Chicago Two-Flat Exterior Repair Budget: Where the Money Goes

A Chicago two-flat exterior repair budget is built from five line items: the brick and mortar, the roof and parapet, the back porches and stairs, the concrete at ground level, and the water-management pieces that protect all of it. We are not going to hand you a rule-of-thumb number, because the number depends on what is actually wrong with your walls. What we can do is show you where the money goes, what moves each line, and how to rank the work so you spend on water and safety first.

What belongs in an exterior repair budget?

Think of the outside of a two-flat as a system whose job is to keep water out and keep people safe. The City's maintenance standard says the same thing in code language: the exterior of a structure must be maintained in good repair, structurally sound and sanitary, and masonry joints must be weather resistant and water tight. Loose cornices and trim, and porches or stairs that are not sound or properly anchored, are on the list too (Title 14X).

That gives you five buckets:

If your building has all five problems at once, that is normal for an older Chicago two-flat. It does not mean the building is a bad buy. It means the work needs an order.

Why masonry and roof usually lead the list

Water is the thing that costs you money. Open mortar joints let it into the wall, saturated brick freezes, and the face of the brick starts to spall. The same goes at the roofline: brick caps and parapet joints are the most exposed spot on the building. The Brick Industry Association notes that caps with many mortar joints can be a poor choice next to concrete, stone or metal, because the cap's job is to shed water away from the wall (BIA guidance).

So the masonry line is often the biggest, and it is also the one where cheap fixes cost the most later. Repointing mortar that is harder than the brick can push moisture out through the brick instead and damage the face (softer, more permeable mortar). That is a reason to pay a mason who knows old Chicago common brick, not the lowest bid.

For deeper reading on how this plays out, see our two-flat exterior inspection checklist for buyers, which works just as well for an owner trying to build a reserve.

What changes the number on every line?

The same repair can cost very different amounts on two buildings that look alike. These are the drivers we see move a budget:

• Access. Anything above the first floor needs scaffolding or a lift. Scaffolding, dumpsters and material storage that use the street, alley or sidewalk need a separate permit from CDOT (City of Chicago). Access is a real line, not a footnote.
• Extent. The first look rarely shows all of it. Loose brick behind the cornice, a soft joist behind the porch rail, wet insulation under the roof: these appear when work starts. Budget a contingency line for them rather than treating them as a surprise.
• Permits and licenses. Chicago requires a building permit before most repair work, with a limited list of exemptions (City of Chicago). Masonry permits require a licensed mason contractor (City of Chicago), and tuckpointing is listed on the City's Express Permit masonry page (City of Chicago). Reroofing has its own rules: roof repair limited to 25 percent of the roof area is a permit-free patch only if no part of an exterior wall or roof is cut away (City of Chicago), and Express reroofing is closed to anyone without a valid Illinois roofing license (City of Chicago). Confirm current permit rules with the Department of Buildings, because they change.
• Porch scope. Painting and power washing need no permit, but repairing or replacing structural elements such as columns, beams and joists always does, with plans from an Illinois architect or structural engineer (Department of Buildings). A repair that turns into a rebuild moves the porch line a lot.
• Lead-safe work. If the building was built before 1978 and anyone is paid to disturb painted surfaces, EPA's lead rule applies, and it reaches landlords' rental units (US EPA). The extra containment and certification are cost drivers on trim, windows and porches.
• Tenants. Work around occupied units takes more phasing and protection. Our post on repairs in an occupied building covers planning around tenants.
• Season. Exterior masonry and concrete have weather limits, and good contractors book up. See fall repairs to finish before the freeze.

How to rank the work when you cannot do it all

Rank by consequence, not by looks.

1. Anything a person can fall through or off. Porches, stairs, guards and handrails. The City requires them to be structurally sound and properly anchored (Title 14X).
2. Anything letting water in. Roof flashing, parapet joints, open mortar, failing downspouts.
3. Anything that gets worse faster each winter. Spalling brick and failing mortar accelerate because water that gets in freezes.
4. Cosmetic and everything else. Last, and only when the first three are handled.

Staging works. Many owners do the safety and water items in year one and spread the rest across later seasons, elevation by elevation. That only works if you have a written scope for each stage so you are not re-bidding the whole building every time.

What does an unbudgeted repair cost you?

A line item you skip does not disappear. It changes shape.

None of that is a prediction for your building. It is why a modest reserve beats a big surprise.

How to set a reserve without a dollar figure from us

You do not need a blog post to tell you a number. You need three inputs:

1. A written inspection, elevation by elevation. Front, rear, both sides, roof, porches. Photograph everything.
2. Itemized quotes, not one lump sum. Ask each contractor to price masonry, roof, porch and concrete as separate lines, so you can compare and stage them. Our guide to comparing contractor estimates shows how.
3. An annual check. Our landlord exterior maintenance checklist gives you a yearly walk-around that keeps small items from becoming big ones.

Then set aside money against the highest-ranked items first. If you are buying and trying to price a building before closing, start with what to check outside a two-flat first.

Get the whole exterior priced once

Akats handles masonry, roofing, porches and concrete in-house, so one site visit can price the whole exterior as separate, staged lines. Start with our building violations and repairs page, or read the landlord and buyer guide for the bigger picture. Call 312-339-9627 or use the estimate form on this page.

Common questions

This article explains general rules and common situations in Chicago. It is not legal advice, and City rules change. For a specific property, check with the Chicago Department of Buildings or a licensed professional.