The Barnet Extension Where the Builder Found Asbestos and Why Our Architect Had Already Planned for It

The builder called us on day three. He had opened up the old kitchen ceiling and found Artex. The textured coating that was popular in the 1970s and 80s. The textured coating that often contains asbestos.

Most homeowners panic at this point. Asbestos. Health risk. Stop work. Expensive removal. Project derailed. But our barnet architects practice had already planned for it. They had flagged the Artex during the first visit. Budgeted for testing and removal. Built the timeline around it. What could have been a crisis was just a scheduled task.

Why Artex Means Asbestos

Artex and similar textured coatings applied before the year 2000 often contain white asbestos. It was added to the mix to strengthen the coating and help it set. Completely legal at the time. Completely common in houses built or renovated in the 1970s and 80s.

Our house in Finchley had Artex ceilings throughout the ground floor. Applied by a previous owner in what looked like the 1980s based on the style. We never thought about it. It was just a textured ceiling. The kind millions of houses have.

When you renovate, that Artex becomes a problem. Disturbing it during construction releases asbestos fibres into the air. Drilling into it. Removing it. Even sanding it. Any disturbance is a health risk that requires proper management.

What Our Architect Did During the First Visit

She looked up. Most architects look at floor plans and room dimensions. She looked at the ceilings. Noticed the Artex immediately. Asked when the house was last renovated. Based on the style she estimated the Artex was applied in the 1980s. Pre 2000. Likely to contain asbestos.

She recommended an asbestos survey before any work started. A specialist company took samples from the Artex ceilings and tested them in a lab. The results confirmed white asbestos in the textured coating.

This was not bad news. It was expected news. And because it was expected we could plan for it properly rather than discovering it as a shock during construction.

How Planning for It Changed Everything

Because the asbestos was identified during design, we built the removal into the project from the start.

A licensed asbestos removal contractor was scheduled before the main construction began. They removed the Artex ceilings safely. Sealed the area. Used proper protective equipment. Disposed of the material at a licensed facility. Provided certification confirming the area was clear.

The removal cost about two thousand. Budgeted from the start. Not a surprise. Not a panic. A scheduled task with a known cost completed before the builder needed to work in those areas.

The timeline accommodated it. The asbestos removal happened in the first week. The builder then worked in clean safe spaces for the rest of the project. No interruption. No emergency. No stopping work midway to deal with a hazard nobody anticipated.

What Happens When Nobody Plans for It

Our neighbour renovated around the same time. Different architect. The Artex was never flagged during design. The builder discovered it on site when he started removing the old ceiling.

Work stopped immediately. The builder could not legally continue disturbing material that might contain asbestos. A survey was commissioned urgently. The results confirmed asbestos. A licensed removal contractor was booked but they had a three week waiting list because it was an emergency rather than a planned job.

Three weeks of stopped work. The builder still charging for the time his team was idle or redeployed. The emergency survey costing more than a planned one. The removal contractor charging premium rates for urgent work.

Their asbestos problem cost about five thousand and three weeks of delay. Ours cost two thousand and zero delay. Same hazard. Completely different outcome. Because one architect looked up during the first visit and the other didnt.

Why Looking Up Matters

Asbestos is not just in Artex. It appears in old floor tiles. In insulation around old pipes and boilers. In cement roofing sheets on garages and outbuildings. In the backing of old vinyl flooring. In textured coatings on walls and ceilings.

Any house built or renovated before 2000 might contain asbestos somewhere. An architect who knows this checks for it during the first visit. They look at the ceilings. The floor tiles. The pipe insulation. The garage roof. They identify potential asbestos before designing so it can be tested and removed as a planned task rather than discovered as an emergency.

Our architect had renovated enough Barnet houses to know that 1980s Artex almost always means asbestos. She didnt need the lab results to plan for it. She budgeted for removal the moment she saw the textured ceilings.

What This Cost Versus What It Saved

The asbestos survey. About four hundred. The removal. About two thousand. Both planned. Both budgeted. Both completed before the main construction without disrupting the programme.

Total cost. Two thousand four hundred. Compared to our neighbours five thousand plus three weeks of delay because their asbestos was discovered rather than anticipated.

The difference was not luck. It was an architect who looked at the ceilings during the first visit and knew what 1980s Artex meant. Knowledge that turned a potential crisis into a scheduled task.

What to Check Before You Renovate

If your house was built or renovated before 2000, ask your architect about asbestos during the first visit. Textured ceilings. Old floor tiles. Pipe insulation. Garage roofs. Any of these might contain asbestos.

An asbestos survey costs a few hundred pounds. It identifies any hazard before work starts so removal can be planned properly. The alternative is discovering asbestos during construction. Stopped work. Emergency removal at premium rates. Weeks of delay.

Six to eight months from first conversation to completion. An asbestos problem that was a scheduled task rather than a crisis. Because someone looked up during the first visit.