mechanical engineering services
Commissioning & Chlorination

Cosgrove & Drew have the capabilities of delivering full M&E projects due to our ever-growing specialist subcontractor supply chain. We like to work with similar sized businesses from the local area to create a team of highly skilled Engineers with the capabilities to deliver commercial projects on time, on budget and to the highest of standards.

If you wish to discuss your own project please call 0800 133 7039 to speak to a member of our helpful team. We offer free quotations as standard.

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Cosgrove & Drew have also invested heavily in other schemes to further the knowledge and skill set throughout the business, they have gained accreditations such as, ISO;9001, ISO;14001, Construction Line Gold Member, Safe Contractor and SMAS but to name a few.

Find out more about our accreditations HERE

Commissioning & Chlorination Projects


Cosgrove & Drew played a critical role in the successful redevelopment of Lucy Faithful House - part of an initiative by Oxford City Housing Limited (OCHL) to create low carbon and affordable homes in Oxford. The project involved the conversion of a former accommodation for rough sleepers into 36 apartments in Oxford’s city centre. Currently nearing completion, Cosgrove & Drew is proud to have supported the construction project with energy efficient design solutions, including water services, pipework, and plant commissioning.

Collegiate AC

Supporting this award-winning provider of student accommodation, Cosgrove & Drew deliver expert advisory services to enable planned upgrades for their heating infrastructure; provide Planned Preventative Maintenance to maintain existing plant assets; and operate a 24/7 engineer call out service. We have also been able to solve an ongoing issue in one residence which left students with restricted hot water for over two years.

Futura Learning Partnership

Supporting eleven schools and two sport centres in the Bristol & Bath area, Cosgrove & Drew deliver a Planned Preventative Maintenance (PPM) contract, working to manage and maintain existing plant assets, while also working to upgrade to meet changing legislative standards, and futureproof with renewable energy solutions.

Bristol Zoo

Bristol Zoo is a zoo in the city of Bristol in South West England. The zoo's stated mission is to [maintain and defend] biodiversity through breeding endangered species, conserving threatened species and habitats and promoting a wider understanding of the natural world. (Planned and Reactive Maintenance).

Redcar Hotel

Beside Henrietta Park and a 3-minute walk from Pulteney Bridge, this hotel comprised of 3, 1788 Georgian townhouses of which is now to being transformed into a 44 bed 4/5 star hotel.

Manufacturing Facility

The Bristol branch focuses on the history of the aircraft industry in Bristol. From the ancestor firms of British and Colonial Aeroplane Company to Bristol Siddeley.

Commissioning & Chlorination Enquiry

To discuss your Commissioning & Chlorination requirements or any other mechanical engineering projects please contact us via the enquiry form below or by phone - 0800 1337039
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core services

Cant find what you’re looking for? Call our team on 0800 133 7039 to discuss your project

who we work with

Since we began back in 2014, we have had to build our client base from a name nobody had ever heard of to a position where we feel our client base and reputation within the industry is second to none.

The ability to work collaboratively with our clients to deliver bespoke and complex solutions sets us aside from our competitors; we treat our clients as we would our own employees – with respect, an honest approach, and while always striving for the best outcome.

We provide expert mechanical engineering services to the following sectors:


"I have worked with Cosgrove & Drew since 2016. During this time, I have found them to be very professional both on and off site. Their team has an outstanding work ethic in respect of quality, health and safety and project delivery. They have provided Lorne Stewart with an excellent service and I can confidently recommend them as a solid and reliable Mechanical Services contractor."

Regional Director, Lorne Stewart Engineering
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our partners

Our Quality Management system is powered by Sitemate using the Dashpivot platform. We use Dashpivot by Sitemate for everything from how we handle variations, RFI’s, COI’s,  Site Diaries, Q&A, Snags, Issue Management and much more. Dashpivot has allowed Cosgrove & Drew to grow as a business and the support from the team has been great.

Our Health & Safety and HR needs are all taken care of by the use of Citation an online platform with 24 hour support. We can raise Risk Assessments, Method Statement, Document H&S matters whilst covering all HR aspects such as contracts of employment, legal support, Holiday and absence monitoring. Citation have been great to work with and are always at the end of the phone.

Simpro is a key tool for Cosgrove & Drew as a business. Simpro allows us to project manage every project with absolute precision. We can track materials, labour, margains, invoice and report so we know where we are financially at any given time. Simpro are very easy to work with and happy to help when needed.