Sustainable Building Services

Ventilation Design

Our Ventilation design services include a full CAD/ BIM drawing and integrated engineering calculations. 

We work across the building’s lifecycle, from concept to construction. Correctly sizing ventilation flow rates, system connections, and duct sizing is essential for successful building service projects.

Building Services- Detailed Design

Ventilation Design

Ventilation Design

Let us help with your detailed ventilation design. Once a set of design calculations has been done we can find the optimum balance between design air flows and required comfort under average and worst case conditions.  In our experience suppliers tend to undersize fans and ducts as it is slightly cheaper to install but then it may add more to your running costs and noise levels. 

We can specify equipment, pipe runs and provided full 2D or 3D spatial drawings if required. 

Duct Selection and Design

Often overlooked a good ventilation design goes hand in hand with a comfortable building.  A good design will take into account flow rates and duct sizing, duct loss and system balancing to not only achieve a good level of comfort but also reduce energy, noise and condensation issues. As can be seen in the graph simply selecting correct components in the system reduces the pressure needed by the fans to supply the air in the system, thus ensuring an efficient low energy system.

"Good modern Practises in design and operation can halve the fan and pump energy compared to a traditional design"


Independent Service Engineers

How We
Can Help

Traditionally heating/services were a standard work package handled by the trades and architects but buildings, regulations and the needs of the client have become more complex over time, and rightly so. Heating is integral to the comfort and well-being of your home/work and is only now been given proper consideration in the build. Also, often it can have the largest impact on operating cost for you in terms of bills and carbon impact over the long-term. In addition, there are a multitude of options available with renewable technologies in a fast-changing market. There can be a considerable cost benefit to have input from specialist independent building service engineers at several stages.


Sustainable Design

Over 18 years only doing low carbon and sustainable technology


Data Driven Design

Accuracy drives good decisions and saves money in plant capital and operational costs.


Practical Design

Longstanding experience of how systems interact and are delivered in the ‘real’ world. 

Use our decades of experience

Appointing an engineer to deal with the all services will save you time, money and energy!

Energy is complex!

our professional services Include:

Lùths Services are an independent services engineering consultancy who specialise in low energy and renewable design and implementation. 

Issues that may arise in Services