A Chicago greystone is not hard to clean so much as particular. The radiators, the original floors and the salted front steps each ask for something a generic checklist skips. This guide covers three things that set a Chicago vintage home apart, quotes the source for each, and says which job is not house cleaning at all.
We are a cleaning marketplace, not a preservation architect or a contractor, and this is a reading of public pages, not professional advice. We read every page below on October 18, 2026. The cleaning methods are other people's and are credited where they appear. The Chicago facts come from a Chicago Bar Association summary of the city's heat ordinance and from the City of Chicago's Greystone design guidelines. Hometress does not take bookings in Chicago yet; the last section says where that stands.
The short answer
- Chicago's heat season runs September 15 to June 1, according to a Chicago Bar Association summary of the Municipal Code, and one radiator guide we read says to deep clean them in summer, "when they are definitely off." (Chicago Bar Association; Everyday Old House)
- Winter salt is a floor problem, not just a doormat problem: "Salt especially tends to leave a white, abrasive residue that can scratch up your hardwood surface." (National Wood Flooring Association)
- Exterior stone is not a house-cleaning job. The Greystone design guidelines say "Don't use abrasive methods, such as sandblasting, soda or grit blasting, or high pressure water washing, to clean masonry." (Historic Chicago Greystone Initiative guidelines, 2009)
Radiators and the heating season
Chicago's heat ordinance sits in Municipal Code § 14X-8-802. The Chicago Bar Association's summary says residential units must have "adequate heating between September 15 and June 1 of next year," and that a unit with a radiator "must maintain a minimum temperature of 68°F between 8:30 a.m. and 10:30 p.m." with "66°F between 10:30 p.m. and 8:30 a.m." overnight. (Chicago Bar Association, authored by Humza Ansari, dated 2026-09-08 in its address) We quote that summary rather than the code itself, because the city's own pages would not load for our tools.
That is roughly eight and a half months of the year. It leaves June 1 to September 15 as the stretch when a radiator is most likely to be cold enough to clean properly. That is our reading of the dates, not a rule, and whether your building's radiators are actually off depends on your building.
For the method, Everyday Old House, a restoration blog, has a seven-step guide to cast iron radiators by Jennifer Osterhout (first published August 4, 2019). It says "once a year is all you need to deep clean cast iron radiators." The steps that matter, in the author's words: (Everyday Old House, how to deep clean cast iron radiators)
| Step | What the guide says |
|---|---|
| Protect the floor | "place a towel or sheet on the floor directly underneath and around the radiator" |
| Brush | "Starting from the top and working down, run the radiator brush back and forth through the radiator openings" |
| Catch the dust | "Hold the vacuum underneath so it can catch the falling dust bunnies." |
| Mind the tools | The vacuum's crevice tool reaches deeper, but "the crevice tool could scratch your radiators" |
| Wash | A bucket with "warm water and a few squirts of either dishwashing or general household detergent," then "Dampen a sponge or rag." |
| Dry | "wipe it dry with a soft cloth or old towel," because "Cast iron tends to rust" |
| Avoid | "Avoid using abrasive sponges that will scratch and damage the radiator, or chip paint." |
That is one writer's method, not a standard, and we have not tested it. Hometress's published checklists name vent covers, not radiators: the Standard checklist lists "Dust Accessible Vent Covers (up to 9ft)" in its bathroom and bedroom lines. If you want radiators cleaned, say so when you ask any cleaner, and ask what they do and do not wipe. Our full checklists are on the cleaning checklist page.
Original floors and trim
The City of Chicago's Greystone design guidelines (Historic Chicago Greystone Initiative, 2009, hosted by Landmarks Illinois) tell owners to "retain and restore historic interior decorative features and detailing such as molding and trim, staircases, interior doors and hardware, columns, built-in cabinets/storage, fireplace mantles, steps and railings, and flooring." (Greystone design guidelines, Interiors section) The guidelines are about renovation, so they do not tell you how to clean any of it. They do say which parts of the house are the ones worth keeping, which is a reason to tell a cleaner before the first visit which floors are original, which are worn, and where the finish has gone.
On the Hometress side, the Standard checklist includes "Hardwood / Tile / Vinyl Swept and Mopped" in its bedroom lines and "Floors Swept / Mopped / Vacuumed" for the whole house. Neither line says anything about finish type, so say so if it matters.
Winter salt at the door
The National Wood Flooring Association's winter guide, dated January 4, 2022 on the page, puts it simply: "Pets, children, and other household members can track in mud, snow, water, and salt from the outside." The same page says "Salt especially tends to leave a white, abrasive residue that can scratch up your hardwood surface." (NWFA, avoiding winter weather woes)
Its advice is plain and it is the same advice for a greystone vestibule as for a suburban hall: "Place multiple welcome mats outside and inside your home's entrances," and "If you see a puddle on the floor, soak it up with a towel and don't let it sit." If salt is already on the floor, the page tells you to "make sure to take extra precautions when cleaning so that it doesn't scratch the floor's surface." The page does not say what those precautions are, so we do not either. It also says to "sweep or dust mop your floors frequently and clean up any winter-related messes immediately."
Hard water and the checklist lines that touch it
The U.S. Geological Survey says "The simple definition of water hardness is the amount of dissolved calcium and magnesium in the water," and "When hard water is heated, such as in a home water heater, solid deposits of calcium carbonate can form." (USGS Water Science School, hardness of water) We give no Chicago hardness figure here. The city's own page for it would not load for our tools, and we would rather leave a number out than repeat a water-softener company's.
What our checklists say about mineral buildup is short. The Deep checklist includes "Deeply Scrub & Disinfect Bathtub / Showerhead," and the Dream Home checklist includes "Attempt Removal of Rust, Lime, or Calcium." "Attempt" is the checklist's own word: we do not promise a stain comes out, and an old tub may keep its mark.
What is not a house-cleaning job: the stone
The Greystone design guidelines describe these homes' "luminous limestone facades" and treat cleaning them as a masonry job. The masonry list says "Do clean masonry only when necessary to halt deterioration or remove heavy soiling that is damaging the stone or brick," and "First clean masonry surfaces with low-velocity water." For anything stronger: "it should be performed by qualified professionals." (Greystone design guidelines, masonry Do and Don't lists)
The Don't list adds the line quoted above about abrasive methods, including "high pressure water washing." Hometress's Terms of Service draw the same boundary for a house cleaner: "Our standard services focus on the interior of your home. Exterior cleaning (like outside windows, patios, garages) is not included unless specifically listed in your Booking Confirmation as an added service." For the full list of limits, see what house cleaners will not do.
Questions people ask
When should I clean my radiators?
The guide we read says once a year is enough for a deep clean, and suggests summer, when they are off. Chicago's heat season runs September 15 to June 1 by the Chicago Bar Association's summary, so summer is the likeliest window.
Is road salt really a floor problem?
The National Wood Flooring Association says so for hardwood: salt "tends to leave a white, abrasive residue that can scratch up your hardwood surface." Mats outside and inside the door are its first answer.
Should I pressure-wash my greystone?
The Greystone design guidelines say not to use "high pressure water washing" or other abrasive methods to clean masonry, and say chemical cleaning belongs to qualified professionals. That is a question for a masonry contractor, not a house cleaner.
Does Hometress clean in Chicago?
Not yet. We do not take bookings in Chicago, so there is no Chicago price or cleaner to point you to here. Join the Chicago waitlist to hear when online booking opens.
Where Hometress fits
Hometress is a cleaning marketplace that connects independent cleaning professionals with customers. Online booking is not open in Chicago yet, and the place to say you are interested is the Chicago waitlist. In the meantime, the same questions come up in other older homes: see our guides to cleaning a Philadelphia rowhome and cleaning Seattle's older homes, and our Chicago move-out cleaning checklist if you are leaving one.