East Sussex · England
Window Mastic in Lower Horsebridge
Window mastic for Lower Horsebridge, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Water coming in at the bottom corners of a door
- Sealant in the wrong colour for the frame
- Whistling draughts around closed windows
Window mastic in Lower Horsebridge
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on timber windows & doors, composite doors and patio & French doors, and common reasons people get in touch are a bead that doesn’t match the frame and gaps where the sill meets the wall.
In a village or hamlet like Lower Horsebridge, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.

- Location
- Lower Horsebridge (BN27)
- Region
- East Sussex
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Landlord and commercial work in Lower Horsebridge
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
What we cannot put right
New sealant can’t fix everything, and we’ll tell you before work begins. Sealant will not put right:
- Faulty window hardware
- Soft or decayed wood in the frame
- Draughts through the window seals rather than the frame
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.
Surfaces we seal
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Window sills
- Composite doors
- Aluminium frames
Why act early in Lower Horsebridge
The work is quick compared with the damage it prevents: it takes a few hours for a handful of frames, longer for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. Older cottages and farmhouses around Lower Horsebridge can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and send you a clear quote before work begins.
Why choose Mr Mastic in Lower Horsebridge
- A sealant colour to suit the surroundings
- Domestic, commercial and hotel work
- We leave the area clean and tidy
- We are fully insured
Read how sealant jobs are priced and our reviews.
Can I do it myself?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
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.
What window mastic looks like in Lower Horsebridge
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Horselunges Manor (about 0.6 miles north-east) nearby, there’s older building stock in the area around Lower Horsebridge as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around Zoar Strict Baptist Chapel, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you let a flat or house near Polegate station, renewing tired window mastic between tenants heads off draught and damp complaints.
Lower Horsebridge is about 1 mile north-west of Hailsham, in East Sussex. We carry out window mastic for householders, landlords and businesses in Lower Horsebridge and nearby, as part of our work across East Sussex. Lower Horsebridge is one of 289 places in East Sussex we cover for window mastic. For nearby work, see our Brighton page (16 miles or so).
Every address in BN27 is covered for window mastic, from the main roads to the quietest streets. Other places close to Lower Horsebridge include Tile Hurst (1 mile south), Upper Horsebridge (1 mile east), Lower Dicker (1 mile west), Hellingly (1 mile east) and Hailsham (1 mile south-east). Larger places within reach include Eastbourne (7 miles south), Hastings (14 miles east), Bexhill-on-Sea (10 miles east), Seaford (9 miles south-west), Lewes (10 miles west) and Crowborough (12 miles north).
Around Lower Horsebridge
In Lower Horsebridge, that means homes and buildings near Hailsham Community College. The closest station to Lower Horsebridge is Polegate station, roughly 4.1 miles south. Nearby you’ll also find Herstmonceux Castle (4.5 miles east) and Hellingly Hospital Railway (1.1 miles north-east).
What the job involves on each surface
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so we pay close attention there.
Signs you need window mastic in Lower Horsebridge
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Look out for any of the following:
- Gaps left after new windows were fitted
- Draughty joints inside around the window
- Sealant in the wrong colour for the frame
- Leaking joints at the ends of sills
For site and facilities teams at buildings such as Hellingly Community Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- Are they insured?
- Who turns up on the day
- What the cure time is
- What happens if they find a problem under the old sealant
Towns and villages near Lower Horsebridge
What else we do in Lower Horsebridge
FAQs for Lower Horsebridge
I let a flat near Polegate station. Can you help?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Is Lower Horsebridge in your area for window mastic?
Yes, Lower Horsebridge is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we will send you a clear quote.
How long will my window job take?
The work takes most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.
Can new window sealant be painted?
That depends on the product. Silicone is not paintable, but some hybrid sealants are. Mention any painting plans before any work starts.
Will new mastic stop draughts?
Often, yes. The gap between frame and wall is a common source of draughts, and sealing the inside and outside joints closes that path.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Do you take out the old sealant first?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in.
What happens on the day
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Lower Horsebridge, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Tell us if parking is tricky
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
Getting a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work.
