Cracked pane, a frame soft as a sponge, and a damp patch under the basement windows after every hard rain.
Nobody heads down those stairs for the view. You go down for the water heater, the bins and the bike nobody rides anymore, and one day you notice daylight coming in around the frame instead of through the glass.
Replacing them is most of what we do below grade, here in the city and out to Millbury, Auburn and Holden: hopper units, awning units, sliding basement windows, block windows for basement openings, and a basement escape window sized so a grown adult can actually climb out. One thing we refuse to do is set a new unit into a sill that's crumbling.
We cut back to solid concrete and rebuild the bearing first, or the frame works loose inside a season and takes concrete with it.
Below, you'll get the install step by step, what the size, the access and the state of that sill do to the price, when a new window isn't the fix at all, and the questions I get asked most. Give me a ring at (508) 406-9528 and we can set a time for me to see the opening.
Basement Window Well
A basement window well is the pit outside the glass, and half the time it's the reason the old unit gave up. Fill it with leaves, mulch and clay and every hard rain parks water against the frame. So when we dig one back out, we go down below the sill, put in six to eight inches of crushed stone so runoff has somewhere to travel, and reset a galvanized or molded liner so the soil quits creeping in.
A clear polycarbonate cover keeps debris out without killing the light. On an escape-sized well, the cover has to lift from the inside and the steps stay clear, no exceptions. Plenty of the calls that come into Worcester Window Replacement start with a well holding two inches of standing water, and I won't drop new vinyl basement windows into that. Depth, access for a wheelbarrow and the shape the liner is in are what change the number.
Window Basement Install
A basement window install is mostly prep, and the prep is where the job is won or lost. I pull the old sash and frame out of the concrete or block opening, chip back the crumbling mortar, then check the opening for square and check the sill pitch before the new unit ever goes near it. Vinyl basement windows get shimmed and fastened through the jambs, never packed in with mortar, so the sash still latches years from now.
Foam goes in light. Overfill it and the frame bows, and a bowed hopper window basement unit will never seal along the top rail. An opening runs about two hours. Poured concrete or block, how tight the access is down there, and how much masonry has to be rebuilt around the opening all move the price.
Hopper Window Basement
Most of what I pull out of a hopper window basement opening is a rusted steel frame with a sash that came off its pins sometime back in the Reagan years. A hopper hinges at the bottom and tilts in at the top, so it vents air without needing clearance outside, and a hard rain runs down the glass instead of onto your laundry pile.
I set vinyl basement windows in these openings with shims at the hinge side and minimal-expansion foam, because a frame squeezed even an eighth out of square gives you a sash that never latches right. Straight swap, two to three hours. Opening size, whether the old frame is steel or a wood buck, and whether the concrete needs cutting are what shift the number. Plan your basement window treatment around the sash swinging inward.
Glass Block Basement Windows
Glass block basement windows are what I put in when the opening is more of a security worry than a light worry. The blocks come as a mortared panel sized to your rough opening. I chip out the rusted steel frame, clean the sill back to sound masonry, bed the panel in mortar, tool the joints and seal the perimeter.
Foam it in without that bed and you get hairline cracks along the bottom course the first season the ground moves, then a damp smell to go with them.
Wavy or frosted block still gives you basement daylight without giving the sidewalk a view of your laundry. Add a vent unit if you want air, or a dryer port where the duct runs.
Opening size, the condition of the surrounding masonry and vents move the cost.
Basement Outside Door
People usually ask me about the basement outside door while I measure the basement windows, since it's the one opening down there that isn't glass. It's also the most abused door on the house. Water runs down those concrete steps, parks at the threshold, and eats a wood jamb from the bottom up. I hang an out-swing insulated slab in a treated frame, set on a sill pan, shimmed off the masonry so nothing wicks moisture out of the block.
If the stairwell drain is packed with leaf mush, we clear it first, or the new door drowns the same way the old one did. And I check the top step for frost heave before I take a single measurement, because a lifted step throws the whole frame out of square. Width, a rotted hatchway cover overhead, and crumbling stairwell walls drive the labor.
Basement Daylight
Basement daylight is mostly arithmetic: how much of that rough opening ends up as glass, and how much of it ends up as frame. The old steel basement windows in the triple-deckers around here had slim frames, but the glass was pebbled, painted over, or fogged to where you couldn't tell noon from six o'clock.
When I pull one, I keep the new frame as narrow as the opening allows and glaze it clear tempered, so you get the yard instead of a gray smudge. A light-colored well liner throws a good amount of that down onto the floor. A well packed with maple leaves and pea stone does the opposite.
Want privacy without losing the light? The basement window treatment worth asking about is a top-down shade or film on the lower half, not frosted glass you can never take back.
Sliding Basement Windows
Sliding basement windows are usually the right answer when your opening is wider than it is tall, which is most of the concrete holes I meet in Worcester triple-deckers. Two sash, one glides sideways, nothing cranking out into a shelf full of paint cans or swinging over the dryer.
What goes wrong is drainage. A slider sits low, and the sill has weep slots that let water back out. Pack that track with grit, leaves and half a bag of gravel and the next hard rain ends up on your floor.
So I clear the slots, bed the unit in sealant, shim it dead level so a sash doesn't creep open on its own, and foam the gap before trimming. Openings cut for old steel frames, or crumbling block edges, add time. Size, access and the state of that concrete are what change the number.
Block Windows For Basement
Block windows for a basement go in as a mortared panel, not a sash. I pull the old frame, chip back to sound masonry, set the panel on a fresh mortar bed, shim it plumb, and tool the joints so water sheds out of them instead of sitting in the corners. Want air? A panel can come with a small vent unit or a dryer port built into it.
Done sloppy, the panel racks, the mortar hairlines at the corners within the year, and now you have a leak inside the wall instead of on the glass.
The trade off is honest: frosted units still pass basement daylight, they need no privacy film or basement window treatment, and nobody is getting through one. Size, panel count, venting and how chewed up the opening has got are what drive the number.
Basement Escape Window
A basement escape window is the one the fire code actually cares about: an opening big enough for your kid to climb out of and a firefighter in full gear to climb into. That means cutting the foundation, not swapping glass. We saw the wall, set a steel lintel so the block above the opening doesn't stair-step crack on you in a year, dig the pit outside, and drain it into stone.
Skip the drain and the pit fills like a bathtub in a March downpour, straight through your new sill.
We pull the current egress spec for your address before the saw ever touches the wall, so the finished opening measures up when the inspector comes.
What changes the number: how deep we have to dig, whether the wall is block or old fieldstone, whether we hit ledge, and whether a machine fits through your gate or it's shovels.
Small Basement Windows
Small basement windows are the ones nobody thinks about until the glass fogs, the sash rusts solid, or a mouse finds the gap. On a Worcester triple-decker the foundation opening is often barely wider than a shoebox is long, and the original steel frame was set into the concrete when the house was built. We cut those out rather than beat them out.
Swinging a sledge at a settled block wall gets you a cracked course and a parging job you didn't ask for.
The new unit goes in square, foamed at the perimeter, and trimmed so the sill throws water outward instead of back onto the joist. If you plan on a basement window treatment later, tell me and I'll leave you a reveal to hang it on.
Size, access and how welded the old frame is to the concrete are what change the price.
Awning Window Basement
An awning window basement unit hinges at the top and pushes out from the bottom, so you can leave it cracked during one of those long gray drizzles and still not have water tracking down the foundation wall.
Clearance is the first thing I look at. The sash swings outward, so if there's a basement window well in front of it, that sash has to travel without scraping the corrugated liner or burying itself in the leaves that pile up down there. I measure that gap before I order a thing. Where the well is too tight, I say so instead of forcing a unit that binds by the second year.
Once the fit checks out, it's straightforward: old frame out, new one leveled and shimmed square, gap foamed, trim back on. Opening size, how the old frame was fastened, and how much digging the well needs are what shift the number.
Basement Window Replacement Inserts
Replacement inserts are for openings where the surrounding masonry is still sound and only the unit itself has given up. I measure the opening in three spots, because a hundred-year-old triple-decker sill is rarely square, and I order to the smallest of the three.
The old steel frame comes out whole rather than getting squeezed around, since leaving it buried in there steals glass area from already small basement windows and you notice it every time you go down for the laundry.
The new unit gets shimmed level, insulated tight at the perimeter, and the sill pitched so water runs back out instead of sitting on the stop and rotting the interior trim.
Inserts come as sliding basement windows too, if you want air movement without a sash swinging into the space.
Number of openings, how cleanly the old frames release, and whether we can work from outside are what push the labor.
What the job involves
Most basement windows around here sit in a steel or wood frame that somebody mortared into a block wall decades ago, and by the time you call, the frame is the problem, not the glass. A window basement install starts with measuring the rough opening in three spots, because these holes are almost never square, especially in the old triple-deckers.
Out comes the tired unit, the mortar edge gets cut back to something solid, then I set the new frame level, shim it, and use a minimal-expansion foam around the perimeter so the frame doesn't bow and jam the sash. Outside gets sealed and pointed, inside gets trimmed. Each opening runs about two hours. Skip the exterior seal and you get water tracking down the inside of the wall by the first wet spring.
Size, the state of that concrete edge, and how tight the access is will move what you pay.
What it costs
What it costs depends less on the window itself than on what's holding it in place. A straight swap into a sound opening is short work. Cutting masonry for a basement escape window is another matter: saw work, a new header, spoil to haul out, and usually a rebuilt well outside. Sliding basement windows and an awning window basement opening price differently again from glass block basement windows, since block gets mortared and grouted instead of screwed and shimmed.
Access moves it too. A tight side yard with a bulkhead in the way eats more hours than a walkout does. Rotted wood bucks mean framing first, before any window basement install happens at all.
Give me a call on (508) 406-9528 with the opening size and how deep it sits, and I can put a figure on it.
Mortar a frame in tight with no shims and it bows just enough that the sash stops latching.
When basement windows are the wrong fix
Sometimes basement windows are the wrong fix. If the frame is solid and you're dealing with a cracked pane, a seized latch or a screen the cat got to, that's window repair and it costs you a fraction of a full swap.
Water is the bigger one. If the corner weeps every time we get a good March soaker, new glass changes nothing. Look up first: gutters emptying two feet from the foundation, or siding that stops short and lets splashback sit on the block. Fix the water, then we talk units.
Rotted framing or a sagging header means the wall gets rebuilt before anything gets set in it. And if you actually want a basement outside door with a bulkhead, that's masonry and steel, not a window basement install.
Picture windows and casement windows belong upstairs. Down here, awning or block.
Why choose us for this
You've got basement windows that don't work anymore, and you'd like to handle it once and then forget about it. Not three visits, and not a number on the phone that grows on the invoice because nobody looked at the framing before quoting it.
So I measure the opening myself, down there, with a light on. If the wood is soft or the block face is crumbling, you hear it at the measure, not after the old sash is out. That's where a quote climbs later: rot nobody checked, an opening that has to be cut bigger, a tight squeeze down a bulkhead stair in a three-decker off Grafton Street.
I won't be the low bid on your street. Small basement windows tempt people into a stock size shimmed with an inch of foam and a fat bead of caulk, and that lets go by the second year. Basement window replacement inserts are fine where the frame is genuinely sound, and a poor bet where it isn't.
The measure is free and puts you under no obligation to hire me. Either way, you'll know what's really holding that window in.
Frequently asked questions
Can you replace basement windows without breaking up the concrete wall?
Usually, yes. The old frame comes out of the existing opening and the new unit sets into the same hole, so a block wall or a poured one stays as it is. Where an old steel frame was cast right into the concrete, we cut it flush and set the new unit inside what's left. Figure about two hours per opening, and you have the space back the same day.
What's the difference between basement window replacement inserts and a full replacement?
An insert keeps the existing frame and fits new sash and glass inside it, which only works when that frame is straight, dry and solid. A full replacement goes back to the masonry. Over a rotted wood buck or a rusted steel frame, an insert covers the problem instead of fixing it.
Is a hopper window basement unit better than an awning?
A hopper tilts in from the top, so water tracking down the wall doesn't ride in over the open sash, and the swing stays inside where nothing outside can block it. An awning window basement opening suits a wall with dry ground below it and gives you air in a light rain.
Contact Worcester Window Replacement now
Contact us about basement window replacement in Worcester and the first thing we do is measure, because these openings are almost never the size the old frame claims to be. Ring me at (508) 406-9528 on a weekday and tell me what you're looking at: a rotted wood frame sitting in a fieldstone foundation, steel casements painted shut since the Carter administration, or four openings you'd rather see filled with glass block and be done thinking about.
The size of the opening, the state of the sill and whether we can get a wheelbarrow down the side of the house all change how the day goes. Most cellars I walk into, I can tell you standing there whether replacement inserts will sit true or the whole frame has to come out first. If it genuinely can't wait, we'll come Saturday.