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Chicago Buildings · The Systems

The Seasonal Checklist for a Chicago Home

Chicago is hard on buildings in a very predictable way: freeze, thaw, bake, repeat. This is the whole year of care on one page, season by season, with links to the deep guide for anything you want to understand properly. Ten minutes in the right month beats a contractor bill in the wrong one.

Jump to a season

Spring · Summer · Fall · Winter · The all-year rhythm · What skipping costs

Renting instead? Your version of this page is the Renter’s Seasonal Calendar.

Spring: March, April, May

The freeze-thaw season just spent five months prying at every joint in your building. Spring is when you find out what it accomplished, while the fixes are still small.

  1. Walk your walls

    One slow lap around the building: white staining, crumbly mortar joints, brick faces that popped over winter, cracks that grew. Most of it is cosmetic; a little of it is not, and the difference is worth knowing early. Our brick guide shows you exactly what matters.

  2. Book tuckpointing while masons are booking

    Mortar work wants sustained mild weather, so the season runs roughly April into October and the good crews fill their calendars in spring. If the winter left work to do, get on a list now rather than in August.

  3. Gutters, downspouts, and where the water goes

    Clear what winter left, then follow every downspout: water should land well away from the foundation, not beside it. During a hard rain, walk the perimeter and note any puddle that hugs the wall. The fixes are usually cheap grading and extensions; the alternative is a wet basement. More in the yards guide and the foundations guide.

  4. Test the sump before the big melts and rains

    Lift the float; the pump should kick on immediately. If it has a battery backup, test that too, because pumps are needed precisely when storms knock power out.

  5. Wake the air conditioning before the first hot week

    Clear leaves and cottonwood fluff off the condenser, rinse the coil gently, and run the system once on a mild day. If it needs service, May pricing and May scheduling beat July on both counts. The HVAC guide explains what the tune-up covers.

  6. Give the porch its once-over

    Before the season of grills and gatherings: wobbly railings, soft boards, rusted connectors. Chicago takes porch structure seriously and so should we. The porch guide has the full checklist.

Summer: June, July, August

The easy season, which is exactly why the working items are the ones people forget.

  1. Trim what hangs over the roof

    Branches over the roof line drop debris into gutters all fall and become ice-loaded levers all winter. Summer is the time to cut them back, especially the alley trees nobody claims.

  2. Caulk and paint in the dry stretches

    Exterior caulk and paint want warm, dry days to cure. Window perimeters, door frames, and anywhere two materials meet. The window guide covers when a window needs sealing versus replacing.

  3. Clean the dryer vent

    Once a year, the whole run, not just the lint trap. It is a fifteen minute job that removes a genuine fire risk and makes the dryer faster at the same time.

  4. Flush the water heater

    A bucket of sediment out of the tank once a year buys quieter operation and a longer life. While you are down there, look at the shutoffs and know which valve does what; the plumbing guide maps it all.

  5. Think about winter while it is warm

    Ice dams in February are made in the attic in August: insulation and ventilation are summer projects with winter payoffs. The roof guide explains the mechanism; anyone quoting you for attic work has more room in their schedule now.

Fall: September, October, November

The season that decides how winter goes. Everything here is cheaper and calmer in October than in January.

  1. September: book the furnace or boiler tune-up

    Before the first cold week fills every heating company’s calendar. An annual service catches small problems while they are small, and a fresh filter every one to three months through the season keeps the system honest. Radiator homes: bleed each radiator (cold at the top means trapped air), check the boiler pressure, and run one full warm-up before you need it. The HVAC guide covers every system type.

  2. October: drains and the ground

    On older blocks with mature trees, fall sewer rodding beats a February backup by every measure. Test the sump again, clean the gutters once the leaves are mostly down, and disconnect hoses and shut exterior spigot lines before the first hard freeze. The plumbing guide explains the why behind each.

  3. October: find the drafts before January does

    A candle walk on a windy day finds the leaks while weatherstripping is still a weekend job. Check the windows guide before deciding anything needs replacement; most drafts are trim and seals, not glass.

  4. Give the roof its pre-winter look

    From the ground or the alley: shingle condition, flashing at chimneys, and on flat roofs the state of the surface and the silver coating. Small membrane repairs in October are routine; the same spot in February is an emergency. The roof guide shows what to look for.

  5. When the clocks change: batteries and the chimney

    Fresh batteries in every smoke and carbon monoxide detector, and if you burn wood, a sweep and inspection before the first fire of the year.

  6. Set up the humidifier

    Chicago winter air is desert-dry indoors. A humidity target in the 30 to 45 percent range keeps wood floors from gapping, trim from cracking, and everyone breathing easier. The flooring guide explains what dry winters do to wood.

Winter: December, January, February

Mostly, winter is watching: the work was the fall. But a Chicago winter has a few live drills.

  1. The deep-freeze protocol

    On the coldest nights: open cabinet doors under sinks on outside walls so warm air reaches the pipes, let the farthest faucet run a pencil-thin trickle, and know where the main shutoff is before you need it in a hurry. Leaving town? Heat stays on, and someone checks the place.

  2. Read the icicles

    Big icicles at the roof edge mean escaping heat is melting snow that refreezes at the gutter, which is an insulation story more than a roof story. Watch ceilings during thaws; a stain is a message worth answering quickly. The mechanism, in the roof guide.

  3. Keep the fresh filter rhythm

    The furnace works hardest now, and a clogged filter makes it work harder still. Set a monthly phone reminder through the heating season.

  4. Plan spring while contractors are quiet

    January and February are when good contractors answer the phone and quote sharp. Whatever spring project you are circling, this is the cheap month to plan it.

The all-year rhythm

A few things do not belong to a season. Furnace filters every one to three months whenever the system is running hard, either direction. A quick exterior walk after any major storm, because the best time to find wind damage is before the water finds it. And one folder, paper or digital, where every service receipt lands: furnace tune-ups, roof work, rodding, tuckpointing. That folder is quiet money. When you eventually sell, a documented maintenance history reads as a cared-for home, and inspectors write calmer reports about it. The seller’s guide explains how much that calm is worth.

What skipping costs

The pattern behind every item on this page

Almost nothing here is expensive. Mortar touch-ups cost a fraction of rebuilt walls. A furnace filter costs a fraction of a blower motor. Fall rodding costs a fraction of a flooded basement. Gutter cleaning costs a fraction of a stained ceiling and the insulation work behind it.

The building does not care whether you do these things. It just quietly prices your answer, about a year later. This page exists so the price stays small.

Want a second opinion on anything you find, or a referral to people who show up? Our clients text us photos of mystery cracks all year long. It is part of the service, and we like the puzzles: reach the team here.

Want these nudges at the right moment?

Our clients get the seasonal reminders by email as each window opens, the tune-up week, the rodding month, the deep-freeze nights, without having to remember any of it.

Talk to the team
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