About Us
We are a specialist retrofit and clean energy provider, delivering integrated solutions that improve energy performance and support the transition to low-carbon housing. By combining technical expertise with a practical, delivery-led approach, we help clients achieve efficient, compliant and long-term results.
Our People
A Team Built on Expertise and Experience
Our team brings together specialists across retrofit, design and delivery, combining technical knowledge with hands-on experience. From assessors and designers to project and delivery teams, we work collaboratively to ensure every project is delivered efficiently, compliantly and to the highest standard.
Our Mission
Our mission is to provide innovative, sustainable, and cost effective renewable energy solutions that help homeowners reduce their energy bills, save money, lower their carbon footprint, and reduce energy consumption. We are committed to making clean energy accessible to everyone, offering personalised advice, expert installations, and ongoing support. Our goal is to empower our customers to take control of their energy consumption.
Our Vision
At Warmer Energy Solutions, our vision is to lead the way toward a future where every home is powered by clean, renewable energy. We envision a world where energy efficiency is the standard, and sustainability is at the heart of every decision. Through innovation, education, and commitment to excellence, we aim to combat fuel poverty in the UK.
In 2025 alone we delivered …
Extensive Experience
Our Directors
Our directors bring extensive experience across retrofit, construction and energy sectors, providing clear leadership and strategic direction. With a strong focus on quality, compliance and delivery, they ensure the business operates with consistency, supporting clients with reliable expertise and a commitment to long-term success.
Charlie Mullan
Managing Director
Sean Mullan
Operations Director
David Wills
Company Director
Simon Bettley
Commercial Director
National Coverage
We operate across the UK, supporting housing providers and local authorities with retrofit delivery at scale. Our national reach enables us to deliver consistent, high-quality solutions across multiple regions.
Our established network and experienced teams allow us to mobilise quickly and manage projects efficiently. We provide reliable, scalable delivery while maintaining the same standards of quality, compliance and performance nationwide.
Programme Partners
We work in partnership with trusted programme partners to support the successful delivery of retrofit projects at scale. By combining expertise, resources and aligned objectives, we create strong, collaborative relationships that enhance delivery and ensure consistency across programmes. Our approach enables seamless coordination between stakeholders, helping to manage complexity, maintain compliance and achieve high-quality outcomes that deliver long-term value for clients, residents and the wider communities they serve.
Let’s Chat.
Get In Touch
Whether you’re planning a retrofit project or delivering a larger programme, our team is here to help. Get in touch to discuss your requirements and explore how we can support efficient, compliant and high-quality delivery.