Mastic Sealant Services in London
Alfa Quality Construction provides mastic sealant services in London for residential, commercial and industrial properties. We carry out new sealant application and replacement around bathrooms, kitchens, windows, doors and building joints.
We review the surfaces, joint condition and intended use to select a suitable sealant and agree the finish, including for property maintenance and refurbishment projects. For more information on joint preparation and sealant applications, see Sika’s joint sealing guidance.
Call 07443 699 512 to discuss the work and request a free quote. Send your postcode, photographs and approximate joint lengths.
Surface Preparation: We review the joint and prepare suitable surfaces before application, including removing failed sealant where replacement is needed.
Suitable Sealants: Product choice takes account of the surface, expected movement, moisture exposure and location, with the manufacturer’s guidance followed for the application.
Neat Finishes: Joint lines, sealant colour and visible finishes are discussed before work starts, with product and colour availability confirmed for the job.
Different Property Types: We undertake sealing work for homes, commercial premises and industrial buildings, with access and work arrangements agreed around the property and its occupants.
Clear Quotes: We confirm the areas to be sealed, preparation work and costs before starting, and discuss any additional repairs or requirements with you.
Bathrooms and Kitchens: Silicone sealing around baths, shower trays, basins, sinks and worktops, with products selected for the surfaces and wet area conditions.
Windows and Doors: Perimeter sealing around compatible window and door frames, with the joint condition, surrounding materials and exposure reviewed before application.
External Building Joints: Sealing suitable external and movement joints, with the sealant selected around the joint design, expected movement and weather exposure.
Sealant Replacement: Removal of failed sealant, joint preparation and new application, with any damaged surfaces or additional repairs discussed before resealing.
Our Mastic Sealant Process:
First Call: Share your postcode, photographs, the areas to be sealed and approximate joint lengths, including any preferred sealant colour.
Review and Quote: We review the surfaces, existing sealant, joint sizes and access before agreeing the work, suitable products and price.
Preparation and Application: We remove failed sealant where required, prepare the surfaces and apply the agreed product in line with the manufacturer’s instructions.
Finish and Aftercare: We check the finish and explain the product’s curing time, when the area can be used and how to care for the sealant.