We’re investing for the long term to improve energy efficiency, cut carbon emissions, and make homes more comfortable and affordable. From better insulation and low-carbon heating to renewable energy, we’re preparing for rising energy costs and climate change.
But it’s not just about homes. Our work supports healthier neighbourhoods, cleaner air, and fairer access to energy. We’re committed to meeting national and local climate goals and staying ahead of new environmental standards. Our teams have the training and tools to lead the way – whether through technical upgrades or by working closely with our communities.
This page is your one-stop shop for all things sustainability. Click the links below to see how Cobalt is creating homes and places that are good for you and the planet – now and for the future.
£110m
By 2033, we will have invested more than £110 million into our homes.
Cobalt has an ongoing programme to improve the energy efficiency of our homes to support our target of achieving an energy performance rating of EPC C or above by 2030.
When/if your property is due to receive any retrofit works , we will contact you directly with further information about the proposed works and timescales.
Retrofit works involve improving existing homes to make them warmer, more energy efficient, healthier, and cheaper to run.
We strongly recommend agreeing to the works for the benefits such as lower energy bills, improved thermal comfort, reduced condensation and mould and better indoor air quality.
There is no cost to you as the customer; these improvement works are funded by Cobalt Housing and government funding.
This depends on the specific work required at your home. Our contractor, Ecogee, will provide you with all the details relating to your programme of works. They will keep you updated with what work is being done first and when to expect visits.
Each property is assessed based on its individual needs and the energy performance rating. The works required are specific to the property following the assessment that is carried out.
Here is a website that will help you understand your energy bills: Money Saving Expert
The improvements may reduce the energy needed to heat and power your home, but savings cannot be guaranteed. Your bills will also depend on energy prices and how you use energy.
As the owner of the solar panels, Cobalt is the generator of the electricity produced and, as such, we do not provide permission for customers to receive Smart Export Guarantee (SEG) payments.
No, Cobalt does not receive any payment or financial benefit. The electricity generated is available for the customer to use in their home.
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If you can’t find what you’re looking for or if you have any questions, please contact us.

Energy advice
Discover easy ways to save energy, cut your bills, and shrink your carbon footprint. Find out practical tips you can use every day and how Cobalt can support you.
Green spaces
Find out how we’re protecting and enhancing local nature. Discover community gardens, biodiversity projects, and how you can get involved in greening your neighbourhood.
Sustainable transport
Get inspired to travel greener. Learn about walking and cycling routes, EV charging points, public transport options, and schemes to support low-carbon travel.
Air source heat pumps
We’re exploring ways to make our homes more energy efficient, reduce carbon emissions and help customers manage their energy bills.
Retrofit programme
Learn how we’re helping residents upgrade their homes with insulation, efficient heating, and smart technologies. See what’s available, who’s eligible, and how to apply.
New homes
Take a look at our latest developments built with sustainability in mind. Learn about eco-friendly materials, energy-efficient designs, and future-ready living.
Water management
Learn easy tips to save water, lower your bills, and protect the environment. Find out how you can get support around water in your home, and how Cobalt and other organisations can support you and make a difference.
Solar panels
Solar panels can help you reduce your electricity bills and lower your carbon footprint.