Guides & Answers

The practical difference is when the firm joins the project and who carries the financial risk. A general contractor (GC) is typically brought on after design is complete, bids the documents, and signs a contract to deliver the finished work for an agreed price. The GC hires and pays the subcontractors, owns the means and methods, and absorbs cost overruns that fall inside its scope.

A construction manager (CM) is engaged during planning or design and works as an extension of the owner's team. The CM produces budgets and estimates while drawings are still developing, advises on constructability and value engineering, manages procurement, and coordinates trade contractors. Depending on the delivery model, a CM may hold the trade contracts (CM at-risk with a guaranteed maximum price) or act purely as an agent for the owner.

For public owners in Northeast Florida — school districts such as Duval County Public Schools, and authorities such as JEA, JTA, and JAA — the choice usually comes down to how much of the project's cost and schedule risk the owner wants to transfer, and how early independent cost validation is needed. Hard-bid GC delivery gives price certainty late; CM delivery gives cost visibility early and more control over phasing on occupied campuses.

Because Spencer C&E is licensed for both general contracting and professional civil engineering, owners can start with construction management or pre-construction support and continue with the same team through general construction and closeout. That single point of accountability removes the handoff gap where scope, budget assumptions, and compliance requirements are most often lost.

School work is not ordinary commercial work. Florida's State Requirements for Educational Facilities (SREF) govern everything from egress and fire separation to playground surfaces and secure vestibule design, and district building officials inspect against them. A contractor unfamiliar with SREF will discover requirements after the notice to proceed, when changes are most expensive.

Screening matters just as much. Crews working on an active campus must clear background screening under the Jessica Lunsford Act, badge in, and stay inside defined work zones with separate access and no interaction with students. Sequencing is planned around bell schedules, testing windows, summer break, and bus loops — not around the crew's convenience.

Ask each candidate five direct questions: What SREF-governed work have you completed? How do you phase around occupied classrooms? Who is your on-site superintendent and what is their school experience? How do you document daily activity for a district audit? What is your bonding capacity and current backlog?

Finally, look at the contractor's certification profile. DBE, WOSB, MBE, and JSEB certifications can support a district's participation goals on state and federally assisted work, which matters to the procurement office evaluating your submittal.

Spencer C&E has delivered secure vestibules, ADA accessibility upgrades, access control improvements, interior modernization, pedestrian safety work, and facility condition assessments on active Northeast Florida campuses, all phased to keep classes in session.

Preconstruction is where a commercial project's cost is actually determined. Once drawings are complete and construction has started, most of the cost is already fixed by design decisions. Working the problem early — while layout, structure, systems, and site work are still adjustable — is the only inexpensive time to change the outcome.

A full preconstruction scope typically covers: conceptual estimating at 30/60/90 percent design milestones; constructability and plan review to catch coordination conflicts between disciplines; value engineering that documents alternatives with real cost deltas rather than blanket scope cuts; site investigation covering utilities, drainage, and access; permitting and agency review strategy; long-lead procurement planning; and a phasing plan for occupied or partially occupied facilities.

For publicly funded work, preconstruction also means confirming that the project's documentation, procurement approach, and participation goals line up with the funding source before a solicitation is issued. Discovering a compliance gap during construction is far more disruptive than resolving it during planning.

Spencer C&E delivers preconstruction, project estimating, and plan review as standalone services or as the front end of a design-assist or general construction engagement across Jacksonville and Northeast Florida.

Licensing comes first. The Florida Department of Business & Professional Regulation licenses general contractors and professional engineers, and public owners verify status before award. Spencer Construction & Engineering is DBPR-authorized to provide both professional civil engineering and general contracting services — which is uncommon and lets one firm carry a project from engineering through construction.

Insurance and surety come next: general liability, auto, workers' compensation, and the ability to furnish payment and performance bonds at the required limits. Agencies also review current backlog to confirm the contractor can absorb the work.

Diversity and small business certifications are the third layer. Disadvantaged Business Enterprise (DBE) certification applies to USDOT-assisted work through FDOT, JTA, and JAA. Woman-Owned Small Business (WOSB) applies to federal contracting. Minority Business Enterprise (MBE) and Woman/Minority Business Enterprise (W/MBE) certifications are used across state and local programs, and the Jacksonville Small & Emerging Business (JSEB) program applies to City of Jacksonville work.

Spencer C&E holds JSEB, WOSB, MBE, W/MBE, and DBE certifications. For a prime contractor building a responsive proposal, that combination can satisfy multiple participation categories with a single qualified subcontractor rather than several.

Mixed-funding projects — a municipal grant plus private equity, a federal pass-through plus a developer contribution, a district capital allocation plus foundation money — are common in Northeast Florida and routinely underestimated. The mistake is treating compliance as a single overlay. In reality, obligations stack.

Start with a funding matrix built before the notice to proceed. Map each funding source to the work it pays for, then list what that source requires: Davis-Bacon or state prevailing wage, Buy America provisions, DBE or other participation goals, procurement and competition thresholds, environmental review, retainage and payment timing rules, insurance and bonding limits, and reporting cadence. Where two sources conflict, the stricter requirement governs the shared scope.

Cost segregation is the operational backbone. Pay applications, schedule of values line items, subcontractor invoices, and change orders should be coded to funding source from day one. Retrofitting that coding at closeout is how projects lose reimbursement.

Documentation discipline follows: certified payrolls collected weekly and reviewed, not just filed; participation tracked against goals monthly with good-faith-effort records; daily reports, material certifications, and inspection records tied to the correct pay period; and a single change order log that shows which funder absorbs each cost.

Owners should expect their contractor to bring this structure, not to ask for it. Spencer C&E builds the funding matrix and reporting structure during preconstruction, so the first pay application is already audit-ready.

Timelines vary by parcel, but the phases are consistent. Due diligence and survey, including geotechnical borings, wetland delineation, and utility research, typically runs four to eight weeks. Civil design and engineering for grading, stormwater, water and sewer, and access takes roughly eight to sixteen weeks depending on complexity and how many revisions the concept goes through.

Permitting is the least predictable phase and the one most often underestimated. A project may need City of Jacksonville site plan and land development review, JEA water and sewer availability and construction plan approval, an environmental resource permit from the St. Johns River Water Management District, an FDOT access permit for state road connections, and an NPDES stormwater notice of intent. These reviews overlap only partially, and each comment cycle adds weeks.

Construction itself — clearing, earthwork, drainage structures, underground utilities, subgrade and base, paving, and final stabilization — commonly runs four to nine months for a typical commercial or residential site, with Florida's summer rainy season a real schedule factor for earthwork and compaction.

The fastest way to compress the total is to start utility coordination and permitting strategy during design rather than after. Spencer C&E's combined civil engineering and construction capability lets that coordination begin in preconstruction.

Start with credentials and jurisdiction fit. Confirm Florida professional engineering licensure and ask specifically which agencies the firm has permitted through — City of Jacksonville, JEA, JTA, FDOT District 2, and the St. Johns River Water Management District each have their own review culture and submittal expectations. Local reviewer familiarity shortens schedules in a way no generic qualification does.

Then look at relevant scope. Sidewalk and ADA ramp reconstruction, curb and gutter, drainage structures, stormwater conveyance, water and sewer mains, and roadway restoration each have their own detail standards and inspection requirements. Ask for projects that match yours in type and size, and call the references.

Ask how the firm participates during construction. Engineers who answer RFIs promptly, visit the site, and stay engaged through record drawings prevent the change orders that surface when design intent is unclear in the field.

Finally, get the commercial terms in writing: deliverables by phase, number of permit revision cycles included, how construction-phase services are billed, and who owns the drawings. Spencer C&E provides civil engineering and construction under one contract, so design decisions are tested against constructability and budget before the plans are sealed.

Most public construction dollars carry participation requirements. Federally assisted transportation work through FDOT, JTA, or JAA carries DBE goals under USDOT rules. Federal contracting has WOSB goals. State and local programs recognize MBE and W/MBE certification, and the City of Jacksonville operates the JSEB program for small and emerging local firms. When a solicitation includes a participation goal, the responsiveness of a proposal can turn on whether certified firms are included and documented.

For a prime contractor assembling a team, a firm holding several certifications is efficient: one qualified subcontractor can address multiple participation categories, with one set of certification documentation to attach and one relationship to manage.

It is worth being precise about what certification does and does not do. It does not substitute for capability. Agencies still evaluate licensure, bonding, safety record, staffing, and past performance, and a certified firm that cannot perform creates a bigger problem than it solves.

Spencer Construction & Engineering is a woman-owned firm holding JSEB, WOSB, MBE, W/MBE, and DBE certifications, licensed by Florida DBPR for both professional civil engineering and general contracting, with delivered work on active school campuses, municipal infrastructure, and private development across Northeast Florida.

An estimate is only as good as its basis. A defensible estimate names the drawing set and date it was taken from, lists what is included and excluded, states the assumed schedule and escalation, and separates hard cost, general conditions, contingency, and fee. If those elements are missing, the number cannot be defended to a board, a lender, or a procurement committee.

Accuracy also tracks design maturity. A conceptual estimate at 30 percent documents carries a wider range than a detailed estimate at 90 percent, and the contingency should reflect that honestly rather than being trimmed to reach a target.

Pricing must be local and current. Northeast Florida subcontractor availability, material lead times, and site conditions — soft soils, high water table, hurricane-season sequencing — move numbers in ways national cost databases do not capture.

Pair the estimate with a plan review. Coordination conflicts and missing scope found on paper are cheap; found in the field they become change orders. Spencer C&E provides project estimating and plan review as standalone services for owners validating a budget or testing feasibility before committing to a bid.

In traditional design-bid-build, the builder sees the drawings only after they are complete. Design-assist changes the sequence: the construction team joins during design development and contributes real-time pricing, constructability review, means-and-methods input, and long-lead procurement planning while the design is still adjustable.

The design professional remains responsible for the design. The builder is not designing the project — it is testing the design against cost, schedule, and field reality, and documenting the tradeoffs so the owner can make informed decisions before the documents are sealed.

Design-assist earns its keep when the budget is fixed and the scope is not, when the schedule requires ordering long-lead equipment before drawings are final, when phasing on an occupied campus or facility drives the sequence, or when site conditions and existing utilities carry meaningful unknowns.

It is less useful on small, simple, fully defined projects where competitive hard-bid pricing on a complete drawing set is the most efficient route.

Because Spencer C&E holds both engineering and general contracting authority, our design-assist engagements can extend from concept through construction and closeout without changing teams mid-project.