West Sussex · England
Broomershill Window Mastic
Mastic around window and door frames, sills and patio doors in Broomershill, with a one-year guarantee on every job. Ask us for a quote.
- Cracked or shrunken mastic around the frame
- Sealant in the wrong colour for the frame
- Draughty joints inside around the window
Window mastic in Broomershill, done properly
From a single sill to a whole house of windows, you’ll get a clear quote before any work starts. To get one, phone 0345 464 0079 or drop us an email with the number of frames and any access details. We work on window sills, patio & French doors and uPVC windows, and common reasons people get in touch are water coming in at the bottom corners of a door and gaps where the sill meets the wall.
Homes in small places like Broomershill often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or email us.

- Where
- Broomershill (RH20)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlord and commercial work in Broomershill
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.
We work for letting agents and landlords as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Leave it or put it right?
Running fresh sealant over the old joint is tempting, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Older cottages and farmhouses around Broomershill can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in Broomershill
- Old sealant always removed completely
- Homes, businesses and hotels
- Over 20 years’ experience
- Full insurance on every job
What window mastic looks like in Broomershill
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. With historic houses such as Old Place Manor (about 1 mile west) nearby, there’s older building stock in the area around Broomershill 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.
For landlords with property near Pulborough station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Homes close to The Parish Church of St Mary include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Schools such as St Mary's Church of England Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Broomershill is about 10 miles south-west of Horsham, in West Sussex. Our applicators cover window mastic for homes and businesses in Broomershill and nearby, as part of our work across West Sussex. 371 places in West Sussex are on our list, from the larger towns to small villages. Our Crawley page covers work nearby, about 17 miles away.
We work across the RH20 postcode area for window mastic and the streets around it. Neighbouring places we cover for window mastic include Codmore Hill (1 mile north-west), Marehill (1 mile south-east), Nutbourne (1 mile south-east), North Heath (1 mile north) and Gay Street (1 mile north-east). Within a short drive, we also cover Horsham (10 miles north-east), Worthing (11 miles south), Bognor Regis (15 miles south-west), Chichester (15 miles south-west), Littlehampton (11 miles south) and Shoreham-by-Sea (13 miles south-east).
Near you in Broomershill
In Broomershill, that means homes and buildings near The Red Lion Public House, among other places. Broomershill’s nearest station is Pulborough station, roughly 1.3 miles south-west. A little further out are Coates Castle (4.4 miles west) and The Storrington And District Museum (3.8 miles south-east). Green spaces nearby include The Mens.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Wipe condensation off the frames
- Keep solvents and bleach off the sealant
- Don’t paint over the silicone
- Clean frames with a soft cloth and soapy water
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
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.
How the job changes by surface
Patio & French doors
Water at the foot of a door frame is not always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We’ll point out any rot we find, as that’s a job for a joiner.
Common questions in Broomershill
Can you do window mastic in Broomershill?
Yes. Our work covers London and the South East, and Broomershill is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Pulborough station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Can you reach windows above the ground floor?
Yes, in most cases. We plan safe access before the job.
Do you take out the old sealant first?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
Where are you based?
We work from Crawley. Our applicators cover Broomershill, along with the rest of our area.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
How the visit works
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Broomershill, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- Keep children and pets away from the work area
- Let us know about parking restrictions
- Tell us about any previous sealing or DIY attempts
Getting a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved.
Read more
Towns and villages near Broomershill
More services for Broomershill
What we cannot put right
In fairness, some problems need a different trade:
- Penetrating damp from a failed cavity tray or render
- Rotten timber, which needs a joiner first
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Window sills
- Timber windows & doors
- Aluminium frames
- Composite doors
- uPVC windows
- Patio & French doors
What affects the cost of window mastic
Every job gets its own quote. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- The amount of work
- Whether there’s mould to deal with
- Which sealant suits the joint
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
When you contact us, these details help:
- Where the property is
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
- Whether it has been sealed before
To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before any work starts.
