Commercial Office Fitout, Construction, Refurbishment, Partition and Renovation services

Sydney Management Team

Dmitri Kolontaevskii at DY Constructions

Dmitri Kolontaevskii: Managing Director Dmitri Kolontaevskii LinkedIn

Dmitri has over 20 years experience in commercial, industrial and domestic construction in Sydney. Dmitri has a Certificate 4 in building and construction, and also has carpentry, plastering, painting and decorating licenses.

Dmitri has been working in the office fitout industry for many years, and started his own company in 2003 doing all types of building and construction works, including insurance repairs, make good works, office building refurbishments, tenancy makegoods, office stripouts and retrofits, base building refurbs and building maintenance. In 2016 Dmitri launched the fitout division of DY Construction, which helps companies who have offices in Sydney with all their office fitout and refurbishment needs. Dmitri has a proven track record of delivering fitout projects on time and within budget, and to a high level of quality.

Dmitri always likes to add his personal touch to each customer, and values long term relationships with all customers.

To discuss your next office fit-out project feel free to contact Dmitri direct on 0408 289 578 or email

John Frawley at DY Constructions

John Frawley: Business Development Manager (BDM) John Frawley LinkedIn

John has had a long career servicing the office fit-out needs of both small companies and multi-national corporations in Sydney. He has extensive experience in commercial design and construct office fitout projects ranging from 100m2 to 3000m2. John builds strong long term relationships with clients who regularly call back for repeat business.

John started his career as a surveyor in London with a large construction company, later working as a carpenter, he gained experience of different construction methods by working in England, Germany, Holland, Belgium and Australia, on commercial, domestic, industrial, medical and educational projects.

In 1993 John founded Action Commercial Interiors together with his wife Nia. A.C.I. offered complete office fitout services direct to corporates in Sydney, many were national and multi-national companies such as Brambles, DHL, DB Schenker, Selleys Chemicals, Mission Australia, Waterford Wedgewood, Hitachi Power Tools, Fuji Film, Konami Australia, Hills Industries, Electrolux, Sinopec, Reckon, Reckitt Benckiser, Hunter Douglas, etc etc. Projects were successfully managed on a design and construct basis, from concept through to completion including all interior design and project management services.

In 2017 John joined DY Constructions Australia Pty Ltd to service the office fitout and refurbishment needs of companies throughout sydney, supplying all fixtures and fittings, and including full management of the project.

To discuss your next office fitout project feel free to contact John direct on 0412 295 027 or email

Kathryn Atkins at DY Constructions

Kathryn Atkins: Administration Manager Kathryn Atkins LinkedIn

Kathryn is an experienced Administration Manager, with a background in customer service.
With her excellent communication and organisational skills, Kath manages all the office operations of the company in Sydney, to ensure all support activities are carried out efficiently and effectively to allow the fitout operations to function properly. Experienced in all administration procedures including client liaison, sales support, programming of installations, accounts payable, accounts receivable, she maintains a high level of customer satisfactions with all clients and takes a sincere interest in each client to ensure that each client is happy with the outcome of their fitout.

Kath can be contacted on 0456 019 939 or email

Alex Alexeenko at DY Constructions

Alex Alexeenko: Project Supervisor

Alex has a carpentry trade background, over many years in the building and construction industry. Alex is experienced with both commercial and residential interior fitout projects. Alex has successfully managed numerous projects all over Sydney to a high level of quality, and all fit out projects have been completed on time and within budget. Alex always keeps clients informed on the progress of their commercial fitouts, to achieve a high level of customer satisfaction.

Alex can be contacted on 0412 499 360 or email

Natalia Demchenko at DY Constructions

Natalia Demchenko: Interior Designer and Project Estimator

Natalia handles all the interior design and estimating for our clients throughout Sydney. Once our project managers have visited the site, Natalia then drafts office floor plans, prepares finishes schedules, moodboards and other details for the project. Natalia also handles the estimating for the project including detailed costings of all trades and writing of client proposals. Natalia is experienced in CAD interior design, boardroom design, space planning, office reception design, workplace design and coordinating fitouts with our team of suppliers and subcontractors.

Natalia can be contacted on 0416 956 056 or email