Sigma Contracting

Preconstruction Services

“Congratulations on the successful completion of Phase I of the Estrella Professional Center in Goodyear. As a fee-based real estate developer, it is essential to have a competent, quality oriented contractor to rely on when developing a client’s assets. Your professional staff and winning attitude have truly been a value added component to this project. From conceptual estimating, top groundbreaking, to substantial completion of the building, your team has made this experience one to remember… I look forward to working with Sigma Contracting again on Phase II of the Estrella project!”
Kevin Helland, LandKin Development

Site Analysis    Constructability Reviews/ Feasibility Studies


After over twenty-five years in construction, we KNOW that the overall success of a construction project, no matter the size or delivery method, is determined by the decisions made at the very beginning. Sigma’s pre-construction services offer significant advantages to Owners on projects of every scope and size.

What makes our pre-construction processes different?

·         We use our database of over twenty five years of construction information to assist our clients in the creation of highly accurate cost models.

·         We solicit input from all stakeholders, including senior management, estimators and superintendents

·         We determine the viability of a project through analysis of proposed sites, creating conceptual budgets, and determining appropriate construction techniques and schedules.  

·         We confirm the actual scope of work and constructability of a project and develop a detailed construction schedule that is realistic and reliable to meet the needs of both the Owner(s) and design team.  

Our approach has paid off.  We have saved our clients’ time, controlled their costs and increased the project value.

Sigma’s Preconstruction services include:

·         Assistance in site selection and planning

·         Constructability review of construction documentation

·         Conceptual budgeting and estimating

·         Establishment of Guaranteed Maximum Pricing

·         Life cycle analysis

·         Scheduling

·         Subcontractor prequalification and selection

·         Value engineering


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