Guides & advice
from GMAS Group.
Plain-speaking guides on electrical safety, landlord compliance, energy ratings and home renovation — written by the people who do the work.
London landlord compliance checklist 2025
Every certificate a London landlord legally needs in 2025 — EICR, gas safety, EPC, fire alarm and PAT — and the fines for missing them.
Read guide →When does a landlord need an EICR?
The legal requirement for EICRs in rental properties explained. When you need one, what happens if you don't, and what the inspection involves.
Read guide →EICR cost London 2025 — what to expect
Typical EICR costs for London properties, what affects the price, and what C1, C2 and C3 codes mean for your property.
Read guide →EPC ratings explained — A to G and beyond
What EPC ratings mean, how they are calculated, which improvements matter most, and what landlords need to know about the proposed 2028 minimum.
Read guide →EPC rating D — what it means for landlords
A D rating is legal today but future changes may require action. What a D rating typically looks like and the most cost-effective ways to improve it.
Read guide →Signs your home needs a full rewire
How to identify dangerous old wiring in a London home — rubber insulation, old fuse boards, aluminium wiring — and what a rewire costs.
Read guide →Bathroom renovation costs London 2025
From a £3,000 suite swap to a £20,000+ wet room — what each budget buys and what drives bathroom renovation costs in London.
Read guide →Loft conversion costs London 2025
Velux from £35,000, dormer from £45,000, mansard from £70,000. A complete breakdown of loft conversion costs and what affects the final price.
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