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15,000+
Measures installed
6,000+
Properties delivered
Tier 1
Consortium lead contractor
Multi-award
Winning programme
About Us
Our story, work & identity
RetrofitScore is the trading name of Yield Climate Ltd — an award-winning sustainability consulting, testing, and retrofit company headquartered in Lancashire and operating across the UK.
We deliver end-to-end retrofit and decarbonisation services for residential portfolios, local authorities, housing associations, and commercial property owners — combining technical expertise with practical, funded delivery at scale.
Our Tier 1 consortium model means we take complete ownership of every programme — from initial energy assessment and scheme design through to installation, compliance sign-off, and ongoing monitoring. One team. Zero gaps.
Based in Padiham, Lancashire
Tier 1 consortium lead contractor
Decades of in-house trade expertise
Operating nationwide
Multi-award winning programmes
Residential & commercial delivery
Our Mission
To deliver warmer, lower-carbon homes and buildings across the UK — making retrofit and decarbonisation simple, accountable, and accessible for every client, from individual landlords to national housing programmes.
Reduce & retrofit
A built environment where every home and building performs efficiently, every retrofit programme is measured and trusted, and carbon reduction is built into every decision — from design through to delivery and beyond.
Our Values
Accountability in everything we deliver. Technical rigour backed by accreditation. Respect for the residents and communities we work with. And a commitment to getting the advice right — every time.
Our Accreditations
Certified, accredited, and registered across every discipline
Our accreditations span residential and commercial retrofit, renewables, energy assessment, and carbon markets — giving clients confidence that every element of delivery meets the relevant national standard.
TrustMark
Government-endorsed quality scheme — lodgement on every retrofit project we deliver.
PAS 2035:2023
Fully qualified Retrofit Coordinators managing compliance on every residential scheme.
PAS 2030:2023
All fabric and heating installations delivered to PAS 2030:2023 by certified teams.
PAS 2038:2021
Commercial retrofit delivered to PAS 2038:2021 — the standard for non-domestic buildings.
MCS Certified
MCS certification for all Solar PV, battery storage, and Air Source Heat Pump installations.
ESOS Phase 3
ESOS Lead Assessors qualified to conduct and submit Phase 3 energy audits.
ECO4 Registered
Registered ECO4 contractor — delivering under the Energy Company Obligation scheme.
Gold Standard / Verra VCS
Voluntary carbon market brokering aligned to Gold Standard and Verra VCS registry standards.
Case Studies & Work
Knowledge hub — see our work
Cosy Homes in Lancashire — CHiL Programme
RetrofitScore has been Tier 1 principal delivery partner for the Cosy Homes in Lancashire programme — one of the UK's largest and most awarded local authority-led retrofit schemes. Over 15,000 measures installed, 6,000+ properties delivered, all submissions made on time to DESNZ and Salix — with social value and carbon savings tracked and reported throughout.
15,000+
Measures installed
6,000+
Properties delivered
Multi-award
Winning programme
On-time
All submissions
Meet the Team
The expertise behind every programme
Our team brings together decades of combined experience across retrofit coordination, energy assessment, commercial decarbonisation, and carbon markets — all working under one roof.
Retrofit Coordinators
PAS 2035:2023 Qualified
Managing compliance, MTIP production, and technical oversight on every residential scheme.
PAS 2035:2023
Retrofit Coordinators
Fully qualified Retrofit Coordinators managing compliance on every residential scheme.
PAS 2030:2023
Retrofit Coordinators
All fabric and heating installations delivered to PAS 2030:2023 by certified teams.
PAS 2038:2021
Retrofit Coordinators
Commercial retrofit delivered to PAS 2038:2021 — the standard for non-domestic buildings.
MCS Certified
Retrofit Coordinators
MCS certification for all Solar PV, battery storage, and Air Source Heat Pump installations.
ESOS Phase 3
Retrofit Coordinators
ESOS Lead Assessors qualified to conduct and submit Phase 3 energy audits.
ECO4 Registered
Retrofit Coordinators
Registered ECO4 contractor — delivering under the Energy Company Obligation scheme.
Gold Standard / Verra VCS
Retrofit Coordinators
Voluntary carbon market brokering aligned to Gold Standard and Verra VCS registry standards.
Resident Testimonials
What people say after we deliver
Handover is tailored to every household. These are the voices from properties we've improved across Lancashire.
ASHP · Internal wall insulation · Loft
"It's the first time the house has been warm in years. I was sceptical about the heat pump but it was a great decision."
Sondra Woodley — Lancashire
Solar PV · ASHP · Room in roof insulation
"The team have been excellent throughout. They feel like family — and the energy bills have dropped significantly."
Neil Pickup — Morecambe
ASHP · Internal wall insulation · Windows & doors
"Cosy Homes have been absolutely amazing. I am so pleased that they came to me — the difference is remarkable."
Betty Whiteside — Thornton Cleveleys
Solar PV · ASHP · Room in roof · Solar battery
"If someone is thinking about applying — go ahead without hesitation. They've been so good from start to finish."
Jean Roberts — Lancashire