Our Journey Since 2020
Established in 2020, Greentek has rapidly grown into a powerhouse in the UK construction and energy sector. We have successfully delivered over 500 projects under major schemes including ECO3, ECO4, and LA Flex.
Our approach is built on two core pillars: Energy & Decarbonization and Commercial & Domestic Construction. By bridging the gap between traditional building practices and modern energy efficiency, we provide a unique, holistic service to our clients.
Why Greentek
Three Reasons
Home Owners Trust Us.
Accreditation, experience, and accountability built into every project we take on.
BRAND AGNOSTIC
We select the best in class technology or hardware, based on client requirements.
FULL LIFECYCLE SUPPORT
From initial consultancy and design to installation and long-term maintenance, we stay by your side.
OUR STANDARD. YOUR GUARANTEE.
Something not right? We come back and fix it. Free. No questions asked, that's a guarantee.
About Us
A Home That Works Harder, For Less.
We believe you shouldn't need three different companies to power your property, fix your heating, and renovate your space. That's why Greentek brings solar, heat pumps, and energy storage together with expert construction and renovation both residential and commercial, so everything gets handled by one accredited team, properly, from day one.
Why Choose Us
Why Homeowners Choose Greentek.
Certified installers, fixed prices and one accountable team, from the first survey through to the final sign-off.



Our Network
Trusted by Industry Leaders.
Strategic partnerships with leading global manufacturers to deliver high-performance hardware.






























Our Process
Four Steps.
Zero Surprises.
From the first call to the final handover, a clear, transparent process designed to deliver solar, home improvement, and renovation work with zero hassle.
Free Survey
Book online or call. A Greentek specialist visits your property to assess your solar, heating, insulation, or renovation needs.
Custom Quote
Get a clear, fixed-price quote with material and brand options, and an honest timeline, no hidden fees.
Expert Installation
Our in-house accredited team carries out the work, solar, heat pump, insulation, or renovation, no subcontractors passing the job around.
Handover & Warranty
We walk you through everything on completion, clean up after ourselves, and hand over your written warranty.
