East Sussex · England
Sand mastic for sash & case windows in Hastings Old Town, East Sussex
Problem with your window and door surrounds in Hastings Old Town? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
- Modern sealant on a period surround
Sand mastic in Hastings Old Town, done properly
We work across Hastings Old Town renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. Common call-outs are for modern sealant on a period surround and draughts and rain around sash boxes, across period & listed homes, tenement windows and sash and case windows.
Houses in smaller places like Hastings Old Town can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. That’s hard on the mastic around frames and sills.
Each job carries a 12-month guarantee.

- Location
- Hastings Old Town (TN34, TN35)
- Region
- East Sussex
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What sand mastic looks like in 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 older windows and doors, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Hastings station change hands often, and any sash windows need sound mastic to keep draughts and rain out. If you look after a building such as Ark Castledown Primary Academy, its window and door frames need their mastic kept sound, just like a home’s.
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 sand mastic for every kind of property, from flats and houses to offices and hotels. Hastings Old Town is one of 289 towns and villages in East Sussex we cover. There’s also a page for Brighton, about 32 miles away.
Postcode districts we cover here for sand mastic: TN34 and TN35. Whether your property is on Crown Lane, Croft Road and Manor Road or a nearby road, we can help. Close by, we work in 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).
Local landmarks in Hastings Old Town
Typical jobs here are in homes near Linton Gardens, The Royal Standard Public House and William Parker Sports College. Other local landmarks include University School (0.9 miles west) and Roman Catholic Church of St Mary Star of the Sea (less than half a mile north-east). Hastings Old Town’s nearest station is Hastings station, roughly 0.7 miles west. Well-known places in the area include 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.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Towns and villages near Hastings Old Town
Other services in Hastings Old Town
Quotes for sand mastic in Hastings Old Town
Your quote is based on your job. We take into account:
- The type of sealant required
- Whether old sealant or filler has to be cut out
- How much there is to do
- Whether there’s mould to deal with
What you pay reflects the work, not guesswork. That is why we ask about the job first.
Helping us quote
What to tell us when you ask for a quote:
- Where the property is
- A few photos by email, if you can
- Access, such as stairs, a lift or height
- If it’s domestic, commercial or a hotel
Asking for a quote is easy: tell us what needs doing and where. A few photos by email make the job easier to understand, and we will take it from there.
What we’re called out for in Hastings Old Town
Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
The problems people usually mention when they call include:
- A silicone bead on a sash window that spoils the look
- Mastic worn away on windows facing the weather
- Window mastic to renew ahead of painting
- Gaps between timber frames and stone or brick
In the older streets around Church of St Clement, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Which sealant they’ll use, and why
- How the surfaces are prepared before sealing
- Whether you can choose the colour
- How hidden problems are handled
Landlords, agents and businesses in Hastings Old Town
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.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a single window, longer for several and we leave things clean and tidy. In a smaller place like Hastings Old Town, 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 window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
- Keep pets and children clear of the area while we work
Get a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work and give you a clear quote.
Advice
Why it’s worth doing now in Hastings Old Town
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. In an older home around Hastings Old Town, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why us?
- An ARBOMaster approved applicator
- 180+ five-star Google reviews
- Neat joints and a tidy finish
- A 12-month guarantee on all work
Take a look at what affects the cost or customer reviews.
Different surfaces, different methods
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Questions from Hastings Old Town
Does living near the coast affect sand mastic in Hastings Old Town?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are usually the first to need attention.
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. The journey is planned ahead, so it helps to know about access.
Can you replace silicone on a period window with sand mastic?
In most cases. The silicone is cut out and the joint cleaned before the sand mastic goes in.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we’re using.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done.
How long does sand mastic take to go off?
Not straight away. The skin forms first, and the full set comes later, and we’ll tell you what to expect.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant, and we’ll explain why.
