Blog · Trowel · Page 3

Designer and technician analysing the drawings of a health and safety study on the work table

Safety & OHS · Aug 3, 2026

Health and Safety Study: Keys and Drafting (2026)

Discover what the Health and Safety Study is, when it is mandatory, how it differs from the basic study, and how to draft it correctly.

Read article

Construction operative working at height fitted with a safety harness and clipped onto a lifeline

Safety & OHS · Aug 3, 2026

Working at height: regulations and safety measures (2026)

Guide to working at height: applicable regulations, collective and personal fall-protection systems, lifelines and safety protocols.

Read article

Technician and site manager reviewing the health and safety plan on site with drawings and hard hats

Safety & OHS · Jul 31, 2026

Health and Safety Plan on Site: Step-by-Step Guide (2026)

Learn how to draft and manage the Health and Safety Plan on site in line with Royal Decree 1627/1997 to avoid fines and unexpected stoppages.

Read article

Construction site safety management with workers and prevention equipment

Safety & OHS · Jul 31, 2026

Construction site safety: a complete guide to integrated management (2026)

The definitive guide to construction site safety: regulations, mandatory documentation, occupational risk management, PPE and coordination on site.

Read article

Workers and inspectors reviewing construction site safety regulations with personal protective equipment

Safety & OHS · Jul 30, 2026

Construction Site Safety Regulations in Spain (2026)

Complete guide to construction site safety regulations in Spain: Occupational Risk Prevention Act, health & safety plan, and digital documentary control.

Read article

Site manager reviewing a cumulative certification with the running total of measurements against the previous period in the technical office

Invoicing · Jul 21, 2026

Cumulative certification: what it is and how to invoice it (2026)

Learn what cumulative certification (certificación a origen) is in construction, how it is calculated against the previous period, and how to invoice it correctly.

Read article

Site manager reviewing a monthly public works progress certification alongside LCSP documentation on a construction site

Regulation & legal · Jul 20, 2026

Public works progress certifications: LCSP requirements (2026)

Learn how public works progress certifications work under Spain's Public Sector Contracts Act (LCSP): requirements, payment terms, and differences from private works.

Read article

Architect and site manager reviewing the final construction certificate alongside a progress certification in the technical office

Regulation & legal · Jul 17, 2026

Final Construction Certificate vs. Progress Certification (2026)

Understand the real difference between the final construction certificate and a progress certification: who signs each, what they are for, and when you need them.

Read article

Construction company administrator reviewing a progress certification and an invoice with VAT reverse charge in the technical office

Regulation & legal · Jul 16, 2026

Reverse charge VAT on construction progress certifications (2026)

Learn when the VAT reverse charge applies to construction progress certifications, how to invoice it correctly, and how to avoid penalties from the Spanish tax authority.

Read article

Cookie	Provider	Duration	Purpose
`trowel_cookie_consent_v1`	Trowel (first-party)	Persistent	Stores your cookie consent preference.
`trowel_culture_suggest_v1`	Trowel (first-party)	Persistent	Remembers we already suggested the local version of the site.
`trowel_demo_modal_v1`	Trowel (first-party)	Persistent	Remembers you dismissed the demo prompt so we don't repeat it.

Cookie	Provider	Duration	Purpose
`_ga`	Google	2 years	Anonymous user identifier.
`_ga_*`	Google	2 years	Google Analytics 4 session state.
`_gid`	Google	24 hours	Distinguishes users.

Learn from the industry.In 20 minutes a week.