West Sussex · England
Sand mastic for sash & case windows in Broadfield, West Sussex
We cover Broadfield for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Weathered mastic on the most exposed windows
- Tired mastic found when preparing windows for paint
- A silicone bead on a sash window that spoils the look
What happens on the day
You do not need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the work takes anything from a few hours to a full day, depending on how many windows for a typical job. In a smaller place like Broadfield, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
- Let us know about earlier repairs to the joints
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.
Related advice
Sand mastic for homes and businesses in Broadfield
Silicone on a period window often looks wrong and is not always the right material. Sand mastic is the traditional choice, and we can replace one with the other. Common call-outs are for gaps between timber frames and stone or brick and failed mastic on an exposed elevation, on stone surrounds, period & listed homes and brick reveals.
Many houses in smaller places like Broadfield have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Broadfield (RH11, RH10)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Nearby places to Broadfield
More services for Broadfield
Signs you need sand mastic in Broadfield
Timber frames move with the seasons. The movement cracks the mastic little by little.
The most common problems we see are:
- Cement or filler used on old window joints that has cracked
- Mastic dropping out of the joint
- Cracked mastic round a front door frame
- Gaps where the frame meets the masonry
If you let a flat or house near Crawley station, any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- What happens if the job turns out different
- Which colour the sealant will be
- How long the guarantee is
- Are they insured?
Why it’s worth doing now in Broadfield
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new work lasts. Around Broadfield, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
The cost depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Why us?
- Arbo and Everbuild products
- We’re fully insured
- A 12-month guarantee on all work
- 20+ years of sealant experience
See our cost guide and customer reviews.
Windows and doors in Broadfield
With historic houses such as Tyes Place (about 4.4 miles south-east) nearby, there’s older building stock in the area around Broadfield 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. Crawley, which Broadfield is part of, is one of England’s post-war new towns. With many homes from the post-war decades, replacement windows and doors are common. That mastic ages as well, and sills and frame heads are where leaks start.
If you live in an older home near Christ The Lord, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Seymour Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Broadfield is about 1 mile south-west of Crawley, in West Sussex. Jobs in Broadfield get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Broadfield is one of 371 towns and villages in West Sussex we cover for sand mastic.
Work in RH11 and RH10 works the same way as everywhere else we cover. That includes homes and businesses on Terry Road, Hobbs Road and Clark Road. Nearby, we also carry out sand mastic in Kilnwood Vale (2 miles west), Colgate (2 miles south-west), Faygate (2 miles west), Handcross (3 miles south) and Plummers Plain (4 miles south). Larger places within reach include Horsham (5 miles west), Haywards Heath (8 miles south-east), Burgess Hill (10 miles south), East Grinstead (9 miles east), Billingshurst (12 miles south-west) and Roffey (4 miles west).
Around Broadfield
We work in homes and buildings around Cottesmore School, Target Hill Park and The New Moon pub, among other places. The closest station to Broadfield is Crawley station, about 1.4 miles north-east of the centre. Well-known places in the area include Crawley Hospital (1.5 miles north) and Crawley Museum (1.7 miles north-east). Open spaces near Broadfield include Tilgate Lake.
How the job changes by surface
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Stone surrounds
Stone surrounds suit sand mastic well. The finish blends with the masonry.
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Cracked or broken glass
- Decayed frames that need repair
- Whether work needs listed building consent
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Tenement windows
- Brick reveals
- Timber door frames
- Period & listed homes
- Sash and case windows
- Stone surrounds
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Landlords and agents in Broadfield can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
FAQs for Broadfield
Do older homes in Broadfield need their sealant replacing?
In most cases, yes, if it hasn’t been done for a while. Sealant doesn’t last for ever, and its life depends on use, cleaning and weather.
Is Broadfield within the area you cover?
Yes. Broadfield is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can I add another job to the visit?
Yes. More than one area can go on one quote.
How much does sand mastic cost in Broadfield?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before any work starts.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we are using.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
How long will you be here?
Typically it takes a few hours per window, depending on the condition of the joints. Larger jobs naturally take longer, and we will say how long yours will take.
What guarantee comes with the work?
Every job comes with our 12-month guarantee, and we are fully insured.