Best Value Cavity Wall Insulation 3 Bed In London With 10 Year Warranty
9 ranked offers · category cavity wall insulation · location London
British Gas — Cavity Wall Insulation
British Gas — Cavity Wall Insulation scored 81/100 in aggressive mode. Price: 100/100 (£0/mo, 12-month total £395). Performance: 50/100 (? Mbps down). Reviews: 83/100 (4.2★ across 1200 reviews). Friction: -8 (12-month contract). Key factors: Best-in-class price; Strong review history.
All ranked offers
| Rank | Provider · Plan | £/mo | Mbps | Reviews | Score |
|---|---|---|---|---|---|
| #1 | British Gas Cavity Wall Insulation | £0.00 | — | 4.2★(1,200) | 81 |
| #2 | Swale Heating Cavity Wall Insulation | £0.00 | — | 4.5★(100) | 81 |
| #3 | ScottishPower Cavity Wall Insulation | £0.00 | — | 4.0★(400) | 75 |
| #4 | Npower Cavity Wall Insulation | £0.00 | — | 4.0★(800) | 67 |
| #5 | HomeServe Cavity Wall Insulation | £0.00 | — | 4.3★(200) | 67 |
| #6 | E.ON Cavity Wall Insulation | £0.00 | — | 4.1★(1,000) | 58 |
| #7 | Mark Group Cavity Wall Insulation | £0.00 | — | 4.2★(50) | 57 |
| #8 | SSE Cavity Wall Insulation | £0.00 | — | 4.2★(600) | 45 |
| #9 | EDF Energy Cavity Wall Insulation | £0.00 | — | 4.1★(500) | 36 |
How we ranked these
Each offer is scored across price, performance, reviews, availability and friction. For "Best Value Cavity Wall Insulation 3 Bed In London With 10 Year Warranty" we used aggressive mode — price weighted most heavily, but still requiring credible reviews and acceptable contract terms.
Refine your search
Want tighter constraints — shorter contracts, higher speeds, lower setup fees? Open the optimizer and tune the spec.
Tune this search →