West Sussex · England
Fulking Window Mastic
Problem with your window and door frames in Fulking? We remove the old material, prepare the joints and seal them properly.
- Cracked or shrunken mastic around the frame
- Water coming in at the bottom corners of a door
- A bead that does not match the frame
Window mastic in Fulking
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. Either or both can be done. We are often asked to deal with cracked internal joints between frame and plaster and gaps where the sill meets the wall, on composite doors, timber windows & doors and aluminium frames.
Homes in small places like Fulking 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.
Big or small, it’s backed by our 12-month guarantee.
- Where
- Fulking (BN5)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Fulking
The work is quick compared with the damage it prevents: the visit takes most of a day for a typical house, less for a few frames. Leave it until water is coming in and you may need plastering and decorating as well. Where a wall is exposed, as many are in small places like Fulking, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why us?
- We are fully insured
- Rated 4.9 stars on Google
- We leave the area clean and tidy
- Quality sealants from Arbo and Everbuild
Read our cost guide and our reviews.
What window mastic looks like in Fulking
With historic houses such as Portslade Manor (about 3.3 miles south) nearby, there’s older building stock in the area around Fulking 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. 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.
Rented homes near Portslade station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Fulking is about 4 miles north-west of Brighton and Hove, in West Sussex. Across the BN5 area, we cover window mastic for homes and businesses. Our area takes in 371 places across West Sussex. There’s also a page for Brighton, about 6 miles away.
Postcode districts we cover here for window mastic: BN5. Nearby, we also carry out window mastic in Poynings (1 mile north-east), Hangleton (3 miles south), Castle Town (3 miles west), Portslade (3 miles south) and Kingston by Sea (4 miles south). Larger places within reach include Crawley (15 miles north), Horsham (13 miles north), Worthing (9 miles south-west), Haywards Heath (9 miles north-east), Burgess Hill (6 miles north-east) and Littlehampton (14 miles west).
Landmarks near Fulking
Around Fulking, our work takes us to homes and buildings near The Shepherd And Dog Public House and the streets around them. The nearest railway station is Portslade station, about 3.9 miles south. Well-known places in the area include Clayton Castle (3.7 miles east) and Southlands Hospital (3.7 miles south). Green spaces nearby include Truleigh Hill and Woods Mill.
Common problems we fix in Fulking
Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
These are the problems we are asked about most:
- A bead that doesn’t match the frame
- Rain getting in at the frame or under the sill
- Draughty joints inside around the window
- Draughts coming in around windows and doors
Homes close to The Church of the Holy Trinity include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- How hidden problems are handled
- How long to leave it before use
- What guarantee comes with the work
- Who does the work, and how experienced they are
Towns and villages near Fulking
What else we do in Fulking
Aftercare tips
Good habits help new joints last longer. A few tips:
- Clear any debris from frame drain holes
- Keep paint and stain on wooden frames in good order
- Keep solvents and bleach off the sealant
- Do not paint over the silicone
Most silicone sealants will not take paint, so if you are planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Can I do it myself?
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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
What affects the cost of window mastic
We don’t publish a price list. What we look at:
- The size of the job
- Working hours on commercial sites
- Access and height
- The product the joint needs
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
- The rough size of the job
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
How it works
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it normally takes most of a day for a typical house, less for a few frames. In a small place like Fulking, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- 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.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Keep children and pets away from the work area
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Getting a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job.
Read more
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Questions from Fulking
Is Fulking 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.
Can you do window mastic in Fulking?
Yes. We work across London and the South East, and Fulking is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.
Do you guarantee window mastic?
Yes. Every job comes with our 12-month guarantee, and we’re fully insured.