Bidding Masonry for Schools, Park Districts and Municipalities: Prevailing Wage, Bonds and What Actually Changes

The short answer

Public masonry work is not private masonry work with extra forms. Prevailing wage, certified payroll, bonding, a rigid bid process and — on school buildings — a hard summer window change how the job is priced, staffed and sequenced from the first site visit.

And one myth needs killing at the top, because it costs public bodies money every year: you do not have to be a union contractor to bid public work in Illinois. The Illinois Prevailing Wage Act requires that covered workers be paid the prevailing hourly rate for their trade and county. It does not require union affiliation. Qualified non-union contractors bid and perform public masonry routinely.

Emerald Masonry LLC is a licensed, bonded and insured, non-union commercial masonry contractor serving Chicago and the Chicagoland suburbs. Free on-site assessment: (708) 288-1696.

As with anything touching statutory compliance: confirm current requirements with the awarding public body and the Illinois Department of Labor. This explains how these projects work in practice; it is not legal advice.

What changes when the owner is public

| | Private commercial | Public works | | --- | --- | --- | | Wages | Contractor's own rates | Prevailing rate by trade and county | | Payroll reporting | None to the owner | Certified payroll on a required schedule | | Award | Negotiated or invited bid | Formal advertised bid, often lowest responsible bidder | | Bonding | Sometimes | Bid bond, then performance and payment bonds, commonly at full value | | Qualification | Owner's discretion | Published responsible-bidder criteria | | Scope changes | Change order between two parties | Documented, often board-approved | | Schedule | Negotiable | Frequently fixed to a school or fiscal calendar | | Records | Contractor's practice | Subject to public records expectations |

None of that changes the masonry. All of it changes the bid.

Prevailing wage, in plain terms

The Illinois Prevailing Wage Act requires that laborers, workers and mechanics employed on covered public works be paid not less than the prevailing hourly wage — including fringe benefit value — for that trade in that locality. Rates are published by the Illinois Department of Labor, broken out by county and classification, and they are revised periodically.

What this means practically for a masonry bid:

• The labor rate is a floor, identical for every bidder. Nobody wins a public masonry job on cheaper labor.
• Classification matters. Bricklayer, mason tender and laborer classifications carry different rates, and misclassifying work is where contractors get into trouble.
• Fringe benefits count toward the rate whether paid as benefits or as wages.
• Rates can change during a long project, so a bid on a multi-phase job should say how that is handled.
• Certified payroll is the enforcement mechanism — a sworn record of who worked, in what classification, for how many hours, at what rate, filed on the required schedule.

Certified payroll is genuine administrative work. A contractor who has never done it will either under-price it or fail at it, and both are the public body's problem eventually.

And to repeat the point that matters most to a district weighing its bidder pool: paying prevailing wage is a compliance obligation, not a union membership test. A public body that assumes otherwise is narrowing its own competition.

Bonding is a real qualification threshold

Most public masonry bids require a bid bond with the proposal — assurance that the bidder will enter the contract if awarded — and then performance and payment bonds on award, frequently at 100% of contract value.

That is a genuine filter. Bonding capacity is underwritten, and a contractor's ability to bond a $400,000 façade restoration is a meaningful signal about its financial stability and its track record. It is also why a public body should confirm bonding early, and why a contractor should not spend two weeks on a takeoff before confirming it can bond the number.

Responsible bidder criteria: read them first

Many Illinois public bodies attach qualification requirements beyond price. Depending on the entity these can include insurance limits and coverage types, bonding, safety and OSHA record, apprenticeship or training program participation, demonstrated experience on comparable work, compliance history, and licensing or registration.

These matter in both directions. For a contractor, they can disqualify an otherwise low bid over a box that was never checked. For a public body, they are the primary tool for keeping the award away from a bidder who priced the work by leaving things out.

Writing a masonry scope a public body can actually bid

The most common failure we see in public masonry procurement is not fraud or incompetence. It is a scope too vague to compare bids against.

"Tuckpoint the north and east elevations of the field house" produces four bids that are four different projects. One bidder assumed spot repointing, one assumed the full elevation, one included the parapet, one excluded staging. Price differences of two and three times are then attributed to the contractors rather than to the document.

A biddable masonry scope states:

1. Which buildings and which elevations, individually
2. Quantities — square footage of repointing, count of units to be replaced, linear feet of coping and sealant, number of lintels
3. The staging method assumed, and who obtains permits or access
4. Mortar and unit match requirements, including whether a sample panel is required and who approves it
5. How hidden conditions are priced — unit rates carried in the bid, so discovered work has a number before it is discovered
6. Explicit exclusions
7. The schedule window, including any hard end date
8. Cleaning method restrictions — because a scope that does not prohibit abrasive cleaning may get it

Item 5 is the single highest-value line in a public masonry bid. Masonry is the trade where opening a wall reliably reveals more than the survey could see. Carrying unit prices in the bid converts a future dispute into arithmetic.

School and park district work: the calendar is the constraint

Overhead masonry near occupied classrooms, entrances and play areas is a materially different job from the same work on an empty building — controlled access, protected routes, dust and noise during instruction, and a much tighter safety envelope. Most districts sensibly write masonry to the summer window.

Which means the window has to be respected in the scope, not just in the schedule.

• Size the scope to the window, honestly. A scope that only finishes in a perfect summer will not finish.
• Procure early. Matched brick, reclaimed units and cast stone have lead times that do not care about your last day of school.
• Resolve access and staging in the spring, not the week after graduation.
• Agree the hidden-conditions method before mobilization, because a board meeting in July is a long time to stand still.
• Phase across summers deliberately where the campus needs more than one will hold, carrying quantities forward so year two is not re-estimated from scratch.
• Protect what is not being worked on — play surfaces, turf, HVAC, roofing.

Park districts, municipal buildings, libraries and field houses have their own versions of the same problem: seasonal programming, event calendars, and public occupancy that dictate when a wall can be reached.

The masonry itself does not change

Underneath all the procedure, the technical work on a public building is the work we do everywhere.

Diagnosis first. Walk every elevation, sound the masonry rather than eyeballing it, find the water source before writing a scope. On institutional buildings the recurring findings are consistent: receded mortar joints on the weather elevations, spalling brick in the base courses where snow and de-icing salt collect at heavily salted entrances, corroded steel lintels over long window and gym openings rust-jacking a horizontal crack, open coping joints on long low-slope parapets, efflorescence where water is moving through the wall, and step cracks where movement has found the joints.

The repair sequence.

1. Correct the water source — coping, flashing, weeps, drainage, sealant
2. Cut failed joints to depth — roughly two and a half times the joint width — never skim over failed material
3. Clean the joint so the new mortar can bond
4. Match the mortar: soft, lime-rich mixes on genuinely historic stock; Type N for most institutional brick; Type S only where exposure or structure calls for it — always softer than the unit it holds
5. Match color, texture and joint profile against a cured sample, not a wet one
6. Pack in lifts, tool to the original profile
7. Replace failed units matched by size, color, texture and era
8. Cure and protect — damp and shaded in heat, protected in cold

Cleaning, if it is in scope: the gentlest method that works, tested on an inconspicuous area. No sandblasting and no high-pressure washing. Abrasive cleaning permanently strips the weathered skin off limestone and soft brick, leaving a more absorbent surface that deteriorates faster afterward — and on a public building that damage is permanent, visible and attributable.

Why Chicagoland public buildings deteriorate the way they do

Two forces do most of the damage here.

Freeze-thaw. Our winters run through dozens of crossings of 32°F rather than one long freeze, and each crossing expands water held inside saturated masonry. Wet masonry plus repeated freezing is the entire mechanism.

Salt. Public buildings get salted heavily and early, because children, residents and staff use the walks. De-icing salt enters masonry in solution and crystallizes inside the pore structure, which is a mechanical wrecking process. That is why the base courses and entrance surrounds on a school are so often the worst masonry on the campus.

Add a building stock that is largely post-war brick over block, plus older solid-masonry schools and civic buildings with soft brick and lime mortar, and the region produces a very consistent deterioration profile — and a very consistent penalty for deferral.

What drives the cost

Prevailing wage as a labor floor. Bonding cost. Certified payroll and compliance administration. Height, access and staging, often the largest single driver. Overhead protection where work sits above entrances or public walks. The compressed schedule itself, since a fixed summer window prices differently from an open one. Proportion of stone and cast stone to brick. How much steel is in the scope. And what is found once the wall is opened — which is exactly why unit prices belong in the bid.

Maintenance and prevention for public owners

• Commission a condition assessment across the whole campus rather than reacting building by building
• Rank by risk: overhead hazard, then active water entry, then accelerating deterioration, then appearance
• Put masonry in the capital plan with a multi-year phase structure and carried-forward quantities
• Inspect twice a year, spring and fall, photographing the same locations
• Keep sealant on a replacement cycle rather than a complaint cycle
• Manage drainage — roof discharge, grade, and salt storage away from walls
• Document everything, because public owners eventually have to explain the spend

Related services

• Commercial masonry restoration — campus scopes, phasing and unit pricing
• Historic masonry restoration — soft mortars and matched materials on older civic stock
• Parapet wall repair — long low-slope roof edges on schools and field houses
• Lintel repair — long spans over classroom, gym and hall openings
• Tuckpointing and repointing — matched mortar across a campus
• Brick repair and brick replacement — salt-damaged base courses and entrances
• Institutional owners: churches and schools; GCs bidding public work: general contractors; managed portfolios: property managers

Get a scope your board can bid

If your district, park board or village is carrying deferred masonry and needs a document that produces comparable bids instead of an argument, start with an assessment that covers every building and ranks the whole campus by risk.

Emerald Masonry LLC is a family-owned commercial masonry contractor serving Chicago and the Chicagoland suburbs, established 2024 and led by career masons with decades of hands-on Chicagoland experience, in commercial tuckpointing, façade and parapet repair, lintel replacement, chimney and stack rebuilds, CMU block repair, brick repair and replacement, foundation and limestone/sill repair, caulking, sealing, and commercial, residential and historic masonry restoration. Licensed, bonded and insured; COI, W-9 and lien waivers on request. Non-union — and eligible to bid public work on the same terms as anyone else.

Free on-site assessments — call (708) 288-1696 or request one online.