Skip to content
LokalMatch

Roof Replacement

Roof Replacement near you

Replacing a roof covering is notifiable building work in England and Wales, and the ordinary way homeowners satisfy that is through the installer. GOV.UK's register of authorised competent person schemes names CompetentRoofer, operated by the National Federation of Roofing Contractors Limited, and NAPIT Registration Limited, each authorised for replacement of roof coverings on pitched and flat roofs including any necessary connected work, but not solar panel installation. The Ministry of Housing, Communities and Local Government authorises the schemes, and members must demonstrate that they meet the relevant minimum technical competence requirements.

Tell us about your roof replacement project and we’ll help you find local roofers who serve your area.

Free for homeowners · No obligation to hire

On this page

A re-cover is also the moment several other requirements arrive at once. The Planning Portal states that as a roof is defined as a thermal element, work to re-cover a roof should also include improving the thermal insulation properties of the roof, and that where the existing covering is to be replaced with a different material, approval is likely to be needed to confirm the roof is adequate in terms of structural stability and meets requirements for fire safety and energy efficiency.

Weight is the structural question behind all of it. A concrete interlocking tile and a natural slate are not interchangeable loads on a Victorian rafter, and the Planning Portal advises checking with a structural engineer or surveyor before starting where a new covering is significantly heavier or lighter than the existing one.

What a full re-roof involves, from the scaffold going up to the last ridge

The scaffold and the skip arrive first, and on a terrace or a narrow street that is a logistics exercise in its own right, often involving a pavement licence from the council and a conversation with neighbours whose access is affected. Stripping follows: the covering, the battens and the old underlay come off in sections so that the roof is never left open to a forecast nobody checked.

What the strip reveals decides the rest. Rafters, purlins, the wallplate and the rafter feet are inspected once they are visible, and rot at the eaves is the common find on an old roof that has been leaking quietly into a gutter for years. A quotation that says nothing about how timber repairs are priced is a quotation with an open end in it, so agree the rate before the roof comes off rather than on the day.

Re-covering then builds up in order: underlay, counter-battens where the specification calls for them, battens set to the gauge of the covering, then the covering itself, with lead or a proprietary system at valleys, abutments and around the chimney. Ventilation is part of the build-up, not an afterthought, and ridges and hips are either bedded in mortar or fixed with a mechanical dry-fix system. Ask which, because it changes both the maintenance and the behaviour of the roof in a gale.

Who notifies building control when the whole covering comes off

There are two lawful routes and you should know which one you are on before the scaffold is booked. GOV.UK sets out that you either apply to a building control body, meaning your local authority's building control department or a private registered building control approver, or use someone registered with a competent person scheme, in which case you do not need to get approval yourself. The published scheme list is specific about scope: CompetentRoofer and NAPIT are authorised for replacement of roof coverings on pitched and flat roofs and any necessary connected work, with solar panel installation excluded.

The consequence of skipping it is deferred rather than avoided. GOV.UK's warning is that without approval you will not have the certificates of compliance you may need when you want to sell your home, and a roof replaced ten years ago with no paperwork becomes a conveyancing problem long after the roofer has gone.

Across the borders the vocabulary changes. In Scotland, mygov.scot lists changing roofs among the work requiring a building warrant, granted by the local council's building standards department, valid for three years, with starting work without one an offence that can be fined. Northern Ireland administers its own regulations through technical booklets, with Booklet D covering structure, Booklet E fire safety and Booklets F1 and F2 conservation of fuel and power.

Like-for-like or a different covering? The weight, fire and insulation consequences

Replacing like with like is the simplest specification and, on a listed building or in a conservation area, often the only one available. Changing material is where the regulations bite. The Planning Portal is direct: if the existing covering is to be replaced with a different material, for example slate to tiles, approval under the Building Regulations is likely to be needed to ensure the roof will be adequate in terms of structural stability, applicable where the replacement tile will be significantly heavier or lighter than the existing, and also meets requirements in respect of fire safety and energy efficiency.

The threshold is quantified elsewhere in the same guidance: a new covering material that increases the weight of the roof covering by 15 per cent or more brings the work within the regulations. Where the new covering is significantly heavier or lighter, the roof structure may need modifying or strengthening, and the advice is to check with a structural engineer or surveyor before work begins. Approved Document A in England is the relevant guidance, covering the loadings on a building and the construction of the structural elements including the foundations, walls, floors, roofs and chimneys.

Lighter is not automatically safer, either. The Planning Portal's guidance on roof loading notes that the loads a roof carries include the materials, the weather in the form of wind, snow and rain, and maintenance access by a person, and that the roof should be tied down to the structure to stop it lifting in strong winds. Swapping heavy concrete tiles for a lightweight system without addressing fixings and tie-down is a wind problem waiting for the right storm.

Signs the covering has reached the end rather than needing another patch

  • Slipped slates or tiles appearing after every spell of wind, in different places each time, rather than in one repaired spot.
  • Units that crumble, delaminate or snap when handled, so each repair creates the next one.
  • Underlay that has perished across the whole roof and hangs in strips between the rafters when seen from the loft.
  • Battens so soft or split that a nail no longer holds, which no amount of re-fixing the covering will solve.
  • Repeated repairs to the same roof by different firms, with the leak simply moving along the slope.
  • A visible dip or ripple along the ridge or between rafters, which needs a structural opinion before any covering is ordered.
  • A flat roof with multiple patched areas, standing water and failed upstands, where the falls were never right to begin with.

What decides how long a new British roof lasts

Coverings in the United Kingdom rarely fail because the material wore out. Natural slate frequently outlasts the nails holding it, clay and concrete units outlast the mortar bedding them, and flat roof membranes outlast the detailing at their edges. That is why the parts of a quotation dealing with fixings, flashings, valleys and upstands matter more to the lifespan of the roof than the headline name of the covering.

Exposure does the rest. A west-facing slope in a coastal or upland location takes driving rain and salt that a sheltered inland roof never sees, a shaded northern slope holds moss and moisture through the winter, and a roof shaded by mature trees collects debris in its valleys all autumn. Ask the roofer what they expect to need attention first on your particular roof, and in what order, because a specification written for an exposed elevation is not the same as one for a sheltered one.

What moves the price of a British re-roof, without naming a number

  • Access and scaffolding: a mid-terrace needing the front and rear elevations scaffolded, a pavement licence and a permit to place a skip is a different job from a detached house with a driveway.
  • The covering itself and whether the roof must be matched: natural slate, handmade clay and reclaimed materials sit at a different level from a standard concrete interlocking tile.
  • Heritage constraints: a listed building or a conservation area can remove the cheaper specifications from the table before anyone prices anything.
  • Leadwork: chimney stacks, valleys, parapets and abutments are priced separately from the field of the roof, and the number of them is often the biggest variable on an older house.
  • Structure: strengthening triggered by a change of covering weight, or timber repairs found once the roof is open.
  • Insulation: upgrading the thermal element to the standard the Approved Documents require, which the Planning Portal ties to a roof renovation where more than 25 per cent of the roof is being renewed.
  • Disposal: stripped slate, tiles, battens and felt are bulky, and anything suspected of containing asbestos has to be handled and disposed of as hazardous waste.

Certificates, guarantees and the file you keep for the next sale

Three documents should survive the job: the specification you agreed, the notification paperwork or scheme certificate, and the guarantee. Approved Document L, the England guidance on the energy performance of new and existing buildings in a volume for dwellings and a volume for other buildings, is the reference behind whatever insulation was installed, so keep the specification that says what went in and at what thickness.

A guarantee is only as strong as whoever stands behind it. Ask in writing whether it is insurance-backed, what it excludes, and whether it transfers to a buyer, and be clear that a manufacturer's warranty on a covering is not the same thing as a workmanship guarantee from the contractor. TrustMark, the government-endorsed quality scheme covering work a consumer chooses to have carried out in or around their home, gives a further route to complain if something goes wrong.

Roof Replacement: frequently asked questions

Do I need planning permission to replace my roof?

Usually not. The Planning Portal's position is that work to the roof of a house, for example re-roofing, that does not materially affect its external appearance will usually not require planning permission. The exceptions are the ones that matter: national planning practice guidance states that works to alter a listed building in a way that affects its character as a building of special architectural or historic interest require listed building consent, and that carrying out such works without consent is a criminal offence, while permitted development rights are more restricted in conservation areas. Ask the local planning authority before materials are ordered.

Does replacing the roof mean I have to insulate as well?

In England and Wales, very probably. The Planning Portal states that as a roof is defined as a thermal element, work to re-cover a roof should also include improving the thermal insulation properties of the roof, and separately that where loft insulation is installed as part of a roof renovation project in which more than 25 per cent of the roof is being renewed, the level of insulation should meet the standards required by the building regulations Approved Documents. Ask for the insulation specification to appear on the quotation rather than being settled on site.

Can I change from slate to concrete tiles, or the other way round?

Only with the structure checked first. The Planning Portal says that replacing an existing covering with a different material, for example slate to tiles, is likely to need approval under the Building Regulations for structural stability, fire safety and energy efficiency, that a new covering material increasing the weight of the roof covering by 15 per cent or more brings the work within the regulations, and that where the new covering is significantly heavier or lighter the roof structure may need modifying or strengthening, with a structural engineer or surveyor consulted before works begin.

Who tells the council the roof has been replaced?

Either your roofer's scheme or you. GOV.UK sets out the two routes: apply to a building control body, being the local authority's building control department or a private registered building control approver, or use someone registered with a competent person scheme, who self-certifies so that you do not have to get approval yourself. CompetentRoofer, run by the National Federation of Roofing Contractors, and NAPIT are the authorised schemes for replacement of roof coverings on pitched and flat roofs. Settle in writing which route applies before the job starts.

Is a re-roof handled the same way in Scotland and Northern Ireland?

No. Scotland uses building warrants: mygov.scot lists changing roofs among the work you need a warrant for, granted by your local council's building standards department and valid for three years, and warns that it is an offence to start work without one and that you could be fined. Northern Ireland has its own regulations set out in technical booklets, including Booklet D on structure, Booklet E on fire safety and Booklets F1 and F2 on conservation of fuel and power. The England and Wales Approved Documents and competent person schemes do not carry across.

How long will my house be under scaffolding?

Longer than the roofing itself, because the scaffold goes up before the strip and comes down after the last detail is finished, and because the programme is weather-dependent in a way that indoor work is not. Ask for the expected sequence in writing: scaffold date, strip, expected timber repairs, re-cover, leadwork, scaffold removal and clearance, plus what happens to the programme if a storm arrives mid-strip and how the roof is made watertight overnight.

How does LokalMatch work for a roof replacement?

You set out the house, the covering and the reason you are replacing it in one request, and roofing contractors working in your area come back to you directly. They pay for the requests; posting one costs a homeowner nothing. LokalMatch neither re-roofs houses nor sets prices, and it does not vet, rank or recommend any contractor, so comparing specifications on the same scope and checking scheme registration remains your part of the job.

Sources

  1. GOV.UK: Competent person scheme — current schemes and how schemes are authorised
  2. GOV.UK: When you need building regulations approval
  3. Planning Portal: Building regulations — re-roofing
  4. Planning Portal: Building Regulations — work to an existing roof
  5. Planning Portal: Building Regulations — new roofs, weight (loading)
  6. Planning Portal: Roof — planning permission
  7. Planning Portal: Building Regulations — loft insulation
  8. GOV.UK: Approved Document A — structure
  9. GOV.UK: Approved Document L — conservation of fuel and power
  10. GOV.UK: Conserving and enhancing the historic environment (planning practice guidance)
  11. mygov.scot: Getting a building warrant
  12. Building Control Northern Ireland: technical booklets
  13. TrustMark: government-endorsed quality scheme

Written by the LokalMatch editorial team. Last reviewed 14 September 2026. How we write and check our guides

Find roofers by city

England

Show 173 cities

What affects the cost of roof replacement

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Roof size and the number of layers to remove
  • Roofing material
  • Slope and how steep the roof is to work on
  • Access to the roof and the site
  • Condition of the decking underneath
  • Flashing, vents, skylights and chimneys to work around
  • Amount of repair work compared with a full replacement

How to compare roofers before you hire

  • Ask for a written quote that lists the materials, the scope of work and what happens if damaged decking is found once the old roof is off.
  • Look for a roofer who inspects the roof in person, including the attic if possible, before giving you a price.
  • Check that they carry liability insurance and workers' compensation coverage, since roof work is high-risk.
  • Compare quotes on the same scope: tear-off or overlay, underlayment, flashing, vents and cleanup.
  • Ask to see recent roofs they've done that are similar to yours in material and slope.

Questions to ask roofers before you hire

  • Will you remove the old roofing or install over it, and why?
  • How will you handle damaged decking or other surprises once the roof is open?
  • Who will pull the permit if one is needed?
  • Can you show me proof of liability insurance and workers' compensation coverage?
  • What warranty do you offer on your workmanship, and how long does it last?
  • How will you protect my yard, gutters and siding, and how will you clean up nails and debris?
  • Will your own crew do the work, or will you use subcontractors?

When to call a pro for roof replacement

  • Water stains on ceilings or in the attic after rain or snowmelt
  • Missing, curled or cracked shingles, or granules collecting in the gutters
  • Sagging areas on the roof, which should be looked at by a professional right away
  • Ice dams that keep forming along the edge of the roof

Roof replacement permits and local rules

Some roof replacement work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

Seasonal maintenance

This job is part of our home maintenance checklists for:

Free project calculators

Ready to get roof replacement quotes?

Tell us about your roof replacement project.

Do you offer roof replacement services?

Join LokalMatch to get matched with homeowners in the areas you serve.