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371 guides across 20 house files. Each one opens with an energy record: the file and stage, the question it answers, the evidence level and the first check. Page 5 of 10, guides 165 to 205.
File 03 - Home energy audits How to Read an Audit Report How audit reports are structured, how to find findings, evidence and priorities, and how to turn report language into decisions. File 01 - Home energy performance foundations How to Read an Energy Bill for Performance How to use a bill as performance evidence: kilowatt-hours, tariffs, readings and periods, without mistaking a bill for a rating. File 06 - Heating and heat pumps Hybrid Heating Systems What a hybrid system is: a heat pump working alongside a boiler, how the switch between them is decided, and where hybrids help or complicate. Educational only, not advice for a particular home. File 17 - Costs, payback and finance Illustrative Cost Ranges, Explained Why published cost ranges are wide, what moves a job within a range, and how to use a range without mistaking it for a quote. Educational guidance only; all figures here are illustrative, not quotes. File 16 - Installers and professionals Installer Accreditation Schemes, in General What accreditation schemes actually certify, what they do not guarantee, and how to read a scheme claim on a quote or website. Educational guidance only, not advice for a specific home. File 16 - Installers and professionals Installer After-Sales Support What good after-sales support from an installer looks like, and how to judge it before you need it. Educational guidance only, not advice for a specific home. File 16 - Installers and professionals Installer Guarantees, Explained What installer guarantees, warranties and insurance-backed cover actually mean, and how to compare them. Educational guidance only, not legal advice. File 16 - Installers and professionals Installer Health and Safety, in General Health and safety on home energy jobs in general: what a responsible installer plans, and what occupants should expect. Educational guidance only, not safety advice for a specific job. File 16 - Installers and professionals Installer Subcontractors How subcontractors fit into home energy jobs: who is responsible, what to ask, and where accountability can blur. Educational guidance only, not legal advice. File 16 - Installers and professionals Installer vs Assessor Independence Why the person judging a home should be separate from the person selling the fix, and when combined roles are acceptable. Educational guidance only, not advice for a specific home. File 16 - Installers and professionals Installers and Professionals, Explained Who does what in home energy work, from assessors and installers to coordinators and consultants, and how to tell a sound professional process from a sales pitch. Educational guidance only, not advice for a specific home. File 05 - Insulation and fabric first Insulating a Flat How flat insulation differs from house insulation: shared walls, limited external surfaces, communal decisions, and measures a flat owner can actually carry out alone. File 05 - Insulation and fabric first Insulation and Airtightness Together How insulation and airtightness complement each other, why one without the other underperforms, and how to detail both in a single fabric plan. File 05 - Insulation and fabric first Insulation and Fabric First What insulation and fabric first mean together, which fabric measures usually come first, and how to judge a fabric plan for a particular home. File 05 - Insulation and fabric first Insulation and Moisture Risk How insulation changes moisture movement in walls, roofs and floors, the condensation risks that follow, and the assessments and details that manage them. File 05 - Insulation and fabric first Insulation and Sound How insulation affects sound in a home, what it can and cannot do for noise, and how thermal and acoustic design differ even when they use similar materials. File 05 - Insulation and fabric first Insulation Fire Safety, in General How insulation and fire safety interact in general terms: material behaviour, system compliance, cavity barriers and escape routes, without product-specific fire advice. File 05 - Insulation and fabric first Insulation for Conservatories Why conservatories are hard to insulate well, what can realistically be improved, and when a conservatory should be treated as a separate space rather than a heated room. File 05 - Insulation and fabric first Insulation for Garage Conversions How garage conversion insulation differs from ordinary room insulation, including floors, walls, roofs, thermal bridging and the change from unheated to heated space. File 05 - Insulation and fabric first Insulation for Loft Conversions How loft conversion insulation differs from ordinary loft insulation, including rafter build-ups, headroom, ventilation and building regulation considerations in general. File 05 - Insulation and fabric first Insulation for Timber-Framed Homes How timber-framed walls, floors and roofs are insulated differently, why moisture in timber is the key risk, and what detailing protects the frame. File 20 - Checks, mistakes and maintenance Insulation Inspection Checks How to inspect installed insulation over time: what to look for, where, and when to call a professional. Educational guidance only, not a survey manual. File 05 - Insulation and fabric first Insulation Materials, Compared How common insulation materials differ in thermal performance, moisture behaviour, fire, thickness and suitability, without ranking one material as best for every job. File 20 - Checks, mistakes and maintenance Insulation Mistakes The specific mistakes that spoil insulation jobs: gaps, compression, moisture and detailing failures. Educational guidance only, not advice for a specific home. File 05 - Insulation and fabric first Insulation Thickness and U-Values What U-values mean, how thickness, material and build-up combine to produce them, and why thicker is not always better beyond a point. File 05 - Insulation and fabric first Insulation Warranties What insulation warranties and guarantees typically cover, what they exclude, how long they last in general terms, and how to keep a warranty valid. File 04 - Reading your energy rating Keeping Rating Evidence What rating evidence to keep, how to organise it, and how a good evidence file helps future sales, lettings, work and reassessments. File 19 - Landlords, buyers, sellers and tenants Landlord Improvement Planning How landlords plan energy improvements across a portfolio or a single let: sequencing, voids, tenants and evidence. Educational guidance only, not legal advice. File 19 - Landlords, buyers, sellers and tenants Landlords, Buyers, Sellers and Tenants How energy performance touches each side of a move: what buyers should check, sellers should evidence, landlords must do and tenants can ask. Educational guidance only, not legal advice. File 19 - Landlords, buyers, sellers and tenants Leasehold Energy Questions Energy questions in leasehold homes: what the lease allows, what the freeholder controls, and how block work is decided. Educational guidance only, not legal advice. File 18 - Energy performance by home type Listed and Heritage Homes Energy improvement in listed and heritage homes: consent first, fabric-sensitive measures, and reversible choices. Educational guidance only, not advice for a specific home. File 05 - Insulation and fabric first Loft Insulation, Explained How loft insulation works, the difference between ceiling-level and rafter-level insulation, and what to check in a pitched, flat or converted loft. File 18 - Energy performance by home type Maisonettes and Energy Energy patterns in maisonettes: two-storey flats with their own stairs, shared walls and mixed responsibilities. Educational guidance only, not advice for a specific home. File 09 - Whole-house retrofit planning Measuring Retrofit Results How to tell whether retrofit worked: baselines, meter readings, temperatures, airtightness and comfort, measured fairly across seasons. Educational only, not advice for a particular home. File 08 - Windows, doors and ventilation Mechanical Ventilation With Heat Recovery How MVHR works, when it suits an airtight home, and what ducting, filters, controls and maintenance it requires. Educational only, not advice for a particular home. File 13 - Minimum energy performance standards MEPS and Condominium Buildings How MEPS work for condominium and multi-owner buildings, where common parts, individual units and collective decisions interact. File 13 - Minimum energy performance standards MEPS and Energy Poverty, in General How MEPS interact with energy poverty, why worst-performing homes and low-income households need joint attention, and what fair design looks like. File 13 - Minimum energy performance standards MEPS and Heritage Buildings How MEPS treat listed, protected and historic buildings, why adapted requirements exist, and how energy improvement can respect heritage value. File 13 - Minimum energy performance standards MEPS and Owner-Occupiers Why MEPS rarely apply to owner-occupied homes in the same way as to rented homes, and what trajectories, triggers and support mean for owners. File 13 - Minimum energy performance standards MEPS and Renovation Passports How renovation passports relate to MEPS, what a passport adds to a standard, and how staged plans help owners meet future floors. File 13 - Minimum energy performance standards MEPS and Renovation Triggers How renovation work interacts with MEPS, when work triggers a standard, and how to sequence renovation so that MEPS compliance and good building practice align.