East Sussex · England
Window Mastic in Hastings Old Town
Window mastic for Hastings Old Town, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Hard, cracked sealant around windows
- Draughty joints inside around the window
- Old mastic that has gone black or come away
Window mastic for homes and businesses in Hastings Old Town
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. If you are dealing with untidy mastic left by window fitters and white mastic on grey or black frames, we can put it right.
In smaller places like Hastings Old Town, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Hastings Old Town (TN34, TN35)
- Wider area
- East Sussex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Questions from Hastings Old Town
Will you come out to Hastings Old Town?
Yes, Hastings Old Town is covered. Our work covers 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 Hastings Old Town any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are normally the first to need attention.
Is the work guaranteed?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
Can you get sealant to suit coloured frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Can you seal over the old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Is the new sealant paintable?
Not normally, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Places near Hastings Old Town
What else we do in Hastings Old Town
Frames and glazing around Hastings Old Town
Hastings Old Town is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Hastings station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For an older house near a landmark such as Church of St Clement, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Hastings Old Town is about 1 mile south-east of Hastings, in East Sussex. Whether you are in the middle of Hastings Old Town or further out, we cover window mastic for every kind of property. Hastings Old Town is one of 289 towns and villages in East Sussex where we work for window mastic. Brighton is on our list too, about 32 miles from Hastings Old Town.
Here we cover the TN34 and TN35 postcode area for window mastic. Whether your property is on Crown Lane, Croft Road and Manor Road or a nearby road, we can help. Other places close to Hastings Old Town include Rock-a-Nore (1 mile south-east), Belmont (1 mile north), America Ground (1 mile west), Blacklands (1 mile north-west) and St Helen's (1 mile north-west). Within a short drive, we also cover Eastbourne (14 miles west), Bexhill-on-Sea (6 miles west), Hailsham (15 miles west), Polegate (15 miles west), Old Town (15 miles west) and Upper Horsebridge (15 miles west).
Near you in Hastings Old Town
Typical jobs here are in homes near Linton Gardens, The Royal Standard Public House and William Parker Sports College, among other places. Other local landmarks include University School (0.9 miles west) and Roman Catholic Church of St Mary Star of the Sea (under half a mile north-east). For rail, the closest station is Hastings station, roughly 0.7 miles west. A little further out are Priory Meadow Shopping Centre (0.5 miles west) and Hastings Castle (less than half a mile west). For a walk, there’s Church Wood and Robsack Wood.
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Check the mastic once a year
- Ventilate rooms so frames do not stay wet inside
- Keep jet washers away from the mastic
- Use gentle cleaners on frames and sealant
Check the drainage slots in the frames aren’t blocked, so water can run away instead of sitting against the joint.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.
How it works
The work is kept neat and contained to the joints we are treating, so you can get on with your day. The job usually takes 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. For a job in Hastings Old Town, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We start by checking each window and door with you.
- 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.
- We clear up and check every joint is fully closed.
Preparing for the visit
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Read more
How we quote for window mastic
The price is agreed before any work begins. It’s based on:
- Access and height
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- How much there is to do
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
When you contact us, these details help:
- How we’d reach the joints
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- What’s wrong with the joints now
Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Different surfaces, different methods
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.
Common problems we fix in Hastings Old Town
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
Any of these means the joints need attention:
- Old mastic that has gone black or come away
- Whistling draughts around closed windows
- Mastic that has split away from the wall
- Cracked sealant at the sill ends
Managing a site like Ark Castledown Primary Academy? Then larger buildings have plenty of frames, and the mastic around each one ages.
Before you book anyone
- What happens if the job turns out different
- What the cure time is
- Whether all the old sealant comes out first
- Which sealant they’ll use, and why