Surrey · England
Window Mastic in Walton-on-Thames
Window mastic for Walton-on-Thames and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Cracked sealant at the sill ends
- Old mastic that has gone black or come away
- Untidy mastic left by window fitters
Window mastic for homes and businesses in Walton-on-Thames
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you are dealing with gaps left after new windows were fitted and cold air getting in at the frame edge, we can put it right, whatever the surface.
In a town like Walton-on-Thames, the windows on the most exposed side of a house take the brunt of the rain, so the mastic there tends to fail first. It’s worth looking at every frame, not just the one that leaks.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Walton-on-Thames (KT12, KT13)
- Wider area
- Surrey
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Windows and doors in Walton-on-Thames
With historic houses such as The Homewood (about 2.5 miles south) nearby, there’s older building stock in the area around Walton-on-Thames 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 is traditional sand mastic. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near St John, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Walton-On-Thames station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you look after a building such as Walton Oak Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Walton-on-Thames is about 9 miles north-east of Woking, in Surrey. Walton-on-Thames gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 395 places in Surrey are on our list, from the larger towns to small villages. For nearby work, see our London page (16 miles or so).
All of KT12 and KT13 is within our area for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on High Street, Sidney Road and Stuart Avenue. Walton-on-Thames sits on or near the A244 and B365, so getting to you is simple. We also cover the places around Walton-on-Thames: Hersham (1 mile south), Shepperton (2 miles north-west), Burwood Park (2 miles south-west), Weybridge (2 miles south-west) and St George's Hill (2 miles south-west). Larger places within reach include Guildford (12 miles south-west), Woking (9 miles south-west), Camberley (14 miles west), Epsom (7 miles south-east), Redhill (14 miles south-east) and Ewell (7 miles east).
Landmarks near Walton-on-Thames
Around Walton-on-Thames, our work takes us to homes and buildings near RES Sixth Form College and Sunbury Park. Walton-on-Thames’s nearest station is Walton-On-Thames station, roughly 0.8 miles south of the centre. Well-known places in the area include Elmbridge Museum (2.2 miles south-east) and No. 2 New Zealand General Hospital (0.8 miles west). Not far away are Kempton Park Reservoirs and Ferris Meadow Lake.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Landlords and agents in Walton-on-Thames can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.
Quotes for window mastic in Walton-on-Thames
Every job gets its own quote. These are the things that affect it:
- The type of sealant required
- How many rooms, windows or areas are involved
- The size of the job
- Access and height
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or email us and we will talk you through it.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- Whether it has been sealed before
- Any access issues, like height or stairs
- Photos by email, if that’s easy
- The address or postcode of the job
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, ring 0345 464 0079 or drop us an email.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Keep jet washers away from the mastic
- Look round the frames every year or so
- Use gentle cleaners on frames and sealant
- Don’t use solvent cleaners on the joint
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
FAQs for Walton-on-Thames
Do you work for landlords with property near Walton-On-Thames station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Is Walton-on-Thames in your area for window mastic?
Yes, Walton-on-Thames is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Does the work come with a guarantee?
Yes. Our one-year guarantee covers every job.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you seal inside as well as outside?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we’re using and why.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Faulty window hardware
- Soft or decayed wood in the frame
- Condensation trapped between the panes
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Where we work in Walton-on-Thames
- Composite doors
- Patio & French doors
- Aluminium frames
- Window sills
- uPVC windows
- Timber windows & doors
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Leave it or put it right?
Not every sealant suits a window. Interior caulk and bathroom silicone aren’t made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Gaps in sealant and mould in the bead never get better on their own, and in a busy household in Walton-on-Thames they spread with every shower and every downpour. Replacing the sealant now is the simplest fix.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Why choose Mr Mastic in Walton-on-Thames
- Domestic, commercial and hotel work
- ARBOMaster approved applicator
- White, clear, grey or another colour, product permitting
- Anti-fungal sanitary silicone in wet areas
Take a look at our cost guide or our reviews.
Towns and villages near Walton-on-Thames
Also in Walton-on-Thames
How it works
We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. The job generally takes a few hours for a handful of frames, longer for a whole house, and we tell you how long to leave it before we go. In Walton-on-Thames, parking is rarely complicated, though it helps to know about driveways or restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Mention if the joints have been sealed before
- On commercial sites, let us know about site rules
Getting a quote
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand.