Energy Performance Certificate: How to Improve Your Home’s Efficiency

Energy Performance Certificate: How to Improve Your Home’s Efficiency

Energy efficiency not only reduces your bills — it also increases your property value. At Promocat, we explain everything about energy performance certification and how to improve it.

What Is the Energy Performance Certificate?

It is a mandatory document that rates a home’s energy consumption on a scale from A (most efficient) to G (least efficient). It is required to sell or let a property.

Impact on Property Value

Studies show that:

  • Homes with an A or B rating sell for up to 10% more
  • They let for 8% above market rate
  • They reduce energy costs by up to 60%
  • They are more attractive to environmentally conscious buyers

Insulation Improvements

Insulation is the most cost-effective investment:

  • Windows: Double or triple glazing, 25-30% savings
  • Facades: External thermal insulation (ETICS/SATE)
  • Roofs: Insulation in ceilings and lofts
  • Floors: Insulation on ground floors

Efficient Climate Control Systems

Technology that makes the difference:

  • Air-source heat pumps: Heating and cooling with minimal consumption
  • Heat pumps: Efficiency up to A+++
  • Underfloor heating: Comfort and energy savings
  • Inverter split units: For small or medium homes

Renewable Energy

Investment that pays back in 7-10 years:

  • Solar panels: Self-consumption and 70% savings
  • Solar thermal: For domestic hot water
  • Micro wind: In areas with constant wind
  • Batteries: Storage for maximum efficiency

LED Lighting

Simple change with great impact:

  • 80% reduction in lighting consumption
  • 10 times longer lifespan
  • Payback in under 2 years
  • Compatible with home automation

Efficient Appliances

Look for A+++ rating on:

  • Fridge and freezer
  • Washing machine and tumble dryer
  • Dishwasher
  • Oven and hob

Home Automation and Control

Technology optimises consumption:

  • Smart thermostats
  • Automated blind control
  • Presence detection
  • Real-time consumption meters

Grants and Subsidies

Take advantage of available support:

  • Next Generation EU Recovery Plan
  • Income tax deduction for energy improvements
  • Regional and municipal grants
  • Preferential financing

Return on Investment Calculation

Typical investment vs savings:

  • Windows: €5,000-10,000, payback 8-12 years
  • Insulation: €8,000-15,000, payback 10-15 years
  • Solar panels: €6,000-12,000, payback 7-10 years
  • Air-source heat pump: €10,000-15,000, payback 8-12 years

How We Help at Promocat

We offer:

  • Energy certificate management
  • Advice on cost-effective improvements
  • Contact with certified installers
  • Grant application support

Want to improve your home’s efficiency? Contact our property sustainability experts.