Mechanical Design Consultancy & HVAC Design Services From Syntegra Group

At The Syntegra Group, we provide professional Mechanical Design Consultancy and HVAC Design Services across the UK through our specialist M&E consultancy division, BSG Ltd. Our experienced mechanical engineers work closely with developers, architects, contractors, and property owners to deliver practical, energy-efficient, and fully compliant mechanical building services solutions for projects of all sizes.

We understand that well-designed mechanical systems are essential for the performance, comfort, and long-term efficiency of any building. From heating and cooling systems to water services, ventilation, and energy infrastructure, every element must be carefully designed to ensure smooth operation and regulatory compliance. Our team combines technical expertise with a practical approach to create bespoke solutions tailored to the specific requirements of each project. 

Comprehensive Mechanical Design Solutions

Our consultants provide complete mechanical design services throughout all RIBA stages, from concept and feasibility through to technical design, construction support, commissioning, and project completion. We work across a wide range of sectors including residential, commercial, hospitality, healthcare, education, industrial, and mixed-use developments throughout the UK.

By becoming involved at an early stage, we help clients improve building efficiency, reduce operational costs, and ensure mechanical systems are fully integrated into the overall building design.

HVAC & Air Conditioning Design

Heating, ventilation, and air conditioning systems are a vital part of any modern building. Our HVAC design engineers create efficient and reliable systems that provide comfortable indoor environments while minimising energy consumption.

We design air conditioning systems, comfort cooling solutions, ventilation systems, and heat recovery systems for a variety of building types. Every design is carefully developed to achieve the right balance between occupant comfort, energy performance, and long-term reliability.

Hot & Cold Water Services

The Syntegra Group provides complete hot and cold water services design, including mains cold water systems, boosted cold water systems, hot water generation plant, and water distribution networks.

Our engineers assess building demand requirements, pressure management, storage capacity, and energy efficiency to deliver reliable and effective water systems that comply with UK regulations and industry standards.

Heat Generation & Sustainable Energy Solutions

As sustainability becomes increasingly important in construction, we help clients integrate energy-efficient and renewable technologies into their developments. Our services include the design of boiler plant rooms, district heating systems, combined heat and power systems, and renewable heating solutions.

We work closely with project teams to identify the most suitable low-carbon technologies that support environmental targets while maintaining reliable building performance.

Drainage & Infrastructure Design

Our consultancy team also provides above ground and below ground drainage design, including Sustainable Urban Drainage Systems (SuDS) and hydrology assessments. We develop practical drainage strategies that effectively manage water flow, reduce flood risks, and meet local authority and environmental requirements.

In addition, we provide specialist car park ventilation design and gas distribution system design for commercial and residential developments across the UK.

Building Management & Control Systems

Modern buildings require intelligent control systems to improve efficiency and operational performance. We design Building Management Systems (BMS) that allow building operators to monitor and manage heating, cooling, ventilation, and energy systems more effectively.

These smart control solutions help reduce energy consumption, improve system performance, and support long-term operational savings.

Fully Compliant Mechanical Design Services

All mechanical systems designed by The Syntegra Group are developed in accordance with current UK Building Regulations, industry standards, and best practice guidelines. Our team maintains a strong focus on quality, compliance, coordination, and technical accuracy throughout every stage of the project.

Why Choose The Syntegra Group?

At The Syntegra Group, we are committed to delivering reliable, practical, and cost-effective mechanical consultancy services that support successful project delivery. Our experienced engineers combine technical knowledge with a collaborative approach to ensure every solution is tailored to the client’s requirements, programme, and budget.

Whether you require HVAC design, mechanical performance specifications, drainage design, renewable energy integration, or complete mechanical building services consultancy, our team provides the expertise and support needed to deliver high-quality and fully compliant developments across the UK.

Our Mechanical Design Team Specialise In:

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Question: What is mechanical design consultancy?

Answer: Mechanical design consultancy covers the design of the mechanical building services that control the internal environment of a building. This includes heating, ventilation and air conditioning (HVAC), domestic hot and cold water, above-ground drainage, gas, renewable heat systems, building management controls and specialist systems such as smoke ventilation and process cooling.

A mechanical design consultant produces heat loss and heat gain calculations, system selections, schematics, plant schedules, drawings and specifications to allow the systems to be procured, installed and commissioned, and to demonstrate compliance with Building Regulations and CIBSE guidance.

Question: What does a mechanical design include?

Answer: Typical mechanical design deliverables include:

  • Heating and cooling load calculations
  • Heat pump, boiler and chiller selection
  • Ventilation strategy and air handling unit design
  • Ductwork and pipework routing and sizing
  • Domestic hot and cold water services design
  • Above-ground drainage and rainwater design
  • Building management system and controls philosophy
  • Plant room and riser layouts
  • Equipment schedules and specifications
  • Part L and Part F compliance documentation

Drawings are commonly produced in Revit or AutoCAD and coordinated with the architectural and structural models.

Question: How are heating systems selected for new buildings?

Answer: Heating system selection now needs to respond to the Future Homes Standard and Part L 2021, which effectively require low-carbon heating in new homes and set challenging carbon targets for non-domestic buildings. Consultants typically evaluate air source and ground source heat pumps, heat networks, direct electric systems and, where justified, high-efficiency gas systems, considering capital cost, running cost, carbon emissions, space requirements, noise and planning policy.

The selected strategy is normally set out in the Energy Strategy Report for planning and carried through into the detailed mechanical design.

Question: What ventilation strategies do mechanical consultants design?

Answer: Ventilation design must satisfy Building Regulations Part F, overheating requirements under Part O, and acoustic and air quality constraints. Options include natural ventilation, mechanical extract ventilation, mechanical ventilation with heat recovery (MVHR), mixed-mode systems and full air conditioning.

The consultant selects the strategy based on building type, occupancy, external noise and pollution, and energy targets, and uses building simulation where necessary to demonstrate that internal conditions will be acceptable.

Question: Do mechanical designs need to consider overheating?

Answer: Yes. Approved Document Part O requires new residential buildings to limit solar gains and provide adequate means of removing excess heat. Mechanical design plays a key role through ventilation rates, purge ventilation, heat recovery bypass and, where necessary, comfort cooling. Consultants coordinate with the overheating assessment (TM59 or the simplified method) to ensure the mechanical design delivers compliance.

Question: What is a mechanical services specification?

Answer: A mechanical services specification is a written document that defines the standards, materials, equipment performance, installation requirements, testing and commissioning obligations for the mechanical installation. It is used alongside the drawings for tendering and forms part of the construction contract.

Specifications may be prescriptive, naming specific equipment, or performance based, allowing the contractor to select equipment that meets defined criteria.

Question: How does mechanical design interact with BREEAM and sustainability assessments?

Answer: Mechanical design directly influences BREEAM credits for energy (Ene 01), thermal comfort (Hea 04), indoor air quality (Hea 02), water consumption (Wat 01), refrigerant impacts (Pol 01) and NOx emissions (Pol 02). Designing with the assessment criteria in mind from the outset allows credits to be achieved cost-effectively.

Similar principles apply to Passivhaus, WELL, LEED and net zero carbon frameworks.

Question: Why choose Syntegra Group for mechanical design consultancy?

Answer: Syntegra Group's mechanical engineers design HVAC, plumbing, drainage and renewable heating systems for projects throughout the UK, from individual dwellings to large mixed-use and commercial schemes. We use dynamic simulation modelling to optimise designs and provide fully coordinated BIM deliverables.

Our integrated approach means mechanical design is developed alongside our energy strategy, overheating, acoustic, air quality and BREEAM services, ensuring that planning commitments are deliverable and that the completed building performs as intended.