Our specialist services for timber frame buildings include:
We work with homeowners, architects, conservation specialists and building contractors throughout Worcestershire, Gloucestershire, Herefordshire, Warwickshire, Shropshire, the West Midlands and surrounding counties.
Powys is home to a wealth of traditional Welsh farmhouses, timber-framed buildings, rural cottages and historic properties. Many of these homes were built using natural materials that have allowed them to stand for centuries, but maintaining and improving their energy efficiency requires a specialist approach. Choosing breathable insulation and lime render systems helps protect the original construction while creating a warmer, healthier and more comfortable home.
We specialise in breathable External Wall Insulation (EWI), insulated lime render systems and traditional lime solutions for timber frame buildings throughout Powys. Every installation is carefully designed around your property's original construction, allowing moisture to move naturally through the walls while significantly improving thermal performance.
Whether your property is located in Welshpool, Newtown, Brecon, Llandrindod Wells, Hay-on-Wye or one of Powys' many rural communities, we can recommend a breathable wall system tailored to your property's construction and long-term performance.




Powys contains some of Wales' finest traditional rural buildings. Many were constructed using timber frames, local stone, lime mortars and breathable finishes that naturally regulate moisture throughout the year.
Unlike modern cavity wall buildings, these properties depend on breathable materials to remain healthy. When impermeable products such as cement render or unsuitable insulation systems are introduced, moisture can become trapped within the walls, increasing the risk of damp, condensation and deterioration of the timber structure.
Breathable External Wall Insulation offers a sympathetic solution. By combining vapour-permeable insulation with compatible lime render systems, we improve thermal performance while allowing traditional buildings to continue breathing naturally.
Every property is individually assessed before work begins so we can recommend the most suitable breathable wall system for its construction, age and condition.


Powys is characterised by its rolling countryside, upland farms and historic villages. Across the county you'll find traditional Welsh longhouses, timber-framed cottages, converted agricultural buildings and rural farmhouses that continue to reflect centuries of local craftsmanship.
Areas including Brecon, Welshpool, Newtown, Llandrindod Wells, Hay-on-Wye, Montgomery and Llanfair Caereinion all contain traditional buildings that rely on breathable construction methods to regulate moisture naturally.
Many of these homes were built long before modern insulation products existed. Their continued performance depends on using compatible breathable materials whenever renovation or insulation work is carried out.
By carefully assessing each building before recommending a solution, we help homeowners improve comfort, reduce heat loss and protect the long-term health of their property.
Traditional timber frame buildings often lose heat through their external walls. Breathable External Wall Insulation provides an effective way of improving energy efficiency without preventing the building from regulating moisture naturally.
Unlike internal insulation, External Wall Insulation forms a continuous insulated layer around the outside of the property. This reduces cold bridging, improves thermal performance and maintains valuable internal living space.
Every insulation system is individually specified following a detailed survey, ensuring the insulation, breathable render and installation method are appropriate for your property's construction and long-term performance.
Choosing the right render system is essential when improving a traditional timber frame building. Many of Powys' older homes were originally built using breathable lime mortars and renders that allow moisture to move naturally through the walls.
Replacing these materials with cement render or other impermeable finishes can restrict this natural movement, increasing the risk of trapped moisture, condensation and deterioration of the timber frame over time.
For many traditional Welsh properties, breathable lime render provides a more sympathetic solution. It works alongside breathable insulation systems, helping to protect the building while allowing it to continue performing as originally intended.
Every timber frame building is unique. Following a detailed survey, we'll recommend the most suitable breathable wall system based on your property's construction, condition and long-term performance.
Powys is Wales' largest county and is home to an outstanding collection of traditional rural buildings. From Welsh longhouses and timber-framed cottages to converted barns and historic farmhouses, many properties still rely on breathable construction methods that have protected them for generations.
Historic towns including Brecon, Welshpool, Newtown, Llandrindod Wells, Hay-on-Wye, Montgomery, Llanfair Caereinion and Machynlleth all contain traditional buildings, while the surrounding countryside is filled with rural homes built using local timber, stone and lime-based materials.
These buildings were designed to regulate moisture naturally. Introducing impermeable products during renovation can affect this balance, making it important to choose insulation and render systems that work sympathetically with the original construction.
Every property is individually assessed before work begins so we can recommend the most appropriate breathable insulation and lime render system for your home.
Traditional buildings throughout Powys vary considerably in age, construction and condition. Some require the removal of inappropriate modern materials before insulation can be installed, while others simply benefit from a carefully designed breathable wall system.
Following a detailed survey, we specify the most appropriate insulation and lime render system for the individual building. This approach improves thermal performance while allowing moisture to continue moving naturally through the wall, helping to protect the timber frame and preserve the building's long-term health.
As we complete future projects in Powys, this section will be updated with genuine local case studies and photography.
We provide specialist timber frame external wall insulation throughout Powys, covering towns, villages and rural communities across the county.
Don't See Your Area?
If your property is elsewhere in Powys, please get in touch. We regularly travel throughout the county and are happy to discuss projects involving traditional timber frame buildings, listed homes and heritage properties.













Every timber frame building is different, so every project begins with a detailed survey before we recommend the most appropriate breathable wall system.
Property Survey
We inspect the building's construction, identify existing finishes and assess how moisture currently moves through the walls.
System Specification
We recommend the most suitable breathable insulation, lime render and installation method based on your property's age, construction and condition.
Professional Installation
Our experienced team installs the system using approved breathable materials and recognised installation methods, paying close attention to traditional construction details and weatherproofing.
Final Inspection
Every installation is carefully inspected before completion to ensure it meets our standards and the manufacturer's specification. Where applicable, qualifying systems are supported by manufacturer warranties and insurance-backed guarantees.
Traditional Welsh timber frame buildings deserve solutions that work with their original construction, not against it. Choosing breathable external wall insulation and compatible lime render systems can improve your home's energy efficiency while helping to preserve the character and structural integrity of the building for years to come.
Whether you own a Welsh longhouse near Brecon, a rural farmhouse outside Welshpool, a listed cottage in Hay-on-Wye or a timber-framed property elsewhere in Powys, we'll recommend a breathable wall system that's tailored to your property's age, construction and long-term performance.
If you're looking for specialist timber frame external wall insulation in Powys, contact us today to arrange a free, no-obligation survey. We'll assess your property, answer your questions and recommend the most appropriate breathable solution for your home.

Not normally one for doing reviews but Steve managed to squeeze my job in so I could make use of the green homes scheme before it closed and the job they did is spot on. From start to finish, very pleased from the office to the guys carrying out the work.
WP Rendering have just completed a beautiful job on the rear of our new farm house. The work has been done to a very high standard by a qualified hard working team, leaving the site clean and tidy, I can not recommend them highly enough. A very satisfactory job.
Thanks for everything guys! we are so pleased. communication was great, and the finished piece was even better than we expected! would highly recommend this this company! Thanks Steve.
This is the second time my family have used this company now and they’ve never let us down! Excellent service! Great communication! I couldn’t recommend them enough.
Very pleased with the insulated render, our home is now warmer and looks great from the outside.
Steve’s team of three led by Simon have a work ethic second to none, they are very hard-working, polite and cleared up every day. The project was completed quickly, only being constrained by the short daylight hours and occasional rain in January. By its nature the work is messy at times but the house and surrounding ground were well covered and left clean and tidy when the work was finished.
Excellent job done of rendering top half of house with thermal no maintenance render. The team that carried out the work cannot be faulted, very hard working, answered any queries and cleared paths etc when they went home every day. As with any building work, expect a little mess but it was kept to a minimum. The only downside is that having the work done in the wetter months causes delays – absolutely no fault of WP Rendering.
Thanks so much for doing an amazing job of the render of our house, it’s made a huge difference we couldn’t be happier. Great team of guys working on it & they did a great job protecting our patio & left the place immaculate. Would highly recommend.
The whole job ran smoothly from start to finish possibly due to the influence of the boss Steve. I would and have recommended WP to anyone I know looking for a rendering job, the 4 guys were polite, professional and I couldn’t fault their work ethic. The finished product I can’t fault and when the team left site they left everything clean and tidy. The team Carlos,Pedro,Nelson and Antonio couldn’t do enough to help and they battled on through all weathers.
Excellent, fast friendly service. Great job with a professional tidy team! Went above and beyond including doing small jobs that weren’t anything to do with them! Really could not get a better company! Would recommend to anyone!