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 & RetrofitInsulating Solid Masonry Walls Under Bay Windows: Technical Guidance
Insulating solid masonry walls under bay windows requires specialist detailing at angled wall faces, window reveals, and the bay floor and ceiling junctions. Internal wall insulation reduces floor area by up to 100 mm per treated face; external insulation needs careful junction flashing. A hygrothermal assessment is essential, and PAS 2035 applies to all funded retrofit work.
Improvement & BuildLiniar uPVC Windows: Performance, Durability, and Quality Assessment
Liniar uPVC window profiles are manufactured in the UK using multi-chambered, foamed frames. Correctly specified with argon-filled low-e double glazing, they can achieve whole-window U-values of around 1.2–1.4 W/m²K, meeting Building Regulations Part L. Performance and longevity are broadly good but depend heavily on installer quality and the glazing specification rather than the frame profile alone.
Energy & RetrofitPrefabricated Insulated Wall Forms: Permanent Insulation Solutions
Prefabricated insulated wall forms — including ICF and SIPs systems — deliver high thermal performance by combining permanent insulation with structural concrete or timber in a single wall assembly. For new build they routinely achieve Part L compliant U-values. For retrofit applications to solid-wall properties, a hygrothermal moisture risk assessment is essential before any system is installed.
Improvement & BuildGarden Tap Installation with Hot and Cold Water: Plumbing Options
Adding a cold garden tap is a common DIY project, but routing hot water outdoors requires a plumber to connect to your domestic hot water system and comply with the Water Supply (Water Fittings) Regulations 1999. A double check valve is legally required on any garden tap to prevent backflow, and all external pipework must be frost-insulated. Costs range from around £150 for cold-only to £350–£650 for a hot and cold installation.
Improvement & BuildSealing and Maintaining Historic Leaded Glass Windows: Preservation and Performance
Leaded glass windows are maintained using traditional linseed oil cement — not silicone or modern sealants, which prevent natural movement in the lead came. Annual inspection for bowing, cracked putty, and loose glass prevents progressive deterioration. Secondary glazing fitted inside the window reveal is the heritage-approved approach for improving thermal performance without altering the original panels.
Planning & Pre-BuildChanges to Loft Conversion Rules: Permitted Development and Planning Updates
In England, most loft conversions on standard houses qualify as Permitted Development under Class B of the GPDO 2015, allowing up to 40 cubic metres (terraced) or 50 cubic metres (detached or semi-detached) without a planning application — if conditions are met. Listed buildings, Conservation Areas, and flats are excluded. Building regulations approval is always required regardless of planning status.
Improvement & BuildGreenhouse Construction: Glass Versus Polycarbonate Materials
Glass transmits around 90% of available light and lasts indefinitely if unbroken, but insulates poorly and shatters into sharp fragments. Twin-wall polycarbonate is more impact-resistant and better insulated, but discolours over time. For UK gardeners prioritising maximum light and long-term durability, toughened glass is usually the better choice; polycarbonate suits exposed sites or those wanting better heat retention for year-round growing.
Energy & RetrofitHome Efficiency Improvements for Reducing Energy Bills
The most cost-effective UK home efficiency improvements are usually loft insulation, cavity wall insulation, draught-proofing, and upgrading heating controls. Government schemes including ECO4 and the Great British Insulation Scheme may cover costs for eligible households. Start with a whole-house assessment to prioritise measures in the right order — fabric improvements generally come before heating system upgrades.
Planning & Pre-BuildResidential Properties Built with Concrete Construction Methods
UK homes are built using several concrete methods: in-situ cast concrete, precast panel systems, insulating concrete formwork (ICF), and older non-traditional types such as Wimpey No-Fines and Laing Easiform. The right method depends on design intent, site conditions, planning constraints, and budget. Mortgage availability and survey requirements vary significantly between modern ICF builds and post-war non-traditional concrete types.
Energy & RetrofitSolar Energy Integration in Below-Ground Structures: Design and Feasibility
Below-ground structures cannot host solar panels on their own roofs but can use surface-mounted panels connected via cable runs, solar light tubes for daylighting, and battery storage. Feasibility depends on available surface area, orientation, and shading. A solar survey should assess the whole site before any installation, and MCS certification is required to qualify for the Smart Export Guarantee.
Buying & MovingManaging Delays with Removal Companies: Rights and Resolution
If a removal company is late, your rights depend on your contract and whether the company is BAR-registered. Under the Consumer Rights Act 2015, services must be completed within a reasonable time. If you suffer provable financial losses — hotel costs, storage fees — you can claim these. BAR members must offer Alternative Dispute Resolution if a complaint cannot be resolved directly.
Improvement & BuildRetaining Wall Installation: Cost, Design and Maintenance
A retaining wall holds back soil on a sloped or banked site. Most residential walls under 1 metre high can be built by a competent groundworker without building control approval, though anything taller or load-bearing should involve a structural engineer. Material choices, drainage design, and ground conditions all affect cost and longevity.