Understand the job, avoid mistakes.
Practical explanations for measuring, choosing materials, managing energy use and planning renovation work with better judgement.
Explore guides
Choose a topic or search for a specific problem. The English library now covers the main calculators, materials, energy and maintenance topics.
Cost to paint an apartment in Spain
What changes the price and how to compare painting quotes.
Renovation · CostBathroom renovation cost in Spain
Line items, a 5 m² example and what to ask for in writing.
Renovation · CostKitchen renovation cost in Spain
Cabinets, worktop, services and appliances split into useful line items.
Flooring · CostLaminate flooring installation cost in Spain
Material, labour, skirting, subfloor and a 60 m² example.
Diagnosis · DampCondensation or water ingress?
What to observe before painting, sealing or buying a dehumidifier.
Renovation · HiringWhat a professional renovation quote should include
Measurements, line items, materials, exclusions, schedule and payment terms.
Flooring · ChoiceAcoustic insulation under flooring: what to check
Understand impact noise, underlay compatibility, compression and thermal resistance before choosing acoustic insulation beneath a floating floor.
Read guide → Renovation · BudgetingHow to calculate the cost of a small renovation
Build a usable small-renovation budget by separating materials, consumables, labour, waste, transport and contingency instead of relying on one total figure.
Read guide → Flooring · MaterialsHow to choose tiles for bathrooms and kitchens
Choose bathroom and kitchen tiles by intended use, slip behaviour, water exposure, format, substrate and maintenance rather than appearance alone.
Read guide → Tools · BuyingHow to choose a laser distance meter for home and renovation work
Compare laser distance meters by accuracy, repeatability, measuring reference, useful functions and real indoor range before paying for specifications you may not use.
Read guide → Water · PlanningHow to plan a simple drip irrigation system
Plan a small drip irrigation system by grouping plants, checking emitter flow, estimating litres per session and maintaining filters, lines and connections.
Read guide → Diagnostics · CarOBD2 basics: what you can read and what a fault code does not mean
Use an OBD2 reader as a diagnostic starting point: record codes and freeze-frame data, relate them to symptoms and avoid replacing parts from a code name alone.
Read guide → Paint · BuyingPaint price: how to compare cost, coverage and quality
Compare paint by finished-area cost, coverage, number of coats, primer needs and room requirements instead of judging value from tin price or price per litre alone.
Read guide → Smart home · AutomationUseful sensors for getting started with a smart home
Start a useful smart home with sensors that solve specific problems, fit one ecosystem and still behave predictably when the internet or a cloud service is unavailable.
Read guide → Tools · InspectionBorescope camera: practical uses for home repairs
Use a borescope or inspection camera to look into accessible cavities safely, choosing the right probe diameter, focus distance, cable type and lighting.
Read guide → Renovation · CostFull apartment renovation cost in Spain
Move beyond €/m² and compare services, kitchen, bathroom and windows.
PaintHow to calculate how much paint you need
Area, openings, coats, coverage, margin and common mistakes explained with a complete example.
EnergyCalculate an appliance’s electricity consumption
Convert watts and hours of use into kWh and euros without common mistakes.
PaintHow to prepare a wall before painting
Cleaning, repairs, sanding and primer before the first coat.
EnergyHow to use air conditioning with more controlled energy consumption
Understand which variables increase air-conditioning electricity use and how to compare habits using your own data.
EnergyHow to calculate and reduce LED lighting consumption
Add up all lighting points and estimate real electricity cost from wattage and hours of use.
MaterialsHow to calculate tiles, pieces, boxes and waste
Calculate tile quantities from area, tile format, pieces per box and a realistic waste allowance.
MaterialsHow to calculate laminate flooring, waste and boxes
Calculate square metres, waste and full boxes of laminate flooring with a practical margin.
MaterialsHow to calculate concrete for a slab
Convert length, width and thickness into cubic metres and estimate mix weight, bags and purchase quantity.
MaterialsHow to calculate mortar: kilograms, bags and waste
Estimate mortar from area, layer thickness and the product consumption stated in its technical data sheet.
PaintHow to calculate how many wallpaper rolls you need
Calculate wallpaper rolls using wall height, roll dimensions and pattern repeat rather than area alone.
MaterialsHow to calculate skirting board and the number of pieces to buy
Turn a room perimeter into linear metres, complete lengths and a realistic waste allowance.
EnergyHow much electricity does a heat pump use?
Relate heating demand, COP, operating hours and electricity price to estimate heat-pump running cost.
PaintHow to control humidity at home before painting or renovating
Distinguish air humidity from moisture in materials and avoid hiding a damp problem before finding the cause.
EnergyHow much does an electric shower cost to run?
Calculate kWh per shower and monthly electricity cost from heater power and shower duration.
EnergyHow much electricity does a microwave use?
Estimate microwave electricity consumption using input power and real minutes of operation.
EnergyHow much electricity does a computer use?
Estimate desktop or laptop electricity consumption and understand the effect of GPU load, workload and hours of use.
PaintHow to check a wall before drilling
Understand what wall scanners can detect, what can confuse them and why a detector is never an absolute guarantee.
MaintenanceHow to detect small water leaks at home
Use visual signs, meter checks and leak sensors to catch small water losses before they become major damage.
PaintHow to choose interior paint for each room
Choose interior paint by room use, washability, sheen, moisture exposure and substrate rather than colour alone.
MaterialsHow to choose laminate flooring: use class, water and subfloor
Check wear class, water resistance, locking system and subfloor requirements before buying laminate flooring.
MaterialsHow to choose vinyl flooring: SPC, LVT, water and subfloor
Understand rigid SPC, LVT, wear layers and subfloor preparation before choosing vinyl flooring.
MaintenanceBasic split air-conditioner cleaning: what you can safely check
Filters, accessible dust and visible drainage can be maintained at home without opening the refrigerant circuit.
EnergyHow to measure an appliance’s real electricity consumption
Use a plug-in energy meter to move from estimated wattage to measured kWh and running cost.
EnergyLux and lighting: how to tell if a room has enough useful light
Understand lumens versus lux and measure the light that actually reaches your work surface.
MaterialsHow to prepare a subfloor before installing laminate or vinyl
Check flatness, moisture, cleanliness and stability before laying laminate or vinyl flooring.
Turn what you learned into a plan
Combine guides and calculators to prepare measurements, materials, cost, steps, tools and a checklist.