East Sussex · England
Window & door mastic in Upperton, East Sussex
Specialist window mastic for Upperton: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Draughty joints inside around the window
- Water coming in at the bottom corners of a door
- Sealant in the wrong colour for the frame
How we handle window mastic in Upperton
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on composite doors, patio & French doors and timber windows & doors, and people most often call us about water coming in at the bottom corners of a door and hard, cracked sealant around windows.
Houses in smaller places like Upperton can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. That is hard on the mastic around frames and sills.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Upperton (BN21, BN22, BN20)
- Region
- East Sussex
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Why act early in Upperton
Resealing frames is a short job: the visit takes anything from an hour or two to a full day, depending on how many frames there are. Leave it until water is coming in and you may need plastering and decorating as well. In an older home around Upperton, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why Upperton customers choose us
- You choose the colour before work begins
- Fully insured
- An ARBOMaster approved applicator
- One-year guarantee on every job
Read our cost guide and our reviews.
How we quote for window mastic
The quote reflects the job in front of us. We look at:
- Which sealant suits the joint
- Any working-time requirements on site
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Any access issues, like height or stairs
- The problem you’ve noticed
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Your questions about window mastic in Upperton
Is window mastic in a coastal place like Upperton any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do you work for landlords with property near Eastbourne station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
What should I tell you?
A short description and the location, plus photos if you have them. We will ask anything else we need to know.
Are you fully insured?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Can you do the inside joint as well?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.
Can you match the sealant to my frames?
Yes, in most cases. Mention the frame colour when you ask for a quote and we will match it as closely as we can.
Places near Upperton
What else we do in Upperton
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Faulty window hardware
- Penetrating damp from a failed cavity tray or render
- Condensation trapped between the panes
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Window sills
- Aluminium frames
- Composite doors
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Different surfaces, different methods
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
Windows and doors in Upperton
Upperton is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around window and door frames, especially on the side facing the sea. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Eastbourne station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For site and facilities teams at buildings such as St Thomas A Becket Catholic Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Upperton is about 1 mile south-west of Eastbourne, in East Sussex. Across the BN21 area, our applicators can take on window mastic. 289 places in East Sussex are on our list, large and small. You can also see our page for Brighton, roughly 18 miles from Upperton.
All of BN21, BN22 and BN20 is within our area for window mastic. If you need window mastic at a property on Love Lane, Hyde Road and York Road or anywhere close by, we can help. Upperton sits on or near the A2021 and A2040, so getting to you is simple. Other places close to Upperton include Old Town (1 mile west), Eastbourne (1 mile north-east), Meads (1 mile south), Holywell (1 mile south) and Ratton Village (2 miles north-west). Within a short drive, we also cover Hastings (14 miles north-east), Bexhill-on-Sea (10 miles north-east), Seaford (7 miles west), Lewes (14 miles north-west), Hailsham (6 miles north) and St Leonards (13 miles north-east).
Around Upperton
We work in homes and buildings around Gildredge House, WMG Academy for Young Engineers and The Rainbow pub. Upperton has its own railway station: Eastbourne station. Other landmarks nearby include Eastbourne District General Hospital (0.9 miles north-west) and Pevensey Castle (4 miles north-east). The countryside around Upperton includes Combe Hill.
How the visit works
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from an hour or two to a full day, depending on how many frames there are. In a smaller place like Upperton, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- 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.
How to prepare
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
Get a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Advice
Common problems we fix in Upperton
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. If the sealant can’t stretch, it splits.
Any of these means the joints need attention:
- Mastic that’s falling out in pieces
- Gaps between the frame and the inside reveal
- Cracked or shrunken mastic around the frame
- Cold air getting in at the frame edge
Homes close to Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- When the joint can take water or movement
- Is VAT in the price?
- How much experience the applicator has
- How the colour is chosen