Most of what turns up for this search is about taking the glass out of a frame. That is a different job, covered in our blown double glazing guide. This page is the whole window: frame, sill and all, out of the wall, ready for a new one. It is less skilled than fitting the replacement and more likely to go wrong in a way that costs money, because the damage a careless removal does to the plaster, the render and the lintel is what the fitter then has to put right.
Before you start: three checks
- The new window is on site and it fits. Removal usually wrecks the old frame, so there is no putting it back. Measure the structural opening in three places each way and use the smallest; our fitting guide gives the size deductions. Never measure the old frame and order to that.
- There is a lintel. Look above the opening, outside and in. FENSA's compliance guide says most replacement window frames cannot carry any load, that a course of bricks on edge over the opening is not a means of support, and that an installer cannot skip fitting a lintel because the old window managed without. If you cannot see one, or the window is a bay, this is not a DIY removal.
- What is in the wall. Cables and pipes run beside reveals more often than you would think, and windows from before 2000 can carry asbestos in old putty, infill panels, cement sills or the textured coating round the reveal. It cannot be identified by eye. If you suspect it, test before you cut, sand or drill anything.
Tools and protection
A reciprocating saw with metal and wood blades, or a hacksaw and a padsaw if you have the patience. A flat pry bar and a wide bolster. A stiff putty knife for the glazing beads. Dust sheets both sides, and a second person for anything above the ground floor. Safety glasses, cut-resistant gloves and sleeves, and a dust mask: old sealed units break, and old frames shed grit and paint.
Step 1: take the glass and sashes out
Never move a glazed frame. Opening sashes usually come off their hinges with a screwdriver. Fixed panes come out by removing the internal glazing beads: slide the putty knife into the joint between bead and frame, starting mid-way along a long edge, lever gently until it unclips, work along, and do the short beads next. Leave the top bead until last, because it is the one holding the glass. Lift the sealed unit out from the bottom, keeping it upright, with your helper taking the weight, and stand it somewhere it cannot fall. On a timber window with putty, score round the putty, chip it out with a chisel, pull the sprigs and lift the pane; if the pane is already cracked, tape it in a criss-cross first so it comes out in one piece.
Step 2: find every fixing
This is where removals stall. Frame fixings are screws through the jambs into the masonry, hidden under trims, plastic caps or the opener you have just removed. Unscrew every one you can reach. Older frames were often fixed with metal lugs or straps screwed to the wall behind the plaster, or with nails driven straight into the brick; those cannot be undone, only cut. Straps were typically fitted every 30 cm, so if you find one, expect more. A fitter's rule is that a frame which will not move has a fixing you have not found yet.
Step 3: break the seal, both sides
Run a utility knife around the whole perimeter where the frame meets the plaster inside and the render or brick outside, through paint, sealant and silicone. Do the outside too; the external silicone bead is often the last thing holding a uPVC frame. If the frame was set in expanding foam, an old hacksaw blade run round the gap cuts it.
Step 4: collapse the frame
Slide the reciprocating saw's metal blade into the gap between frame and masonry and cut through whatever is bridging it: the lugs, nails or screws you could not remove. Then make one vertical cut through a transom or mullion, or through the sill on a single-light frame, keeping the blade clear of the wall. That lets the frame fold inward instead of coming out as a rigid rectangle wedged in the opening. On a large frame, cut it into sections you can carry.
Step 5: lever it out
From the inside, put the pry bar between frame and wall at a fixing point, with a scrap of timber behind it so the bar bears on wood rather than plaster. Lever gently and move round the frame, a little at each point, rather than forcing one corner: forcing a corner is what cracks the render outside and the plaster inside, and both go on the fitter's bill. The sill usually comes last and may be bedded in mortar; cut and chisel rather than prise.
Step 6: clean the opening and look up
Remove every old fixing, nail, lug stub and offcut of sealant or foam from the reveal, knock back loose mortar and plaster, and brush it out. Then check the two things that decide whether the new window goes in today: the lintel above, and the sill or brickwork below. Rotten timber, a cracked stone sill or a lintel that has failed have to be dealt with before a new frame goes in, and a new lintel is £300 to £1,000 an opening. If the replacement is not going straight in, board the opening; do not leave it open overnight for weather or security.
Nine removals in ten go wrong at the same point: a fixing nobody found, and a pry bar used to make up for it. The frame comes out, and so does a fist of plaster and a run of render. Take the glass out, take the time to find the fixings, and the frame comes out with a hand.
Double Glazing Cost Calculator Team
What removal costs when a fitter does it
Almost nothing as a line: the 2026 trade guides price removing an old window at £25 to £30 per window, with disposal of the material around £150 a tonne, and most fitted-window quotes include both. The full swap, old window out and new one in, takes one to two hours for a standard opening, and a fitter does two to four in a day. What removal can uncover is the expensive part.
| Item | Cost (2026) | Notes |
|---|---|---|
| Remove old window | £25 to £30 per window | Included in most fitted quotes |
| Disposal of frames and glass | around £150 per tonne | Skip or the fitter's waste charge |
| Fit the replacement uPVC frame, labour only | £80 to £150 per window | Supply-only customers; see the fitting guide |
| Cut out and fit a lintel | £300 to £1,000 per opening | Only if the opening has no adequate support |
| Scaffold or tower for upper floors | £40 to £150 per day | Where ladders are not safe for glass |
Source: Checkatrade window fitting cost guide (July 2026); MyBuilder (2026). Full research in lib/research/window-removal-fitting-2026.md.
The old frames and glass do not go in the household bin. uPVC is recycled, glass is recyclable once separated from the frame, and most household recycling centres take both; where the material actually ends up, and what a fitter charges to take it, is in our window removal and disposal guide.
Should you be doing this at all?
Removing a ground-floor window with a helper is within reach of a careful DIYer. The reasons to hand it over are structural rather than skill: no visible lintel, a bay (which needs propping during removal and fitting), a window that is a fire escape route, or anything above the ground floor where you would be handling a sealed unit on a ladder. There is also the paperwork. A full replacement is notifiable under the Building Regulations, so if you remove and refit yourself, the certificate is your responsibility through Building Control rather than the fitter's through FENSA. Our should you fit your own windows tool weighs the saving against that, and supply-only vs fully fitted sets out what the fitted price actually buys.
Getting the new windows in
Removal is the cheap half of the job and the part most people can do. The fitting is where the window's performance is made or lost, and the certificate has to come from somewhere. If you would rather have the whole thing done, tell us what you have and Leads 2 Trade will arrange quotes from FENSA-registered installers covering your postcode; removal and disposal are included in a fitted price.
Frequently asked questions
Take the glass and opening sashes out first, so you are moving an empty frame. Find and remove every fixing in the jambs, usually under trims or caps, and cut any lugs or straps you cannot unscrew. Run a knife around the whole perimeter inside and out to break the sealant. Cut through a transom or mullion with a reciprocating saw so the frame collapses inward, then lever it out from the inside, working evenly around rather than forcing one corner. Clean the reveal back to sound masonry and check the lintel.
Removal and refitting together take one to two hours for a standard window, and a fitter will do two to four windows in a day. Removal alone is the quicker half; the time goes into finding hidden fixings on older frames and into a timber window that has been painted into its opening.
Very little as a line item: the 2026 trade guides put removal at £25 to £30 per window, with disposal at around £150 per tonne, and most fitted-window quotes include both. Removal only becomes expensive when the opening turns out to need a lintel, which is £300 to £1,000 per opening.
On the ground floor, with a helper and the glass out first, yes; the frame itself is light once it is empty. What makes it a professional job is what is above it: if there is no lintel, or you are not sure, or the window is a bay, structural or a fire escape route, get it assessed before you start, because a replacement uPVC frame will not carry the wall.
You need one to be there. FENSA's compliance guide is explicit that most replacement windows cannot carry load, that a soldier course of bricks over the opening is not a suitable means of support, and that an installer cannot avoid fitting one on the grounds that the old window had none. Bays need temporary props during both removal and installation.
Possibly, in windows from before 2000: some older putties, glazing compounds and infill panels contain it, along with asbestos cement sills and the textured coatings around a reveal, and it cannot be identified by look or feel. The risk comes from sanding, grinding, drilling or chiselling. If you suspect it, stop and have it tested before you disturb it.
Not the household bin. uPVC frames are recyclable, and most household recycling centres take frames and glass separately; a skip or the fitter's disposal charge covers the rest. Our disposal guide explains where the material actually goes.