Find the Cause First

We look over the whole roof space to find out what's causing the condensation before anything is fitted. As roofers and insulation specialists, we know insulation and ventilation have to be balanced, and our own directly employed team does the work.

What Others Get Wrong

A common mistake is fitting vents without understanding why the condensation is there. We regularly find blocked eaves, poor airflow and insulation fitted in a way that stops the roof breathing. Adding vents without looking at the whole roof doesn't always solve it, so we investigate the cause and recommend what will.

A Recent Job

A house with non-breathable bitumen sarking felt had heavy condensation in the roof space because there wasn't enough airflow. We fitted a new dry ridge ventilation system and internal lap vents. Within 2 to 3 days of finishing, the condensation had cleared, with no need for a new roof.

Signs of a Ventilation Problem

Condensation in the roof space
Too much moisture, or mould, in the loft
Stale air with no airflow through the roof
Black bitumen felt under the tiles, which does not breathe

How Long It Takes

Usually 1 to 2 working days, depending on the size of the property and the roof structure.

From the Reviews

"We recently used Next Generation Insulation to diagnose the cause of damp in our loft and provide the right solution. Dean was very clear and knowledgeable, and I’m confident he correctly identified the issue and recommended the best course of action. As the team specialise in both insulation and roofing, they were able to take a holistic view and find the right solution, rather than simply suggesting work that would benefit them. They removed the wet insulation from my loft, carried out mould removal and preventative treatment, and then correctly installed new insulation. The work was completed over two days with a large team on site, all of whom were great lads. The work was delivered to a very high standard, with real care taken to protect my property and leave everything clean and tidy. Honestly, they are the best tradesmen and company we’ve come across in a very long time. I wouldn’t hesitate to recommend them or use them again for any future work."
Samantha, Derby, Google review