West Sussex · England
Sand mastic for sash & case windows in Plaistow, West Sussex
Our applicators work in Plaistow on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Wind and rain getting in round a sash window
- Open joints round the window box
- Mastic worn away on windows facing the weather
How we handle sand mastic in Plaistow
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. If you have gaps where the frame meets the masonry and mastic that needs renewing before redecorating, we can help.
Around Plaistow, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Plaistow (RH14)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work cannot fix
Sealant is not the answer to every problem, and we’ll tell you before we start. It will not solve:
- Whether work needs listed building consent
- Putty and glazing repairs
- Sashes that need overhauling
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before you book.
Surfaces we seal
- Timber door frames
- Period & listed homes
- Tenement windows
- Stone surrounds
- Sash and case windows
- Brick reveals
What sand mastic looks like in Plaistow
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.
If you look after a building such as Plaistow and Kirdford Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Plaistow is about 11 miles west of Horsham, in West Sussex. Across the RH14 area, our applicators can take on sand mastic. Plaistow is one of 371 towns and villages in West Sussex we cover. You can also see our page for Crawley, about 17 miles away.
We cover every part of the RH14 postcode area for sand mastic. Streets in the area include The Street, Loxwood Road and Oakfield, all of which we cover. Neighbouring places we cover for sand mastic include Durfold Wood (1 mile north-west), Ifold (1 mile east), Mackerel's Common (2 miles south), Loxwood (2 miles east) and Kirdford (2 miles south). We also work in nearby towns such as Horsham (11 miles east), Storrington (11 miles south-east), Billingshurst (6 miles south-east), Bewbush (15 miles east), Roffey (12 miles east) and Southwater (10 miles east).
Around Plaistow
Not far away are Shillinglee Lake.
FAQs for Plaistow
Is Plaistow in your area for sand mastic?
Yes, Plaistow is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear price.
Is Plaistow within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can tenants book the work?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
How long does the job take?
That depends on the amount of work, but most jobs take a few hours per window, depending on the condition of the joints. We’ll tell you when we quote.
How much does sand mastic cost in Plaistow?
It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or send us an email with a short description of the job.
When to call us in Plaistow
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.
These are the problems we are asked about most:
- Mastic round period door frames that has failed
- Draughts and rain around sash boxes
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic worn away on windows facing the weather
If you live in an older home near Holy Trinity Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before you book
- Is the old sealant removed completely?
- What preparation is included
- What the cure time is
- Are they insured?
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Quotes for sand mastic in Plaistow
For a quick quote, just ask. The main things that affect it are:
- Whether the work is at height
- The size of the job
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- Whether it has been sealed before
- Roughly how big the job is
- How we’d reach the joints
- Where the property is
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job, and pictures are welcome.
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Towns and villages near Plaistow
Also in Plaistow
How the job changes by surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is generally favoured.
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Plaistow, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
Get a quote
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we will come back to you with a quote.