The short answer
A re-roof on an ordinary house usually takes from a few working days to a couple of weeks. A terrace with a plain covering sits at the short end, a large detached house with hips or stone slates at the long end. Scaffold, strip-out, timber repairs and wet weather all add days, so a firm date comes only after a survey.
Rough timings by house type
We cannot give one number, and we would be wary of anyone who does. These are typical bands, not promises, and the survey of your own roof will tell you more.
| House | Typical working time | What stretches it |
|---|---|---|
| Terraced, simple gable | A few working days | Shared party walls, tight rear access |
| Semi-detached | About a week | Chimney work, bay roofs |
| Detached, gable ends | One to two weeks | Two large slopes, dormers |
| Detached, hipped or stone slate | Two weeks or more | Hips, valleys, sorting stone |
MyBuilder's 2026 new roof cost guide separates gable from hipped roofs on price for the same reason: a hipped roof has more cuts, more ridge and more flashing to do, and every one of those takes labour time.
Ask any roofer which of these bands they are quoting, and why. A short programme is only believable if the crew size, the scaffold date and the material delivery all line up behind it.
Crew size changes the arithmetic. Two roofers on a semi take longer than four, but four can get in each other's way on a small slope, so more people do not always mean proportionally fewer days.
How the days are spent
The scaffold goes up first, and it can take a day to erect on a larger house. Then the covering comes off slope by slope, battens and underlay are laid, and the new covering goes on. Ridge, hips and verges follow, then lead work at chimneys, abutments and valleys, and finally gutters and the clear-up. Our page on a Stroud roof replacement, step by step describes the sequence.
Stripping is quicker than re-laying. Taking a slope off and fixing fresh underlay and battens can be done in a day or two, and a good crew will want that slope weathered by dusk rather than left open.
Slate and stone are slower than tile, because each piece is laid with its own headlap and gauge. Cotswold stone slates are graded by length, the longest hung low and the shortest high, so the work is closer to building a wall than hanging a sheet. A plain concrete tile covers ground quickly by comparison.
On a house with several chimneys, each stack adds flashing and pointing work that can run alongside the main roof, or hold it up if the brickwork needs attention.
What adds days
The common causes of delay are the ones found once the covering is off. Rotten battens or rafter feet that need replacing, a chimney that needs repointing or rebuilding, and lead that does not survive being lifted all add time. Paperwork can matter as well: the position on planning permission for a re-roof is worth settling early, because a consent or notification left until late can hold the start date back.
Access is a Stroud matter. Steep lanes, hillside terraces and houses with no rear path mean materials may be carried up rather than lifted, a skip may need a space on the street, and lorries may have to deliver in several smaller drops. All of that is priced in at survey stage, not met for the first time on site.
Material lead times count too. Natural slate, clay tiles and matched stone slates can take longer to arrive than a standard concrete tile, and the start date follows the stock. Ordering weeks before the scaffold is booked avoids a gap with the roof stripped and nothing to put on it.
Occupied homes can slow things slightly too, since rooms below the roof may need protecting, and a household that needs quiet at certain times can limit the hours worked. Our page on planning permission is the one to read first if the covering is changing.
Weather and the schedule
Rain does not stop a roof job, but it does change the order of work. A slope that cannot be finished is made watertight with sheeting overnight. High wind is a different problem, since sheets, slates and roofers on a scaffold platform do not mix, and work pauses until it drops.
Allow a few spare days. If your programme is tight because of a house move, a family event or a lender's deadline, say so at survey, and we will tell you plainly how much slack the roof allows. The month you pick can also affect how easy it is to book, which our guide to the best time of year to replace a roof covers.
Whatever the season, most of the programme is made up of ordinary working days with a steady crew. A job that looks long on paper is often simply the same sequence, repeated on a bigger roof.
If rain is forecast for several days, the crew may switch to lead work, gutters or the other slope, so the calendar slips less than you might fear.
Getting a realistic date
A date is only as good as the survey behind it. We inspect the slopes from outside and the timbers from the loft, take photographs, and note the access, the covering, the chimneys and the condition of the timber. The written quote that follows covers the job from scaffold through to making good, with a programme set beside it.
Where the roof turns out larger or more complex than it looked from the ground, you hear about it before work starts, not halfway through. Our finished work comes with a ten-year written guarantee on workmanship. To book a survey, see roof replacement in Stroud, ring 01453 933613 or send photographs on WhatsApp.