Knowledge Base
Property advice that actually helps
Researched, UK-specific guides for every stage of homeownership — from buying and surveys to retrofit, planning and major works.
Energy & RetrofitExternal Wall Insulation Installation and Retrofit Costs
External wall insulation (EWI) in the UK typically costs £8,000–£22,000 for a semi-detached home, depending on wall area, insulation type, and render finish. Funding under ECO4 or the Great British Insulation Scheme may cover some or all costs for eligible households. Grant-funded work must comply with PAS 2030 installation standards and be coordinated under PAS 2035 by a qualified retrofit coordinator.
Energy & RetrofitSolar Battery Storage Systems: Benefits and Comparison of Options
A solar battery storage system captures surplus electricity from your solar panels and stores it for use in the evenings, overnight, or on cloudy days. Most UK home systems store 5–15 kWh and cost approximately £2,000–£6,000 installed, helping reduce grid dependence and maximise the value of your solar generation.
Energy & RetrofitEnergy Efficiency Market Trends and UK Housing Performance Report
The UK housing stock remains one of the least energy-efficient in Europe, with more than half of homes rated EPC band D or below. Government retrofit schemes, tightening rental EPC requirements, and growing buyer demand for lower running costs are reshaping the market, making energy performance an increasingly important factor in property value and saleability.
Energy & RetrofitWinterising Your Central Heating System
Winterising a UK central heating system involves bleeding radiators, checking system pressure, topping up corrosion inhibitor, and arranging a Gas Safe registered engineer's annual boiler service before the heating season begins. For properties left unoccupied, a frost protection setting is usually sufficient; a full drain-down carries risks and should be planned carefully.
Energy & RetrofitHeating System Replacement: Boiler and Renewable Energy Options
When replacing a heating system in the UK, a new gas boiler must comply with Boiler Plus (Part L) and be fitted by a Gas Safe registered engineer. Heat pump installations require an MCS-certified contractor and may qualify for a £7,500 Boiler Upgrade Scheme grant from Ofgem. The right technology depends on your property's insulation levels; a PAS 2035 Retrofit Assessment is recommended before committing to any low-carbon upgrade.
Energy & RetrofitBuying guide: choosing the best air source heat pump for your home
Choose an air source heat pump by matching output to your home's BS EN 12831 heat loss calculation — not floor area alone. An MCS-accredited installer must carry out this assessment before system selection. Key factors include insulation levels, hot water demand, flow temperature compatibility, and whether your existing radiators can work efficiently at 45–55°C.
Energy & RetrofitHow Solar Power Technology Works: Technical Fundamentals
Solar panels use photovoltaic cells to convert sunlight directly into DC electricity, which an inverter then converts to 230V AC for household use. Panel efficiency typically ranges from 17% to 23%, and real-world UK output is usually 10–20% below the rated peak figure due to temperature, shading, and diffuse light conditions.
Energy & RetrofitInfrared Heating System Installation and Running Costs
Infrared heating panels supply heat through radiant energy rather than warming air, making them efficient in well-insulated spaces. In the UK, panels typically cost £150–£600 each to supply, with hardwired installation adding £50–£150 per panel. Running costs depend heavily on electricity tariffs and usage hours; at current Ofgem rates, a modestly sized system may cost more per year than gas central heating.
Energy & RetrofitInsulation Installation and Assessment Services
A home insulation assessment identifies the most appropriate insulation type for your property and checks for moisture risk before work begins. Common options include cavity wall, solid wall (internal or external), loft, and floor insulation. Grant funding is available through ECO4 and the Great British Insulation Scheme for eligible households. Always use a TrustMark-registered installer.
Energy & RetrofitIntegrating Solar Panels with Combi Boiler Systems: Feasibility and Requirements
Combi boilers heat water on demand without a hot water storage cylinder, making direct solar thermal integration impractical. The most straightforward workaround is solar PV panels combined with a power diverter, routing surplus electricity to a separate hot water cylinder. Full solar thermal integration requires replacing the combi boiler with a system boiler and adding a twin-coil cylinder.
Energy & RetrofitWhy Your Home Feels Cold and How to Improve Thermal Comfort
A home that feels cold despite adequate heating is usually losing warmth through poorly insulated walls, a draughty roof or floor, single glazing, or a heating system that needs balancing or servicing. Identifying the main source of heat loss — through a room-by-room check or a professional thermographic survey — is the first step to choosing the right fix.
Energy & RetrofitElectric Versus Gas Boiler Systems: A Practical Comparison
Electric boilers convert nearly all electricity into heat (98–99% efficiency) but electricity costs roughly 3–4 times more per kWh than gas, making running costs higher in most UK homes. Gas boilers are currently cheaper to run but require Gas Safe registered engineers and annual servicing. The right choice depends on your energy tariff, property insulation level, and long-term plans for the heating system.