West Sussex · England
Sand mastic for sash & case windows in Broomershill, West Sussex
Specialist sand mastic for Broomershill: careful preparation, the right product and tidy work. Call for a quick quote.
- Draughts and rain around sash boxes
- Old sand mastic that has cracked, crumbled or fallen out
- Cracked mastic round a front door frame
Sand mastic in Broomershill
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. Common call-outs are for tired mastic found when preparing windows for paint and a silicone bead on a sash window that spoils the look, on timber door frames, sash and case windows and tenement windows.
Outdoor sealant needs dry, clean surfaces, so work on frames around Broomershill is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Location
- Broomershill (RH20)
- Region
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Find out about consent before window work on a listed home
- Ask us before painting near the mastic
- Inspect the joints round the windows every year or so
- Don’t run silicone over sand mastic
Don’t run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
When it isn’t the sealant
It helps to know what we cannot do:
- Sashes that need overhauling
- Decayed frames that need repair
- Masonry that needs repairing
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Where we work in Broomershill
- Period & listed homes
- Sash and case windows
- Tenement windows
- Brick reveals
- Timber door frames
- Stone surrounds
Frames and glazing around Broomershill
Historic houses like Old Place Manor (about 1 mile west) are a reminder that the area around Broomershill has older buildings as well as new. In older buildings, 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.
For landlords with property near Pulborough station, cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around The Parish Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Broomershill is about 10 miles south-west of Horsham, in West Sussex. Wherever you are in the RH20 postcode area, we cover sand mastic for homes and businesses. Broomershill is one of 371 towns and villages in West Sussex where we work for sand mastic. You can also see our page for Crawley, about 17 miles away.
Jobs for sand mastic in RH20 is quoted and booked the same way as anywhere else. We also cover 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). Larger places within reach include 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).
Local landmarks 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. Other landmarks nearby include Coates Castle (4.4 miles west) and The Storrington And District Museum (3.8 miles south-east). The countryside around Broomershill includes The Mens.
What the job involves on each surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
What affects the cost of sand mastic
Call for a quick quote. What matters most is:
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
- Working hours on commercial sites
- Which sealant suits the joint
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Any access issues, like height or stairs
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- The rough size of the job
Want a quote for sand mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
DIY sealant or a professional job?
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.
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.
What we’re called out for in Broomershill
Previous repairs in cement or silicone often trap water or crack away. They do not suit the joint, and they normally need raking out.
Keep an eye out for any of the following:
- Gaps between timber frames and stone or brick
- Crumbling sand mastic round a window
- Silicone on a period window that looks wrong
- Failed mastic on an exposed elevation
If you look after a building such as St Mary's Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Is VAT in the price?
- Which sealant they’ll use, and why
- How the joint is cleaned and prepared
- Whether all the old sealant comes out first
Also near Broomershill
More services for Broomershill
Broomershill: your questions answered
Is Broomershill within the area you cover?
Yes. Broomershill is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Pulborough station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Can I paint the new mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Do you offer different sealant colours?
Generally, yes. White, clear and grey are common, and other colours are available for many products, and we’ll agree it with you first.
What guarantee comes with the work?
Every job comes with our one-year guarantee.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
The process
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. In a small place like Broomershill, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details, and photos are welcome.