FOUR40 installs replacement windows, entry doors and patio doors across the GTA — retrofit or full-frame, properly flashed, sealed and insulated, with permits where openings change. Free on-site estimates.
What's included
Every window on the market is made in a factory to a consistent standard. What differs between two quotes is what happens in the 20 mm around it — and that is the part that decides whether the wall stays dry.
This is the work that makes a legal basement bedroom possible.
What it costs
We publish real numbers rather than "it depends" — but only once they're ours to publish. Our written ranges are being finalised; call and we'll give you one over the phone in a minute. What moves the number:
Working with us
We measure, check drainage and grade, and talk through what you actually want. Free, and no pressure to sign anything.
Scope, materials, base depth and price in writing. You'll know exactly what's included before a shovel moves.
Ontario One Call locates booked, materials ordered, start date confirmed. A realistic window, not an optimistic one.
Excavation, base, compaction, install. Site cleaned at the end of each day — you still have to live there.
We walk it together before final payment. Anything on your list gets fixed, then we're back if settling shows up.
Questions
Retrofit leaves the existing frame in place and fits the new window inside it. Faster, cheaper, less disruption, and you lose an inch or two of glass. Full-frame (sometimes called brick-to-brick) takes everything back to the rough opening.
Full-frame is the right call when the existing frame is rotten, when there is no insulation or flashing behind it, or when you want the glass area back. It is also the only way to know what is actually in the wall. If a quote does not say which one it is, that is the first question to ask.
Double glazing with a low-E coating and argon fill is the sensible default for most GTA homes. Triple is worth it on north and west elevations, on rooms that stay cold, and anywhere road noise is the real complaint — it is a better sound barrier than it is an insulator.
Look at the U-factor rather than the marketing. The gap between a cheap double-glazed unit and a good one is bigger than the gap between a good double and an average triple.
Yes. A bedroom in a dwelling unit needs an openable window big enough to escape through, and the Ontario Building Code sets both a minimum area and a minimum dimension in any direction. Most original basement windows do not come close.
Enlarging one means cutting the foundation wall, a structural lintel, and usually a window well with proper drainage — a real job, and the one that most often decides whether a basement can legally have a bedroom in it at all. We confirm the current requirement with the municipality before quoting rather than working from memory.
Not for a like-for-like replacement in an existing opening. Yes for making an opening bigger, cutting a new one, or anything involving a lintel or the foundation wall. Enlarging a basement window is a permit job, every time.
Water management, not the window. The unit is manufactured; the flashing, sill pan, sealing and insulation around it are done on site by whoever showed up. Foam stuffed into the gap with no air seal and no flashing looks finished from inside and lets water into the wall for years.
Service area
Close enough to come back if something needs attention — which matters more than it sounds.
Elsewhere in the GTA? Call and ask — we travel for the right project.
Related
Free estimate
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