West Sussex · England
Window Mastic in Broomer's Corner
Mastic around window and door frames, sills and patio doors for Broomer's Corner, backed by a one-year guarantee. Call for a quick quote.
- Draughts coming in around windows and doors
- Untidy mastic left by window fitters
- Sealant in the wrong colour for the frame
Quotes for window mastic in Broomer's Corner
There’s no set price list. What we look at:
- How much there is to do
- Whether there’s mould to deal with
- Working hours on commercial sites
- How easy the joints are to reach
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Asking for a quote
When you call or email, it’s useful to know:
- If someone has resealed it before
- Roughly how big the job is
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job.
About our window mastic in Broomer's Corner
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on window sills, patio & French doors and composite doors, and the jobs we see most are draughts coming in around windows and doors and mastic that has split away from the wall.
Somewhere as small as Broomer's Corner, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Your job is guaranteed for a year, as with all our work.
- Location
- Broomer's Corner (RH13)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Make sure the drainage slots aren’t blocked
- Paint up to the joint, not over it
- Check the mastic once a year
- Wash the frames with mild soapy water
Check the drainage slots in the frames are not blocked, so water can run away instead of sitting against the joint.
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.
What happens if it’s left?
Not every sealant suits a window. Interior caulk and bathroom silicone aren’t made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In a small place like Broomer's Corner, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.
What you get with us
- Quality sealants from Arbo and Everbuild
- Rated 4.9 stars on Google
- We are fully insured
- 20+ years of sealant experience
See our cost guide or our reviews.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed 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.
How the job changes by surface
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.
Aluminium frames
Coated aluminium needs a compatible sealant and we avoid acetoxy silicones, which can react with some metals. We use a neutral-cure product.
Common problems we fix in Broomer's Corner
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid cannot stretch. Backing rod sets the right depth.
Look out for these signs:
- Leaking joints at the ends of sills
- Damp patches on the reveal after heavy rain
- Gaps left after new windows were fitted
- Cracked or shrunken mastic around the frame
If you look after a building such as William Penn School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- Which colour the sealant will be
- What guarantee comes with the work
- Which sealant they’ll use, and why
- Is the old sealant removed completely?
Places near Broomer's Corner
Also in Broomer's Corner
Windows and doors in Broomer's Corner
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to St Mary's Mission Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Billingshurst station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Broomer's Corner is about 7 miles south-west of Horsham, in West Sussex. We provide window mastic to homeowners, landlords and businesses in Broomer's Corner. 371 places in West Sussex are on our list. You can also see our page for Crawley, about 13 miles away.
Here we cover the RH13 postcode area for window mastic. Whether your property is on Saucelands Lane, Sincox Lane and Hooklands Lane or a nearby road, we can help. If you’re just outside Broomer's Corner, we cover Whitehall (1 mile east), Shipley (1 mile north-east), Dragons Green (2 miles north-east), Dial Post (2 miles south-east) and Ashington (3 miles south). Larger places within reach include Crawley (13 miles north-east), Horsham (7 miles north-east), Worthing (11 miles south), Haywards Heath (13 miles east), Burgess Hill (12 miles east) and Littlehampton (13 miles south-west).
Near you in Broomer's Corner
The nearest railway station is Billingshurst station, about 3.4 miles north-west. The countryside around Broomer's Corner includes Knepp Wildland.
The process
You don’t need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the work takes a few hours for a handful of frames, longer for a whole house for a typical job. In a small place like Broomer's Corner, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
- Mention any tricky access
Ask for a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.
Advice
Broomer's Corner questions
Will you come out to Broomer's Corner?
Yes. Broomer's Corner is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Broomer's Corner for window mastic?
Yes. Our work covers London and the South East, and Broomer's Corner is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Are you fully insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.