Our Team

Jon served a HVCA apprenticeship starting in 1986 with large local contractor W F Knight & Sons. His father, Jack Wintersgill, had already joined with ex-Knights men & Watertite founders Marcus Rowswell and Dave Gosney, and Jon joined them in 1993.

He worked his way up to Foreman and then Contracts Manager, before taking over from Jack, as a company director, when Jack retired in 2002. He subsequently became joint managing director with Marcus in 2004. Marcus retired in 2017 and Jon is now the sole Managing Director.

Jon has been pivotal in the company’s steady growth to this point, and is confident that with the great team that he has assembled/nutured at Watertite, that the future is very bright.

Julian has worked at Watertite for 31 years. He started his career as a junior surveyor and 18 years later he was appointed a company director. 

He has been an integral part of the company’s growth & development and carries out the role of surveyor on every Watertite project. He has an invaluable rapport with a great many clients, suppliers and specialist sub-contractors.

Peter started an apprenticeship in the industry in 1992 with medium sized local contractor, Sansom Heating. He worked his way from apprentice to the position of Foreman by 2004 and stayed at Sansom Heating until 2006.

Peter then spent 3 years working self-employed in both the commercial and domestic fields. He then joined Watertite in 2009 as a site supervisor but soon progressed to the role of contracts manager where he has built long standing relationships with builders, M&E consultants and clients. Peter has managed scores of successful projects in his time here and was appointed as Senior Contracts Manager in 2015.

Jim joined Watertite Heating in 2022 having had a sabbatical from the industry. 

Jim started his career working for Vicforge Air Systems, where he learned his trade, completed his HNC & HND in Building Services Engineering and worked his way up to become the “right hand man” of the business owner, before eventually deciding to start his own company. 

Elliott Environmental Services Ltd was born in 2003 and had some quite close initial ties with Watertite Heating. 

EESL successfully traded for 14 years and grew to become a specialist Air Conditioning & Ventilation contractor and they were frequently engaged by Watertite as a specialist sub-contractor. 

In 2017, at the relatively young age of 48, Jim sold the company, as a profitable on-going concern, with a view to trying something completely different. 

Five years down the line and Jim has decided that he wants to fully jump back into the industry that he knows best and Watertite are delighted to have convinced Jim that we are the company best placed to make the most of his undoubted talents. 

We believe that our mutual strengths and weaknesses are perfectly aligned, and that our combined skillsets will be a significant overall plus to the company. 

Jim’s appointment heralds an exciting new chapter in Watertite’s continued progression towards becoming one of the leading specialist Mechanical Contractors in the South West region.

Victoria started her accounting career in 2002 as a Bookkeeper whilst studying for her AAT.

She qualified and moved to large regional financial services and accountancy practice - Old Mill in 2006 where she continued building her bookkeeping practice experience, working with much larger Companies with varying software packages.

It wasn’t long before she was encouraged to start expanding her breadth of knowledge and experience and she moved into the Commercial sector in 2008, preparing and auditing Year End Financial Statements for Companies in varying industries.

In amongst maternity leave for her two beautiful children (2012-2015), she helped manage various teams, learning other sectors including Pensions, Trusts and Payroll.

Over the years, she steadily built a portfolio of Clients whilst creating a high performing, motivated team and together they achieved a high level of Customer Service.

Latterly, she was tasked with rolling this formula out across Old Mill’s regional branches in the role of Operations Regional Manager, before making the choice to change direction and move across to Industry.

Watertite had been part of her portfolio at Old Mill since 2011 and as a consequence, she is already familiar with the senior management and directors at Watertite.

Victoria joined Watertite in 2019 and is a fantastic addition to our team.

Nigel is a vastly experienced manager. He started as an apprentice sheet metal worker with large local contractor W F Knight & Sons. He became ventilation department manager at Knights, before subsequently starting a new company solely specialising in the manufacture and installation of ductwork. The company traded for approximately ten years and was then sold to a larger organisation. At that point Nigel took up a post with national contractor MJN Colston, where he reached the position of Exeter Regional Manager.

Eventually Nigel returned back to familiar surroundings and joined Watertite in 2012 and has successfully nurtured and developed the ventilation & air conditioning side of the business. He manages all of our in-house Ventilation & A/C installations and also Contract Manages stand-alone projects that have a bias towards Vent & A/C.

Wayne started with Watertite as a trainee pipefitter in 2001. He gained experience in all aspects of the mechanical trade, but primarily focussed on commercial gas and larger commercial boiler houses, cooling farms and chilled water plant. He spent the last 5 years of his time on the tools as a Foreman and was promoted to the role of Contracts Manager in 2017. Wayne's hands on knowledge and his steadfast determination has undoubtedly helped with his successful transition in to the Contracts Manager's role.

Steve served his Building Services apprenticeship back in 1984 at Southampton Technical College and went on to complete a HNC in Building Services in 1988, at Southampton Institute of Higher Education.

By the mid-nineties, Steve was working as a Project Manager and worked for the next 25 years in similar roles, for just 3 different companies (R G Greenland, Hinchliffe & Seaforth).

Steve joined Watertite as a Contracts Manager in mid-May 2021 and his extensive experience should make him a valuable addition to the Watertite team

Rob is one of the longest serving employees at Watertite Heating. He has genuinely served as man and boy having served his apprenticeship with the company and has worked his way to become the department manager of Watertite’s growing Service & Maintenance division.

He manages six highly skilled engineers and also has IOSH & NEBOSH qualifications in Health & Safety. Rob is highly regarded by all members of the Watertite team, both above and below him in the organisational chain.

Having completed his A Levels at college and joining an accountancy practice, James decided that he wanted a change of direction. He joined Watertite in 2011 as a trainee pipefitter/plumber and quickly realised that he had found his forte. James learned his craft on a variety of projects and in particular worked on four substantial new build care homes and a large office block refurbishment project. Within seven years, he had progressed to site supervisor and cut his teeth on a couple of his own city centre office block refurb projects for prestigious clients (Bristol University and Dyson). At the beginning of 2019 James joined the office team as a Contracts Engineer with the remit of shadowing some of our more experienced managers, in order to gain the experience he needed to take the next step. One year later and James was promoted to the role of Contracts Manager and has now been elevated to a department manager in charge of Small Works & Water Hygiene.

Sarah joined Watertite straight from college, armed with four “A” Levels, and initially completed a 2 year Business & Administration Apprenticeship, before going on to complete a 3 year, Level 4 Professional Diploma in Accounting (Passed with Distinction).

Sarah was promoted to the position of Office Manager in Sept 2017 and also became Finance Manager in 2022.

Sarah is a valued and trusted key member of the Watertite team.

Having initially completed an aerospace technical apprenticeship in Mechanical Engineering, Luke changed direction and entered the Building Services Industry as a Junior Estimator for EIC Ltd - a national Mechanical contractor based in Exeter. Following the unfortunate closure of EIC, Luke joined Whitehead Building Services. At this point he went on to commence his HNC in Building Services Engineering at the City of Bath College. In his tenure at both EIC and Whiteheads, Luke was able to gain considerable knowledge and experience, working on a wide variety of projects. In 2017 Luke joined Watertite Heating Ltd as an estimator with design skills, to enable full D&B Tenders to be compiled from start to finish. He completed his HNC with Watertite's support in 2018. On the larger D&B projects, Luke frequently collaborates with external design consultants, after the initial tender stage, so that the initial design concepts are reflected in the more detailed Stage 4 & 5 designs. Luke has continued to make great progress throughout his time at Watertite and has been instrumental in securing several £1m + projects, and has demonstrated his ambitions to move Watertite forward in an ever-changing marketplace. In July 2022, Luke was promoted to the role of Estimating & Design Department Manager (a significant achievement, both for him and for the company).

Justin started in the industry in 2002 and began his career as a plumbing & heating engineer with Taunton based contractor Westford Mechanical Ltd.  After 5 years on the tools, he quickly progressed and subsequently undertook the joint roles of Estimator & Contracts Manager. This role enabled him to both secure and deliver many prestigious projects and saw him develop and build long standing relationships with builders, M&E consultants and clients. Since joining Watertite in 2016, Justin has concentrated and focused on his estimating qualities and has become a valued and integral member of the Watertite team. Justin was promoted to the position of Senior Estimator in Sept 2018.

After leaving South Bank University, Andy joined Bournemouth contractors Mumford, Bailey & Preston in 1982 as a technician, he then moved to Wiltshire County Council in 1983 where he developed use of PCs for running WCC BMS systems and cut his teeth on early CAD machines.

He moved to Cumbria County Council in 1989 as a Mechanical Engineer, added electrical qualifications and began designing heating control systems and electrical projects, before taking over the maintenance / servicing of the county’s roadside weather stations.

Andy moved to Somerset County Council in 1997 as a Building Services Engineer, handling both mechanical and electrical works. Andy left SCC in 2010 and worked as an Engineering Consultant and Surveyor for 18 months, before joining Watertite in 2012 where, in conjunction with Luke Monk, he carries out the design, for our design and build projects, and develops working drawings on the traditional pre-designed projects using the latest CAD software packages.

Mark has a background in the industry attained via a national supplier to the marketplace. He joined Watertite in 2008 as a buyer, and has also worked as an estimator

In the months leading up to the out-going director Marcus Rowswell’s retirement, Mark has partaken in the necessary training to adopt the role of company Safety, Health & Environment (SHE) Coordinator. Mark is also supported by external consultants, NatWest Mentor. Mark carries out regular Health & Safety Site Audits and ensures that Watertite are compliant with the many regulatory bodies in our industry, and he is also responsible for the compilation of all of the PQQ's that we are invited to complete.

Lewis joined Watertite in 2014 and initially started training as a pipefitter.

Circumstances dictated that he incorporated some training as a Ductfitter also, and from then on, he quickly learned both skillsets and became adept at both sides of the Mechanical Services trade, frequently interchanging between departments. Whilst this is not unique, it is unusual, and ultimately this has led to Lewis having a greater understanding of all of our site-based activities.

Therefore when we recently decided that we needed an assistant manager within the Ventilation & A/C Department, Lewis’s name was high on the list of preferred candidates.

It is anticipated that Lewis will learn the management side of the business with the same dedication and enthusiasm that he has demonstrated throughout his career, especially under the tutelage of industry veterans Nigel Drury and Jim Elliott.