East Sussex · England
Window Mastic in Three Oaks
Window mastic in Three Oaks from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Old mastic that has gone black or come away
- Gaps between the frame and the inside reveal
- Whistling draughts around closed windows
Window mastic in Three Oaks
Most frames have an outside joint and an inside one. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. We’re often asked to deal with white mastic on grey or black frames and cracked sealant at the sill ends, on composite doors, patio & French doors and timber windows & doors.
In a village or hamlet like Three Oaks, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Three Oaks (TN35)
- Wider area
- East Sussex
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Aftercare is simple:
- Clear any debris from frame drain holes
- Paint up to the joint, not over it
- Keep solvents and bleach off the sealant
- Wipe condensation off the frames
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just call 0345 464 0079 or drop us an email.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
Towns and villages near Three Oaks
Other services in Three Oaks
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. It will not solve:
- Soft or decayed wood in the frame
- A failed sealed unit that has misted up
- Worn gaskets, brush seals or a door that has dropped
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before booking.
What we seal
- Timber windows & doors
- Composite doors
- uPVC windows
- Patio & French doors
- Aluminium frames
- Window sills
FAQs for Three Oaks
I let a flat near Three Oaks station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Will you come out to Three Oaks?
Yes. Three Oaks is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can new window sealant be painted?
That depends on the product. Some hybrid sealants can be painted; silicone can’t. Tell us if you are decorating and we’ll choose accordingly.
Can you do upstairs windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote and we’ll plan for it.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
How many windows can you do in a day?
The work takes a few hours for a few frames, or a day or more for a whole house. Access and how stubborn the old mastic is affect the time most.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We check where the draught is before any work starts.
Frames and glazing around Three Oaks
Three Oaks is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to St Laurence's Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Managing a site like Buckswood School? Then the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Three Oaks station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Three Oaks is about 3 miles north-east of Hastings, in East Sussex. If you need window mastic in Three Oaks, please ring 0345 464 0079 or send us an email for a quick quote. We cover East Sussex from our Crawley base. Three Oaks is one of 289 places in East Sussex where we work for window mastic. There’s also a page for Brighton, roughly 33 miles from Three Oaks.
Here we cover the TN35 postcode area for window mastic. We cover properties on Butcher's Lane, Morgay Wood Lane and Eight Acre Lane and the roads around them. We also cover the places around Three Oaks: Doleham (1 mile north-west), Broad Street (2 miles north-east), Icklesham (2 miles north-east), Broadland Row (3 miles north) and Udimore (3 miles north-east). Further out, we also cover Hastings (3 miles south-west), Bexhill-on-Sea (8 miles south-west), St Leonards (4 miles south-west), Hastings Old Town (3 miles south), Belmont (3 miles south) and Langney (15 miles south-west).
Near you in Three Oaks
We work in homes and buildings around The Hope Public House, Hastings Academy and Guestling Bradshaw Church of England Primary School. Three Oaks has its own railway station: Three Oaks station. Well-known places in the area include Barn Theatre and Museum (1.5 miles west) and Conquest Hospital (2.5 miles south-west). Not far away are Church Wood and Robsack Wood.
Different surfaces, different methods
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We will tell you which suits your home.
Composite doors
A composite door normally sits in a plastic outer frame, and the joint around it is sealed like a window. We match the colour to the frame.
Why it’s worth doing now in Three Oaks
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. In a small place like Three Oaks, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
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.
Why choose Mr Mastic in Three Oaks
- White, clear, grey or another colour, product permitting
- We’re fully insured
- Domestic, commercial and hotel work
- We agree the colour with you first
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
What affects the quote in Three Oaks
The price is agreed before any work begins. It takes into account:
- The product the joint needs
- Whether the work is at height
- How many rooms, windows or areas are involved
- The size of the job
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and send you a clear quote before any work starts.
What we need to know
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- The type of property
- How we’d reach the joints
- Pictures of the joints, sent by email
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we will take it from there.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a few frames, or a day or more for a whole house and we leave things clean and tidy. In a small place like Three Oaks, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Let us know if you’ve seen damp or leaks
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Every job is quoted individually. Simply ring 0345 464 0079 or email us and describe the job.