Value Engineering in Mechanical Design: Getting the Right Design at the Right Price

Value engineering is a critical process in mechanical design, ensuring that projects are delivered at optimal cost without compromising performance, efficiency, or long-term value. At Beattie Air, we have spent 37 years refining our approach, leveraging extensive experience to provide clients with options that balance initial capital costs with ongoing operational expenditure (OPEX). By taking a holistic approach, we create designs that not only meet today’s requirements but also deliver lasting value for years to come.

The Importance of Value Engineering

Value engineering is more than just cost-cutting – it’s about designing smarter. By evaluating different design approaches, materials, and systems, we identify the most efficient solutions that provide long-term savings. The goal is to ensure that every dollar spent on mechanical services contributes to overall efficiency, ease of maintenance, and operational longevity.

Key Considerations in Value Engineering

1. Client Options and Cost-Saving Advantages

One size does not fit all when it comes to mechanical design. Providing clients with multiple design options allows them to make informed decisions based on their budget and long-term operational expectations. Options may include different HVAC system types, varying levels of automation, and alternative materials – all of which impact both upfront costs and lifetime expenses.

2. Alternative Materials and Equipment

Selecting the right materials and equipment plays a crucial role in balancing cost, durability, and energy efficiency. Some key considerations include:

• Ductwork: Galvanized steel vs. fabric vs. pre-insulated duct board, depending on budget and thermal efficiency requirements.
• Piping: Copper vs. PEX vs. stainless steel for hydronic systems, factoring in longevity, corrosion resistance, and installation costs.
• HVAC Units: Comparing inverter-driven systems for improved energy efficiency vs. standard units with lower upfront costs.
• Heat Recovery Systems: Evaluating whether investing in energy recovery ventilators (ERVs) or heat exchangers can reduce long-term operating expenses.
• Insulation: Choosing between traditional elastomeric foam, polyethylene foam, or fiberglass insulation for different thermal performance needs.
• Refrigerants: Opting for low- global warming potential (GWP) refrigerants to meet sustainability goals while ensuring compliance with evolving regulations.

By considering these options, we help clients strike the right balance between cost-effectiveness and long-term efficiency.

3. Long-Term Maintenance and OPEX Considerations

While initial capital cost is an important factor, long-term operational costs should never be overlooked. A cheaper system may lead to higher energy bills, frequent breakdowns, and costly repairs. We assess the full lifecycle cost of the system, factoring in:

• Energy efficiency to reduce power consumption
• Maintenance requirements to avoid excessive servicing costs
• Component durability to minimise replacement frequency
• Reliability to prevent downtime and disruptions

4. Accessibility and Component Replacement Costs

Poorly designed systems can lead to unnecessary labour costs during routine maintenance or equipment replacement. Thoughtful design considers:

• Ease of access for servicing – avoiding costly and time-consuming disassembly
• Component replacement strategies – ensuring key parts can be swapped out without major system disruption
• Clearance space for technicians – reducing maintenance complexity and costs

5. Equipment Warranty Periods

Selecting equipment with robust warranties can significantly impact OPEX. Systems with longer warranty periods often indicate higher reliability and lower maintenance costs. Factoring warranty terms into the design selection ensures clients get the best return on investment.

6. Square Meter Rates and Building Type Considerations

Mechanical system costs vary significantly depending on building type, usage, and size. A well-engineered solution factors in square meter rates, ensuring that cost efficiency is maintained across different project scales:

• Commercial buildings may require higher-performing HVAC solutions with integrated BMS systems
• Industrial facilities demand robust, heavy-duty systems with redundancy for critical operations
• Residential projects prioritise comfort and energy efficiency, often with a focus on heat recovery and zoning options

7. Sustainability from a Maintenance Perspective

Sustainability is not just about reducing energy use – it extends to long-term system maintenance and component longevity. A well-designed mechanical system should incorporate sustainability measures that reduce environmental impact over time, such as:

• Use of recyclable materials in ductwork, piping, and insulation to minimise waste.
• Energy-efficient HVAC systems that lower carbon footprints and qualify for green building certifications.
• Smart maintenance strategies using predictive analytics and remote monitoring to reduce unnecessary servicing and extend equipment life.
• Water conservation measures such as condensate recovery systems in cooling units.
• Phasing out high-GWP refrigerants in favour of environmentally friendly alternatives to meet regulatory compliance and reduce greenhouse gas emissions.
• Designing for adaptability so that future upgrades can be implemented without excessive retrofitting costs.

By integrating sustainability into maintenance planning, we help clients lower long-term costs while meeting corporate sustainability objectives.

Experience You Can Trust

With a legacy spanning 37 years, Beattie Air has successfully implemented value engineering principles across a wide range of projects. We draw from our extensive experience to provide practical, cost-effective solutions that stand the test of time. Our expertise ensures that every mechanical design is optimised for efficiency, affordability, and long-term success.

Final Thoughts: Smart Design for Maximum Value

Value engineering is not about cutting corners – it’s about making smart, informed choices that benefit both the client and the project’s lifecycle. By carefully considering cost, efficiency, maintenance, and system longevity, we deliver designs that provide the best value at the right price.

If you’re looking for a mechanical design partner that prioritises smart engineering, cost efficiency, and long-term value, Beattie Air is here to help. Contact us today to discuss how we can optimise your next project.