Surrey · England
Window & door mastic in Tadworth, Surrey
Mastic around window and door frames, sills and patio doors for homes and businesses in Tadworth and across Surrey. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps left after new windows were fitted
- Gaps between the frame and the inside reveal
- Hard, cracked sealant around windows
Window mastic for homes and businesses in Tadworth
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on uPVC windows, composite doors and window sills, and the jobs we see most are a bead that doesn’t match the frame and water coming in at the bottom corners of a door.
Homes around Tadworth range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Tadworth (KT20, KT18)
- Region
- Surrey
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a morning for a couple of windows and a door, and the area is left clean. A visit to Tadworth is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First we look at every frame and agree the list.
- 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.
- We clear up and check every joint is fully closed.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
Getting a quote is simple: let us know the job and the location. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
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Places near Tadworth
Other services in Tadworth
When to call us in Tadworth
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
These are the problems we’re asked about most:
- Cracked or shrunken mastic around the frame
- A bead that doesn’t match the frame
- Gaps left after new windows were fitted
- Cracked internal joints between frame and plaster
In the older streets around Church of the Good Shepherd, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- How much experience the applicator has
- What preparation is included
- What the quote includes, VAT included or not
- Whether they’re fully insured
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
What we cannot put right
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- A door that needs adjusting, rehanging or new seals
- Rotten timber, which needs a joiner first
- Faulty window hardware
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
Surfaces we seal
- uPVC windows
- Timber windows & doors
- Aluminium frames
- Window sills
- Composite doors
- Patio & French doors
Windows and doors in Tadworth
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Fitznells Manor (about 3.9 miles north) are a reminder that the area around Tadworth has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Managing a site like Tadworth Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Tadworth station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Tadworth is about 3 miles south-east of Epsom, in Surrey. From the centre of Tadworth to the outskirts, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 395 towns and villages across Surrey. Our Crawley page covers work nearby.
We work across KT20 and KT18 for window mastic and the streets around it. That includes homes and businesses on Beatrice Square, High Street and Fairacres and the roads around them. If you are just outside Tadworth, we cover Kingswood (1 mile south-east), Walton on the Hill (1 mile south-west), Lower Kingswood (2 miles south-east), Headley (2 miles south-west) and Mogador (3 miles south). We also work in nearby towns such as Guildford (15 miles west), Woking (15 miles west), Epsom (3 miles north-west), Horley (9 miles south), Redhill (5 miles south-east) and Ewell (4 miles north).
Landmarks near Tadworth
In Tadworth, that means homes and buildings near The Beacon School, Merland Rise Recreational Ground and Inn on the Green, among other places. The nearest railway station is Tadworth station, roughly 0.5 miles south-west of the centre. A little further out are The Ashley Centre (2.9 miles north-west) and Headley Court (2 miles west). The countryside around Tadworth includes Colley Hill and Cuddington Meadows.
FAQs for Tadworth
Do you cover Tadworth for window mastic?
Yes, Tadworth 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, and we will send you a clear quote.
I let a flat near Tadworth station. Can you help?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
What does window mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before we start.
Can new window sealant be painted?
Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Can you match the sealant to my frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Do not use solvent cleaners on the joint
- Paint up to the joint, not over it
- Make sure the drainage slots are not blocked
- Check the mastic once a year
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just phone 0345 464 0079 or drop us an email.
Signs to watch for: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
Different surfaces, different methods
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.
What affects the cost of window mastic
Every job gets its own quote. These are the things that affect it:
- The old material and how stubborn it is
- The number of rooms or windows
- Access and height
- The product the joint needs
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To make quoting easier, please include:
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.