Choosing curtains and blinds sounds like a finishing touch, but windows are the biggest surfaces in most rooms after the walls — get them wrong and the whole room looks apologetic; get them right and even plain furniture looks considered. The choice is not really curtains versus blinds. Every room asks a different question — privacy, blackout, insulation, moisture, or pure softness — and the answer is often a layer of both.
This room-by-room guide explains how to choose curtains and blinds properly: what each type does best, the fabrics and lengths that work, how to measure so nothing arrives the wrong size, and the fitting mistakes that make windows look mean and unfinished.
Curtains or Blinds? What Each Does Best
Curtains bring softness, colour, warmth and insulation. They frame a window, absorb sound (a gift in echoey rooms), and their fabric folds make a room feel dressed. They need wall space either side to stack back onto, and they are the weaker choice in steamy or splashy rooms.
Blinds are precise and space-saving. They sit inside or tight to the window, let you angle light and privacy independently (Venetians and verticals), and suit small rooms, bays and bathrooms where fabric would billow or mildew. On their own, though, they can feel office-like in living spaces.
The layered answer — a blind for function inside the recess, curtains for softness outside it — is what most designers choose for living rooms and bedrooms, and it solves privacy, blackout and looks in one move.
Room by Room: What to Choose Where
Living room. Curtains first for warmth and presence — full-length, ideally — with a sheer or voile behind them if the room is overlooked, so you get privacy without losing daylight. A Roman blind layered under curtains is the polished alternative in smaller rooms.
Bedroom. Blackout is the priority: blackout-lined curtains, or a blackout roller blind inside the recess with curtains over the top to seal the edges where light leaks. This combination is also the best draught insulation most bedrooms ever get.
Kitchen. Blinds, almost always. Faux-wood Venetians, rollers in wipeable fabrics, or Roman blinds kept clear of the hob. Fabric curtains near sinks and cookers absorb grease and smells and are hard to clean.
Bathroom. Privacy plus moisture resistance: faux-wood Venetians, waterproof rollers, or frosted film with a simple blind. Real wood swells and natural fabrics mildew — avoid both.
Children’s rooms and safety. Choose cordless or keep cords well out of reach with cleats — looped blind cords are a genuine strangulation hazard for small children, and UK law requires safety devices on new blinds. Blackout helps sleep here too.
Measuring: Get This Right First
For curtains, measure the width of the pole or track (not the window) and allow the curtains to stack back mostly onto the wall so they do not block the glass. Ready-made curtains should total roughly 1.5–2 times the pole width for proper fullness — skimping here is the number one reason curtains look like bed sheets. For the drop: to the sill, just below the sill, or to the floor — floor-length looks best when it just touches or ‘kisses’ the floor; pooling fabric is a deliberate luxury, an accidental few centimetres is just a mistake.
For blinds, decide inside or outside the recess. Inside fits are neat but need precise measurements — width at three points, since windows are rarely true — and enough recess depth for the mechanism. Outside fits are more forgiving, block more light, and make small windows look bigger; overlap the wall by at least 5cm each side.
Fabric, Lining and Colour
Lining is not an upgrade, it is the point: lined curtains hang better, block more light, protect the face fabric from fading, and insulate. Choose blackout lining for bedrooms, thermal lining for draughty rooms, and standard lining elsewhere. For colour, match the room’s quietest tone rather than its loudest — window treatments cover a lot of area, and a neutral or softly patterned pair will outlive three redecorations. Take fabric samples home and look at them at the window, in daylight and lamplight, before ordering.
The Bottom Line
Dress each window for its job: curtains for softness and insulation, blinds for precision and wet rooms, and layers where you need both. Measure generously, line everything, hang curtains high and wide so windows look bigger — and your rooms will feel finished in a way no other single purchase achieves.
Frequently Asked Questions
Should curtains touch the floor?
Ideally yes — full-length curtains that just touch (‘kiss’) the floor look the most intentional. Curtains ending a few centimetres above the floor look accidental, while a deliberate small puddle of fabric is a styled choice for formal rooms.
Are blinds or curtains better for insulation?
Floor-length, thermal-lined curtains drawn closed are excellent insulators, especially over single glazing. Cellular (honeycomb) blinds are the best blind option, trapping air in their pockets. Layering a blind inside the recess with curtains over it beats either alone.
What is the best window treatment for a bathroom?
Faux-wood Venetian blinds or waterproof roller blinds: they give privacy, handle steam, and wipe clean. Avoid real wood and natural fabric curtains, which swell and mildew in damp air.
How wide should curtains be?
The two curtains together should measure about 1.5 to 2 times the width of the pole or track, so the fabric has full, even folds when closed. Less than that is the most common reason curtains look thin and mean.
