Disclaimer

Last updated: June 2026

⚠️ Important — Please Read

Estima provides construction cost estimates for planning and budgeting purposes only. These are not formal quotations, bills of quantities, or professional engineering opinions.

Never commit to a construction project based solely on an Estima estimate. Always obtain formal quotes from licensed contractors and engineers.

Nature of Estimates

All cost figures generated by Estima are produced by a deterministic quantity-rate engineering calculation engine. This corresponds to a Preliminary / Conceptual Estimate (AACE International Class 4–5), prepared with limited project definition using parametric cost models rather than a detailed take-off from approved drawings. Estimates are based on:

Published construction cost references (RSMeans, RICS BCIS, ENR Cost Index)
Regional cost multipliers calibrated against general market data
International engineering standards (IBC, ACI 318, AASHTO, IEC 60364, and others)

An optional supplementary AI commentary (from Groq, Gemini, or Pollinations AI) may appear alongside the engineering estimate. This commentary does not affect the cost figures — it provides contextual market notes only and should be treated accordingly.

Despite the structured methodology, estimates remain approximations. At AACE Class 4–5 level, actual costs can differ from the stated range by −20% to +40% or more depending on site conditions and project specifics.

Factors That Can Affect Actual Cost

Site-specific conditions (soil type, access, topography)
Local contractor pricing and availability
Fluctuations in material prices (steel, cement, timber)
Currency exchange rate movements
Design complexity not captured in the inputs
Regulatory requirements and permit costs
Inflation between estimate date and construction start
Hidden defects discovered during construction
Changes in project scope during execution

Professional Advice

For any significant construction project, we strongly recommend:

Engaging a licensed quantity surveyor to prepare a formal bill of quantities
Obtaining at least three competitive quotes from licensed contractors
Consulting a structural engineer for any structural work
Engaging a geotechnical engineer if soil conditions are uncertain
Verifying all regulatory and permit requirements with local authorities

No Professional Relationship

Use of Estima does not create a professional relationship between you and Estima or its operators. The estimates provided do not constitute professional engineering, quantity surveying, or construction advice.

Limitation of Liability

Estima and its operators shall not be held liable for any financial loss, construction delays, disputes, or other damages arising from reliance on estimates generated by this platform. Use of the service is entirely at your own risk.

AI-Generated Content

The market insight section of each estimate may be generated by AI models (Groq Llama, Google Gemini, or Pollinations AI). AI-generated content may contain inaccuracies, outdated information, or hallucinations. Always verify AI-generated insights independently.

Contact

For questions about this disclaimer, contact sigmaconstructions508@gmail.com