Meet the team.

Mark Lyons, Commercial Estimating Manager

I oversee all the pricing aspects for the commercial sprinkler division from tender stage up until contract award, liaising closely with our design and technical teams ensuring all aspects of the projects have been accounted for. Liaising closely with our preferred client base and possible future clients, giving them the reassurance and guidance to help them secure the package for future award. I enjoy cost analysis and tender reviews making sure we have encompassed all of the project requirements.

I have over 19 years of estimating experience in the mechanical construction industry Including 5 years as commercial manager within the commercial sprinkler industry. I joined Triangle last June and I have progressed from senior estimator to estimating manager.

I enjoy playing golf and as an avid rugby fan I have a season ticket where I regularly attend the stoop in Twickenham to watch Harlequins. I also enjoy watching my son playing amateur football on Sunday mornings.

Contact Details



+44 (01424) 812 557


Triangle continue to be professional, proactive and innovative in their approach to retro fit sprinkler systems. They always put the customer first and will always find a way to complete the project with minimal disruption to our residents.

Steve Key, MIFirE, Fire Risk Technical Lead, Midland Heart

Contact us today

+44 (01424) 812 557