West Sussex · England
Window Mastic in East Hampnett
Window mastic for East Hampnett, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked sealant at the sill ends
- Cracked internal joints between frame and plaster
- Whistling draughts around closed windows
Window mastic for homes and businesses in East Hampnett
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We’re often asked to deal with untidy mastic left by window fitters and mastic that’s falling out in pieces, on timber windows & doors, window sills and patio & French doors.
Somewhere as small as East Hampnett, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Location
- East Hampnett (PO18)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
When to call us in East Hampnett
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, and it lets go sooner than it should.
Keep an eye out for any of the following:
- Cracked internal joints between frame and plaster
- Gaps left after new windows were fitted
- A bead that doesn’t match the frame
- Leaking joints at the ends of sills
Homes close to The Parish Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- What the quote includes, VAT included or not
- Whether all the old sealant comes out first
- How long the guarantee is
- How much experience the applicator has
What affects the quote in East Hampnett
The quote reflects the job in front of us. We take into account:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- How many areas need sealing
- The size of the job
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- Any access issues, like height or stairs
- If someone has resealed it before
- The type of property
- How many joints, rooms or windows are involved
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Towns and villages near East Hampnett
Also in East Hampnett
Leave it or put it right?
Getting a straight, even bead on an outside frame takes practice, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Where a wall is exposed, as many are in small places like East Hampnett, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in East Hampnett
- Quality sealants from Arbo and Everbuild
- A 12-month guarantee on all work
- More than 20 years in sealant work
- Sealant colour chosen to suit
Take a look at how sealant jobs are priced and what customers say.
East Hampnett homes and the weather
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. With historic houses such as Goodwood House (about 2.4 miles north-west) nearby, there’s older building stock in the area around East Hampnett as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Tangmere Primary Academy, the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Barnham station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
East Hampnett is about 4 miles east of Chichester, in West Sussex. We carry out window mastic for homes and businesses in East Hampnett and nearby. Our area takes in 371 places across West Sussex, from the larger towns to small villages. There’s also a page for Portsmouth, roughly 17 miles from East Hampnett.
Jobs for window mastic in PO18 is quoted and booked the same way as anywhere else. Local streets include Marsh Lane and East Hampnett Lane. Nearby, we also carry out window mastic in Crockerhill (1 mile north-east), Norton (1 mile east), Aldingbourne (1 mile south-east), Nyton (1 mile south-east) and Westergate (2 miles south-east). Further out, we also cover Worthing (13 miles east), Bognor Regis (4 miles south), Chichester (4 miles west), Selsey (9 miles south-west), Littlehampton (8 miles east) and Emsworth (11 miles west).
Landmarks near East Hampnett
Typical jobs here are in homes near The Winterton Arms Public House and Ormiston Six Villages Academy and the streets around them. The closest station to East Hampnett is Barnham station, about 2.8 miles south-east of the centre. Well-known places in the area include The Chichester City Museum (3.7 miles west) and Tote Copse Castle (1.2 miles south). The countryside around East Hampnett includes Levin Down.
Landlords, agents and businesses in East Hampnett
Housing providers, facilities teams and property managers book us too in East Hampnett and across West Sussex. Several sites can go on one quote, and we’re fully insured for the work.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
Common questions in East Hampnett
Is East Hampnett in your area for window mastic?
Yes, East Hampnett is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
Is East Hampnett within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator.
Can you get sealant to suit coloured frames?
Yes, in most cases. Mention the frame colour when you ask for a quote and we will match it as closely as we can.
Can you reach windows above the ground floor?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote and we will plan for it.
Do you seal inside as well as outside?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
Are you insured?
Yes. We’re fully insured.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we’re done.
Honest limits
New sealant cannot fix everything, and we’d rather say so up front. Sealant won’t put right:
- Worn gaskets, brush seals or a door that has dropped
- Damp coming through the wall itself rather than the frame joint
- A frame that has rotted at the joint
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before you book.
Where we work in East Hampnett
- Patio & French doors
- Composite doors
- Window sills
- uPVC windows
- Timber windows & doors
- Aluminium frames
How to look after the new joints
So the new joints stay in good condition:
- Wash the frames with mild soapy water
- Ventilate rooms so frames don’t stay wet inside
- Keep paint off silicone joints
- Keep drainage slots and sill grooves clear
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
How the visit works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a few frames, or a day or more for a whole house and we leave things clean and tidy. For a village or hamlet like East Hampnett, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
Get a quote
We quote each job on its own, so the first step is telling us about yours. Just ring 0345 464 0079 or email us with the details, and photos are welcome.