Warmer Homes
Reduce heat loss through fabric, draughts, and inefficient systems.
Retrofit Services
Whole-house retrofit support for warmer, greener, and more energy efficient UK homes.
Retrofit Services
Sublime helps homeowners, landlords, and property managers improve existing homes through carefully planned retrofit services. We look at the whole property so EPC advice, assessment, coordination, installation, and air tightness testing can work together properly.
Explore Retrofit Services
Energy Performance Certificates (EPCs)
Understand your home energy rating and the improvements that can raise performance, comfort, and long-term value.
Retrofit Assessment
Start with a professional review of your property before choosing insulation, heating, ventilation, or renewable upgrades.
Retrofit Coordination
Keep retrofit works organised, properly sequenced, and focused on whole-home performance from assessment to completion.
Retrofit Installation
Professional installation support for the practical measures that make homes warmer, more efficient, and easier to control.
Air Tightness Testing
Find draughts, uncontrolled air leakage, and hidden heat loss routes that can undermine home comfort and retrofit performance.
Why Retrofit Matters
Better Planning
Choose measures in the right order so upgrades work together.
EPC Performance
Identify practical improvements that can support stronger energy ratings.
Lower Carbon Future
Prepare existing homes for efficient heating and renewable technologies.
Our Retrofit Process
1. Understand
We review your property, goals, EPC position, comfort issues, and current energy performance.
2. Plan
Sublime identifies suitable measures and considers risks such as damp, draughts, and ventilation needs.
3. Deliver
We support assessment, coordination, installation, and checks so the work follows a clear route.
Ready to Improve Your Home?
Book a free assessment with Sublime and get clear advice on the right retrofit route for your property.
FAQ's
Many customers begin with an EPC review or retrofit assessment so the property can be understood before installation work is planned.
Yes. Retrofit coordination helps plan multiple measures, installers, and work stages so the project is easier to manage.
Yes. Insulation and air tightness improvements should be considered alongside ventilation so the home remains healthy and comfortable.
Yes. We support homeowners, landlords, and property managers with EPC guidance, assessments, planning, and practical upgrades.
What Homeowners Have To Say...
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Sarah Wilson ★★★★★
Excellent company. I recently had retrofit assessment work completed by Sublime and could not fault them. The team was friendly, professional, and clear throughout. I would highly recommend them for retrofit services.
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James Harris ★★★★★
I was cautious about starting retrofit work, but Sublime made the process straightforward. They explained the assessment, EPC requirements, and next steps clearly, and I am really pleased with the results.
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Amelia Clarke ★★★★★
Thanks to the team at Sublime for improving the energy performance of my home. The work was completed quicker than expected, communication was excellent, and the service exceeded my expectations.
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Louis Parker ★★★★★
Great job. I was impressed with how the team communicated and the helpful advice they provided. The retrofit guidance was practical, professional, and tailored to my property.
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Olivia Morris ★★★★★
Professionalism at its best. The Sublime team carried out the assessment and planning with care, kept everything clear, and made the whole process feel simple.