Top Cob Repair Tips for Your Historic Home
- peterbroom4
- Mar 27
- 2 min read
Updated: Jun 27

Are you the proud owner of a historic home with cob walls that are showing signs of wear and tear? Cob construction, a traditional building method using a mixture of clay, sand, straw, and water, can require special care and maintenance to ensure its longevity. If you're in need of expert advice on cob repair, look no further than Peter Broom Construction in Ottery St Mary, Devon.

With over two decades of experience in the building industry, Peter Broom Construction offers specialized services tailored to preserving and restoring historic cob structures. Whether you're dealing with cracks, erosion, or crumbling cob walls, here are some top tips to keep in mind when it comes to repairing your precious piece of history:
Assess the Damage: Before beginning any repair work, it's crucial to assess the extent of the damage to your cob walls. Look for areas where the cob is crumbling, cracking, or eroding, as these will require special attention during the repair process.
Use Traditional Materials: When it comes to cob repair, sticking to traditional materials such as lime mortar is key. Lime mortar is breathable and flexible, allowing the cob walls to move and shift without causing further damage.
Mix the Right Consistency: When mixing your repair materials, aim for a consistency that is not too wet or too dry. The ideal mixture should be workable and easy to mold, ensuring a strong bond with the existing cob walls.
Tamp and Compact: When applying the repair materials to your cob walls, make sure to tamp and compact the mixture thoroughly. This will help eliminate air pockets and create a solid, sturdy repair.
Allow for Proper Drying Time: Patience is key when it comes to cob repair. Allow an ample amount of time for the repair materials to dry and cure properly before applying any finishes or coatings.
Seek Professional Help: While some minor cob repairs can be tackled as a DIY project, complex or extensive damage may require the expertise of a professional cob repair specialist like Peter Broom Construction. Their vast experience and knowledge in working with historic cob structures can ensure a proper and lasting repair. Preserving the beauty and integrity of your historic cob home requires careful attention to detail and a commitment to using the right techniques and materials. By following these top cob repair tips and enlisting the help of a trusted professional like Peter Broom Construction, you can help ensure that your historic home stands strong for generations to come.
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