
Why Mastic Sealing Is Essential
Mastic sealing is a crucial component of any construction or refurbishment project. Correctly applied sealant:
- Prevents water ingress and damp issues
- Reduces air leakage for improved energy efficiency
- Accommodates structural and thermal movement
- Enhances the durability of windows, doors, and façades
- Provides a professional, clean finish
At GP Contracts, we use high-quality sealants and follow industry best practices to ensure each seal performs effectively for the life of the building.
Our Mastic Sealing Services in Stirling
We provide a full range of mastic sealing services tailored to the specific requirements of your project:
- Internal sealant applications – bathrooms, kitchens, wet rooms, sanitary areas, floor-to-wall junctions
- External sealant applications – façade joints, window and door perimeters, curtain walls, expansion joints
- Fire-rated sealants – compliant with building regulations
- Movement joints – accommodating thermal and structural expansion
- Cladding and precast concrete sealing – providing weatherproofing and structural protection
- Industrial and commercial sealant work – warehouses, offices, retail units
Each project is carefully assessed to select the appropriate sealant and application method, ensuring a durable, high-quality finish that meets both functional and aesthetic requirements.

Internal Mastic Sealing
Internal sealant applications require precision and attention to detail. GP Contracts delivers expert internal mastic sealing across Stirling for:
- Bathrooms and kitchens
- Wet rooms and shower areas
- Floor-to-wall junctions and skirting boards
- Sanitary areas in commercial and healthcare environments
- Clean, neat, and colour-matched finishes
Our team ensures all internal sealants are installed to exacting standards, providing both durability and visual appeal.
External Mastic Sealing
External sealing protects buildings from weather, movement, and structural stress. GP Contracts provides:
- Window and door frame perimeter sealing
- Expansion and contraction joint sealing
- Curtain wall and façade sealing
- Precast concrete and cladding sealing
- Durable, weather-resistant finishes suitable for Stirling’s climate
Our external mastic work prevents water ingress, protects structural elements, and reduces the need for costly remedial work.
Serving Stirling & Surrounding Areas
We provide specialist mastic sealing services throughout Stirling, including:
- Stirling city centre
- Bannockburn and Bridge of Allan
- Cambusbarron, Dunblane, and Plean
- Nearby commercial developments and residential projects
We work closely with contractors, developers, and property managers across Stirling and Central Scotland, delivering efficient, high-quality sealant services for projects of all sizes.

Why Choose GP Contracts in Stirling?
Clients across Stirling rely on GP Contracts because we provide:
- Specialist expertise in mastic sealing
- Experienced and fully trained applicators
- High-quality, branded sealant materials
- Precise, neat, and consistent finishes
- Compliance with UK building and safety regulations
- Flexible scheduling to meet project timelines
- Competitive pricing and free quotations
We understand that mastic sealing is often one of the final trades on a project, and we work efficiently to ensure smooth handovers and professional results.
Health, Safety & Quality Assurance
Safety and quality are at the core of our work. GP Contracts ensures:
- Proper joint preparation and backing rod installation
- Accurate selection of sealant type for each application
- Compliance with fire and building regulations
- Clean and safe working practices
- Post-installation inspection and quality control
Every seal applied by GP Contracts in Stirling is built to last, performing as intended while maintaining a professional, clean finish.

Award-Winning Contractors You Can Trust
We are an award-winning contractor and pride ourselves on our commitment to provide a professional and speedy service, whilst achieving the highest quality of work. Our aim is to meet and exceed our client’s expectations at all times.
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We were really pleased with Darren’s work and professionalism replacing the sealants in our bathroom and en suite. On time, great job and very tidy. Everything from initial enquiry to work being carried out went very smoothly. Would highly recommend.Deborah
Brilliant from start to finish. Externally sealed all our windows perfectly. Great communication throughout, friendly, clean and tidy. Wouldn't hesitate to recommend them.Rory Edwards
Marcus completed sealant installation around the house. The job was impeccable with great attention to detail.Highly recommend his work.Gillian Milne
We had GP Contracts strip and reseal our walk in shower. From first contact with Marcus to job completion, GP were great to deal with and the finished product is excellent. Highly recommendedChris Finnigan
Request a Mastic Sealing Quote in Stirling
If you are looking for a reliable mastic sealing contractor in Stirling, GP Contracts is ready to provide tailored solutions. Whether it’s internal sanitary sealants, external façade joints, or movement joints for commercial, residential, or construction projects, we deliver professional, precise, and long-lasting results.
Contact GP Contracts today to discuss your mastic sealing requirements in Stirling and request a free quotation.
















