Search for the cost of a dry verge and you will find plenty of pages that give a confident figure. Look at where the figure comes from and it usually vanishes. Dry verge is priced by the metre of gable edge, but the jobs vary so widely that a single average tells you very little. A tidy two-metre verge on a bungalow and a long, high edge on a three-storey gable are different undertakings, and the price per metre is not the same. We have looked for a reliable published UK range and have not found one that stands up, so we do not offer a number. This page does the more useful thing: it sets out what makes the price move, so you can judge any quote you receive.
What a verge is, and what you are paying for
The verge is the edge of the roof at a gable end, where the slope finishes against the wall's upper triangle. Traditionally the last tiles are bedded in mortar over a course of undercloak, a strip of fibre cement, slate or tile that tucks under the verge tiles and carries water back onto the roof. That mortar is the part that cracks, falls out and lets wind get under the edge tiles. Our page on what a roof verge is explains the parts, and the answer on verge undercloak shows why it matters.
A dry verge replaces the mortar with a mechanically fixed system. A cap or trim clips to the edge, fixings go through into the roof timbers, and the joints are sealed without wet mortar. When you pay for a dry verge, you are paying for the removal of the old verge, any repair to the undercloak or the edge timbers, the system itself, the fixings and the labour to fit it. You are also paying for the access, which can be the biggest part of the bill.
Why there is no reliable single figure
Dry verge is a newer practice than dry ridge, and the pricing sources are thin. Most published numbers are lead-generation estimates that do not say what they include, or they are quoted per metre without saying how high the scaffold must go. A figure that includes scaffold cannot be compared with one that does not. A figure for a plastic verge cap on a low garage is not a figure for a clay-coloured system on a first-floor gable.
For orientation on neighbouring work, one UK cost guide puts a dry ridge at £900 to £1,600 for a semi, plus £300 to £900 of scaffolding. That is the ridge, not the verge, and it is a typical UK range and not a Beacon price. A second guide reports that roofline scaffold hire can run from £200 up to £2,600, depending on height and length. Those two numbers show how much of a small roof job is about the scaffold. Your fixed quote follows the survey, and that is the only number worth relying on.
What drives the price
These are the things that matter, roughly in order of influence.
- Height and access. A low verge reached from a ladder or a tower costs far less than a high gable needing scaffold to the eaves. Scaffolding is often the largest single line.
- Length of verge. Each gable edge has two sloping sides, and a house with several gables multiplies the run. Work is priced against the total length.
- Condition of the old verge. A verge that is simply cracked can be stripped and dry-fitted. One with rotten edge battens, damaged barge boards or failed undercloak needs repairs first.
- Undercloak. If the existing undercloak is missing or broken, new undercloak must be fitted. This is a labour and materials item.
- Tile and system match. The dry system must suit the tile profile. Some tile ranges have a matching verge system, and others need an adapter or a different cap. Specialist or clay-matched parts cost more.
- Roof pitch and shape. A steep roof takes longer to work on safely, and cut tiles at the edge add labour.
- Doing it alongside other work. Verges done with a re-roof or with ridge and hip work on the same scaffold cost much less, per metre, than a verge done alone.
| Cost factor | Lower cost | Higher cost |
|---|---|---|
| Access | Low edge, ladder or tower | High gable, full scaffold |
| Condition | Sound edge timbers and undercloak | Rotten battens, broken undercloak |
| System | Standard cap that suits the tile | Colour-matched or specialist parts |
| Scope | Done with other roof work | Done on its own |
| Length | One short gable | Several long gables |
Scaffold, and why it can outweigh the system
For a small run of verge at height, the scaffold hire can cost more than the dry verge parts and the fitting together. That is why we recommend dealing with every edge of the roof in one visit: ridge, hips, verges, fascia and guttering where they need work. If the scaffold is going up for a new roofline, the verge adds a fraction of its stand-alone cost. Our guide to guttering, soffits and fascias covers the roofline side of the same access. If only one low gable needs work, a tower may do, and a roofer who can work from a tower will charge less.
The reverse also holds. A quote for a single high verge that does not mention scaffold has probably left it out, and it will appear as an extra. Ask the question before you sign.
Three typical situations
These describe the shape of real jobs, with no prices attached, to show how the factors combine.
A short, low verge on a garage or extension. The edge can be reached from a ladder or a low tower, the length is small, and the system is a standard cap for the tile. This is the cheapest kind of dry verge job, and worth doing as soon as the mortar fails.
A pair of high gables on a detached house. The run is long and the scaffold is the main cost. Here it makes sense to have the ridge, the hips and the fascias checked while the scaffold is up, and to price the whole edge of the roof together. The verge is then one item in a shared job, not a lone visit.
An old verge with rot underneath. The mortar has failed for years, water has run into the edge battens and the barge board is soft. The dry system itself is the smaller part of the cost, and timber repair is the larger. This is the case where an early repair would have been much cheaper, which is the best argument for fixing a cracked verge promptly.
Dry verge against re-pointing the mortar
Re-pointing or re-bedding a mortar verge is usually the cheaper job on the day. The mortar is raked out and replaced, and the tiles are secured. The catch is that it is a repeat job, as the mortar cracks again, and the tiles still need mechanical fixing under current practice. The tiling standard, BS 5534:2014, expects verge tiles to be held on mechanically, and BS 8612:2018 covers the dry-fix systems used for the purpose. Our guide to verge repairs compares mortar, undercloak and dry verge, and the answer on whether dry verge needs approval covers the paperwork question.
So the useful comparison is not mortar now against dry verge now. It is the lifetime cost of each: the cost of the first job, plus the repeat visits and scaffold each time the mortar fails, against a single job that is designed to last. Where the roof is exposed to the wind, the gap often favours dry.
Can it be fitted to an existing roof?
In most cases, yes. A dry verge can be retrofitted by stripping the mortar and the edge tiles, checking the undercloak and fitting the system. Whether it suits your roof depends on the tile profile and the state of the edge. Our answer on fitting dry verge to an existing roof deals with it in detail. The cost of a retrofit is usually higher than the cost of the same system on a new roof, since the old verge has to be removed first and made good.
Reading a dry verge quote
A quote that tells you anything lists what it covers. When you compare, look for these points.
- Does it state the length of verge covered, in metres?
- Is scaffold or a tower included, and for how long?
- What system is being fitted, and does it match the tile?
- Is the undercloak repaired or replaced, and what is it made of?
- What happens if rotten timber is found under the old verge?
- Are fixings of a corrosion-resistant type?
- Is the old mortar and waste taken away?
- Is the workmanship guaranteed in writing?
A short quote with a single figure and nothing else is not a comparison point. A fuller one is.
When mortar is the better buy
Dry verge is not always the answer. On a period house, or where the council asks for a traditional look, a mortar verge that is also mechanically fixed may be the right and the required choice. On a short, low, sheltered verge, a careful re-bed can be perfectly sound and cheaper on the day. On a plain tile roof, where the verge is made of small tiles and special pieces, a dry system may not exist for the profile. We say so when that is the case. For a listed house or a street under conservation controls, ask the council's conservation officer before the detail changes.
Problems that raise the cost later
A poorly fitted dry verge can cost more than it saves. The commonest problems are verge caps that work loose, a system that does not suit the tile profile, rattle in the wind and colour mismatch. Our answers on why dry verge caps fall off and whether dry verges rattle cover those faults, and the guide to dry verge systems explains how a good one is built. A cheap quote that skips the undercloak or the corrosion-resistant fixings can look like a bargain until the first gale.
How we price a verge
We measure the verge, check the edge timbers and undercloak from the roof, and photograph what we find on your gable. We tell you whether a mortar repair would do or whether a dry system is the better route, and why. The price comes as a fixed written quote that states the length, the access, the system and what happens if the edge timber turns out to be bad. Work carries our written ten-year guarantee on workmanship, and we remove all the old mortar and waste. You can read more about the whole range of work on the ridge, verge and dry-fix systems page.
