East Sussex · England
Friston Window Mastic
Window and door frames in Friston need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Mastic that has split away from the wall
- Rushed sealant from a window installation
- Black, perished sealant on frames
Window mastic for homes and businesses in Friston
Over two decades of sealing frames has taught us which products suit which walls. We are ARBOMaster approved and fully insured, and we give a one-year guarantee on the work. We work on composite doors, uPVC windows and timber windows & doors, and people most often call us about draughty joints inside around the window and sealant in the wrong colour for the frame.
Many houses in smaller places like Friston have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
All of our work is guaranteed for twelve months.

- Where
- Friston (BN20)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
We will always be straight with you, so here’s what new sealant will not do:
- A door that needs adjusting, rehanging or new seals
- A sash or casement that will not close properly
- Penetrating damp from a failed cavity tray or render
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.
Surfaces we seal
- uPVC windows
- Timber windows & doors
- Patio & French doors
- Window sills
- Aluminium frames
- Composite doors
Friston questions
Do you cover smaller places like Friston?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is window mastic in a coastal place like Friston any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Does the work come with a guarantee?
Yes. Our one-year guarantee covers every job, inside or out.
How long does it take to reseal the windows on a house?
A few frames take a few hours. You will get a timescale with the quote.
Do you work for letting agents?
Yes. We work for householders, landlords, letting agents, businesses and hotels across East Sussex.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
Do you work on first-floor windows?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we will confirm what’s needed.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
What window mastic looks like in Friston
Friston is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. 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.
Homes close to The Parish Church of St Simon and St Jude include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Friston is about 4 miles south-west of Eastbourne, in East Sussex. Whether you’re in the middle of Friston or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. 289 places in East Sussex are on our list, from the larger towns to small villages. We also work in Brighton, around 16 miles away.
Jobs for window mastic in BN20 is quoted and booked the same way as anywhere else. Local streets include Dene Side, Dene Close and Michel Close, all of which we cover. If you’re just outside Friston, we cover East Dean (1 mile south-west), Birling Gap (1 mile south), Jevington (2 miles north), Old Town (3 miles east) and Meads (3 miles east). Further out, we also cover Eastbourne (4 miles north-east), Bexhill-on-Sea (13 miles north-east), Seaford (4 miles west), Lewes (12 miles north-west), Hailsham (7 miles north) and Uckfield (15 miles north).
What’s near Friston
In Friston, that means homes and buildings near The Tiger Inn, among other places. Friston’s nearest station is Eastbourne station, roughly 3.2 miles east of the centre. A little further out are Eastbourne District General Hospital (3 miles north-east) and Filching Manor And Motor Museum (3 miles north). For a walk, there’s Combe Hill.
How the job changes by surface
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.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the sealant goes in between frame and wall and tooled smooth.
What happens if it’s left?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. In an older home around Friston, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or email us.
Why us?
- 12-month guarantee on every job
- Domestic, commercial and hotel work
- We never seal over old sealant
- A sealant colour to suit the surroundings
Read our cost guide or customer reviews.
DIY sealant or a professional job?
If you’re 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 fails, we can still redo it.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
When to call us in Friston
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
Keep an eye out for these signs:
- Cracked internal joints between frame and plaster
- A bead that does not match the frame
- Leaking joints at the ends of sills
- Rushed sealant from a window installation
For landlords with property near Eastbourne station, renewing tired window mastic between tenants heads off draught and damp complaints.
What your quote should include
- What guarantee comes with the work
- Whether the sealant suits the joint
- What preparation is included
- Whether they seal over old material or remove it
How the visit works
We keep the work tidy and contained to the area we are working on. Expect the work to take a few hours for a few frames, or a day or more for a whole house, and we tell you how long to leave it before we go. A visit to Friston is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
- Let us know if you’ve seen damp or leaks
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or email us.
Read more
How we quote for window mastic
Call for a quick quote. What matters most is:
- The size of the job
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- The product the joint needs
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- Where the property is
- The type of property
- How we’d reach the joints
- Photos by email, if that is easy
Getting a quote is simple: tell us what needs doing and where. A few pictures by email make the job easier to understand.
