ECO4 Installer UK | Free Boiler, Loft Insulation, Solar PV, ASHP & More

Now Available Across the UK!

Free Boiler Upgrade, First-Time Central Heating,
Loft Insulation, Heat Pumps, Solar Panels

Boost your home’s energy efficiency, reduce energy bills, and enjoy a warmer home with free UK government ECO4 grants and energy-saving upgrades.

Simple & Quick Process

Eligibility Check

Free Site Survey

Paper Work

Free Installation

We’re Here to Help!

Explore Our Services

We Are Your Trusted Partner for Energy Efficiency

Electric Storage Heater

As part of the ECO4 Scheme, Asaf HK Group Ltd offers eligible UK households the…

Loft Insulation

Our loft insulation service helps keep your home warm in the winter and cool in…

First Time Central Heating

Looking to install central heating for the first time? Our First-Time Central Heating service provides…

Professional engineer doing a boiler inspection at home

Boiler Replacement

Is your boiler old, unreliable, or wasting energy? We provide boiler replacement services designed to…

External Wall Insulation

External Wall Insulation (EWI) involves applying an insulating layer to the outside walls of your…

Cavity Wall Insulation

Cavity Wall Insulation is a simple yet highly effective way to improve your home's energy…

Air Source Heat Pump

We lead with cutting-edge tech, optimizing processes for efficiency, staying ahead of industry trends, and…

Solar PV

Unlock the power of solar energy with our Solar PV systems. Designed to reduce your…

We provide a wide range of energy-efficient home upgrade services to help customers save on energy bills, improve comfort, and enhance property value. View All Services

about us

Your Trusted ECO4 Installer for Energy Efficient Home Upgrades and Solutions.

At Asaf Hk Group Ltd, we are leading ECO4 installers in the UK, specializing in energy-efficient home upgrades. We help homeowners reduce energy bills, improve comfort, and boost home sustainability with a range of ECO4-funded solutions. Our experienced team provides seamless installation of loft insulation, boiler replacements, air source heat pumps (ASHP), solar PV systems, and other renewable energy technologies. As trusted ECO4 specialists, we ensure every project maximizes energy savings and meets the highest standards.

More About Us

our core value

At Asaf Hk Group Ltd, we uphold integrity, sustainability, and innovation in every ECO4 installation. Our expert team delivers energy-efficient home upgrades that increase comfort, lower energy bills, and support environmental responsibility across the UK.

Integrity: Upholding transparency and honesty in all our ECO4 services and interactions.

Sustainability :Committed to reducing environmental impact through energy-efficient solutions and renewable energy systems.

Innovation: Continuously exploring and implementing cutting-edge technologies for better energy efficiency and savings.

EPC Ratings

Most properties in the UK have an EPC (Energy Performance Certificate). If a property doesn’t have one or the certificate has expired, a new EPC will be provided during the survey.

This service can be used to locate existing:

Energy Performance Certificates (EPCs)

Display Energy Certificates (DECs) for public buildings

Air conditioning inspection certificates and reports

The EPC provides a rating of the property’s energy efficiency, ranging from Band A (most efficient) to Band G (least efficient). Under the ECO 4 scheme, qualifying properties are typically rated Band D, E, F, or G.

The EPC register also shows:

The property type

Floor area in square metres

The current EPC band

The current heating source in the property

If a property can be improved by at least two SAP rating bands (e.g. from E to C or F to D), it may be eligible for funding. To achieve this, insulation measures must be completed first, followed by the installation of heating controls.

The EPC will also suggest what energy-saving measures can be installed and estimate the typical annual savings for the customer.

Frequently Asked Questions

Our FAQ section is here to help you better understand the ECO 4 scheme, the services we offer, and what to expect during your energy efficiency upgrade.

Still need help? Feel free to contact our team directly—we’re happy to assist.

View All Questions

Our Core Services

At Asaf Hk Group Ltd, we provide expert energy efficiency solutions to help households reduce their energy bills and carbon footprint—many of which are fully funded through the ECO 4 scheme.

Gas Boiler Replacement

First-Time Central Heating

Insulation Services

See Our All Services

Our Grants

Asaf Hk Group Ltd helps UK households access ECO 4 funding, improving energy efficiency and tackling fuel poverty with government-backed suppor

You must receive benefits

You must own your home or be a private tenant

You must complete our eligibility checker

View Grant List

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ECO4 Installer UK | Free Boiler, Loft Insulation, Solar PV, ASHP & More

Testimonials

What Our Customers Say?

More than 99% customer satisfaction is our success.

I am more satisfied with the plumbing and heating services provided by your company. Your professionalism, expertise, and commitment to customer service are truly commendable. I will not hesitate to recommend your services to friends and family in need of plumbing and heating solutions.

Martin Foster

Customer

I wanted to take a moment to express my sincere appreciation for the outstanding plumbing and heating services your company provided. From the moment I reached out for assistance until the completion of the project, your team demonstrated professionalism, expertise, and a commitment to customer satisfaction that truly exceeded my expectations.

Bryan Cirius

Customer

I must commend your team for their excellent communication skills. They kept me informed at every stage of the project, providing updates on progress and addressing any questions or concerns I had. This level of communication is rare and greatly contributed to my overall satisfaction.