Building decarbonisation

The operating system for building decarbonisation

RetrofitOS connects project design, delivery, compliance and consumer protection into a single operating platform — so you can run retrofit programmes with visibility, control and confidence.

Design Deliver Comply Protect
Retrofit and building stock — visual from RetrofitOS pitch materials.

Every building needs upgrading

Millions of residential, commercial and public sector buildings must improve energy performance — yet delivery today remains constrained.

Fragmented technology

Point tools that rarely share context across the programme.

Complex supply chains

Many handovers, little shared operational truth.

Compliance requirements

Evidence scattered across systems — compliance risk grows.

No operational infrastructure

Nothing joins design, delivery, assurance and protection end to end.

Retrofit delivery is fragmented

Today’s retrofit delivery relies on disconnected point solutions — each solving one problem, none connecting the whole. The result: manual administration, repeated data entry, limited programme visibility and elevated compliance risk.

Why infrastructure matters

The retrofit industry doesn’t have a software problem.
It has an infrastructure problem.

RetrofitOS provides the operating infrastructure for retrofit delivery — connecting processes and participants so programmes can run at scale.

  • Operations

    Reduced admin overhead and fewer repeated workflows.

  • Visibility

    Full programme visibility from mobilisation to completion.

  • Assurance

    Stronger compliance posture with connected evidence and oversight.

The RetrofitOS platform

A layered operating platform connecting every participant and every process — from programme design to building upgrade delivery, compliance and consumer protection.

Platform overview diagram from RetrofitOS materials.

Outcomes

Building upgrades delivered

Homes upgraded and energy savings achieved — measured in one place.

Operating layer

Programme to protection

Programme management, delivery, compliance, energy upgrade workflows and consumer protection — unified.

Ecosystem

Participants

Tier 1 contractors, PAS installers, Local Authorities, social housing providers and more — on one platform.

Faster mobilisation
Reduced admin overhead
Full programme visibility
Stronger compliance

One platform. Every process.

Point solutions optimise silos. RetrofitOS provides infrastructure for delivering retrofit programmes at scale.

Fragmented point solutions

  • Design tools — isolated, no programme link.
  • Installer platforms — manual workflows, poor oversight.
  • Compliance systems — disconnected, compliance risk.
  • Consumer protection — separate, siloed data.

RetrofitOS platform

Infrastructure for programme-scale delivery

  • 1 Design — programme-linked technical and programme design.
  • 2 Delivery — coordinated execution and handovers.
  • 3 Compliance — connected evidence and oversight.
  • 4 Consumer protectionintegrated assurance, not a bolt-on.
Programme and delivery context — illustration from RetrofitOS materials.

The RetrofitOS platform suite

Modular capabilities that share the same operating layer — so teams adopt what they need without losing the whole-programme picture.

Explore the Consumer Protection Platform

RetrofitOS Programme

Programme management for Tier 1 contractors.

RetrofitOS Contractor

PAS 2030 workflows for installers.

RetrofitOS Coordination

PAS 2035 retrofit coordination workflows.

RetrofitOS Energy

Renewable installation planning and delivery.

RetrofitOS Assurance

Consumer protection integrations.

Learn more

RetrofitOS Housing

Housing providers · Local Authorities

Residential retrofit programmes at portfolio scale.

RetrofitOS Commercial

Commercial property owners · Asset managers

Corporate decarbonisation programmes across estates.

Both editions run on the same RetrofitOS platform.

Connecting the entire retrofit supply chain

RetrofitOS connects every participant involved in retrofit delivery — from Tier 1 contractors to social housing providers and Local Authorities.

Principal contractors & subcontractors
Retrofit coordinators
Housing providers & Local Authorities
Commercial owners & facilities managers

The next phase of retrofit delivery

The Warm Homes Plan and comparable programmes will require coordinated delivery across thousands of projects simultaneously. The sector needs operational infrastructure to manage that scale — RetrofitOS provides it.

The building decarbonisation opportunity

Three major market segments each require coordinated delivery, supply chain management and compliance oversight. RetrofitOS provides the infrastructure to support all three.

Infrastructure for building decarbonisation

RetrofitOS enables organisations to design, coordinate and deliver energy upgrades across entire building portfolios — at scale.

Design Coordinate Deliver Protect

Start a conversation

Tell us about your retrofit programmes and we’ll follow up — or use the dedicated contact page for options.