How to choose a trustworthy builder
A good builder is the difference between a smooth renovation and a nightmare project. This guide summarises the criteria technical teams use to assess a firm — and the red flags to filter out before signing.
1. Experience and track record
- Real years of activity in the sector
- Portfolio of similar projects
- Specialisation in your type of works
- Recognitions and certifications
2. Licences and insurance
- Active business activity licence
- Professional liability insurance
- Ten-year damage guarantee (new build and major rehabilitations)
- Chartered technicians in-house or on stable partnership
3. Transparent quotes
- Detailed quote by trade
- Materials and finishes listed with brand and model
- Timelines with milestones
- Clear, realistic payment terms
4. References and opinions
- Contactable references from previous clients
- Visits to completed projects where possible
- Online reviews and ratings
- Verifiable testimonials (not just posted on the website)
5. Qualified technical team
- Chartered architect for project and site management
- Building surveyors and technicians with specific training
- Health & safety coordinator
- Skilled personnel for key trades
6. Communication and service
- Fluid, regular communication with a clear contact
- Site reporting (photos, progress, timeline)
- Availability for questions and site visits
- After-sales service and warranty support
7. Red flags
- Unjustified extremely low quotes
- Large upfront payment requests
- Missing licences or valid insurance
- Pressure to sign immediately
- No verifiable references
- Poor or evasive communication on technical questions
Written by: PROYECTOS MÁLAGA technical team — chartered architects and technicians. · Last updated: