Business Details
25 Years
experience
Trusted Lime Mortars & Building Conservation Materials
Established in 2001, Conserv specialises in supplying high-quality lime-based construction materials crafted to meet both traditional and modern building needs. Our product range includes hydraulic and non-hydraulic lime mortars, plasters, renders, and stone repair solutions, all engineered to British and European standards. With CE-certified products and adherence to CPR 2013 regulations, we combine heritage techniques with contemporary performance. Our materials, such as hot-mixed lime mortars and breathable paints, cater to conservation projects and new builds alike. We offer expert technical advice, detailed product guides, and practical tools to support professionals and DIY enthusiasts.Sustainability is central to our ethos, with eco-friendly options like coir reinforcement and recycled construction materials. Our calculators simplify project planning, while our global distribution ensures accessibility. Backed by decades of industry experience, we prioritise durability, breathability, and aesthetic authenticity. Our commitment to quality is reflected in partnerships with trusted manufacturers and rigorous in-house standards. Whether repairing historic structures or constructing energy-efficient buildings, we provide solutions that harmonise tradition with innovation.
Services
Lime Mortar
Lime Plaster
Stone Repair Mortar
Breathable Paint
Masonry Tools
Details
- Year established: 2001
Highlights and features
- We offer CE-certified lime products engineered to BS EN standards.
- Our team provides expert technical guidance for conservation and modern builds.
- Competitive pricing on natural hydraulic lime and pre-prepared mortars.
- Comprehensive range includes tools, calculators, and sustainability-focused solutions.
- Decades of experience supporting heritage projects and construction professionals.
Associations and certifications
- CE Certified
- CPR 2013
Services
Hydraulic Lime Mortar
Hydraulic lime mortar combines traditional breathability with modern durability. Ideal for external masonry, it sets faster than non-hydraulic alternatives while maintaining flexibility. CE-certified products meet BS EN 998-2:2016 standards for structural integrity and weather resistance.
Lime Plaster
Lime plaster systems regulate moisture in walls and ceilings. Available in hydraulic and non-hydraulic formulations, they prevent trapped damp while preserving historic building fabric. Traditional three-coat systems use natural goat hair reinforcement for enhanced strength.
Stone Repair Mortar
Stone repair mortar matches original masonry characteristics for conservation work. Formulated to align with UK quarry stone colours, it ensures sympathetic repairs to historic facades without compromising structural integrity or aesthetic continuity.
Breathable Paint
Silicate and clay-based paints maintain wall breathability in lime-rendered buildings. These VOC-free coatings resist mould growth and fading, offering durable finishes that complement traditional construction methods while meeting modern environmental standards.
Masonry Tools
Specialist tools support professional lime mortar application. From Marshalltown trowels to hessian sheeting, equipment ensures correct technique execution. Products balance durability with precision, aiding both conservation specialists and contemporary builders in achieving optimal results.
Questions
What is hydraulic lime mortar used for?
Hydraulic lime mortar suits external masonry requiring weather resistance. It sets faster than non-hydraulic alternatives while maintaining breathability, ideal for repointing and structural repairs in exposed conditions.
Can I use lime plaster on ceilings?
Non-hydraulic lime plaster works well on ceilings when combined with traditional lath and goat hair reinforcement. Its sticky consistency bonds effectively to overhead surfaces during multi-coat applications.
How do I choose between NHL 3.5 and NHL 5?
NHL 3.5 suits general masonry work, while NHL 5 is recommended for dense stone in severe weather. Both meet BS EN 998-2:2016 standards but differ in compressive strength and curing characteristics.
What is hot mixed lime mortar?
Hot mixed lime mortar uses quicklime and sand for a lime-rich formulation. Traditional in historic buildings, it offers superior flexibility and compatibility with soft masonry during conservation projects.
Do you supply tools for lime mortar application?
We offer complete toolkits including pointing trowels, hawks, and protective sheeting. Marshalltown and Faithfull branded equipment ensures correct application techniques for both professionals and DIY users.
How are stone repair mortars colour-matched?
Our stone repair range matches UK quarry stone hues like Bath Stone and York Stone. Colour charts and sample comparisons help select mortars that visually integrate with existing masonry during conservation work.
