Commercial HVAC tenders require pricing that reflects the project’s actual scope, materials, equipment, labour requirements, and installation conditions. 

Small changes in project requirements can affect the tender value. Equipment specifications, ductwork, access conditions, and trade coordination can all change the work involved. 

For contractors reviewing what to review before pricing an HVAC tender, the drawings, specifications, schedules, and supplier information should be reviewed together. This gives the contractor a consistent basis for developing the tender price. 

Reviewing Project Scope Before Pricing 

Start by establishing the scope covered by the tender documents. 

Review the drawings alongside the specifications, equipment schedules, and other project information. Identify the systems, equipment, ductwork, associated materials, installation requirements, testing, commissioning, and responsibilities assigned to the HVAC contractor. 

A complete document review can also reveal differences between drawings and specifications. Resolve these differences before pricing the affected work. 

Assessing Equipment and Material Requirements 

Equipment and material selections can directly affect tender pricing. 

Equipment schedules may specify particular manufacturers, capacities, configurations, or performance requirements. These selections can also affect ductwork, pipework, supports, controls, insulation, access provisions, and commissioning requirements. 

Check supplier quotations against the tender documents. Confirm that the quoted products and quantities meet the specified requirements. 

Considering Labour and Installation Conditions 

Labour allowances should reflect the conditions on the project. 

Access restrictions, high-level installations, plantroom arrangements, staging requirements, working areas, and coordination with other services can all affect installation productivity. 

Standard labour allowances may not reflect these conditions. Review the actual installation requirements before setting the labour allowance. 

Also review the HVAC project requirements documented for the specific project. This provides a basis for assessing the labour required for the work rather than relying only on standard productivity rates. 

Checking Ductwork and Associated Works 

Ductwork can represent a significant part of an HVAC package. Review it alongside the equipment and overall system requirements. 

Check duct sizes, configurations, insulation, supports, penetrations, access requirements, and installation conditions. These factors can affect both material quantities and labour. 

Also review associated works where they form part of the tender scope. These can include supports, builder’s work, equipment connections, controls, testing, and commissioning. 

Reviewing Specifications and Tender Conditions 

Specifications can contain requirements that do not appear fully in the drawings or schedules. 

Check for material standards, equipment requirements, insulation, testing and commissioning, controls, documentation, performance requirements, and installation standards. 

Review the tender conditions as well. Check exclusions, provisional allowances, qualifications, and responsibilities between trades. 

Identifying these requirements before submission gives the contractor a clearer basis for pricing the documented scope. 

Comparing Supplier Pricing with the Tender Scope 

Supplier quotations provide a useful cost reference. However, do not assume that a quotation covers the complete tender requirement. 

Check quantities, product specifications, inclusions, exclusions, freight, lead times, and separately priced items before using supplier pricing in the tender. 

This review can identify items that require separate pricing or clarification before the tender is submitted. 

Building a Reliable Tender Price 

Accurate tender pricing depends on a consistent review of the project documentation, material requirements, labour allowances, supplier information, and installation conditions. 

Knowing what to review before pricing an HVAC tender helps contractors identify scope gaps and pricing issues before submission. 

ePlumbing Estimators prepares detailed estimates for selected HVAC projects. The process includes reviewing project documentation, quantities, supplier information, labour requirements, and project conditions. 

For contractors requiring support with detailed commercial tenders, HVAC estimating can provide a structured review of the documented scope before the tender price is submitted. 

Send your tender documents for review before submitting your next project.