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Replacing Windows in Austin Homes Built Before 1978
A common belief in older Austin neighborhoods is that lead paint only matters if a toddler chews on a window sill. In reality, the bigger exposure usually comes from renovation itself. Scraping, prying and cutting painted wood turns intact old paint into fine dust that settles on floors, sills and furniture, and that dust is what people breathe and track through the house. Window replacement is one of the most dust-heavy jobs an older home can go through, because windows are where paint wears hardest and where layers pile up the thickest.
The year 1978 is the line because that is when lead-based paint was banned for residential use in the United States. A house built before then may still have it under newer coats, even if the visible surface looks fresh. For homeowners in Hyde Park, Travis Heights, Clarksville and other early Austin neighborhoods, that makes lead safe work a normal part of planning a window project rather than a rare special case.
Why Windows Are the Hot Spot
Every time a double hung sash slides up and down, its painted edges rub against the stops and jambs. Over decades that friction grinds paint into a powder that collects in the channels and on the sill. Old window wells, the trough between the inner sash and the storm window, can hold a surprising amount of this residue. Exterior sills catch flaking paint and rain splash, and the soil beneath them often carries lead from years of weathering.
Many homes in Clarksville and Travis Heights date to the early and middle twentieth century, and bungalows in Hyde Park go back even further. In these houses the windows were often painted many times, sometimes with the sashes painted shut. Breaking those paint seals and removing trim are exactly the steps that release dust.
Testing Before the Work Starts
The only way to know whether a particular window has lead paint is to test it. Contractors doing renovation work on pre-1978 homes generally either assume lead is present and work accordingly, or test the specific surfaces they will disturb. Testing can be done with recognized test kits on site or by a certified inspector or risk assessor who uses more precise methods.
If testing shows no lead on the components being disturbed, the special practices may not be required for that job. If lead is found, or if no one tests, the safe assumption is that it is there. Asking a contractor which approach they plan to take is a reasonable first question, and the answer tells you a lot about how seriously they treat the work.
Certification in General Terms
Federal lead safe rules require firms that disturb painted surfaces in pre-1978 homes, for pay, to be certified and to have a certified renovator directing the work. They also require the firm to give the household an informational pamphlet about lead hazards before the project starts. Details vary with the size of the job and the type of work, and local building codes in Travis County may add their own requirements around permits.
For a homeowner, the practical step is simple: ask any window company to show its certification before signing, and ask who on the crew holds the renovator credential.
Setting Up Containment
Containment is the physical barrier that keeps dust in the work area and out of the rest of the house. Inside, that usually means:
- Heavy plastic sheeting taped to the floor, extending well beyond the window in every direction.
- Furniture removed from the room, or covered and sealed in plastic if it cannot be moved.
- Doorways covered with plastic, sometimes with a zippered or flapped entry so workers can pass without opening the whole room.
- Heating and air conditioning vents in the work area closed and covered so the system does not spread dust to other rooms.
- Warning signs at the entry to the work area.
Outside, plastic is spread on the ground below each window, far enough out to catch falling debris. Windows and doors near the work may be closed, and on windy days work may pause, because breezes along the Colorado River corridor or over open lots can carry chips well past the sheeting. Gardens directly under windows, especially vegetable beds, deserve protection or should be avoided during the job.
Work Methods That Keep Dust Down
Lead safe practice is as much about what crews avoid as what they do. Certain methods create far more dust or fumes and are generally prohibited or strongly discouraged on lead-painted surfaces: open flame burning, high heat guns above certain temperatures, and power sanding or planing without special dust collection. Instead, workers mist painted surfaces before scraping, score paint lines with a knife before prying trim, and remove components in as few pieces as possible.
Old sashes and frames are wrapped in plastic before they leave the room rather than carried through the house uncovered. Debris is bagged inside the containment and sealed. Workers often wear disposable coveralls and shoe covers and remove them before stepping out of the work area.
Keeping the Original Trim
Many owners of older Austin homes want to keep the original interior casing, stools and aprons, which often carry profiles that are hard to match today. Keeping trim and practicing lead safety can go together, but it takes care.
One approach is to replace only the sashes and the parts of the frame that must change, leaving the casing on the wall. In an insert installation, the new unit fits inside the old frame, so the interior trim can often stay in place with only the stops removed. That limits how much painted wood gets disturbed.
When casing has to come off, the installer scores the paint where the trim meets the wall, gently pries the pieces loose, labels each one so it goes back in the same spot, and wraps them for storage. Later, the trim can be reinstalled and repainted. If the original paint on the trim is lead-based, stabilizing it with a fresh coat after reinstallation helps keep it from chalking or flaking. Any stripping should be left to people trained to do it safely, since stripping lead paint is one of the riskier activities in an old house.
Cleanup Is Where Most of the Protection Happens
The cleanup at the end of a lead safe job is more thorough than a normal sweep. Typical steps include:
- Misting and folding the plastic sheeting inward, dirty side in, and bagging it.
- Vacuuming all surfaces in the work area with a vacuum fitted with a HEPA filter, starting high and working down.
- Wet wiping sills, floors and other surfaces with disposable cloths, changing cloths frequently.
- Repeating the vacuum and wet wipe steps on floors.
- A cleaning verification check, which compares wiped cloths against a reference card or, where required, a dust test.
Living in the House During the Project
Pregnant women and young children should stay out of the work area entirely and, ideally, away from the house during the dustiest phases. Pets should be kept out too, since dust on fur gets carried everywhere. If the household stays home, plan to use rooms that are not being worked on that day, and keep the doors to containment areas shut.
Austin's long, hot summers add a wrinkle. Closing vents in a work area while the rest of the house is being cooled can leave that room uncomfortable for workers and slow the job. Some homeowners in Hyde Park and Travis Heights schedule older-home projects for cooler months partly for this reason, though careful crews can manage containment in any season.
Questions to Ask Before Signing
- Is the firm certified for renovation work in pre-1978 homes, and who is the certified renovator on the crew?
- Will the surfaces be tested, or will the crew assume lead is present?
- How will containment be set up inside and outside, and how far will the sheeting extend?
- Which tools and methods will be used to remove old windows and trim?
- How will cleanup be done and verified at the end of each day and at the end of the job?
- Can the original interior trim be kept, and how will it be stored and reinstalled?
- Where will old windows and debris be disposed of?
Records Worth Keeping
After the project, keep the contract, the certification details, any test results, notes on cleaning verification and the pamphlet you received. If you sell the house later, sellers of pre-1978 homes generally must disclose known lead hazards, and having documentation of how renovation work was handled can make that conversation easier.
Replacing windows in a house that predates 1978 does not have to be alarming. In older Austin neighborhoods it is routine work, and when it is done with sensible containment, careful methods and a real cleanup, the result is a tighter, quieter, better-performing house with the character of the original trim still intact.