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Deacon Marriner


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Get to know us a little more...

Deacon Marriner is a family run business based in North Wales. The team have a vast range of skills, from Project Management and Health and Safety, to Book - Keeping and Business Administration. Our goal is to help small businesses with the everyday matters in any industry - whether you just need plain and simple advice over the phone or managing one of your projects.

Deacon Marriner works closely with clients, architects, building services consultancies and contractors to manage both small construction projects or refurbishments up to larger projects within programmes.

At the heart of the business is Katrina Deacon, who is a certified PRINCE2 Practitioner and APM Professional. She uses various aspects of both Project Management methods in handling projects, but also adapts each project to suit customers requirements. Katrina has experience in working with many different scenarios in various industries and with projects of different size, success criteria and deliverables.


What Our Clients Have to Say

"Katrina Deacon was recommended to us by our architect, when we were starting work on our house refurbishment and garage block new build (a spend of circa £300k).  The deployment of a project manager to help us manage both progress and expenditure on the works was money extremely well spent.  Katrina did an excellent job helping us prepare bid documents and evaluating bids when they were presented, and was key to our supplier selection process.  She was free with her advice and guidance, and helped us to make good decisions on our key suppliers, including the builder, and on setting up appropriate contract arrangements.  She allowed us to separate active roles in the actual build from the evaluation and payment of stage payments, and did a good job of ensuring that weekly invoices were paid against real, quality, completed work.  Her approach to managing the builder was very effective, and she helped to keep the various trades working well together, despite some of the usual issues resulting from people getting in each others' way!
"We would have no hesitation in using Katrina again, were we to ever undertake such a project again, and recommend her without reserve."


Mr & Mrs P, Milton Keynes

"I worked with Katrina on a major project where C+D Partnership were engaged as an independent commissioning manager for a secure new build. Katrina is hard working, diligent and very well organised. She is also a real joy to work alongside, maintaining her humour in even the most challenging of situations. I would recommend Katrina particularly to anyone."


Mike Gillespie​

Founder Advent IM, Director The Security Institute, C3i Committee Member

"Due to a hectic work load I’m not able to find the time to go through the process of gaining an accreditation, so I asked for the assistance of Deacon Marriner and have since attained two accreditations, one in CHAS and one in Constructionline. Kyra and Jean update these for me yearly. They work very closely with me to ensure that the information is correct and they keep me informed throughout the process. I would recommend Deacon Marriner for their accreditation services as they are trustworthy, reliable and efficient, leaving me with the peace of mind that the accreditations are being dealt with properly."

Ian Hunt
Managing Director of  Inner World Design & Build



Deacon Marriner

Office 1203

Apex House

Thomas Street



CF83 8DP

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