A roof replacement, or re-roof, strips the old tiles or slates, battens and felt from a pitched roof and replaces them with a new breathable membrane, battens and covering, repairing timbers and renewing ridges, valleys and flashings at the same time.
Getting a new roof right in Carshalton starts with understanding the house you already have: its age, how it was built and what has been altered over the years. We survey first, then commit on paper to a price that holds as long as the scope stays the same. Across London, guide prices run at £9,100–£19,500 including VAT, and homes in Wallington, Sutton and Mitcham are covered too.
- Guide price
- £9,100–£19,500 inc VAT
- Time on site
- 1–2 weeks on site, plus scaffolding time
- Postcodes
- SM1, SM2, SM3, SM4 and SM5
- Planning rules
- England
- Local area
- Greater London
- Survey
- Free, with a written quote
How much does a new roof cost in Carshalton?
No two jobs cost exactly the same, but the ranges below give a fair picture of a new roof in Carshalton. Pricing for London runs about 30% above the national guide, and the overall guide is £9,100–£19,500 with VAT included. We'll confirm your figure after surveying the property for free.
| Type of job | What it usually involves | Guide in Carshalton |
|---|---|---|
| Terraced house or bungalow | A smaller pitched roof re-covered in concrete or clay tiles, including scaffolding. | £6,500–£13,000 |
| Typical semi-detached | A 3-bed semi re-roofed in concrete or clay tiles with new membrane, battens and leadwork. | £9,100–£19,500 |
| Detached or natural slate | Larger or more complex roofs, or any roof finished in natural slate. | £15,500–£32,500 |
What moves the price up or down:
- Roof area, pitch and the number of hips, valleys and dormers
- Covering material: concrete tile, clay tile or natural slate
- Chimneys, leadwork and roof windows to rework
- Scaffolding, access and the height of the house
What do you get?
- Scaffolding with edge protection, erected and removed
- Stripping old tiles or slates, battens and felt in stages
- Repairs or replacement of damaged rafters and fascia boards
- Breathable membrane and new treated battens
- New tiles or slates, or sound originals refitted where suitable
- Waste removal by skip and a clean site on completion
Homes in London
London's housing is dominated by Victorian and Edwardian terraces, often in yellow London stock brick, with Georgian terraces in central districts and mansion blocks across many inner areas. Outer boroughs have large belts of interwar semis, and there are extensive post-war council estates. Many houses have been split into flats, and conservation areas are widespread.
Terraces suit side-return extensions and rear dormer loft conversions; interwar semis commonly take hip-to-gable lofts. Shared party walls, restricted parking and conservation rules often shape the plans and the programme.
Knowing the typical building types in London helps, but a survey of your own home in Carshalton is what decides the right approach to a new roof.
Permissions for a new roof in Carshalton
As Carshalton is in England, read the following with that system of planning and building control in mind. We check what applies to your house with the council before you receive a quote.
Re-roofing a house with similar materials does not usually need planning permission in England. Listed buildings and conservation areas may need consent if the covering changes.
Replacing more than a quarter of a roof’s covering counts as renovation under Building Regulations, so the work is notified and the roof insulation may need upgrading. Bats are protected across the UK; if they roost under roof tiles, soffits or fascias, work stops and a licensed ecologist advises before it restarts.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
From survey to handover
Survey and measure
We begin by looking at the job in person. During the free survey we discuss options, materials and budget for a new roof, and photograph or measure anything the quote needs to reflect.
Price and scope agreed
After the survey we send a quote for a new roof that fixes the price for the scope we've agreed. If you want to change materials or scope, we revise it in writing before anything is booked.
Booking the work
We handle the paperwork side: checking whether planning permission or building control approval is needed, submitting applications where they are, and scheduling the trades and materials around your dates.
The work itself
The job proceeds in the order set out in the programme, with dust and debris kept under control. Finally we tidy away, inspect the work together and pass the finished project over to you with its paperwork.
What you can expect from us
Roof replacement in Carshalton: questions
Do you cover Wallington, Sutton and Mitcham?
Yes. As well as Carshalton, we cover Wallington, Sutton and Mitcham and the rest of London. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.
How long does a roof replacement take?
Re-roofing a typical semi-detached house takes around one to two weeks once scaffolding is up, depending on the roof's size, complexity and the weather. Smaller terraced roofs can take a few days. Scaffolding usually goes up a day or two before work starts and comes down once everything is inspected. We give you a programme and keep the roof weathertight overnight.
How long will a new roof last?
A well-installed roof lasts for decades. Concrete tiles typically last around 50 years or more, clay tiles longer, and natural slate can last a century with proper upkeep. Lifespan depends on the quality of materials, fixings, ventilation and leadwork, and on how exposed the roof is. Keeping gutters clear and fixing slipped tiles quickly helps it reach its full life.
How do I know if I need a new roof or just repairs?
A roof needs replacing when problems are widespread, not isolated. Signs include many slipped, cracked or porous tiles, sagging between rafters, daylight or damp in the loft, perished felt that crumbles to the touch and repeated leaks in different places. A few slipped tiles or a loose ridge can usually be repaired. We inspect from outside and inside the loft and tell you honestly which is needed.
Which postcodes in Carshalton do you cover?
We cover SM1, SM2, SM3 and SM4, along with the rest of London. If your postcode is not listed, get in touch anyway: our coverage is UK-wide, and we can usually arrange a survey wherever you live. Enter your postcode in the guide-price tool or contact form and we will confirm.
Nearby towns
Carshalton and its SM1, SM2, SM3 and SM4 postcodes are part of our coverage. Homeowners in Wallington, Sutton and Mitcham can also book a free survey with us and receive a written price for their job.