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Sigma Electrical Contracts are committed to providing a website that is accessible to the widest possible audience, regardless of technology or ability. We work to current web standards and accessibility guidelines in order to allow our content to be accessible to as great an audience as possible. If you do have any difficulty using our website at all, then please let us know. We we will endeavour to rectify any issues raised in future iterations of this site.

All pages on this site comply with level 2 of the W3C Web Content Accessibility Guidelines (link). All pages on this site validate.

This site is built using well-structured, semantic markup. Appropriate tags are used to add semantic value to content, ensuring our pages can be read and interpreted by not only web browsers, but also screen readers and other assistive devices.

Our efforts include, but are not limited to:

  • Maintaining a standard, conventional layout and structure throughout the website.
  • Using the correct and appropriate HTML (abbr) tags to mark up our pages and content.
  • Using CSS (abbr) to control styling and presentation of pages.
  • Using JavaScript in an unobtrusive manner, thus separating content from both presentation and behaviour.
  • Checking contrast levels between elements, enhancing legibility of content for those who may be visually impaired.
  • Employing a logical typographical hierarchy for content, enhancing readability.
  • Using table-based markup only for tabular data, and never for layout or presentation.
  • Using an adaptive page layout system, allowing content to be shown in a way which is appropriate to the viewing device.
  • Ensuring link text makes contextual sense, using title and rel (abbr) attributes as appropriate.
  • Write content in a style which is understandable and easy to follow.

Should there be an instance when our site does not meet the needs of a specific user group and it is necessary we make changes to our content, structure or markup then we will endeavour to make the necessary changes to ensure that our site is as accessible as possible. Feel free to contact us at


“The Talipot House project was a challenge, with a tight budget, a high impact works program and demanding a high standard of finish. Sigma Electrical undertook the electrical works and did so in a thorough and professional manner. We had regular and positive contact with Sigma’s contracts manager throughout, and also with the electrical foreman on site, whose level of knowledge and pride in his work was evident. The project was completed on time and on budget, and achieved a great standard of finish ready for prospective tenants to view. Our experience of Sigma was very positive and we look forward to working with them again in the future.”

David Warner

Associate Director, Sine Consulting (part of the design team working on the project)

Project: Talipot House, Your New HQ