East Sussex · England
Dallington Window Mastic
Window mastic for Dallington and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Water coming in at the bottom corners of a door
- Untidy mastic left by window fitters
- Sealant in the wrong colour for the frame
Work for landlords, hotels and businesses
For anyone letting property in or around Dallington, several properties can go on one quote. Send us the addresses and the work at each.
Letting agents and landlords in Dallington can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Window mastic for homes and businesses in Dallington
Homes in Dallington have every kind of window: uPVC, aluminium, timber and composite, plus patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. If you’re dealing with water coming in at the bottom corners of a door and cold air getting in at the frame edge, we can help, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Dallington is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- Dallington (TN21)
- Wider area
- East Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Dallington
Other services in Dallington
Your questions about window mastic in Dallington
Is there a guarantee on window mastic in Dallington?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Is Dallington in your area for window mastic?
Yes, Dallington is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
How long will my window job take?
That depends on the number of frames, how they’re reached and the state of the old mastic. We’ll tell you how long your job needs when we quote.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Do you work on first-floor windows?
Yes, in most cases. We plan safe access before the job, so mention the height and anything in the way.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Where are you based?
We work from Crawley. Our applicators cover Dallington, along with the rest of our area.
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Window mastic in Dallington: local notes
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Bateman's (about 3.1 miles north) are a reminder that the area around Dallington has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Dallington Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s. Homes close to The Parish Church of St Giles include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Dallington is about 7 miles north-east of Hailsham, in East Sussex. Anywhere in TN21, our applicators can take on window mastic. Our area takes in 289 places across East Sussex. You can also see our page for Brighton, about 23 miles away.
Work in TN21 works the same way as everywhere else we cover. Neighbouring places we cover for window mastic include Wood's Corner (1 mile east), Rushlake Green (2 miles west), Punnett's Town (2 miles north-west), Brownbread Street (3 miles south-east) and Burwash Common (3 miles north). Further out, we also cover Eastbourne (12 miles south), Hastings (10 miles south-east), Bexhill-on-Sea (8 miles south-east), Hailsham (7 miles south-west), Crowborough (11 miles north-west) and St Leonards (11 miles south-east).
What’s near Dallington
Well-known places in the area include Old Castle (less than half a mile west) and Hellingly Hospital (5.6 miles south-west).
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Penetrating damp from a failed cavity tray or render
- Draughts through the window seals rather than the frame
- A failed sealed unit that has misted up
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before booking.
Surfaces we seal
- Aluminium frames
- Patio & French doors
- Composite doors
- Window sills
- Timber windows & doors
- uPVC windows
Why it’s worth doing now in Dallington
Draughts and leaks do not always mean new windows. Where the frames are sound, new mastic generally deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we’ll say so. Where a wall is exposed, as many are in small places like Dallington, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- 20+ years of sealant experience
- Experience in homes, commercial sites and hotels
- ARBOMaster approved applicator
- Colour agreed with you before any work starts
Read what affects the cost or customer reviews.
What affects the cost of window mastic
Your quote is based on your job. We take into account:
- How many areas need sealing
- Any mould that needs treating
- The number and length of the joints
- When we can work, for business premises
What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
When you call or email, it’s useful to know:
- How we’d reach the joints
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
We do not publish a price list. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.
How it works
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes most of a day for a typical house, less for a few frames. For a village or hamlet like Dallington, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Keep children and pets away from the work area
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
Ask for a quote
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand, and we will come back to you with a quote.
Related advice
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Wash the frames with mild soapy water
- Ventilate rooms so frames do not stay wet inside
- Keep drainage slots and sill grooves clear
- Walk round the house once a year and look at the joints
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.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.