West Sussex · England
Funtington Window Mastic
Window mastic for Funtington, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Black, perished sealant on frames
- Gaps left after new windows were fitted
- Gaps where the sill meets the wall
How we handle window mastic in Funtington
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. We work on patio & French doors, aluminium frames and uPVC windows, and the jobs we see most are water coming in at the bottom corners of a door and black, perished sealant on frames.
In a village or hamlet like Funtington, 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.
Every job is covered by our one-year guarantee.

- Location
- Funtington (PO18)
- Region
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Soft or decayed wood in the frame
- Faulty window hardware
- Draughts through the window seals rather than the frame
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before you book.
Surfaces we seal
- uPVC windows
- Aluminium frames
- Window sills
- Timber windows & doors
- Composite doors
- Patio & French doors
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
A careful DIYer can reseal a simple joint, 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.
Funtington questions
Can you help a landlord with a rental near Nutbourne station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Is Funtington in your area for window mastic?
Yes. Our work covers London and the South East, and Funtington is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
How long will my window job take?
The work takes a morning for a couple of windows and a door. Access and how stubborn the old mastic is affect the time most.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
What should I tell you?
A short description and the location, plus photos if you have them. We’ll ask anything else we need to know.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
The process
Every visit runs the same way: we check the joints, protect the area around them, do the work and tidy away. Most jobs take most of a day for a typical house, less for a few frames. Somewhere like Funtington needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Preparing for the visit
- Clear items away from the joints we are working on
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
Ask for a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Related advice
What the job involves on each surface
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so they get particular care.
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. Each is cleaned out and resealed.
Why deal with it now?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished. Around Funtington, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or email us and we will talk you through it.
Why book with us
- Full insurance on every job
- A choice of colours where the product allows
- Arbo and Everbuild products
- Colour picked to suit the job
Read our cost guide or customer reviews.
For landlords and businesses
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.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
Signs you need window mastic in Funtington
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.
Any of these means the joints need attention:
- Draughts coming in around windows and doors
- Gaps where the sill meets the wall
- Mastic that is falling out in pieces
- Sealant in the wrong colour for the frame
Schools such as Funtington Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- How hidden problems are handled
- Whether they’re fully insured
- The length of the guarantee
- Which sealant they’ll use, and why
What window mastic looks like in Funtington
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as West Dean House (about 4.6 miles north-east) nearby, there’s older building stock in the area around Funtington as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
In the older streets around The Parish Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Nutbourne station, renewing tired window mastic between tenants heads off draught and damp complaints.
Funtington is about 4 miles north-west of Chichester, in West Sussex. Anywhere in PO18, we cover window mastic for homes and businesses. Across West Sussex, we cover 371 places, and Funtington is one of them. There’s also a page for Portsmouth, about 10 miles away.
We cover every part of PO18 for window mastic. Streets in the area include Church Lane, Lynch Down and Weston Lane. Neighbouring places we cover for window mastic include West Ashling (1 mile south-east), East Ashling (1 mile south-east), Hambrook (1 mile south-west), Racton (1 mile west) and Lordington (2 miles north-west). Larger places within reach include Bognor Regis (9 miles south-east), Chichester (4 miles south-east), Selsey (10 miles south), Littlehampton (15 miles east), Emsworth (4 miles west) and Portfield (5 miles south-east).
Near you in Funtington
Locally, jobs take us to homes and businesses close to The Fox And Hounds Public House and the streets around them. Funtington’s nearest station is Nutbourne station, about 1.8 miles south-west of the centre. A little further out are Chichester Castle (4.3 miles south-east) and Emsworth Museum (3.6 miles south-west). For a walk, there’s Stoke Down and Kingley Vale National Nature Reserve.
