A roofer installs, repairs and maintains the roofing systems that keep buildings weathertight. The trade covers a wide range of specialisms - pitched roof tiling and slating, flat roof systems (felt, EPDM rubber, GRP fibreglass and liquid applied membranes), leadwork for flashings and valleys, guttering and fascia installation, and roof window fitting. On residential projects, most roofers cover all of these skills; larger commercial roofing contracts often use separate specialists for pitched and flat roof work. The National Federation of Roofing Contractors (NFRC) is the main trade body and a useful quality indicator when choosing a roofing contractor.
What they do
- Tile and slate removal and reinstallation
- Full or partial roof replacement
- Flat roof installation and repair - felt, EPDM and GRP
- Chimney stack repointing, flaunching and lead flashing
- New extension roof construction
- Gutter and downpipe replacement
- Velux and roof window installation
- Lead flashing installation and repair at abutments and valleys
When you need one
Any leak, missing tiles, flat roof failure or gutter problem requires a roofer. Do not delay - roof problems deteriorate quickly and water ingress causes widespread secondary damage.
Typical costs (UK, 2025)
| Job type | Typical cost |
|---|---|
| Day rate | £150 - £280/day |
| Full roof replacement - 3-bed house | £6,000 - £15,000 |
| Flat roof replacement (per sq m) | £60 - £120/sq m |
| Emergency repair | £200 - £600 |
| Gutter replacement (per metre) | £20 - £40/m |
| Velux window fitting | £350 - £600 |
| Lead flashing (per metre) | £80 - £200/m |
Scaffold costs are additional to the above and vary by building height and complexity. EPDM and GRP flat roofs carry a higher material cost but offer better longevity than traditional felt.
Qualifications to look for
NFRC membership requires passing a competence assessment and adhering to a code of practice. Members offer a standard guarantee scheme. Find an NFRC member at nfrc.co.uk. Not a regulatory requirement but the most reliable quality indicator for roofing work.
The CSCS card confirms health and safety competence and trade qualification. Roofers working at height should also hold a valid working at height qualification.
The vocational qualification for roofers covers slating and tiling, flat roofing, leadwork and other specialist roofing sub-trades. Required for the blue CSCS card.
How to find a reputable roofer
Related Calculators
Roof Pitch and Rafter Calculator Loft Conversion Cost Calculator Extension Cost CalculatorFrequently asked questions
How do I know if my roof needs replacing or just repairing?
A RICS surveyor or experienced roofer can assess condition. Signs that suggest replacement rather than repair include widespread slipped or broken tiles, perished or failed felt, widespread cracking in flat roof membranes, or the roof being over 50-60 years old. A good roofer will advise honestly - if you are unsure, get a second opinion before committing to a full replacement.
How long does a roof replacement take?
A typical 3-bedroom semi-detached roof takes 3-5 days for a full replacement by an experienced roofing team. Larger or more complex roofs with multiple valleys, dormers or chimney stacks will take longer. Allow additional time for scaffolding erection and removal.
Do I need planning permission for a roof replacement?
Usually no for a like-for-like replacement on the same footprint using the same or similar materials. Planning permission is required for changes to roof shape, height or materials in conservation areas, on listed buildings or where the roof work constitutes a material change. Always check with your local planning authority if in doubt.