West Sussex · England
Window & door mastic in Ashurst, West Sussex
Mastic around window and door frames, sills and patio doors for homes and businesses in Ashurst and across West Sussex. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Water coming in at the bottom corners of a door
- Whistling draughts around closed windows
- Rushed sealant from a window installation
Window mastic in Ashurst, done properly
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on aluminium frames, composite doors and timber windows & doors, and common reasons people get in touch are mastic that has split away from the wall and mastic that’s falling out in pieces.
Homes in small places like Ashurst often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Ashurst (BN44)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Ashurst
Jobs vary more than people expect. The main factors:
- Mould in or behind the old joints
- Which sealant suits the joint
- Access and height
- The old material and how stubborn it is
Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
What we need to know
When you contact us, these details help:
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
- A few photos by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Ventilate rooms so frames don’t stay wet inside
- Keep jet washers away from the mastic
- Keep solvents and bleach off the sealant
- Keep drainage slots and sill grooves clear
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
For landlords and businesses
For anyone letting property in or around Ashurst, several properties can be quoted together. Send us the addresses and the work at each, and pictures by email help.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
How the visit works
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the job takes a few hours for a handful of frames, longer for a whole house in most cases. Somewhere like Ashurst needs a little journey planning: 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.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we’re working on
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear quote.
Related advice
When something else is needed
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Faulty window hardware
- Damp coming through the wall itself rather than the frame joint
- A frame that has rotted at the joint
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly before booking.
What we seal
- Timber windows & doors
- Window sills
- Composite doors
- uPVC windows
- Patio & French doors
- Aluminium frames
Window mastic in Ashurst: local notes
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Ashurst CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s. Homes close to The Parish Church of St James include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Ashurst is about 7 miles north of Shoreham-by-Sea, in West Sussex. Ashurst gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Ashurst is one of 371 places in West Sussex where we work. We also work in Brighton, around 11 miles away.
Work in BN44 works the same way as everywhere else we cover. Streets in the area include Church Lane and School Lane. We also cover the places around Ashurst: Partridge Green (2 miles north-east), Dial Post (2 miles north-west), Wiston (2 miles south-west), Littleworth (3 miles north) and Ashington (3 miles west). Further out, we also cover Crawley (14 miles north-east), Horsham (9 miles north), Worthing (8 miles south-west), Haywards Heath (11 miles north-east), Burgess Hill (9 miles east) and Littlehampton (12 miles south-west).
Around Ashurst
Typical jobs here are in homes near Fountain Inn. Nearby you will also find Steyning Museum (3.1 miles south). Not far away are Chanctonbury Hill and Knepp Wildland.
Nearby places to Ashurst
More services for Ashurst
Different surfaces, different methods
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. We seal those with a sealant suited to masonry.
Your questions about window mastic in Ashurst
Is there a guarantee on window mastic in Ashurst?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is Ashurst within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we are using and why.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
Can new window sealant be painted?
Silicone generally won’t take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
When is the sealant fully cured?
Different products cure at different speeds, so please follow the time we give you.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.