West Sussex · England
Sand Mastic in Hunston
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Hunston, backed by a 12-month guarantee. Call for a quick quote.
- Tired mastic found when preparing windows for paint
- Draughty sash windows at the surround
- Cement or filler used on old window joints that has cracked
For landlords and businesses
We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured for the work.
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
Sand mastic in Hunston
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. If you’re dealing with modern sealant on a period surround and weathered mastic on the most exposed windows, we can help, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Hunston is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Hunston (PO20)
- Region
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Quotes for sand mastic in Hunston
We quote each job individually. This is what makes a difference:
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- The number and length of the joints
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.
What to tell us for a quote
To help us quote quickly, let us know:
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
- If someone has resealed it before
- Photos by email, if that is easy
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Renew mastic before redecorating the windows
- Avoid heavy scraping on the mastic joint
- Leave the new mastic unpainted
- Avoid patching sand mastic with silicone
Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
What sand mastic looks like in Hunston
Hunston is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. With historic houses such as Goodwood House (about 4.5 miles north) nearby, there’s older building stock in the area around Hunston as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
In the older streets around St Leodegar's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Letting a property close to Chichester station? Then any sash windows need sound mastic to keep draughts and rain out.
Hunston is about 2 miles south of Chichester, in West Sussex. Jobs in Hunston get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Hunston is one of 371 places in West Sussex we cover for sand mastic. For nearby work, see our Portsmouth page.
All of PO20 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Heath Close, Westlands Road and St Leodegars Way or a nearby road, we can help. Neighbouring places we cover for sand mastic include Donnington (1 mile west), North Mundham (1 mile east), Runcton (1 mile east), Portfield (2 miles north) and Chichester (2 miles north). We also work in nearby towns such as Bognor Regis (4 miles east), Selsey (5 miles south), Littlehampton (11 miles east), Emsworth (8 miles west), Rustington (12 miles east) and Angmering (13 miles east).
What’s near Hunston
In Hunston, that means homes and buildings near Chichester High School For Girls and The Spotted Cow Public House. The closest station to Hunston is Chichester station, roughly 1.5 miles north. Nearby you will also find St Richard's Hospital (2.3 miles north) and Chichester Castle (2 miles north).
Nearby places to Hunston
Other services in Hunston
What we do, step by step
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours per window, depending on the condition of the joints. Somewhere like Hunston needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Related advice
Honest limits
A few problems are outside what sealant work can do:
- Broken panes
- Planning or listed building consent (your local planning authority decides)
- Sashes that need overhauling
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before you book.
Where we work in Hunston
- Brick reveals
- Timber door frames
- Period & listed homes
- Sash and case windows
- Tenement windows
- Stone surrounds
Common questions in Hunston
Does the coastal weather in Hunston affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can you help a landlord with a rental near Chichester station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Can old silicone round a sash window be swapped for sand mastic?
Yes, we do this often. All the old silicone is removed first so the mastic can sit properly.
How long does sand mastic take to go off?
It forms a skin fairly soon and it hardens fully over a longer time. Timing depends on the weather and the joint.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can you match the sealant colour?
Generally, yes. White, clear and grey are common, and other colours are available for many products, and we will agree it with you first.
What we’re called out for in Hunston
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
It’s worth asking for a quote if you see:
- Window mastic to renew ahead of painting
- Silicone on a period window that looks wrong
- Wind and rain getting in round a sash window
- Gaps between timber frames and stone or brick
Managing a site like North Mundham Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- Is VAT in the price?
- When the joint can take water or movement
- Who turns up on the day
- What insurance they hold
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.