Greater London · England
Window & door mastic in Earlsfield, Greater London
Window and door frames in Earlsfield need attention? We remove the old material, prepare the joints and seal them properly.
- Cracked sealant at the sill ends
- Draughty joints inside around the window
- Rain getting in at the frame or under the sill
About our window mastic in Earlsfield
Over two decades of sealing frames has taught us which products suit which walls. We’re fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. If you are dealing with cold air getting in at the frame edge and hard, cracked sealant around windows, we can put it right, on patio & French doors, aluminium frames and uPVC windows alike.
London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease generally says who is responsible for the windows, so it’s worth checking before booking, and access in Earlsfield is something to talk through when you book.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Location
- Earlsfield (SW18, SW17, SW19)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
FAQs for Earlsfield
Do you work for landlords with property near Earlsfield station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Is parking an issue for window mastic in Earlsfield?
Parking in Earlsfield, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
Is the work guaranteed?
Yes, with our 12-month guarantee. A yearly look at the joints helps them last.
Do you cover Earlsfield?
Yes. We work in Earlsfield, as part of our work across South East England, London and Scotland. To book, call 0345 464 0079 or drop us an email.
Is there any odour?
Sometimes, a little. It fades as the sealant cures.
Can new sealant go over the old?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Where are you based?
We’re based in Crawley, and we work across South East England, London and Scotland.
Can you quote for more than one area?
Yes. Just list everything you need.
What happens on the day
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a handful of frames, longer for a whole house. For a job in Earlsfield, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
How to get a quote
Getting a quote is simple: let us know what needs doing and where. A few pictures by email make the job easier to understand.
Read more
Common problems we fix in Earlsfield
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid can’t stretch. That is what backing rod is for.
The problems people usually mention when they call include:
- Cracked sealant at the sill ends
- Water coming in at the bottom corners of a door
- Hard, cracked sealant around windows
- A bead that does not match the frame
Letting a property close to Earlsfield station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- Is the old sealant removed completely?
- What guarantee comes with the work
- What preparation is included
- What happens if the job turns out different
How to look after the new joints
A little care helps the new joints last. We recommend:
- Clean frames with a soft cloth and soapy water
- Don’t aim a pressure washer at the joints
- Paint up to the joint, not over it
- Repaint timber before it’s bare
Most silicone sealants won’t take paint, so mention any painting plans before any work starts. There are paintable sealants for joints that need it.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Quotes for window mastic in Earlsfield
Jobs vary more than people expect. The main factors:
- How many rooms, windows or areas are involved
- When we can work, for business premises
- The product the joint needs
- Any mould that needs treating
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- A few pictures by email, if you can
- Where the property is
- Whether it has been sealed before
- The type of property
For a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Different surfaces, different methods
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Also near Earlsfield
More services for Earlsfield
When something else is needed
To be straight with you, there are a few things sealant will not fix:
- Damp coming through the wall itself rather than the frame joint
- A frame that has rotted at the joint
- Broken hinges, locks or handles
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Timber windows & doors
- Composite doors
- Window sills
- Patio & French doors
- Aluminium frames
- uPVC windows
Frames and glazing around Earlsfield
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before you book.
If you live in an older home near St John the Divine, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as Beatrix Potter Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Earlsfield is about 2 miles north-east of Wimbledon, in Greater London. Jobs in Earlsfield get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Greater London, we cover 764 places, and Earlsfield is one of them.
Jobs for window mastic in SW18, SW17 and SW19 works the same way as everywhere else we cover. Window mastic is available to properties on Burr Road, Acuba Road and Mount Road. Nearby, we also carry out window mastic in Southfields (1 mile north-west), Summerstown (1 mile south), Wandsworth (1 mile north), Tooting Bec (1 mile south-east) and Tooting (1 mile south-east). Larger places within reach include London (5 miles north-east), City of Westminster (5 miles north), Marylebone (5 miles north), Kensington (4 miles north), St Pancras (6 miles north-east) and Shoreditch (7 miles north-east).
Around Earlsfield
Typical jobs here are in homes near Hillcroft School, Southfields Academy and Leather Bottle pub, among other places. There’s a railway station in Earlsfield itself: Earlsfield station. A little further out are Southside Wandsworth (0.8 miles north-west) and St James' Hospital (1 mile east). Green spaces nearby include Battersea Park Lake and Wandle Meadow Nature Park.