Home Retrofit Services in Bromley, London & South East

Improve Your Energy Efficiency with Expert Retrofit Contractors

Contraxo is a trusted retrofit specialist based in Bromley, offering energy-efficient home upgrades across London, Kent, and surrounding areas. We help homeowners, landlords, and housing providers transform existing buildings into sustainable, low-energy homes.

Whether you’re looking to improve your EPC rating, reduce heating bills, or future-proof your property, our fully managed home retrofit service ensures long-term comfort, performance, and savings.

What Is a Home Retrofit?

A retrofit is the process of improving an existing home’s energy performance by upgrading its insulation, windows, heating system, ventilation, and airtightness. It is one of the most effective ways to reduce energy costs, enhance indoor comfort, and cut carbon emissions.

Our retrofits follow best practices in whole-house retrofit planning and comply with PAS 2035 standards, ensuring each upgrade is safe, efficient, and fit for purpose.

Our Retrofit Services Include:

1. Whole-House Retrofit AssessmenT

We conduct a full retrofit assessment, including a condition survey, ventilation review, and energy performance analysis. This helps us create a tailored plan to improve your property’s efficiency and compliance.

2. Insulation Upgrades

We install:

Solid wall insulation
Loft and roof insulation
Cavity wall insulation
Underfloor insulation

These upgrades are key to reducing heat loss and improving energy efficiency.

3. Airtightness and Ventilation Systems

We seal gaps and improve airtightness to eliminate drafts. We also install MVHR (mechanical ventilation with heat recovery) systems to ensure fresh air without heat loss.

4. Energy-Efficient Windows & Doors

We supply and fit double- or triple-glazed windows and high-performance external doors to increase comfort, energy savings, and soundproofing.

5. Low Carbon Heating Solutions

We replace old gas boilers with air source heat pumps, high-efficiency gas boilers, or hybrid heating systems to reduce reliance on fossil fuels and support the UK’s net-zero targets.

Benefits of Energy Retrofit Upgrades

Cut heating bills by up to 60%
Improve EPC rating and property value
Eliminate damp, cold spots, and condensation
Boost thermal comfort and air quality
Reduce your carbon footprint
Meet future compliance standards (EPC C or higher)

Start Your Retrofit Today

Ready to improve your home’s energy performance? Contraxo offers a complete retrofit solution—from survey to installation. Whether you’re a homeowner looking to cut bills or a landlord needing EPC improvements, we’re here to help.