Updated 8 November 2026.
Guide prices
The online calculator provides an indicative guide based on your selections. It is not a binding offer or final quotation. D17 must confirm the equipment, capacity, access, installation requirements, applicable taxes and scope of work before agreeing a price.
Booking work
Submitting an enquiry does not book an installation or service visit. The scope, timing, price, payment arrangements and any warranties will be set out separately when your project is agreed with D17.
Website guides
Our articles provide general information to help you prepare for a conversation about your project. Requirements and equipment vary. Confirm the details for your property, including any permissions, before starting work.
Using the site
Provide accurate details that you are entitled to share. Do not misuse forms, interfere with the site or attempt to access private systems. These website terms do not affect your statutory rights.
Contact
Questions about the website or a project can be sent to d17ac@yahoo.com or discussed by calling 07742 508856.