renewable energy
Unlock Energy Savings Today
Sublime Energy Services helps UK households access ECO4 grants to improve energy efficiency, cut bills, and reduce carbon emissions. Our expert team manages everything-from free surveys to installing insulation, heating systems, and renewable solutions like solar panels and air source heat pumps. Check your eligibility in minutes and let us help make your home warmer, greener, and more affordable’
Green Energy Output
80% Increased!
100K+
has joined
DO YOU KNOW
What is ECO4 Grant?
Reduced Carbon Emission
ECO4 helps cut down on fossil fuel use and greenhouse gas emissions
Innovative Energy Conservation
Upgrading inefficient systems leads to energy conservation easing pressure on national grids and natural resources
Healthier Living Environments
Warmer, well-insulated homes lead to better indoor air quality and reduced dampness: improving public health, especially in vulnerable populations.
ABOUT US
Powering Homes with ECO
From free insulation to renewable energy systems, explore a range of government-backed upgrades that boost energy efficiency and cut household bills. Here are the services:
Heating Upgrades
New Boilers, Central Heating System
Insulation Measures
We offer range on insulation services including Loft, External Wall (EWI), Internal Wall (IWI)
Renewable Energy Systems
Solar Panels, Air Source Heat Pumps
Why Choose Us
Trusted Experts in ECO4 Home Energy Upgrades
Over a decade of proven success in delivering energy-efficient solutions tailored to real homes and real savings.
WHAT WE OFFER
Our Services
BACK BOILER
Replace outdated back boilers with efficient models to save energy and reduce bills.
CONDENSING BOILER
High-performance condensing boilers cut energy waste and maximize heating efficiency.
INTERNAL WALL INSULATION
Enhance energy efficiency by reducing heat loss through internal wall insulation.
External Wall Insulation
Improve thermal performance, reduce dampness, and lower heating costs with external wall insulation.
ROOM IN ROOF
Insulate attic or loft rooms for year-round warmth and energy savings.
SMART HEATING CONTROLS
Control heating easily, save energy, and manage comfort with smart thermostats.
Three Step
Application Process
Eligibility Confirmation
ECO4 grant requires you to meet the criteria listed below:
- Privately owned property
- Applicant claiming DWP Administered Benefits
- Inefficient EPC Rating
Free Assessment & Survey
Our team visits your property to confirm the details
- A free, no-obligation home inspection
- Scheduled at your convenience.
- Surveyors will recommend the optimal solutions
High Quality Installation
After confirmation from the survey, the installation will be completed
- Quick Turn-Around Time
- Qualified Installation Team
- Stay in touch directly with our Head Office during the process
TESTIMONIALS
A Smarter, Greener Way to Upgrade Your Home
Ayesha Tabassum
I wasn’t sure if I’d qualify, but the team explained everything clearly and helped me apply for loft and cavity wall insulation. When I had questions about the paperwork, they responded the same day. My home is now warmer, and I’ve already noticed a drop in my energy bills!
Daniel M.
There was a delay with my boiler installation due to a supplier mix-up, but the office team sorted it within 24 hours and kept me updated. I really appreciated how professional and friendly everyone was. I’d definitely recommend them.
Karen T.
I live in an older property with no central heating. I applied through ECO4, and within a week, the team arranged everything. When I had an issue with my thermostat afterward, someone came out the next morning to fix it. Brilliant service!
In Collaboration with
Leading Regulatory Authorities
