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The Batizzy blog

Tips on renovation, grants, picking the right pro, running a BTP business. Articles written by and for Belgian construction.

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Budget & financing5/9/20264 min read

Bathroom renovation prices in Belgium in 2026

What does a brand-new bathroom really cost in Brussels, Wallonia or Flanders? 2026 brackets, detailed line items and mistakes to avoid.

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Legislation & grants5/8/20264 min read

Vetting a building pro before signing: the BCE checklist

Before signing a quote with a craftsman in Belgium, 5 easy checks rule out 90% of scams. Our step-by-step method, free.

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Energy & insulation5/7/20264 min read

Roof insulation in Belgium: glass wool, PIR or cellulose wadding?

2026 comparison of the 3 most-used roof insulators in Belgium: R-value performance, price per m², lifespan, applicable Renolution grants.

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Legislation & grants5/6/20265 min read

PEB in Wallonia: understanding your score and going from E to C

The PEB is mandatory to sell or rent in Wallonia. Here is how to read the report, identify priority works and improve your score.

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Legislation & grants5/5/20265 min read

6% VAT in Belgium: conditions, examples and mistakes to avoid

When can you benefit from the reduced 6% VAT rate for your works in Belgium? Precise conditions, mandatory invoice mention, worked examples.

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Energy & insulation5/4/20265 min read

Heat pump or condensing boiler: which to choose in 2026?

Detailed comparison air-water heat pump vs gas condensing boiler in Belgium. Costs, grants, profitability by housing type.

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Pro tools5/3/20265 min read

7 mandatory mentions on a construction quote in Belgium

A non-compliant quote exposes the pro to penalties and the customer to disputes. 2026 legal checklist to draft a watertight Belgian construction quote.

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Budget & financing5/2/20266 min read

Architect prices in Belgium: scales and missions 2026

How much does an architect cost for a new home or a heavy renovation in Belgium? Order scales, partial or complete missions, worked examples.

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Pro tools5/2/20262 min read

5 levers to cut your admin costs (construction craftsmen)

Quotes, invoices, follow-ups, customer paperwork: we list 5 concrete tools to get back 5 hours a week without hiring.

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Energy & insulation4/22/20262 min read

Energy renovation grants in the Brussels Region 2026

Insulation, solar panels, heat pump: here are all the Brussels grants available in 2026, their amounts and how to combine them.

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Legislation & grants4/15/20262 min read

Peppol 2026 in Belgium: what every pro needs to know

From January 1, 2026, B2B electronic invoicing becomes mandatory in Belgium. Here is how to comply without stress.