West Sussex · England
Hurstpierpoint Window Mastic
Window mastic across Hurstpierpoint and nearby, with every bit of old sealant taken out first.
- Gaps where the sill meets the wall
- Black, perished sealant on frames
- Water coming in at the bottom corners of a door
What we do, step by step
Before we leave, we go over the finished joints with you. The work normally takes anything from an hour or two to a full day, depending on how many frames there are, depending on how much there is to do. A visit to Hurstpierpoint is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
How to prepare
- Tell us if parking is tricky
- Let us know about earlier repairs to the joints
- Mention any tricky access
Ask for a quote
If you’re in Hurstpierpoint and need window mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Advice
Window mastic for homes and businesses in Hurstpierpoint
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so deep gaps get backing rod first. The sealant then grips the two sides it should. We work on composite doors, patio & French doors and window sills, and the jobs we see most are hard, cracked sealant around windows and leaking joints at the ends of sills.
In smaller places like Hurstpierpoint, 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.
Each job carries a 12-month guarantee.
- Location
- Hurstpierpoint (BN6)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Hurstpierpoint
More services for Hurstpierpoint
Why it’s worth doing now in Hurstpierpoint
Choosing the product is half the job. Interior caulk and bathroom silicone aren’t made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. In a smaller place like Hurstpierpoint, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Rated 4.9 stars on Google
- Neat joints and a tidy finish
- We agree the colour with you first
Take a look at our cost guide and customer reviews.
FAQs for Hurstpierpoint
Can you help a landlord with a rental near Hassocks station?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Is Hurstpierpoint within the area you cover?
Yes. Hurstpierpoint is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or email us.
Can you match the sealant to my frames?
Normally, yes. Tell us the frame colour when you get in touch and we’ll use the nearest match.
Will resealing my frames help with draughts?
It will if the frame joint is the problem. We find where the air is coming from before we reseal.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we’re done.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Check the mastic once a year
- Keep solvents and bleach off the sealant
- Don’t paint over the silicone
- Avoid blasting the frames with a pressure washer
Silicone cannot normally be painted, so if you are planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.
Landlords, agents and businesses in Hurstpierpoint
We also work for property managers and facilities teams in Hurstpierpoint and across West Sussex. We can quote a run of properties together, and we’re fully insured for the work.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Hurstpierpoint homes and the weather
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Hurstpierpoint Baptist Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you look after a building such as St Lawrence CofE Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Hurstpierpoint is about 3 miles south-west of Burgess Hill, in West Sussex. We carry out window mastic for householders, landlords and businesses in Hurstpierpoint and nearby, as part of our work across West Sussex. Hurstpierpoint is one of 371 places in West Sussex we cover. For nearby work, see our Brighton page.
Every address in BN6 is within our area for window mastic, from the main roads to the quietest streets. That includes homes and businesses on High Street, Marchants Close and Marchants Road. Hurstpierpoint sits on or near the B2116, which makes travel easy. Neighbouring places we cover for window mastic include Hurst Wickham (1 mile east), Sayers Common (1 mile north-west), Hassocks (1 mile south-east), Keymer (2 miles south-east) and Goddards Green (2 miles north). Larger places within reach include Crawley (12 miles north), Horsham (11 miles north-west), Worthing (12 miles south-west), Haywards Heath (6 miles north-east), Burgess Hill (3 miles north-east) and East Grinstead (15 miles north-east).
Landmarks near Hurstpierpoint
Locally, jobs take us to homes and businesses close to The Poacher pub and Downlands Community School and the streets around them. The closest station to Hurstpierpoint is Hassocks station, about 1.5 miles south-east. A little further out are The Dene Hospital (2.1 miles north) and Clayton Castle (2.3 miles south-east). Not far away are Bedelands Farm Nature Reserve and Wolstonbury Hill.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
A careful DIYer can reseal a simple joint, 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.
What we can’t put right
Before booking, it’s worth knowing the limits:
- Faulty window hardware
- Penetrating damp from a failed cavity tray or render
- A frame that has rotted at the joint
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before booking.
What we seal
- Patio & French doors
- Aluminium frames
- Window sills
- uPVC windows
- Timber windows & doors
- Composite doors
Signs you need window mastic in Hurstpierpoint
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
People normally contact us after spotting one of these:
- Whistling draughts around closed windows
- Untidy mastic left by window fitters
- Mastic that has split away from the wall
- Cracked sealant at the sill ends
Letting a property close to Hassocks station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Before you book anyone
- What happens if the job turns out different
- Is VAT in the price?
- Which colour the sealant will be
- When the joint can take water or movement