
Budget Estimating

Freelance Estimating

Blueprint Estimating
The construction bidding process is the key to getting profitable projects and growing your construction business. Simply put, it’s a competitive process where project owners invite construction companies to submit bids for their projects, so they can choose the best combination of price, experience and capability for their needs.
Whether you’re bidding on public projects, private construction projects or commercial projects, understanding how the construction bidding process works can be the difference between winning contracts and watching opportunities slip away. This guide takes you through every step, from initial bid solicitation to final contract formation, so you can improve your bid hit ratio and get more construction work.
Construction bidding process is a structured system that connects project owners with qualified construction contractors. When a project owner needs construction work done, they formally invite interested contractors to submit their proposals, including pricing, timelines and project delivery methods.
This competitive process ensures project owners get the best value while giving construction companies a fair chance to win new work. The bidding process varies depending on whether you’re dealing with public projects, private construction projects or specialized government projects.
Public Projects follow strict government regulations with mandatory bid bonds, detailed documentation requirements and open bid openings. These projects typically use the design bid build method and award contracts to the lowest qualified bidder.
Private Projects offer more flexibility in the tendering process. Depending on their needs and project complexity, project owners can use competitive pricing, negotiated tendering or even request for proposal (RFP) formats.
Commercial Projects often require extensive past project experience and may involve construction management delivery methods where you work directly with the project team throughout construction.
The bid solicitation phase begins when project owners advertise their construction projects. Depending on the chosen project delivery method, you’ll encounter different construction bids during this stage.
Open Bidding: Any qualified contractor or construction company can participate. Common for government projects and larger commercial projects.
Invitation-Only Bidding: Project owners invite specific construction companies based on past projects, reputation or pre-qualification requirements.
Request for Proposal (RFP): More detailed than standard bidding, requiring comprehensive project management approaches and technical solutions beyond just pricing.
Key Actions for This Phase:
Before you invest time in preparing contractor bids, do your due diligence on both the project and project owner. This analysis determines if submitting a bid makes financial and strategic sense for your construction business.
Project Evaluation Checklist:
Client Assessment:
This phase requires the most work and determines your competitive position. Creating an accurate cost estimate while keeping pricing competitive demands both technical expertise and market knowledge.
Developing Your Cost Estimate:
Start with detailed quantity takeoffs from the bid documents and project drawings. Break down every aspect of the project scope into measurable units, then apply current pricing for materials, labor costs and equipment needs.
Cost Categories to Include:
Cost Category | Description | Typical Range |
---|---|---|
Direct Construction Costs | Materials, Labor, Equipment | 65-75% |
Materials | All construction materials and supplies | 35-45% |
Labor Costs | Direct worker wages and benefits | 25-35% |
Equipment | Rental, operation, and fuel costs | 5-8% |
Indirect Costs | Project Support & Infrastructure | 8-12% |
Permits & Fees | Building permits, inspection fees | 1-2% |
Temporary Facilities | Site offices, storage, utilities | 2-3% |
Insurance & Bonds | Project insurance and performance bonds | 2-4% |
Project Management | Site supervision and administration | 3-5% |
Company Overhead | Business Operating Expenses | 8-15% |
Office Expenses | Rent, utilities, administrative staff | 4-8% |
Marketing & Business Development | Bidding costs, proposals, networking | 2-4% |
Equipment Ownership | Depreciation, maintenance, storage | 2-3% |
Contingency | Risk Allowance | 3-8% |
Scope Changes | Unforeseen conditions and modifications | 2-5% |
Market Fluctuations | Material and labor cost increases | 1-3% |
Profit Margin | Company Profit | 5-12% |
TOTAL PROJECT COST | All Categories Combined | 100% |
Pricing Strategy Considerations:
Your final pricing structure should reflect both your costs and strategic positioning. Consider the competitive landscape, your current workload and the long-term relationship potential with this project owner.For complex projects or those requiring specialized construction management, highlight value-added services that justify higher pricing than lowest bid competitors.
The bid package is your professional reputation and technical capabilities. Every document must show you understand the project requirements and can deliver project success.
Required Bid Documents:
Submission Requirements:
Different project types have different submission protocols. Government projects typically require sealed bids delivered to specific locations by exact deadlines. Private construction projects may allow electronic submissions or presentations to the project team.
Important Submission Details:
After contractors submit their bids, the project owner evaluates submissions based on predetermined criteria. Understand this evaluation process to position your bid effectively and prepare for contract negotiations.
Common Evaluation Criteria:
Negotiation Preparation:
Even in lowest bid situations, successful contractors often have clarification discussions or value engineering conversations. Prepare for these opportunities by:
Characteristics | 🏛️Public Projects | 🏢Private Commercial | 🏠Residential | 🏭Industrial | 🚧Infrastructure |
---|---|---|---|---|---|
PROJECT CHARACTERISTICS | |||||
Typical Project Value | $500K - $50M+ | $100K - $20M | $50K - $2M | $1M - $100M+ | $5M - $500M+ |
Project Duration | 6-36 months | 3-18 months | 2-12 months | 6-48 months | 12-60 months |
Complexity Level | Medium-High | Medium | Low-Medium | High | Very High |
BIDDING PROCESS | |||||
Bid Period Length | 4-8 weeks | 2-6 weeks | 1-3 weeks | 6-12 weeks | 8-16 weeks |
Competition Level | Very High | Medium-High | Medium | Low-Medium | High |
Typical # of Bidders | 8-15 | 4-8 | 3-6 | 3-5 | 5-10 |
Award Method | Lowest Qualified | Best Value | Negotiated | Best Value | Lowest Qualified |
FINANCIAL REQUIREMENTS | |||||
Bid Bond Required | Always (5-10%) | Sometimes (2-5%) | Rarely | Usually (5-10%) | Always (10-20%) |
Performance Bond | 100% Required | Often Required | Rarely Required | Usually Required | 100% Required |
Payment Terms | 30-45 days | 15-30 days | 15-30 days | 30-45 days | 30-60 days |
Typical Profit Margin | 3-6% | 6-10% | 8-15% | 5-8% | 2-5% |
DOCUMENTATION & COMPLIANCE | |||||
Documentation Level | Extensive | Moderate | Minimal | Extensive | Very Extensive |
Regulatory Compliance | High | Medium | Low | High | Very High |
Insurance Requirements | Extensive | Standard | Basic | Extensive | Maximum |
SUCCESS FACTORS | |||||
Key to Winning | Compliance + Price | Value + Relationship | Quality + Schedule | Expertise + Safety | Experience + Price |
Relationship Importance | Low | High | Very High | High | Medium |
Best for New Contractors | Difficult | Moderate | Excellent | Challenging | Very Difficult |
Competitive bid situations occur when multiple construction companies submit sealed pricing for the same project scope. This works best for standard construction projects with clear requirements and specifications.
Pros: Level playing field, transparent process, faster award decisions. Best For: Public projects, simple commercial projects, residential projects with standard designs
Negotiated tendering involves direct discussions between project owners and selected contractors before final pricing submission. This allows for collaborative problem solving and value engineering throughout the bidding process.
Pros: Better project understanding, ability to influence scope, stronger client relationships Best For: Complex projects, specialized construction types, fast track project schedules
Design bid build projects require construction companies to provide both design and construction services. Your bid must show your capabilities in both areas and how integrated project delivery benefits the client.
Pros: Single point of responsibility, faster project delivery, design construction coordination Best For: Projects that require innovation, tight schedules, specialized technical expertise
GMP contracts set a cost ceiling while allowing contractors to share in savings from efficient project delivery. These require detailed cost tracking and transparent financial reporting throughout construction.
Pros: Controlled costs for owners, profit upside for efficient contractors, collaborative approach
Best For: Large commercial projects, long term client relationships, projects with scope uncertainties
Winning bids starts long before the bid solicitation phase. Building relationships with project owners, construction managers and other project team members creates opportunities for future invitations and referrals.
Networking Strategies:
Don’t bid every project available, focus on projects that align with your capabilities and business goals. A higher hit rate on suitable projects generates better profits than winning marginal work.
Selection Criteria:
Track your bidding performance and learn from wins and losses. Knowing why you win certain types of bids and lose others helps refine your approach and improve future success rates.
Metrics to Monitor:
Many contractors focus on direct construction costs and forget to include project overhead costs, permit requirements or specialized equipment needs. This leads to unprofitable work even when you win the job.
Prevention Strategies:
Misunderstanding the project requirements leads to pricing errors that either eliminate you from the bid or costly surprises during construction. Review all bid documents and ask questions during the bid period.
Best Practices:
Many construction projects rely on specialized subcontractors but general contractors often fail to get firm pricing before bid submission. This creates risk in both bid accuracy and project execution.
Subcontractor Management Tips:
Different project owners value different aspects of contractor proposals beyond lowest bid. Understanding these priorities helps you position your bids effectively and build long term business relationships.
Value Drivers for Private Projects:
Value Drivers for Public Projects:
Whether you win or lose a bid, maintaining professional relationships with project owners creates opportunities for future work. Many construction companies get repeat business and referrals from clients who value their professionalism and capabilities.
Relationship Building Activities:
The construction bidding process timeline varies greatly depending on project complexity and type. Simple residential projects might have 2-3 week bid periods, while complex commercial or government projects often have 4-8 weeks for bid preparation. Large infrastructure projects can have bid periods of several months.
The key is to understand that project owners balance their need to thoroughly evaluate contractors against their need to start construction quickly. Private projects have fewer regulatory requirements so move faster than public projects.
Most successful construction contractors have a bid hit ratio of 10-30% depending on their market specialization and bid strategy. Rather than focusing on absolute numbers, focus on bidding projects where you have a genuine competitive advantage and can deliver profitable results.A lower bid hit ratio on carefully selected profitable projects usually generates better results than higher win rates on marginal work. Track your performance over time and adjust your selection criteria based on actual results.
When your price is significantly higher than others, first verify your estimate and identify any obvious errors or omissions. If your price reflects the project requirements, prepare clear explanations for the difference, focusing on value added services, quality standards or risk mitigation approaches.
Sometimes higher price means you have a better understanding of the project scope or you included items that others missed. Use these situations as learning opportunities to understand market expectations and refine your future bidding approach.
Bid errors create different solutions depending on project type and timing. For public projects, withdrawal options are limited and may require forfeiting bid bonds. Private projects usually allow more flexibility for good faith corrections.
The best approach is prevention through thorough review processes and double checking all calculations before submission. If errors occur, contact the project owner immediately to discuss options and document all communications for legal protection.
The importance of relationships vs price depends heavily on project type and owner priorities. Public projects emphasize objective criteria with less relationship influence, while private construction projects value past performance and working relationships more.
Even in lowest price situations, relationships influence whether you get invited to bid, get opportunities to clarify requirements and win future work. Focus on building genuine professional relationships based on competence and reliability rather than just social connections.
Expanding into new geographic markets requires careful consideration of additional costs, logistics challenges and local market knowledge. Factor in travel time, accommodation expenses, local permit requirements and reduced efficiency from working in unfamiliar areas.
Start with projects that offer exceptional profit potential or strategic value, like clients who might provide future work in your home market. Gradually build presence in new areas rather than making large geographic leaps that strain your resources.
Improving cost estimate accuracy requires tracking actual project costs vs bid estimates. Maintain detailed records of labor productivity, material costs and indirect expenses to build your own database of reliable pricing information. Attend training programs to know about construction estimating, join estimating organizations, and network with other contractors to stay current with market pricing. Consider investing in estimating software and databases that provide current cost information for your area and project types.
Past project experience carries a lot of weight in most bid evaluations, especially for complex projects or specialized construction types. Project owners want to know you can deliver results based on your experience rather than just low price.
Document your past projects with photos, client references and quantifiable results. Organize this information so you can quickly assemble relevant experience portfolios for different types of bids. Quality of past work matters more than quantity, especially for specialized or high profile projects.
I'm James, a professional cost estimator with extensive experience working across various sectors of the construction industry. Over the years, I've had the opportunity to collaborate with contractors, developers, and architects on projects of all sizes. I specialize in accurate budgeting, quantity takeoffs, and bid preparation that helps teams stay on track and competitive. View all posts by James Harden