East Sussex · England
Window & door mastic in Hastings, East Sussex
Mastic around window and door frames, sills and patio doors for homes and businesses in Hastings and across East Sussex. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Rushed sealant from a window installation
- Mastic that has split away from the wall
- Damp patches on the reveal after heavy rain
Common questions in Hastings
Is window mastic in a coastal place like Hastings 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. It’s worth checking the walls that face the sea first.
Is Hastings in your area for window mastic?
Yes, Hastings is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Can you quote for more than one area?
Yes. Just list everything you need.
Do you take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
Will resealing my frames help with draughts?
Often, yes. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
Do you work for landlords and businesses?
Yes, we do. We work in homes, commercial premises and hotels, and we are fully insured.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Window mastic in Hastings, done properly
From a single sill to a whole house of windows, you will get a clear quote before we start. To get one, call 0345 464 0079 or send us an email with the number of frames and any access details for window mastic in Hastings. We work on window sills, timber windows & doors and composite doors, and people most often call us about gaps between the frame and the inside reveal and hard, cracked sealant around windows.
With a large rental market, Hastings has plenty of windows that landlords need to keep weathertight. Cracked or missing mastic round a frame is a common cause of damp patches and draughts.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Hastings (TN34, TN38, TN37, TN35)
- Wider area
- East Sussex
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Keeping the joints in good condition
After the cure time, these simple habits help:
- Clear any debris from frame drain holes
- Ventilate rooms so frames don’t stay wet inside
- Clean frames with a soft cloth and soapy water
- Keep timber frames painted
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak, and if anything looks wrong, just call 0345 464 0079 or email us.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Landlord and commercial work in Hastings
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Landlords and letting agents in Hastings can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Surface by surface
Composite doors
A composite door normally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A tidy bead in anthracite grey, black or a matching colour suits the frame.
Why act early in Hastings
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Busy buildings in Hastings, from hotels to offices, cannot afford rooms out of use for leaks or mould, so it pays to replace failing joints before they get that far.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- We never seal over old sealant
- We leave the area clean and tidy
- Full insurance on every job
- We agree the colour with you first
See how sealant jobs are priced and our reviews.
Nearby places to Hastings
What else we do in Hastings
Windows and doors in Hastings
Hastings is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around window and door frames, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near St Luke's Church, the joint between an old wall and a newer frame is normally the first place rain gets in. For landlords with property near St Leonards Warrior Square station, renewing tired window mastic between tenants heads off draught and damp complaints.
Hastings is in East Sussex. Jobs in Hastings get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our East Sussex coverage runs to 289 places, Hastings among them. We also work in Brighton, around 30 miles away.
Here we cover the TN34, TN38, TN37 and TN35 postcode area for window mastic. You’ll find streets such as London Road, Church Road and Upper Church Road. Being close to the A21 and A28, Hastings is simple for us to get to. If you are just outside Hastings, we cover Silverhill (1 mile west), Blacklands (1 mile east), St Helen's (1 mile north-east), Hollington (1 mile north-west) and St Leonards (1 mile south-west). Larger places within reach include Eastbourne (13 miles south-west), Bexhill-on-Sea (4 miles west), Hailsham (13 miles west), Polegate (14 miles west), Old Town (15 miles south-west) and Heathfield (15 miles north-west). Being one of East Sussex’s larger places, Hastings has every kind of property, from flats to offices.
Around Hastings
In Hastings, that means homes and buildings near William Parker Sports College, University School and The Duke pub. For rail, the closest station is St Leonards Warrior Square station, about 0.9 miles south of the centre. A little further out are Conquest Hospital (1.2 miles north) and Priory Meadow Shopping Centre (1.1 miles south-east). Green spaces nearby include Senlac Hill and Church Wood and Robsack Wood.
Can I do it myself?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
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.
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a few frames, or a day or more for a whole house. Jobs in a place the size of Hastings range from town-centre flats to offices and family homes. For each, it helps to know about access, parking and where the joints are.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Let us know about parking restrictions
- Move anything stored near the joints
- Plan for the work area to be out of bounds to pets and children
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Related advice
Signs you need window mastic in Hastings
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
Keep an eye out for any of the following:
- Cold air getting in at the frame edge
- Cracked internal joints between frame and plaster
- Old mastic that has gone black or come away
- Hard, cracked sealant around windows
If you look after a building such as St Paul's Church of England Academy, its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before you book
- How much experience the applicator has
- Whether they seal over old material or remove it
- What happens if the job turns out different
- How long to leave it before use