Shop for a pergola with a proper roof and you will meet three words quickly: louvred, retractable and electric. They get used loosely, often for the same product, and the difference between them decides how your roof works, what it costs, and what can go wrong with it down the line. At Cape & Co we build manual louvred pergolas, so our view is on the record, but this guide lays out all three fairly so you can pick the roof that suits your garden and your budget.
In This Guide:
- The quick verdict: all three roof types in one table
- What the words mean: louvred vs retractable vs electric
- Cost: what each roof type adds to the bill
- Reliability: what can break, and what cannot
- How to choose: which roof fits your garden
- FAQs: rain, power, motors and value
The quick verdict
A manual louvred roof gives you adjustable shade and full rain protection with nothing electrical to fail, at the lowest price. A motorised or electric louvred roof does the same job at the touch of a button, for more money and with motors and sensors to maintain. A retractable fabric roof slides fully open for clear sky but offers weaker shelter in heavy rain and the fabric wears. Here is the full picture:
| Manual louvred | Electric / motorised louvred | Retractable fabric roof | |
|---|---|---|---|
| How it works | Rotating aluminium slats, adjusted by hand | Rotating aluminium slats, adjusted by motor and remote | Fabric panel that slides or folds open and shut |
| Rain protection | Full: close the slats, water drains away | Full: close the slats, water drains away | Partial: sheds light rain, struggles in heavy rain |
| Light control | Open, tilt or close to any angle | Open, tilt or close to any angle | Fully open or fully closed |
| Power needed | None | Mains or hard-wired supply | Usually mains for motorised versions |
| Typical UK price | From ~£2,000 | From ~£3,000, often £5,000+ | ~£1,500 to £6,000+ |
| Parts that can fail | Very few; a manual handle mechanism | Motor, control board, sensors, wiring | Motor and the fabric itself |
| Maintenance | Wash down; clear the gutters | Wash down, plus electronics to service | Clean and re-tension fabric; replace every few years |
What the words actually mean
Most of the confusion in this category is vocabulary, so it is worth being precise. The three terms describe two different things: how the roof moves, and how you move it.
Louvred (or bioclimatic)
A louvred roof is made of solid aluminium slats, the louvres, that rotate on their axis. Open them flat for full sun, tilt them for dappled shade and airflow, or close them into a flat, sealed surface that sheds rain through built-in guttering. Because the slats are rigid aluminium, a louvred roof is a permanent, all-weather structure rather than a fair-weather cover. "Bioclimatic" is just the industry word for the same thing. Our complete louvred pergola guide explains the mechanism in full.
Retractable
A retractable roof slides or folds fully out of the way, usually a fabric panel running on a track, so you can have completely open sky when you want it. The trade-off is shelter: fabric handles sun and light showers but pools and strains under heavy or prolonged rain, and it has a service life measured in years rather than decades. Some slatted roofs are described as retractable too, but in UK gardens the retractable label most often means a fabric cassette system.
Electric (or motorised)
Electric and motorised describe how the roof is driven, not what it is made of. A motorised louvred roof is still a louvred roof; a motor and remote do the turning instead of a handle. It needs a power supply and adds the cost and the failure points of the electronics. The same applies to motorised retractable roofs. So the real choice is two questions stacked together: louvres or fabric, and by hand or by motor.
The Meridian 6m x 3m Aluminium Louvred Pergola in Graphite Grey
Cost: what each roof adds to the bill
Price tracks the mechanism. A manual louvred pergola is the most affordable route to a true all-weather roof, because there is no motor, no wiring and no electrician. Our own Meridian range starts at £2,100 for the 3m x 3m and runs to £4,200 for the 6m x 3m, all manual.
Adding a motor is where the number jumps. Motorised and electric louvred pergolas in the UK typically start around £3,000 and frequently pass £5,000 or £6,000 once you include the powered roof, lighting and installation, and they need a power supply running to the structure. Retractable fabric systems span a wide range depending on size and whether they are motorised. For a full breakdown of pergola pricing by material, size and installation, see our UK pergola cost guide, which sets the manual louvred option against the wider market.
The honest framing is value rather than headline price: a manual louvred roof delivers the same adjustable shade and rain protection as a motorised one for a few hundred to a few thousand pounds less, and it does not put a motor between you and your garden.
The Meridian 3m x 3m Louvred Pergola with 3 Side Blinds
Reliability: what can break, and what cannot
This is where manual louvres quietly win. A hand-operated louvred roof has almost nothing to go wrong: rigid aluminium slats, a simple turning mechanism, and integrated drainage. Leave it for a winter and it works the same in spring.
Every powered feature you add is another thing that can fail outdoors, in British weather, often years after the warranty on the electronics has lapsed. Motors, control boards, rain sensors and wiring all sit exposed to damp and temperature swings, and a fault can leave a roof stuck open or shut. Retractable fabric adds its own wear: tensioning, cleaning and eventual replacement. None of this means motorised roofs are bad, plenty of people love the convenience, but it is worth going in clear-eyed that convenience and complexity arrive together. The same logic runs through our aluminium vs wooden pergola comparison: the fewer the moving and perishable parts, the lower the lifetime cost.
Cape & Co. tip
If you like the idea of a powered roof, ask one question before you buy: what happens in ten years if the motor fails, and who repairs it? A manual louvred roof sidesteps the question entirely, which is a large part of why we build them that way.
How to choose the right roof
It comes down to what you most want from the space.
Match the roof to the priority
- All-weather use with the lowest running risk: a manual louvred roof. Full shade control and rain protection, nothing electrical to fail, the keenest price.
- Push-button convenience and budget is secondary: a motorised or electric louvred roof. The same protection, operated by remote, at a premium and with electronics to maintain.
- Clear open sky above all else: a retractable fabric roof. Best for opening the space right up, accepting weaker heavy-rain shelter and periodic fabric replacement.
If you are still deciding between a pergola and another structure entirely, our pergola vs gazebo guide and the broader pergola buying guide are the right starting points, and the planning permission rules apply whichever roof you pick. For whether the spend is worth it at all, see are pergolas worth it?
The manual louvred option at Cape & Co
The Meridian is our answer to the roof question: a 6063-T5 aluminium frame in Graphite Grey with a triple-layer powder-coated finish, a double-skinned adjustable louvred roof that opens for sun, tilts for shade and closes to shed rain through integrated drainage, all operated by hand with no motor to maintain. Add optional Textilene side blinds for shelter from wind and low sun, and pair it with the rest of the garden, from dining sets and sofa sets to garden parasols for the uncovered corners. The structure, including the louvre mechanism, carries a two year warranty, delivery is free on UK mainland orders over £100, typically in 7 to 14 days, and professional installation is available from £500.
FAQs
What is the difference between a louvred and a retractable pergola?
A louvred pergola has rotating solid aluminium slats that tilt to control sun and close to shed rain, staying in place all year. A retractable pergola has a fabric roof that slides fully open for clear sky, but offers weaker protection in heavy rain and the fabric wears over time.
Do manual louvred pergolas keep the rain out?
Yes. When the louvres are closed they form a flat, sealed surface, and rain runs off into integrated guttering that drains down through the posts. A manual louvred roof gives the same rain protection as a motorised one; only the method of closing the slats differs.
Are electric pergolas worth it?
An electric or motorised pergola is worth it if push-button convenience matters to you and the budget allows, since it offers the same shade and rain control as a manual louvred roof. The trade-offs are a higher price, the need for a power supply, and motors and sensors that can fail outdoors over time.
What can go wrong with a motorised pergola roof?
The common failure points are the motor, the control board, the rain or wind sensors and the wiring, all of which sit outdoors. A fault can leave the roof stuck open or closed. A manual louvred roof avoids these points because there are no electronics to fail.
How much does an electric or motorised pergola cost in the UK?
Motorised and electric louvred pergolas typically start around £3,000 and often pass £5,000 to £6,000 with lighting and installation. A manual louvred pergola gives the same roof function from roughly £2,000, which is why it is the lower-cost route to an all-weather roof.
Is a retractable roof better than louvres?
It depends on the priority. A retractable fabric roof is better for opening the space fully to clear sky; a louvred roof is better for year-round rain protection, finer shade control and durability. For most UK gardens that want all-weather use, louvres are the more practical choice.
