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External Wall Insulation & Rendering

External wall insulation and rendering solutions to improve thermal performance, protect your home and enhance its appearance.

What's Included

  • Improves thermal performance of external walls
  • Protects the property from weather and damp
  • Refreshes and modernises the exterior appearance
  • Suited to older and traditionally-built properties

External wall insulation for solid-wall and older properties

Properties built without a cavity wall, common in older housing stock across the West Midlands and Wales, lose a disproportionate amount of heat through solid external walls. External wall insulation wraps the outside of the property in an insulating layer, finished with a new render, which improves thermal performance and gives the property a refreshed, modern exterior at the same time.

Because the render is also a weatherproofing layer, the work protects the walls from damp and general weathering as well as cutting heat loss, which is why it's often the highest-impact measure for solid-wall homes specifically.

  • Improves thermal performance of external walls
  • Protects the property from weather and damp
  • Refreshes and modernises the exterior appearance
  • Suited to older and traditionally-built properties
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Projects Completed

Solar, heat pump and storage installs delivered across residential and commercial properties.

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Years Combined Experience

An accredited team with decades of hands-on energy and construction work behind it.

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Satisfaction Rate

One team handling the whole job, so it gets done properly and signed off first time.

External Wall Insulation & Rendering Projects

Real external wall insulation work completed by our in-house team.

External Wall Insulation — after
External Wall Insulation — before
Before

External Wall Insulation

Full external wall insulation upgrade, reducing heat loss and modernising an older property's exterior.

View Project →

Free Quote

Get a Free External Wall Insulation Quote

Tell us about your external wall insulation project and we'll come back within one business day with a straight answer, a plan and a real quote.

Property type
Are you the homeowner?

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.

STEP 1

Free Survey

Book online or call. A Greentek specialist visits your property to assess your solar, heating, insulation, or renovation needs.

STEP 2

Custom Quote

Get a clear, fixed-price quote with material and brand options, and an honest timeline, no hidden fees.

STEP 3

Expert Installation

Our in-house accredited team carries out the work, solar, heat pump, insulation, or renovation, no subcontractors passing the job around.

STEP 4

Handover & Warranty

We walk you through everything on completion, clean up after ourselves, and hand over your written warranty.

Fully Accredited & Certified.

Gas Safe Register
HIES
Quality Mark
SWIGA