£7,500 for homes on mains gas or electric heating, rising to £9,000 for homes heated by oil or LPG with no mains gas connection. We handle all the paperwork so you don't have to. Finance options available from 0% – 12.5% APR.
What We Install:
Air Source Heat Pumps
Solar Panels & Battery
Insulation Upgrades
Boiler Upgrades & Controls
Whole-home solutions designed as one integrated system.
Fully Accredited
MCS Certified • TrustMark Registered • Gas Safe • PAS2030/2035 • RECC Consumer Code
Find out what grants you qualify for and how much you could save.
Book Free Assessment
Why Us
Why Choose RetroFlow
MCS Certified Heat Pump Installers
TrustMark Registered & Gas Safe Approved
PAS 2030/2035 Certified
Free No-Obligation Assessment
10-Year Warranty + Support
Our Services
Our Energy Retrofit Services
We provide a comprehensive range of home energy upgrades designed to work together for maximum efficiency. From heat pumps and solar systems to insulation improvements and smart controls, every solution is tailored to your home.
Ready to Get Started?
Check your eligibility for the £7,500 – £9,000 Boiler Upgrade Scheme grant today. Finance available from 0% – 12.5% APR.
Our Primary Service
Air Source Heat Pumps
The centrepiece of any home energy retrofit. Air source heat pumps replace your gas boiler with clean, efficient heating — generating 3-5kW of heat for every 1kW of electricity used. With £7,500 – £9,000 in government grant funding (subject to your current heating system), there's never been a better time to switch.
Insulation Upgrades
Internal Wall Insulation
The essential foundation for any energy retrofit. Solid-wall properties lose up to 35% of their heat through uninsulated walls. Our PAS 2030 certified Internal Wall Insulation service stops that heat loss at the source — making your heat pump work smarter and your bills drop lower.
Energy Independence
Solar Panels & Battery Storage
Generate free electricity for 25+ years and store the surplus for when you need it most. Solar PV paired with battery storage means you're no longer at the mercy of rising energy prices — and when combined with a heat pump, you can run your entire home on your own clean energy.
Park Homes
Energy Upgrades for Park Homes
Residential park homes have their own energy challenges — and their own opportunities. Many park homes rely on LPG, oil or electric heating, which means owners can qualify for the higher £9,000 Boiler Upgrade Scheme grant when switching to an air source heat pump. Combined with insulation improvements designed for park home construction, the savings can be substantial.
We assess every park home individually and handle grant paperwork from start to finish. Finance options available from 0% – 12.5% APR.
Park home owners can benefit from:
Up to £9,000 grant if replacing LPG or oil heating
Air source heat pumps sized for park homes
Insulation suited to park home construction
Lower running costs all year round
Ask About Park Homes
About Us
Designed Around Your Home
Every property is different. We assess, design, and tailor each retrofit plan to suit your home's structure, energy usage, and financial goals. Our government-accredited approach ensures maximum grant funding, faster payback, and superior long-term savings.
Over 20 years of construction and eco-industry experience
Government-accredited installers
Number Talks
RetroFlow By
The Numbers
Trusted Expertise
in Energy Retrofit
Our leadership team brings over 20 years of experience from Tier 1 construction and renewable energy, delivering quality retrofit solutions as a North East business with national coverage.
Years Experience
Max Boiler Upgrade Scheme Grant
Energy Bill Savings
Homes Upgraded
Government Support
Government Grants We Handle
We're accredited installers for major government grant schemes. We handle all paperwork. You get the savings.
£7,500 – £9,000
Boiler Upgrade Scheme
£7,500 grant for air source heat pump installation if your home is heated by mains gas or electricity — rising to £9,000 if you're on oil or LPG with no mains gas connection (uplift available until 31 March 2027). Covers most of your cost. No means testing. Available to homeowners and landlords.
Full Funding
ECO4 Scheme
Fully funded energy upgrades for low-income households. Covers heat pump + insulation + controls. Zero upfront payment for eligible households.
Speak to Our Team Today
Thinking about upgrading your home's energy efficiency? Book your free assessment below — a heat pump estimate, a solar PV estimate, or both.
North East England · info@retroflow.co.uk
Credentials
Trusted, Partnered & Accredited
Gas Safe Registered
Reg: 977084
Quality Mark
TrustMark Registered
MCS Certified
PAS 2030/2035
RECC Consumer Code
Reg: 00080222
Q-Smart Approved
ICO Registered
Ref: ZC078690
SWIP Partner