Surrey · England
Window & door mastic in Ewell, Surrey
Problem with your window and door frames in Ewell? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Damp patches on the reveal after heavy rain
- Draughty joints inside around the window
- Sealant in the wrong colour for the frame
Work for landlords, hotels and businesses
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.
We work for letting agents and landlords as well as householders. Resealing between tenancies keeps a property looking cared for.
How we handle window mastic in Ewell
The new joint doesn’t have to be white. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. Common call-outs are for old mastic that has gone black or come away and cracked sealant at the sill ends, on patio & French doors, window sills and composite doors.
Ewell mixes older streets, where windows have often been replaced, with newer estates fitted with uPVC. All of them depend on a sound bead of mastic between frame and wall.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or send us an email.
- Location
- Ewell (KT19, KT17, SM2)
- Wider area
- Surrey
- Cover
- A year, on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Clear any debris from frame drain holes
- Keep jet washers away from the mastic
- Ventilate rooms so frames do not stay wet inside
- Keep timber frames painted
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
How the job changes by surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. We prepare and reseal every joint, backing the deep ones.
Composite doors
Front doors take the weather head on. Those corners get the most care.
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Ewell: your questions answered
Can you do window mastic in Ewell?
Yes, Ewell is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Is window mastic in Ewell guaranteed?
All our work, in Ewell and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Can you reach windows above the ground floor?
Yes, if safe access is possible. For high or awkward windows, we will tell you what access is needed.
Can new window sealant be painted?
Most silicone can’t be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
I rent my home. Can I book you?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Can you seal the gap between the frame and the plaster indoors?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
Windows and doors in Ewell
Historic houses like Fitznells Manor (about 0.2 miles south-east) are a reminder that the area around Ewell has older buildings as well as new. 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. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as St Clement's Catholic Primary School, its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as St Mary's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Ewell is about 10 miles south of Kensington, in Surrey. Every kind of property in Ewell is covered for window mastic, old or new, large or small. The work is guaranteed for a year. Across Surrey, we cover 395 places, Ewell among them. London is on our list too, about 12 miles from Ewell.
We cover every part of KT19, KT17 and SM2 for window mastic and the streets around it. Whether your property is on London Road, High Street and Church Road or anywhere close by, we can help. Ewell is on the A24 and A232, which makes it straightforward to reach with everything needed for window mastic. Other places close to Ewell include Stoneleigh (1 mile north-east), Cuddington (1 mile east), Epsom (1 mile south-west), Worcester Park (1 mile north) and North Looe (1 mile south-east). Within a short drive, we also cover Woking (14 miles west), Horley (13 miles south), Redhill (9 miles south-east), Egham (14 miles north-west), Reigate (8 miles south) and Walton-on-Thames (7 miles west). Being one of Surrey’s larger places, Ewell has every kind of property, from flats to offices.
Landmarks near Ewell
We work in homes and buildings around Blenheim High School, King William IV Public House and Hogsmill LNR, among other places. There’s a railway station in Ewell itself: Ewell West station. Well-known places in the area include Chessington Castle Hill (1.6 miles west) and St. Ebba's Hospital (0.9 miles west). Green spaces nearby include Tolworth Court Farm Fields and The Lake.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a few frames, or a day or more for a whole house. Parking in a town like Ewell is usually straightforward, but tell us if there’s a driveway or any restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Advice
Nearby places to Ewell
What else we do in Ewell
Why it’s worth doing now in Ewell
Draughts and leaks don’t always mean new windows. If the frames and glass are in good order, resealing the joints is often all that’s needed. Problems with the glass or gaskets are for a window company, and we’ll say so. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and early is when they’re cheapest and quickest to sort.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start.
Why book with us
- A choice of colours where the product allows
- Quality sealants from Arbo and Everbuild
- Old sealant always removed completely
- Anti-fungal silicone where joints get wet
Take a look at how sealant jobs are priced and what customers say.
When to call us in Ewell
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.
These are the problems we are asked about most:
- Gaps left after new windows were fitted
- Leaking joints at the ends of sills
- Sealant in the wrong colour for the frame
- Mastic that has split away from the wall
Rented homes near Ewell West station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- Which sealant they’ll use, and why
- Whether you can choose the colour
- What the cure time is
- Whether all the old sealant comes out first