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4.5m Awnings on Single‑Storey Homes: Costs, Bracketry, and Best‑Practice Installation Guide

Introduction: Managing Heat Gain To Gable End Glazing

Thank you for taking the time to talk with me about your project. Based on our conversation, I’ve put together this report to reflect what matters most to you. Inside, you’ll find examples of the systems we discussed, how they would work in your space, and what you can realistically expect in terms of performance and cost.

When you’re ready, you can book a TEAMS call with me and I’ll walk you through everything step by step.

The Area

  • Front of House 4500mm x 2000mm
  • Rear of House 4500mm x 1500m

The Key Priorities

  • Shading the Front & Rear Decking
  • Reduce solar heat gain entering the homes glazing

Understanding The Path Of The Sun

Using online solar‑path tools, you can clearly see how the sun moves across your home at different times of the day and year. These tools reveal:

  • Where the sun lands
  • Where shade falls
  • How glare changes throughout the day
  • Which areas stay in full sun for longest

This insight helps you understand how your space behaves and whether shading is needed to manage heat, glare, or comfort. Sun Calculator – Sunrise to Sunset & Shademap

Electric Retractable Awnings

‘Sol-Edge’ End Fix Awning

  • Up to 6m wide
  • Projection Arms 1.6m, 2.1m, 2.6m and 3.1m
  • Full Cassette Pressure Diecast Aluminium
  • Dickson Solar Fabrics Fabrics For Electric Awnings Systems – WindowTreat
  • 5 year Somfy motor, fabric & structural components warranty
  • LED Lighting and Awning Heater upgrades
  • Available in White, Black & Anthracite Grey as standard hardware
Sol-Edge Retractable Awning
"Three modern awnings shading a glazed side extension, providing stylish sun protection
Multiple Sol-Edge Awnings

Correct Awning Mounting Height

The correct mounting height is set by two things:

  • the projection of the awning, and
  • ensuring there is enough clearance at the leading edge of the fabric so you don’t bang your head.

An awning needs to sit high enough on the wall so that, once it’s pitched, the front bar still gives comfortable headroom.

Most awnings allow the pitch to be adjusted, but 14–15 degrees is widely considered the industry standard because it provides reliable rain run‑off without compromising usable space beneath the awning.

Correct awning mounting height

Single Storey Mounting Practices

Once you establish the correct mounting height for the awning, you can determine whether spreader plates or gutter brackets are required. Both solutions achieve the same goal: allowing multiple fixings down the wall into load‑bearing bricks.

On a single‑storey extension, the upper brick courses are not load‑bearing. This means a standard end‑fix installation is rarely possible at the correct height. You need a system that transfers the load down into the structural brickwork.

Modern balcony with Sol-Edge end-fix awning using spreader plates above bi-fold doors.
Sol-Edge with Spreader plates to distribute the loadings down the wall

If the correct awning height sits above the top of the wall, then gutter brackets are required. These brackets reach past the soffit and fascia, allowing the awning to be fixed at the right height while still anchoring securely into the load‑bearing brickwork below.

Gutter Brackets gets the awning up higher beyond the soffit & fascia

Cost Breakdown For Electric Awnings

  • 4.5m with 1.6m projection arms £3,440 inclusive of VAT and remote handset
  • 4.5m with 2.1m projection arms £3,550 inclusive of VAT and remote handset
  • 4.5m with 2.6m projection arms £3,700 inclusive of VAT and remote handset
  • 4.5m with 3.1m projection arms £3,850 inclusive of VAT and remote handset
  • Bespoke Gutter Brackets £850 per pair for each awning
  • Manufacturing Survey £650 inclusive of VAT
  • Installation Labour team per day £1250 (allow one day)
  • Somfy Tahoma Hub / App Free Gift From WindowTreat
  • Sun / Wind Sensor £190
  • LED variable Lighting in Projection Arms options 1.6m £600, 2.1m £650, 2.6m £700, 3.1m £750.
  • Awning Infrared Heater £600 each

Example Cost

  • Two Sol-Edge Electric Awnings @ 4.5m width and 1.6m & 2.1m projection arms at the front and rear of the home
  • £10,590 inclusive of VAT and installation

Marketing Scheme Discount

  • £300 for single awning
  • £500 for dual Awning

You have the option to take part in our marketing scheme. In return for the £300 discount on your electric roof lantern blind, we ask for a video conversation with Steve, our General Manager, along with multiple photos or videos (sent via We Transfer) of your finished installation that we can use for marketing.

This helps future customers understand our solutions and gives Steve valuable insight into how we can continue to improve our service. Your feedback plays a real part in shaping the experience for the next homeowner.

Next Steps

You now have a clear understanding of the right systems and investement costs. The next step is yours.

You are welcome to join me on a TEAMS video call. I can take you through this solution in more detail, answer your questions, address any concerns and potentially look at alternative options if need be.

Available times are shown in my diary at the end of this article.

Janice I Electric Awnings I Customer Testimonial

13 Factors That Influence The Cost Of Your Patio Awning – WindowTreat

Bespoke Electric Awnings: Why They Cost What They Do (And Why It Is Worth It) – WindowTreat

WindowTreat Automated Shading Systems Terms & Conditions – WindowTreat

Calculator – Sunrise to Sunset

Shademap App

⚡ Electrical Requirements for Electric Patio Awnings – WindowTreat


Author: Chris Gargett, Co-Founder - Director of Solutions & Operations
Chris Gargett

Chris is the lead technical specialist who personally guides homeowners from initial consultation to final installation, ensuring every shading solution seamlessly integrates with the architecture to preserve your dream home.

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For an immediate call back, please phone 

01256 345580.

Our receptionist will gladly schedule a consultation for you.

For a more detailed and personalised call, please use the form below. By telling us about your project in advance, our specialists can prepare tailored advice. We will call you back at your chosen time.