Eltham & Welling, South East London
Mastic Sealant Specialist in Eltham & Welling
Sharp lines, mould-resistant silicone and a finish that lasts. The Mastic King covers Eltham, Welling and the surrounding SE9–DA16 postcodes — same-day visits available.
Eltham and Welling sit between Bromley and Dartford in South East London, and we're in the area regularly as a natural extension of our Bromley and Dartford coverage. We cover SE9 and DA16, including Eltham town centre, Welling, Falconwood, Shooters Hill and the surrounding areas. Eltham and Welling have a mix of 1930s semis, post-war estates and more recent developments. The 1930s housing stock is particularly common in this area, and these properties typically have bathrooms where the silicone has been applied multiple times over the years without ever being properly stripped back. We remove everything down to bare surface and start fresh every time. Beyond bathrooms, we carry out kitchen worktop sealing, shower enclosure resealing, window frame mastic and LVT flooring edge sealing across the SE9 and DA16 area. Letting agents and landlords in Eltham and Welling use us regularly for end-of-tenancy refreshes. Our coverage of SE9 and DA16 connects our Bromley and Dartford areas, meaning we're well placed to serve the whole corridor between South East London and North Kent.
Why Eltham & Welling homeowners choose The Mastic King
- Regular coverage across Eltham, Welling and all SE9–DA16 postcodes
- Experienced with 1930s and post-war housing stock common across the area
- Full silicone removal before every reseal — no overlap on old sealant, ever
- Razor-sharp finish using premium mould-resistant silicone
- Trusted by homeowners and landlords across Falconwood, Shooters Hill and Welling
- Fully insured with a satisfaction guarantee on every job
Services available in Eltham & Welling
- Bathroom resealing — bath panels, basins, shower trays and tile-to-tile joints
- Shower enclosure and wet room silicone replacement
- Kitchen worktop, sink and splashback sealing — including granite and quartz surfaces
- Window and door frame mastic for uPVC and timber frames
- LVT and vinyl flooring edge and perimeter sealing
- Letting agent and landlord maintenance packages
Covering SE9, DA16 and all surrounding areas including Eltham, Welling, Falconwood, Shooters Hill and New Eltham.
Frequently asked questions — Eltham & Welling
How quickly can you get to Eltham?
We cover Eltham and Welling regularly and can usually offer a same-day or next-day visit. Call or WhatsApp us and we'll confirm a time that suits you.
Do you remove the old silicone before applying new sealant?
Always. We fully strip the old silicone, clean and dry the surfaces, then apply fresh mould-resistant sealant. Applying new silicone over old is a shortcut we never take.
Do you cover Falconwood and Shooters Hill?
Yes — we cover Falconwood, Shooters Hill, New Eltham, Welling and all surrounding SE9 and DA16 postcodes.
Are you insured?
Yes — fully insured for public liability. You're in safe hands.
Do you work with landlords in Eltham and Welling?
Yes — we carry out end-of-tenancy reseals and planned maintenance for a number of landlords and letting agents across the SE9 and DA16 postcodes.
Ready to book in Eltham or Welling?
WhatsApp us a photo and we'll give you a quote within the hour.