East Sussex · England
Window & door mastic in Stunts Green, East Sussex
Window mastic for Stunts Green, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Whistling draughts around closed windows
- Rushed sealant from a window installation
- Old mastic that has gone black or come away
Stunts Green homes and 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. Historic houses like Horselunges Manor (about 2.9 miles west) are a reminder that the area around Stunts Green has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
For site and facilities teams at buildings such as Herstmonceux Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Stunts Green is about 3 miles north-east of Hailsham, in East Sussex. Wherever you are in the BN27 postcode area, our applicators can take on window mastic. Across East Sussex, we cover 289 places, Stunts Green among them. Our Brighton page covers work nearby (20 miles or so).
We work across the BN27 postcode area for window mastic. Neighbouring places we cover for window mastic include Herstmonceux (1 mile south-east), Chapel Row (1 mile south-east), Flowers Green (1 mile south-east), Golden Cross (1 mile south) and Windmill Hill (1 mile south-east). We also work in nearby towns such as Eastbourne (8 miles south), Hastings (11 miles east), Bexhill-on-Sea (7 miles south-east), Seaford (12 miles south-west), Lewes (13 miles west) and Hailsham (3 miles south-west).
Around Stunts Green
In Stunts Green, that means homes and buildings near Woolpack Inn, among other places. A little further out are Amberstone Hospital (1.8 miles south-west) and Herstmonceux Castle (2 miles south-east).
About our window mastic in Stunts Green
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. We are often asked to deal with damp patches on the reveal after heavy rain and a bead that doesn’t match the frame, across patio & French doors, uPVC windows and window sills.
Around Stunts Green, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Your job is guaranteed for a year, as with all our work.
- Where
- Stunts Green (BN27)
- Wider area
- East Sussex
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Stunts Green
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar didn’t grip properly, so it comes away long before its time.
Any of these means the joints need attention:
- Gaps left after new windows were fitted
- Gaps where the sill meets the wall
- Cracked internal joints between frame and plaster
- Mastic that has split away from the wall
Horselunges Manor, about 2.9 miles west, is one of the historic houses in the wider area around Stunts Green.
Comparing quotes
- Whether VAT is included
- Is the old sealant removed completely?
- Whether they’re fully insured
- How much experience the applicator has
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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 fails, we can still redo it.
FAQs for Stunts Green
Is window mastic in Stunts Green guaranteed?
All our work, in Stunts Green and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Will you come out to Stunts Green?
Yes, Stunts Green is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Stunts Green.
Do you have sealant for grey or black windows?
Normally, yes. Tell us the frame colour when you get in touch and we will use the nearest match.
How long will my window job take?
Allow a morning for a couple of windows and a door. Access and the amount of old mastic make the biggest difference.
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it usually takes a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Stunts Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- 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.
Before we arrive
- Let us know about earlier repairs to the joints
- 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
How to get a quote
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before work begins.
Related advice
For landlords and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Surface by surface
Window sills
Stone and concrete sills have their own joints, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We’ll tell you which suits your home.
How to look after the new joints
So the new joints stay in good condition:
- Avoid blasting the frames with a pressure washer
- Do not use solvent cleaners on the joint
- Wipe condensation off the frames
- Check the mastic once a year
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
Nearby places to Stunts Green
What else we do in Stunts Green
Why act early in Stunts Green
Getting a straight, even bead on an outside frame takes practice, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. In a small place like Stunts Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why book with us
- 4.9 on Google from 180+ five-star reviews
- Experience in homes, commercial sites and hotels
- Over 20 years’ experience
- You choose the colour before work begins
Read what affects the cost and our reviews.