come out?
That depends on where the foam went. If it was sprayed only into the eaves and the roof slope, the work is mainly at the sloping ceilings and the knee walls, the short vertical walls where the ceiling meets the floor. If it also went under the floor, boards have to lift. We establish the extent from the survey, through inspection hatches and any open edges, and photograph what we see so the plan rests on evidence.
One thing helps. Plasterboard fixed to battens can often be taken off in panels and reused if it comes away cleanly. Where it cannot, new board and a fresh skim of plaster finish the surface, and fixing heads are filled so the wall reads flat. We discuss the finish with you before starting, so the room comes back the way you expect it.
Working around furniture, wiring and rooms in use
A loft room in use has things in it: a bed, a desk, shelves, a radiator, wiring, perhaps a shower room. The room has to be empty before we start, bed and desk included, and you will need somewhere else to sleep or work while the job runs.
What happens to the wiring and plumbing behind the foam?
Cables, pipes and downlights that were buried in foam are uncovered as it comes away, and we mark and photograph each one so nothing is cut by accident. We do not touch live electrics or pressurised plumbing. Where services need to be disconnected, moved or checked, that is a job for a qualified electrician or plumber, and the right time is while the room is open. It is cheaper and easier to deal with them then than to open the ceiling again later.
For the days the room is open, dust sheets seal the doorway and the stairs, and we keep our route in and out to one path. Our page on living in the house during spray foam removal describes what daily life looks like through the job.
Roof structure, insulation and Building Regulations
Once the foam is out, the roof structure underneath has to be checked and, where it needs it, repaired. Rafters, felt and battens that were covered for years are finally visible, and we record their condition.
Does a loft conversion need re-insulating afterwards?
Almost always, yes, because the foam was your insulation. A room with nothing in its roof void is cold in winter and hot in summer. The replacement has to meet the Building Regulations for a renovated roof, and the national figure for a roof element in a renovation or loft conversion is a threshold of 0.35 W/m²K, upgraded to 0.16 where the relaxation in paragraph 4.13 of Approved Document L applies. Your local building control team confirms what applies to your project.
A converted loft was also built with a fire escape in mind, and the usual arrangement is a protected stair from the room to the front door. If the work disturbs the stair enclosure, raise it with building control before you start. Our answer on what happens after spray foam removal covers re-insulation choices.
Planning the job so the room is usable again
The sensible order is survey, then a clear plan, then the work in stages. We decide with you which section of the room is opened first, where waste leaves the house, and which finishes are put back by us and which by your own decorator or plasterer.
How long is the room out of use?
It depends on the amount of foam and how much lining must come off. You get a timetable once the survey has shown us the access and the extent, and an update at the close of each working day. Our guide on how long spray foam removal takes lists the things that stretch or shorten a job.
If the loft is a bedroom or a home office, tell us when you need it back, and we plan the stages around that. Photos of the sloping ceilings and any hatch help when you write in. A single written price comes after we have been up there, and the spray foam removal page lays out the full sequence.
More on lofts in use
Can I stay in the house while the loft room is opened up?
Usually, yes. The loft is sealed off from the rest of the house with sheeting, and the stairs and landing are protected. Noise and some dust are unavoidable while the lining is coming off, so people who work from home or have young children sometimes arrange to be elsewhere for the loudest days.
Do you replace the plasterboard and decorate?
We make the roof sound, clear the room and agree the finish with you before starting. New plasterboard can be part of the work. Skimming and decorating are often left to a plasterer and decorator of your choice, which we plan the timing around.
The full picture: Spray foam insulation removal in Taunton · More short answers