Replacing Windows When You Have Blinds or Shutters

You’ve settled on new windows, but one question keeps nagging: what happens to the blinds or shutters you already love? Often they can go back up afterwards. Whether they’ll fit and work well, though, depends on more than the width of the opening. A new frame position, a handle that sticks out a little further, a ventilation control, or a different opening movement can all change the space your coverings have to work in, even when the window looks much the same from outside.

The good news is that a bit of planning before you order makes all the difference. When you’re comparing replacement window options, think about how each one will sit alongside the fittings you want to keep. We don’t supply or fit blinds or shutters ourselves, so this guide explains what to share with us at the survey and what to agree with your blind or shutter supplier.

Start with where the fittings attach

A blind fixed to the wall above the opening is a different job from one fitted inside the recess. Shutters often have their own surrounding frame, while some blinds attach closely to the window itself. Each arrangement uses a different part of the opening, so each may need its own removal and refitting plan.

Before anything is taken down, photograph how each covering is fixed. Get the top of the recess, both sides, and the area around the handle. That gives us and your blind or shutter supplier the same reference point. It isn’t an invitation to dismantle something unfamiliar yourself, so leave the removal to whoever has agreed to do it.

It also helps to be clear about what you actually want to keep. Keeping a shutter assembly exactly as it is sets a different challenge from keeping the fabric but accepting new brackets. Once you separate the must-haves from the nice-to-haves, everyone can suggest realistic options, and nobody discovers on the day that “reuse” meant something different to each of you.

Measure the finished opening

The brick opening, the visible glass, and the clear space inside a shutter frame are three different measurements. New window profiles can change how much frame you see, and making good the plaster around the window can alter the recess your covering sits in.

So the plan needs dimensions for the finished installation. Include how far the new handle projects, how much depth the blind’s headrail takes up, and where any shutter hinges sit. An overall window width can’t tell you whether those parts will meet when something moves.

Photos are great for explaining the problem, but they’re no substitute for a tape measure. A close-up often hides the gap between a handle and a blind. Ask for a drawing or a clear explanation that relates the proposed window to your actual fittings, with the inside and outside views labelled.

Check every movement

Think about three separate actions: opening the window, operating the covering, and reaching the controls. A blind can sit neatly over a closed window and still catch the handle when you lower it. A shutter panel might open fully, but only once you’ve moved a chair out of the way.

With tilt and turn windows, look at the tilted and fully turned positions separately. Having room for one doesn’t prove there’s room for the other. The same goes for any window that needs to stay easy to open as an escape route.

Outward-opening windows need a little thought too. Most casement windows open outwards, so the sash swings away from the room, but the handle is still on your side and can clash with a shutter or blind. Allow space for your hand to grip and turn it comfortably, especially behind a shutter frame. A covering that technically clears a handle can still make everyday use fiddly.

Then try it from where you’d normally stand. Above a sink or desk, how far you have to reach matters as much as where the handle is. Our guide to windows above kitchen worktops covers that reach problem in more detail. Please don’t climb on the worktop or furniture to test it.

Keep ventilation working

Blinds and shutters need to be planned alongside the room’s ventilation. Your new windows need to meet the requirements that apply to the project, and a covering shouldn’t block the ventilation or make its controls hard to reach once it’s back in place.

The government’s Approved Document F guidance is the starting point for ventilation in England. We’ll explain what’s proposed for your home at the survey. A tidy headrail position is never a good reason to leave out ventilation or hide a control where you can’t comfortably use it.

Think about the room at night, too. Your blinds are probably down for privacy just when background ventilation still matters. Mention how you normally use the room, rather than judging everything with the blinds fully raised.

Agree who removes and refits what

Before the window work starts, agree who takes each covering down and who checks whether it can go back up. Blind and shutter work isn’t part of our window installation, so any adjustments, new brackets, or refitting need arranging with your blind or shutter supplier. Getting this agreed in writing means your finished window isn’t left without the privacy you were counting on.

Label each item by room and window, and agree where it’ll be stored safely while the work goes on. Coverings that look alike can have different sizes. Keep any instructions and product details with them, especially if a specialist is coming back after the windows are in.

Anything fixed into the new frame needs the window manufacturer’s approval and a suitable fixing method. Don’t assume the old screw positions can simply be copied. Ask us about the warranty and the proposed fixings before work begins, so keeping a covering doesn’t mean an unagreed change to your new window.

Put safety first when coverings go back

If a blind has cords or chains, its safety devices must still work properly once it’s refitted. The Make it Safe guidance from the British Blind and Shutter Association covers blind cord safety, including keeping looped cords and chains out of reach of young children. Reusing a blind is about more than hanging the fabric back up.

Your blind supplier should check the complete refitted blind, including its operating parts and safety devices. A device that was fixed to the old frame or a patch of plaster may need a new, suitable position. Keep furniture that children could climb away from cords and chains too, rather than treating the fitting height as the only safeguard.

Finally, think about the days without coverings. Any temporary privacy solution shouldn’t damage the new frame, block ventilation, or stop the window opening. Agree an approach and a realistic return visit before installation, particularly for bedrooms and bathrooms you’ll need to use throughout.

Questions before you order

What if my blind supplier has stopped trading?

Gather any labels, receipts, instructions, and photos you have, then ask a blind or shutter specialist whether reuse is possible. It doesn’t mean refitting is out of the question, but parts and specifications may be harder to identify. Avoid counting on an exact result until someone has examined the assembly.

Can I order new shutters before the windows are fitted?

That depends on whether your shutter supplier can work from confirmed finished dimensions. If the recess or plaster might change, measuring after the window work is often more reliable. Talk the sequence through with both suppliers, including lead times and temporary privacy, before you commit.

What about blinds fitted between panes of glass?

These integral blinds are part of the glazing, not a separate room fitting. Their compatibility, replacement options, and controls need confirming for the specific window system. Don’t assume an integral unit from an old window can move into a different new frame.

Will a bay window need separate measurements?

Yes. Each face of the bay and the angles between them matter. A covering that works on a single flat window may not suit the returns or handle positions in a bay, so have the whole arrangement looked at together, including where neighbouring blinds or shutter panels meet as they move.

What if a motorised blind runs off the mains?

Let everyone know how it’s powered before removal is planned. Any electrical disconnection or alteration needs a suitably competent person, such as a qualified electrician, and the cable route needs thinking about alongside the window work. Keep the controller and instructions together so the system can be set up correctly afterwards.

Should I decorate before the coverings go back?

Agree the order of work with everyone involved. Repairs or decorating around the window can be easier while the coverings are down, but surfaces need to be ready for the fixings. A coordinated return visit saves taking everything down again because the plaster or paint wasn’t ready.