Stonemasonry in Staines, Surrey

Lime mortar is softer and more permeable than cement – it allows moisture to move through the wall and evaporate naturally, which is how pre-1920s buildings were designed to manage moisture. It is also slightly flexible, so it can accommodate the small movements that all buildings make over time without transferring stress into the stone or brick. Cement is harder and less permeable – it is the appropriate choice for modern construction but can cause serious long-term damage when applied to historic masonry. When cement is used to repoint period stonework, moisture that would previously have evaporated through the joints is instead forced to move through the stone itself, leading to spalling, frost damage, and accelerated deterioration. For the vast majority of Surrey’s Victorian, Edwardian, and Georgian properties, lime is the only correct choice.

If your property is a listed building, you will typically need Listed Building Consent for any works that affect its character – and this includes repointing and stone repairs, even where those repairs are necessary maintenance rather than alterations. The key question is whether the work would affect the special interest of the building. Routine like-for-like repairs using appropriate materials are often straightforward to consent, but it is always worth checking before starting. Properties in conservation areas – of which there are several across our service area in Weybridge, Esher, and parts of Walton – may also have additional restrictions. We are experienced in navigating these requirements and can assist with applications and heritage officer liaison where needed.

Accurate material matching is fundamental to good stonemasonry – a repair that stands out visually is a failed repair, regardless of how structurally sound it is. We start by analysing the existing stone and mortar carefully – looking at colour, texture, grain, and in the case of mortar, the aggregate type and lime content. We then source stone from the appropriate quarry or reclaimed source and prepare sample mortars on-site for approval before any work begins. Stone matching is particularly important on the local Surrey sandstone and the various imported stones used in historic Surrey buildings – we have experience sourcing from the relevant quarries and suppliers to achieve a close and convincing match.

Traditional stonemasonry cannot be rushed – and any contractor who suggests otherwise should be treated with caution. Lime mortars require substantially longer curing times than cement, typically 2-4 weeks depending on weather, temperature, and the specific mix used. During cold or wet conditions, lime work may need to be paused or protected. A smaller repointing project on a single elevation might take 1-2 weeks of actual work, with curing time extending the overall programme. More extensive stone restoration or bespoke feature work can run to several months on complex projects. We give you a realistic programme at the outset and build appropriate curing time into our schedules – we will never cut curing short to move on faster.

Yes – the repair and replacement of individual stone features is one of the most common stonemasonry jobs we carry out across Surrey. Window sills, door surrounds, steps, copings, and decorative details all suffer over time from weathering, frost damage, impact, and – very commonly – the effects of inappropriate cement mortar or sealants trapping moisture. Where the damage is localised, traditional repair techniques using hydraulic lime and matching aggregate can restore the appearance without full replacement. Where a feature is beyond repair, we cut and shape a replacement from matching stone, working from the surviving profile or from drawings if needed, and bed it in using the correct lime mortar. The goal is always for the repair to be invisible to anyone who was not there before it was done.

Properly executed traditional stonework with the correct lime mortars requires very little maintenance – which is one of its great advantages. Lime mortar is self-healing to a degree, naturally weather-resistant, and does not require the periodic resealing that cement-based repairs often need. We recommend periodic visual inspection – every few years is usually sufficient – to check for any vegetation growth in joints, signs of new cracking, or water management issues around the base of walls. Repointing may be needed every 50-100 years in exposed locations, less often in sheltered ones. We provide specific aftercare guidance on handover and are always available to give advice if something changes or concerns you.