Why GBIS fit at the time
The property sat in Council Tax band B and the EPC was E 47 — both GBIS qualifying criteria at the time. A loft top-up from 100mm (or in places, bare) to 300mm alone lifted the EPC into the D band, which the scheme paid for without requiring a multi-measure package.
We filed the scheme application within 24 hours of the survey. Scheme approval took 6 working days.
What we installed
27 rolls of 150mm mineral-wool loft insulation, laid perpendicular to the existing 100mm to bring total depth to 300mm. Loft hatch was upgraded with a draught-seal as part of the job. Access to the loft from the interior landing meant no external scaffolding or disruption.
Install team of two arrived at 9am, finished at 12:45pm. Mrs. Hutton made us tea and we hoovered the landing before leaving.
What we ruled out
The bungalow's tank wasn't insulated and the eaves had no airflow. Quoting just the loft top-up would have been the easy job. Doing it without sorting the ventilation would have caused condensation on the rafters within two winters.
We added eaves vents and a tank jacket to the GBIS scope at no extra customer cost at the time. Different shape of job, same survey day, much better outcome.
The outcome
Immediate effect: the landing temperature rose 4°C within 48 hours. EPC re-rate two weeks later confirmed E 47 → D 68. Projected annual heating saving: £340, which on her fixed income is a noticeable change.
Paperwork to homeowner: zero. OMEGA handled the GBIS scheme application end-to-end.
“They came in at nine, left by lunch, and the landing was warmer by teatime. The paperwork side was a complete non-issue — OMEGA sorted the grants themselves.”