West Sussex · England
Sand mastic for sash & case windows in Ifield, West Sussex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Ifield, with a one-year guarantee on every job. Call for a quick quote.
- Open joints round the window box
- Silicone on a period window that looks wrong
- Failed mastic on an exposed elevation
What we do, step by step
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 normally takes a few hours for a single window, longer for several. A visit to Ifield is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
For sand mastic in Ifield, call 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Related advice
How we handle sand mastic in Ifield
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. If you’re dealing with crumbling sand mastic round a window and window mastic to renew ahead of painting, we can put it right, whatever the surface.
Around Ifield, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
Big or small, you get the same 12-month guarantee.
- Location
- Ifield (RH11, RH10)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Towns and villages near Ifield
More services for Ifield
Landlords, agents and businesses in Ifield
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Why deal with it now?
If you’re redecorating, renew the mastic first. Paint over cracked mastic will not stop the gaps and traditional guidance is to leave the new mastic unpainted. In a smaller place like Ifield, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why book with us
- Every job guaranteed for a year
- Trusted Arbo and Everbuild sealants
- Over 20 years’ experience
- We’re fully insured
Take a look at our cost guide or our reviews.
Frames and glazing around Ifield
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Crawley, which Ifield 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. The mastic around replacement frames ages too, and gaps at sills and frame heads are where water gets in.
If you let a flat or house near Ifield station, any sash windows need sound mastic to keep draughts and rain out. In the older streets around St Margaret's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as St Margaret's CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Ifield is about 1 mile north-west of Crawley, in West Sussex. Homes, rented property, offices and hotels in Ifield can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Ifield is one of 371 places in West Sussex where we work for sand mastic.
Our applicators cover all of the RH11 and RH10 postcode area for sand mastic and the streets around it. If you need sand mastic at a property on Mill Lane, Hare Lane and Brock Road or anywhere close by, we can help. We also cover the places around Ifield: Gossops Green (1 mile south), Ifieldwood (1 mile west), Bewbush (1 mile south-west), Russ Hill (2 miles north-west) and Charlwood (2 miles north). Larger places within reach include Horsham (6 miles south-west), Haywards Heath (10 miles south-east), Burgess Hill (12 miles south), East Grinstead (9 miles east), Billingshurst (13 miles south-west) and Roffey (5 miles south-west).
Near you in Ifield
We work in homes and buildings around Ifield Community College, Target Hill Park and St Wilfrid's Catholic School, among other places. Ifield’s nearest station is Ifield station, roughly 0.6 miles south-west. A little further out are Crawley Hospital (0.6 miles south-east) and County Mall (1.2 miles south-east). Not far away are Tilgate Lake.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Have rotten timber repaired before new mastic goes in
- Leave the new mastic unpainted
- Check with your local planning authority if your home is listed
- Sort the mastic before the decorators arrive
Don’t touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
Honest limits
We will not take on work that will not last, so these are the limits:
- Putty and glazing repairs
- Whether work needs listed building consent
- Decayed frames that need repair
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Surfaces we seal
- Brick reveals
- Stone surrounds
- Period & listed homes
- Timber door frames
- Tenement windows
- Sash and case windows
What affects the cost of sand mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- Access and height
- Whether there’s mould to deal with
- Working hours on commercial sites
- The amount of work
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
Helping us quote
You don’t need to know the technical terms. Just tell us:
- The rough size of the job
- The address or postcode of the job
- Any access issues, like height or stairs
- If someone has resealed it before
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
Ifield: your questions answered
Should the sealant in an older Ifield home be renewed?
If it hasn’t been replaced for some years, it’s generally worth it. Sealant doesn’t last for ever, and its life depends on use, cleaning and weather, and many homes in Ifield may already be on their second or third set.
Will you come out to Ifield?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little.
Can I choose the sealant colour?
Usually, yes. Sealants come in white, clear, grey and other colours for many products, and we will agree it with you first.
How long does sand mastic take to go off?
A skin forms quite soon, but full hardening takes longer. We will explain what to expect before we leave.
Can you replace silicone on a period window with sand mastic?
Often, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new sealant bonds properly.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.