Old houses were built by people who had never heard of a drywall screw
Working on a genuinely old house means working with assemblies and materials that behave nothing like current construction. The walls are not drywall. The trim is not a stock profile. The systems were added over decades by different people with different ideas. None of that is a defect, and treating it like one is how a beautiful house gets ruined by a renovation.
Decatur and the older neighborhoods inside the perimeter have some of the oldest housing stock in the metro, a lot of it genuine pre-war bungalows and two-story houses. Around the Roswell square, near downtown Norcross and Lawrenceville, and in the older parts of Marietta, you find the same conditions. These houses reward careful work and punish fast work in ways that newer construction does not.
Plaster is not drywall and does not want to be treated like it
Plaster on wood lath is a three-coat system pushed through gaps in thin wood strips, where it oozes through and forms keys that lock it in place. Those keys are the whole thing. When plaster fails, it is usually because the keys have broken, not because the surface is damaged, which is why a wall can look fine and sound hollow.
You can tell by tapping. Solid plaster gives a firm sound. Plaster that has lost its keys sounds and feels loose, sometimes with visible bulge. Loose plaster can often be reattached with washers and screws that pull it back against the lath rather than being demolished, which preserves the original surface and costs less than replacement.
Plaster is also harder, flatter and more sound-deadening than drywall, and it takes paint differently. Homeowners who have lived with it usually notice immediately when a room gets patched with drywall, because the texture and the light reflection are not the same.
Cutting into it is where the damage happens. Plaster is brittle and it does not cut cleanly with the tools that work on drywall. Score it first, cut slowly, support the section you are removing, and expect the vibration to loosen keys well beyond the cut line. Rushing this is why a small electrical repair becomes a whole wall.
Where a section genuinely has to be replaced, the patch has to build back to the same thickness as the surrounding plaster, which is more than a sheet of drywall. Blue board and a veneer plaster coat gets you there and takes paint like the original.
Trim you cannot buy
Older houses have milled profiles that stopped being produced a very long time ago. Casing with a specific bead and reveal, baseboard with a cap that steps a particular way, crown that is deeper than anything a lumberyard stocks.
Put a modern stock profile next to an original one and the eye picks up the difference immediately, even in people who could not describe what changed. Proportion and shadow line are what make a room feel period-correct, and a close-enough substitute reads as wrong from the doorway.
The answer is matching. Sometimes you can build up a match from stock pieces, combining a base and a cap to reproduce the original section. When that will not do it, a knife gets ground to the profile and the run gets milled. This is not as expensive as most people assume, and it is the difference between a repair that disappears and one you notice forever.
Removal is its own skill. Old trim was installed with cut nails into plaster and lath, has been painted many times, and comes off badly if you pull it fast. Score the paint line first, work it loose gradually, and pull the nails through from the back rather than levering the face. Salvaged original trim is worth more than anything you can buy. Our trim replacement work on older houses starts with documenting the existing profile before anything comes off the wall.
Systems added in layers by people who never met
A hundred-year-old house has had its electrical, plumbing and heating updated repeatedly, each time by someone working around what was already there, and each time to the standards and habits of that decade.
Electrically that means knob and tube in some walls, cloth-insulated cable from a mid-century update in others, and modern cable where somebody has been recently. The problem is rarely any single vintage. It is the junctions between them: splices made without boxes, circuits extended past what they were sized for, and old junctions buried behind later finishes where nobody can inspect them.
Plumbing follows the same pattern. Galvanized supply that was partly replaced with copper, with a corroding transition fitting at the joint. Cast iron drains that are usually fine but occasionally scaled almost closed. Vents that were never relocated when a fixture moved.
The heating archaeology is often the strangest. Gravity furnace ductwork the size of a small room in the basement, later systems threaded through it, radiator pipes capped in place, and a bathroom exhaust fan somebody vented into the attic instead of outside.
Our approach is to correct what we can reach while we are in there and document clearly what we cannot. A whole-house systems replacement is a legitimate project and sometimes the right one, but it is a different scope than a kitchen, and it should be a decision rather than something that happens by accident because one thing led to another.
Balloon framing changes what a wall is
Many houses from this era are balloon framed, meaning the studs run continuously from the sill to the roof rather than stopping at each floor. There is no plate between floors, so the wall cavities are open channels from the basement to the attic.
This matters in two ways. It is a fire path, which is why fire blocking gets added whenever we have a balloon-framed wall open. And it means anything you drop into a wall cavity can travel a long way, which is occasionally convenient and occasionally how a wire ends up somewhere unexpected.
It also means floor framing is often let into the studs rather than sitting on a plate, so cutting a stud has different consequences than in modern platform framing. Worth knowing before anyone starts opening walls to move a doorway.
Square is a suggestion
Nothing in an old house is square, level or plumb, and this is not damage. These houses were built by hand, they have settled for a century, and the wood has moved with a hundred seasons of humidity.
The practical consequence is that anything factory-made is going to fight the space. A cabinet run is straight and your wall is not. A door slab is rectangular and your opening is not. This is why scribing matters so much in old-house work: fitting the new piece to the actual shape of what is there rather than to what it should theoretically be.
The judgment call is when to correct and when to accept. A floor that slopes gently across a room is character, and leveling it means jacking and structural work that ripples into every wall and door in the vicinity. A floor that slopes because a joist has failed is a repair. Knowing which one you have is the job.
We generally recommend correcting what is actively failing and working with the rest. Houses that have been forcibly straightened often lose the thing that made them worth buying, and the work required is out of proportion to the benefit. On our full home remodel projects in older stock, deciding what to leave alone is as much of the conversation as deciding what to change.
Windows are the argument that comes up every time
Original wood windows in an old house are usually made from old-growth lumber that is denser and more rot-resistant than anything milled today, and they were designed to be repaired. Sash cords, glazing putty, hardware and individual panes are all replaceable, which is why plenty of these windows are still operating after ninety years.
Replacement windows are sold on efficiency, and the efficiency argument is weaker than the marketing suggests once you account for the fact that most heat loss in these houses is through air leakage at the perimeter and through uninsulated walls, not through the glass itself. A restored original window with a good storm on the outside performs respectably and keeps the proportions and the wavy glass that make the elevation look right.
Where replacement makes sense is when the frame or sill has actually gone soft, when a previous owner already replaced them with something poor, or on an elevation nobody sees. And when a window does get replaced, doing a full-frame replacement rather than an insert lets us see and correct the framing underneath, which on an old house is frequently where the interesting news is. Our window repair work on these houses is often hardware and glazing rather than units.
Questions about older houses
Should I be worried about lead and asbestos?
They should be handled by people qualified to handle them, and testing before disturbing suspect materials is the right sequence. Paint from before the late seventies and certain older flooring, insulation and pipe wraps are the usual candidates. This is a normal part of working on old houses rather than a reason not to.
Can you open up a floor plan in a house like this?
Usually, with proper structural work. The wall you want gone may be carrying load, especially in balloon framing where load paths are less obvious. That means a properly sized beam, real bearing at each end down to the foundation, and a permit. It is a common project and entirely doable, just not a demolition-only one.
Is it more expensive than working on a newer house?
Generally yes, for two reasons: more discovery, and more of the work is hand-fitting rather than installing. Matching a profile takes longer than buying one. What you get is a house that stays what it is.
How do you decide what to preserve?
We talk about it before anything comes off a wall. Original trim, doors, hardware and plaster in decent condition are generally worth keeping, and salvage from the parts you are changing can supply repairs elsewhere. What people regret is almost never keeping too much.
If you own one of these houses
The best thing you can do is figure out what you love about it before you plan changes, because the pressure during a renovation is always toward the faster, more standard version of everything.
Call (678) 665-7771 or reach us through the contact page and we will set up a walkthrough. We work throughout the older parts of the metro, including Decatur and Avondale Estates, where matching existing detail is a routine part of the job rather than a special request.