📚 PresupuestAPP Academy
Construction quoting guides for tradespeople
Learn to quote like a professional: what every quote must include, how to calculate the price, which VAT rate applies and the mistakes that cost the most money — trade by trade.
Guides by trade
Electrical work quote
What to include, how to price it, VAT and mistakes to avoid for electricians.
Plumbing quote
What to include, how to price it, VAT and mistakes to avoid for plumbers.
Bricklaying quote
What to include, how to price it, VAT and mistakes to avoid for bricklayers.
Painting quote
What to include, how to price it, VAT and mistakes to avoid for painters.
Full renovation quote
What to include, how to price it, VAT and mistakes to avoid for general contractors.
Locksmith quote
What to include, how to price it, VAT and mistakes to avoid for locksmiths.
Carpentry quote
What to include, how to price it, VAT and mistakes to avoid for carpenters.
HVAC & air-conditioning quote
What to include, how to price it, VAT and mistakes to avoid for HVAC installers.
Gardening and landscaping quote
What to include, how to price it, VAT and mistakes to avoid for gardeners and landscapers.
Plastering and stucco quote
What to include, how to price it, VAT and mistakes to avoid for plasterers.
Roofing and waterproofing quote
What to include, how to price it, VAT and mistakes to avoid for roofers and waterproofers.
Kitchen installation quote
What to include, how to price it, VAT and mistakes to avoid for kitchen fitters.
Invoicing, VAT and payments
How to get paid and avoid bad debt
Deposits, staged payments and how to chase.
VAT on renovations: 10% or 21%
When each rate applies and the 40% rule.
How to quote a construction job step by step
Scope, breakdown, margin and contingencies.
How to calculate your labour rate
Your real cost per hour and rates by trade.
Construction quote template
What to include and an example structure.
Quote vs invoice
Differences, legal standing and when to use each.
Credit note / corrective invoice
When and how to correct an issued invoice.
Verifactu for self-employed tradespeople
What it is, who it applies to and how to comply (Spain).
Tax-deductible expenses for the self-employed
What you can deduct in construction and the requirements.
Registering as self-employed
Tax authority, social security, trade classification and flat-rate options.
How to write an invoice
Required fields, numbering, VAT and income tax withholding.
Bathroom renovation quote
What it covers and indicative prices.
Kitchen renovation quote
Line items, prices and breakdown.
Interim valuations
Invoicing by progress on long projects.
How much does a flat renovation cost?
Price per m² by type of renovation.
How much does it cost to paint a flat?
Price per m² and what is included.
How much does air conditioning cost?
Split unit, multi-split and ducted systems.
Pro-forma invoice
What it is and how it differs from a real invoice.
Quarterly VAT return
What it is, when it is due and how it is calculated.
How much does a roof repair cost?
Repairs, waterproofing and full re-roofing.
How much does an electrical installation cost?
Per point, consumer unit and certification.
How to write a delivery note
What it is and how it differs from an invoice.
Construction contract
What it must include to protect you.
Public liability insurance
What it covers and how much it costs.
How much does window replacement cost?
PVC, aluminium or timber.
How much does plasterboard cost to install?
Partition walls, dry-lining and ceilings.
How much does a plumber charge?
Per hour, call-outs and emergency rates.
How to get renovation clients
Speed, reviews and follow-up.
Sick leave for the self-employed
When, how much and the contribution.
From theory to practice
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