Greater London · England
Window & door mastic in Thames View Estate, Greater London
Mastic around window and door frames, sills and patio doors for homes and businesses in Thames View Estate and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rain getting in at the frame or under the sill
- Sealant in the wrong colour for the frame
- Rushed sealant from a window installation
How we handle window mastic in Thames View Estate
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you have old mastic that has gone black or come away and cracked or shrunken mastic around the frame, we can help.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Thames View Estate as anywhere.
Your job is guaranteed for a year, as with all our work.
- Where
- Thames View Estate (IG11, RM9)
- Region
- Greater London
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
The process
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take most of a day for a typical house, less for a few frames. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Thames View Estate. It helps if you can point us to a visitor permit or a bay close to the door.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
How to prepare
- Keep children and pets away from the work area
- Move anything stored near the joints
- Try not to wet indoor joints just before the visit
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.
Related advice
Places near Thames View Estate
Other services in Thames View Estate
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Why deal with it now?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Thames View Estate, the repair is bigger than the sealant job would have been.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why book with us
- More than 20 years in sealant work
- Domestic, commercial and hotel work
- Rated 4.9 stars on Google
- Old sealant always removed completely
Read our cost guide or our reviews.
Thames View Estate homes and the weather
In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking. With historic houses such as Eastbury Manor House (about 0.5 miles north-west) nearby, there’s older building stock in the area around Thames View Estate as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Thames View Estate is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you look after a building such as Thames View Infants, its window and door frames need their mastic kept sound, just like a home’s.
Thames View Estate is about 1 mile south-east of Barking, in Greater London. Wherever you are in the IG11 postcode area, we can carry out window mastic at your property. Our Greater London coverage runs to 764 places, and Thames View Estate is one of them. You can also see our page for London, about 9 miles away.
Postcode districts we cover here for window mastic: IG11 and RM9. Window mastic is available to properties on Creek Road, Saxham Road and Minter Road and the roads around them. We also cover the places around Thames View Estate: Barking Riverside (1 mile south-east), Castle Green (1 mile north-east), Dagenham Dock (2 miles south-east), Dagenham Green (2 miles east) and Thamesmead (2 miles south-east). Larger places within reach include London (9 miles west), City of Westminster (11 miles west), Marylebone (11 miles west), Kensington (13 miles west), St Pancras (10 miles west) and Shoreditch (8 miles west).
Local landmarks in Thames View Estate
We work in homes and buildings around Riverside School and Mayesbrook Park. The closest station to Thames View Estate is Barking Riverside station, about 0.7 miles south-east. A little further out are Barking Community Hospital (0.8 miles north-west) and East End Women's Museum (1.4 miles west). For a walk, there’s Ripple Nature Reserve.
What the job involves on each surface
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.
Common problems we fix in Thames View Estate
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, so it comes away long before its time.
Keep an eye out for any of the following:
- Cold air getting in at the frame edge
- Gaps where the sill meets the wall
- Damp patches on the reveal after heavy rain
- A bead that doesn’t match the frame
Homes close to Christ Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before you book
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
- Whether you can choose the colour
- The length of the guarantee
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Aftercare tips
A little care helps the new joints last. Our advice:
- Keep timber frames painted
- Look round the frames every year or so
- Clean frames with a soft cloth and soapy water
- Wipe condensation off the frames
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
FAQs for Thames View Estate
I let a flat near Barking Riverside station. Can you help?
Yes. We work for landlords and agents as well as householders. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Can you do window mastic in Thames View Estate?
Yes. Our work covers London and the South East, and Thames View Estate is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.
Can you quote for more than one area?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Can you seal the gap between the frame and the plaster indoors?
Yes. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
Do you have sealant for grey or black windows?
Yes, in most cases. Tell us the frame colour when you get in touch and we will match it as closely as we can.
Is the work guaranteed?
Yes. Our 12-month guarantee covers every job.