Fortem specialise in making homes, buildings and communities more energy efficient and better places to live. Trained in PAS2035 retrofit solutions, our Technical Solutions Experts, will improve the fabric and appearance of properties to make them easier to heat, reduce carbon emissions, help families out of fuel poverty and change lives.
energy services

Supporting landlords deliver carbon zero homes

Delivering an effective solution from concept through to delivery and monitoring

1. Consultation

Detailed analysis of your property portfolio. Development of schemes e.g. whole house retrofit, renewables, communal and district heating

2. Design

Our technical solutions experts are at the forefront of research and development, driving best practice

3. Delivery & Monitoring

End-to-end technical support, quality delivery, education and monitoring to ensure building lifespan including adhering to PAS2035 regulations.

What Makes Us Unique?

Technical Solutions Experts

Our team of Technical Solution Experts have an extensive amount of expertise and experience in appraising buildings. Once the current energy performance within a building is understood, the team develop the most appropriate installation measures and cost options for each project. They identify and quantify opportunities pre and post installation, and provide on-going technical support, throughout the duration of the programme and post contract.


It was heartening to observe the works undertaken at Llandysul being funded under the Arbed 2 initiative by Fortem (formerly Willmott Dixon Support Services), which delivered a well thought through scheme, with the careful selection of correct products and a level of quality control on site I have rarely encountered. It is always too easy to offer criticism on jobs that have been done poorly, but sometimes it is worth recognising changes in industry practice that provide comfort that the changes required are slowly but surely gathering momentum.

Colin King, Director of BRE (Building Research Establishment)

Monitoring & Education

Our team ensure residents/customers fully understand how to use and maintain the measures installed in their homes/we educate building users on new and emerging technologies and provide an effective advice and after care service.

Following completion, building usage is monitored to check the difference in energy use. The feedback data is used to influence future projects, whilst setting a standard for improving the performance and comfort of older homes in the UK.


Our priority has been to focus on maximising the performance of the building fabric itself and taking a holistic view of the impact of the changes. We are looking forward to finding out more about the results of the pilot and demonstrating to others what can be achieved.

David Ames, Head of Heritage and Strategic Planning for the Heritage Foundation RE Common View Project

Quality Assurance

We pride ourselves on delivering high quality energy efficiency schemes in local communities. As a certified Green Deal Provider and an accredited PAS2030 Installer, we deliver energy efficiency works in accordance with the Green Deal Code of Practice and in compliance with the installation standards. read more+

We provide support to our supply chain by providing training and development opportunities helping them achieve relevant accreditations as required, such as PAS 2030 and CHAS. read less -

Fortem (formerly Willmott Dixon Support Services) have provided a very competent service to Golden Gates Housing Trust, they have offered advice and given vast experience which has included industry knowledge.

Their input and deliverance into the project has been invaluable. The quality of their work has recently been acknowledged as the project has won a national housing award.

Paul Lowe, Project Manager at Torus (formerly Golden Gates Housing Trust)

Sustainable Development

We are one of the few companies in our sector to have our own award-winning in-house sustainable development consultancy. The team, with expertise in environmental and social sciences, helps us ensure that our working practices are environmentally and socially sustainable, so that we go beyond our legal obligations, adding value to our clients and making a positive difference to the communities in which we serve.

Each year, our team produce a Sustainable Development Review of our sustainability performance from the previous year. It is structured around the four main themes in their Sustainable Development Strategy: putting people first, being a responsible business, tackling climate change & energy efficiency and smarter use of natural resources.

Fuel Poverty

We are well placed through the works we deliver to identify those who may be in fuel poverty. We provide support to residents/customers, which includes advice with regards to energy efficiency in their home, delivering energy efficiency awareness events within the community and working with third parties such as Age UK and the End Fuel Poverty Coalition to deliver consistent messages.

Before the work was carried out, the house was cold and draughty. I would have to use a lot of blankets in the winter to keep myself warm—now I only need one. I’m content and happy here, and enjoy listening to the radio and watching the soaps in a warm and comfortable home.
101 year-old resident

ECD Architects partners – Trustmark registered

Fortem works in partnership with a qualified Passivhaus Designers, specialists in designing ultra-low-energy holistic buildings that respond to their context, are economical to run and provide healthy indoor environments supporting councils to meet their energy performance requirements. Working with Fortem to deliver PAS2035 regulations.

My heating bills have come down considerably, especially this month. I have a smart meter and can see the difference in the warmth in my home. The rendering system has made the property look 100% better, I am delighted with the finished look.
Hull resident

Since 2013, the amount of CO2 Fortem saved could fill...


over 915 Royal Albert Halls


Wembley Stadiums


Olympic sized swimming pools

The amount of EWI installed in this time is the equivalent of...


externally cladding 3x the exterior of the London Shard


covering 22 football pitches


externally cladding 7x the exterior of the London Gherkin

What we offer

energy services
energy services
Loft & cavity insulation
energy services
energy services
Heating replacement
energy services
energy services
District & communal heating
energy services
Low rise refurbishment
energy services
Tower block refurbishment

Case Studies

Havering Non-Trad. Year1

Havering Non-Trad. Year1

We installed external wall insulation to non-traditional properties owned by the...

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Oxford Towers

Oxford Towers

We are working with Oxford City Council on their flagship project to refurbish...

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Islington PV

Islington PV

We installed more than 2000 solar panels to 3 council-owned buildings...

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Leeds Heating

Leeds Heating

We installed a biomass district heating system to two Council-owned high...

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Hull City Council

Hull City Council

External Wall Installation (EWI) and other energy efficiency measures for social properties...

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