Notes from two decades of new construction cleaning in the Bitterroot Valley, Montana.https://kleensweepmt.com/en-ushttps://kleensweepmt.com/blog/blue-tape-and-a-marker-how-we-flag-issues/https://kleensweepmt.com/blog/blue-tape-and-a-marker-how-we-flag-issues/A final clean is the last close look a building gets before the owner walks it. Here is the flag system we have used for twenty years, and why builders ask for it.Tue, 22 Sep 2026 00:00:00 GMTJobsite practiceValerie Hixonhttps://kleensweepmt.com/blog/cleaning-limestone-without-ruining-it/https://kleensweepmt.com/blog/cleaning-limestone-without-ruining-it/Limestone etches on contact with anything acidic, including half the products in a cleaning aisle. How we clean it on a final clean, how we check the seal, and what we tell the homeowner.Tue, 08 Sep 2026 00:00:00 GMTSpecialty materialsValerie Hixonhttps://kleensweepmt.com/blog/copper-sinks-hoods-and-fixtures/https://kleensweepmt.com/blog/copper-sinks-hoods-and-fixtures/Living finishes are meant to change, but not from a fingerprint under a sticker or a scouring pad. How we handle copper, brass, bronze and zinc on a final clean.Tue, 25 Aug 2026 00:00:00 GMTSpecialty materialsValerie Hixonhttps://kleensweepmt.com/blog/construction-dust-is-not-ordinary-dust/https://kleensweepmt.com/blog/construction-dust-is-not-ordinary-dust/Drywall, silica and sawdust behave differently from household dust. Where it hides, why it resettles for weeks, and the order we clean a house to stop it.Tue, 11 Aug 2026 00:00:00 GMTConstruction dustValerie Hixonhttps://kleensweepmt.com/blog/rough-final-touch-up-three-phase-construction-clean/https://kleensweepmt.com/blog/rough-final-touch-up-three-phase-construction-clean/One clean at the end is the most common scheduling mistake we see. How three shorter visits protect finishes, keep the trades moving and make the walkthrough easier.Tue, 28 Jul 2026 00:00:00 GMTFor buildersValerie Hixonhttps://kleensweepmt.com/blog/window-cleaning-after-construction/https://kleensweepmt.com/blog/window-cleaning-after-construction/Why a razor blade on new glass is a gamble, how we remove manufacturer labels and stucco splatter, and the scratch we check for under every sticker.Tue, 14 Jul 2026 00:00:00 GMTFor homeownersValerie Hixonhttps://kleensweepmt.com/blog/grout-haze-mortar-smears-paint-flecks/https://kleensweepmt.com/blog/grout-haze-mortar-smears-paint-flecks/Each residue needs a different approach and a different wait time. What we can take off safely, and what we flag for the tile setter or painter instead.Tue, 30 Jun 2026 00:00:00 GMTConstruction dustValerie Hixonhttps://kleensweepmt.com/blog/move-in-ready-final-walkthrough-checklist/https://kleensweepmt.com/blog/move-in-ready-final-walkthrough-checklist/The checklist we walk with the builder before keys change hands, from appliance film to the inside of the dishwasher filter.Tue, 16 Jun 2026 00:00:00 GMTFor homeownersValerie Hixonhttps://kleensweepmt.com/blog/cleaning-a-new-laboratory-building-nih-rocky-mountain-labs/https://kleensweepmt.com/blog/cleaning-a-new-laboratory-building-nih-rocky-mountain-labs/A federal high-containment research facility is not an office building. Access, documentation, lint-free finishes, and how a cleaning crew fits into a GC's commissioning schedule.Tue, 02 Jun 2026 00:00:00 GMTCommercial & labValerie Hixonhttps://kleensweepmt.com/blog/oiled-wood-limewash-plaster-clean-dry-first/https://kleensweepmt.com/blog/oiled-wood-limewash-plaster-clean-dry-first/Water is the wrong first tool for some of the most expensive finishes in a custom home. How we read a finish schedule and clean in the right order.Tue, 19 May 2026 00:00:00 GMTSpecialty materialsValerie Hixon