Mechanical fit-outs

Specialist plumbing, heating and HVAC solutions to help you transform any space to a high specification.

For more than 50 years, Aveat has helped fit-out contractors deliver complex refurbishments in demanding commercial spaces, including offices, retail units, restaurants, hotels, schools, and universities.

Having provided fully tailored mechanical services for countless fit-out projects in Central London and the South East, we understand what it takes to produce quality plumbing and heating systems in live buildings that meet uncompromising design standards – even in premises with tight footprints.

Our role in the fit-out process is simple: make the mechanical package one less thing for you to worry about.

Speak to an 
expert

To speak with a member of our management team and discuss your upcoming build or refurbishment project, please get in touch.

Mechanical services from London’s go-to fit-out specialists

Even the most carefully planned fit-outs can be challenging. When you’re juggling existing services, limited access, phased handovers and demanding end clients, the calibre of your subcontractors matters. You need a mechanical partner who understands how to work within these constraints, not against them.

This is where we come in.

How we help

Aveat provides specialist mechanical services for large-scale and high-end refurbishments, covering:
Commercial plumbing alterations and upgrades
Heating system replacements and reconfigurations
Plant room upgrades and restricted-access installations
HVAC adaptations, upgrades, and commissioning
Energy-efficient and low-carbon solutions
Ongoing maintenance and aftercare

What to expect
from Aveat

Experience in live and high-spec environments

Working in occupied buildings and prestige spaces requires care, coordination, and attention to detail. Our teams operate discreetly, protecting finished areas and finalising our installations in line with a premium aesthetic.
01

Responsive delivery

Fit-out schedules move fast, and delays can quickly become costly. We’re structured to respond quickly on site, resolve issues decisively, and keep progress moving, even when conditions inevitably change.
02

Practical thinking, not theoretical solutions

Refurbishments often reveal hidden challenges. We take a pragmatic approach to design development and problem-solving, proposing solutions that are buildable, compliant, and commercially sensible.
03

Straightforward
communication

You’ll never be left chasing answers when you choose Aveat. We maintain clear lines of contact, provide realistic timelines, and flag risks early so they can be managed before they affect the success of the project.
04

Leading the way with renewable innovations

Sustainability is no longer limited to new builds. Landlords and tenants alike expect refurbished offices and retail spaces to perform better, cost less to run, and align with ESG objectives.

Aveat supports fit-out contractors by upgrading mechanical systems to modern standards. We have the skills, the training and the technology to improve the efficiency of the space without unnecessary disruptions or over-engineering our designs.
From high-performance HVAC systems to low-carbon heating technologies and intelligent controls, we help create comfortable, compliant spaces that are built for long-term use and value.
Find out more

Take a look at our latest projects

Discover how we’ve supported the work of various fit-out companies in Central London and the surrounding areas.

As Head of Customer Services for a busy housing developer, my biggest challenge is finding contractors who communicate as well as they plumb. Aveat excels at both. Their office staff provides clear scheduling updates, and their site technicians are excellent at explaining repairs to residents. They handle everything from minor snags to emergency leaks with total professionalism. I cannot recommend them highly enough for any developer prioritising aftercare quality.

C. Borges, Head of Customer Services, Weston Homes Plc

I had the pleasure of working with Aveat on a Cat-A refurbishment in Fitzrovia, just off Hanover Square. The design had its complications, including the installation of a hybrid VRF system within a raised access floor void and additional capital plant on an already heavily congested roof. Aveat’s team were proactive and attentive throughout the programme, handling all elements of the project professionally and promptly. I am looking forward to working with them again.

J. Neame, Services Manager, Parkeray Interiors Ltd

We have worked closely with Aveat on our Springstead Village Development and their performance has been exceptional throughout. The quality of workmanship has been consistently high. Their team is reliable, well organised and works collaboratively with our wider project team which has helped maintain programme and performance targets. We have developed a positive working relationship and have no hesitation in highly recommending Aveat.

T. O’Leary, Senior Quantity Surveyor, Bellway Homes

Ardmore has enjoyed working with Aveat for over ten years and in this time, we have grown a very strong partnership. Aveat are an extremely important part of our supply chain and are a company we can always rely on.  They provide us with robust pre-construction support through to quality delivery on our projects.  Aveat’s management team are professional, knowledgeable, supportive and engaged with our business. We hope our relationship continues to grow from strength to strength.

S. Watson ​​​​, Group Supply Chain Manager, Ardmore Group
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