About IRT

Helping Housing Providers Improve Energy Efficiency Since 2002

Founded in January 2002, IRT has surveyed over 500,000 homes and 20,000 commercial buildings across the UK—ranging from social housing to high-profile sites such as Buckingham Palace, the White House, the Reichstag, and the EU Headquarters

Our flagship products—including infrared thermal imaging and the proprietary DREam software—provide clarity, efficiency, and measurable energy savings.

A Trusted Innovation Partner

From early venture capital and awards like SMART and VIBES to support from The Carbon Trust and Centrica’s Ignite accelerator, innovation has always driven us.

Comprehensive Services

  • Thermal Imaging Surveys
    Identify building fabric defects before they become big problems—saving time and providing vital insights into building energy efficiency issues.

  • DREam Retrofit Software
    Our cloud-based engine quickly models carbon-reduction options, highlights funding opportunities and centralises all project data to support retrofit decisions.

  • Data analysis services and retrofit modelling support
    Hands on data analyst support to help housing providers to analyse their data for energy efficiency improvements and understand the true condition of their housing stock.
IRT | Thermal Imaging Surveys | Retrofit Assessment | Energy Efficiency Software

IRT + Mears: A Powerful Combination

In August 2022, IRT was acquired by Mears Group PLC.

This integration enhances Mears’ retrofit and maintenance services by embedding IRT’s technology and expertise:

  • Intelligent Retrofit Planning: DREam now supports Mears in developing rapid, data-driven plans to decarbonise ageing housing stock
  • In‑House Carbon Reduction: By bringing thermal imaging and energy modelling capabilities inside the group, Mears can address energy efficiency from start to finish
  • Access to Funding: Together we enhance our ability to secure grants—including the Social Housing Decarbonisation Fund

“IRT is delighted to become part of the Mears family and we look forward to working collaboratively with clients to accelerate their net‑zero journey. Together, IRT and Mears can take clients through the entire retrofit process from start to finish – that’s something unique in the market today”

Ready to Get Started?

Whether you’re diagnosing building defects, improving energy performance, or planning a full retrofit, IRT now offers even greater capability—backed by the scale and resources of Mears.

Talk to us today about making your homes warmer, more efficient, and net‑zero ready.

Services & Products

Save time and mitigate risk with thermal imaging surveys to help you or your clients deliver fast effective repairs.

Optimise your retrofit with DREam – cloud-based software that reveals Net-Zero funding opportunities in seconds.

Thermal Imaging Surveys

Predictably find leaks and problems in your building fabric to enable a stress-free fix. 

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Optimised Retrofits (DREam)

Make intelligent retrofit decisions and access Net-Zero funding faster for warm, happy tenants.

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Let's start the conversation


Whether you want to diagnose building defects or improve energy efficiency the easy way, get in touch now to take the first steps in planning your repair or retrofit.

A fast, effective fix or better energy efficiency?

Talk to us about your project and find out how we can help.