West Sussex · England
Sand Mastic in Petworth
Our applicators work in Petworth 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.
- Mastic dropping out of the joint
- Mastic round period door frames that has failed
- Failed mastic on an exposed elevation
About our sand mastic in Petworth
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. We rake it out and renew it so the surround looks right again. We work on brick reveals, stone surrounds and timber door frames, and the jobs we see most are mastic that needs renewing before redecorating and gaps between timber frames and stone or brick.
Somewhere as small as Petworth, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
All of our work is guaranteed for twelve months, in Petworth and everywhere else we cover.
- Location
- Petworth (GU28)
- Region
- West Sussex
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to a full day, depending on how many windows and we leave things clean and tidy. Somewhere as small as Petworth, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
- Keep pets and children clear of the area while we work
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved.
Related advice
Also near Petworth
Other services in Petworth
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Avoid patching sand mastic with silicone
- Renew mastic before redecorating the windows
- Check with your local planning authority if your home is listed
- Have rotten timber repaired before new mastic goes in
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
What affects the cost of sand mastic
You’ll get a clear quote before we start. It takes into account:
- The number of rooms or windows
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email and we’ll talk you through it.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
Need a quote? Please call 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Common questions in Petworth
I let a flat near Pulborough station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover Petworth for sand mastic?
Yes. Our work covers London and the South East, and Petworth is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
How long does the job take?
A typical job takes a few hours per window, depending on the condition of the joints. We’ll confirm how long when we quote.
Are you insured?
Yes, we’re fully insured for every job we do.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little.
What should I tell you?
Tell us what needs doing and where, with photos by email if possible. If we need more, we will ask.
Which is right for my windows, sand mastic or modern sealant?
We’ll help you decide. Sand mastic suits many period homes and newer frames suit modern sealant.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we are using and why.
When to call us in Petworth
Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
The problems people normally mention when they call include:
- Failed mastic on an exposed elevation
- Cracked mastic round a front door frame
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
Rented homes near Pulborough station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- How the colour is chosen
- What the cure time is
- Whether VAT is included
- What happens if they find a problem under the old sealant
Why deal with it now?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall, so dealing with it now protects both. Where a wall is exposed, as many are in small places like Petworth, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why book with us
- A 12-month guarantee on all work
- Arbo and Everbuild products
- Sanitary silicone with an anti-fungal additive in wet areas
- Approved under the ARBOMaster scheme
Windows and doors in Petworth
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. Historic houses like Petworth House (about 0.3 miles north) are a reminder that the area around Petworth has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you live in an older home near Sacred Heart Church, the joint between an old wall and a newer frame is usually the first place rain gets in. If you look after a building such as Petworth Cof E Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Petworth is about 12 miles north-east of Chichester, in West Sussex. If you need sand mastic in Petworth, please ring 0345 464 0079 or send us an email for a quick quote. We cover West Sussex from our Crawley base, Petworth included. Petworth is one of 371 towns and villages in West Sussex where we work for sand mastic. You can also see our page for Crawley, roughly 20 miles from Petworth.
We cover every part of GU28 for sand mastic. You’ll find streets such as Station Road, Back Lane and Rosemary Lane. Main roads around Petworth include the A272 and A283, which makes travel easy. We also cover the places around Petworth: Hampers Green (1 mile north), Haslingbourne (1 mile south-east), Tillington (1 mile west), Rotherbridge (1 mile south-west) and Upperton (1 mile north-west). Within a short drive, we also cover Horsham (14 miles north-east), Worthing (14 miles south-east), Bognor Regis (14 miles south), Chichester (12 miles south-west), Littlehampton (12 miles south) and Rustington (13 miles south).
Landmarks near Petworth
Around Petworth, our work takes us to homes and buildings near The Old Square Tavern, among other places. For rail, the closest station is Pulborough station, roughly 4.4 miles south-east of the centre. Nearby you will also find Coates Castle (2.6 miles south) and Coultershaw Heritage Site (1.2 miles south). The countryside around Petworth includes The Mens.
When something else is needed
In fairness, some problems need a different trade:
- Damaged stone surrounds
- Putty and glazing repairs
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before booking.
Where we work in Petworth
- Tenement windows
- Timber door frames
- Period & listed homes
- Sash and case windows
- Brick reveals
- Stone surrounds