M Renovations

Serving Monmouthshire, South Wales

Lime plastering and heritage renovation across Monmouthshire.

From Georgian townhouses in Monmouth to stone farmhouses above the Usk valley, Monmouthshire's older buildings were built with lime — and we repair them the same way. We are based near Newport, on the county's doorstep.

Working on Monmouthshire's older buildings

Monmouthshire's building stock reflects centuries of borderland history. The market towns — Monmouth, Usk and Chepstow — carry handsome Georgian and earlier townhouses, coaching inns and shopfronts, most of them solid-walled and originally finished in lime inside and out. Out in the countryside the pattern shifts to stone farmhouses, threshing barns and estate cottages, and along the Wye Valley to smaller cottages tucked into the wooded gorge between Chepstow and Monmouth. Add the castles, priories and church buildings scattered across the county and you have one of the richest concentrations of historic fabric in South Wales.

Almost all of it predates cavity walls and damp-proof courses, which means it manages moisture by breathing: rain and ground moisture move through permeable lime plasters, renders and mortars and evaporate away. The most common problem we see in the county is the result of well-meaning modern repairs — cement render on a stone farmhouse, gypsum skim over old lime, hard cement pointing in soft rubble walls. These trap moisture in the fabric. The symptoms are familiar: persistent damp patches, blown plaster, salt staining, spalling stone and rotting joinery. The cure is rarely another chemical treatment; it is usually to take the cement off and put lime back.

What we do in Monmouthshire

  • Lime plastering — three-coat work on stone and brick, and haired lime on lath
  • Lime rendering — breathable external renders, from smooth-set to roughcast
  • Lime pointing — raking out cement and repointing rubble and dressed stone in lime mortar
  • Limecrete floors — insulated, breathable floor slabs to replace failed or damp solid floors
  • Full renovation of period and listed buildings, from single rooms to whole-house projects

Listed buildings and conservation areas in Monmouthshire

Monmouthshire has a large number of listed buildings for its size, and conservation areas cover the historic cores of towns and villages across the county. If your building is listed, most repair and alteration work — including replacing plaster, render or pointing — is likely to need listed building consent, and like-for-like repair in lime is commonly a condition of that consent. Conservation-area status can also affect what you may do to external finishes. We work in the materials and methods conservation officers expect to see, and we are happy to describe our proposed approach in whatever detail your application needs. If you are unsure whether consent applies, the local authority conservation team is the right first call, and we can help you frame the question.

Nearby areas we also cover

As well as Monmouth, Usk, Chepstow, Raglan, Caldicot and the Wye Valley villages such as Tintern and Llandogo, we regularly work in Abergavenny, Caerleon and Newport, and across the border around Ross-on-Wye and the Forest of Dean. If your building is within reach of the county, it is within reach of us.

Planning work in Monmouthshire?

Tell us about the building and the work you are considering — photos help. We will come back with honest advice and a clear quote.

Get a quote

Common questions

Questions we hear most.

Do you work on listed buildings in Monmouthshire?

Yes. Much of our work is on listed buildings, where repair in matching lime materials is usually expected and often a condition of consent. We can set out our methods and materials to support a listed building consent application.

Do you cover the Wye Valley villages?

Yes — Tintern, Llandogo, Brockweir and the villages along the valley between Chepstow and Monmouth are all comfortably within our working area, on both banks of the river.

My stone farmhouse has damp problems since it was rendered in cement. Can you help?

This is one of the most common situations we are asked about in rural Monmouthshire. Cement render stops a solid stone wall from drying outwards, so moisture builds up inside the fabric. The usual remedy is careful removal of the cement, repair of the stonework, and re-rendering in lime. We assess each wall before recommending anything.

How do I get a quote?

Get in touch and describe the building — its age, construction and what is going wrong. Photos help a great deal. For firm pricing we arrange a site visit, because with old buildings the right answer depends on what the wall is actually doing.

Services in Monmouthshire

What we can take on.

Traditional lime plasteringLime plasteringConservation plasterworkHeritage plasteringBreathable external renderLime renderingLime mortar pointingLime pointingRepair & making goodPlaster & render repairBreathable limecrete floorsLimecrete floorsRenovation & restorationRenovation & full builds

Also covering

Nearby areas.

South WalesNewportSouth WalesCardiffWest of EnglandBristolSouth WalesSwanseaMonmouthshireAbergavennyHerefordshireHerefordGloucestershireGloucester
M Renovations

Let’s protect another piece of history.

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