West Sussex · England
Chidham Sand Mastic
Window and door surrounds in Chidham need attention? We remove the old material, prepare the joints and seal them properly.
- Draughty sash windows at the surround
- Cracked mastic round a front door frame
- Mastic dropping out of the joint
FAQs for Chidham
Does the coastal weather in Chidham 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. The right product, a clean joint and the right depth all help it cope.
Can you help a landlord with a rental near Nutbourne station?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
How long does sand mastic take?
Most jobs take a few hours for a single window, longer for several, including preparation and clearing up. We will confirm how long when we quote.
Do you come to Chidham?
Yes. We are based in Crawley and work across South East England, London and Scotland, Chidham included.
How long does sand mastic take to harden?
A skin forms quite soon, but full hardening takes longer. We’ll explain what to expect before we leave.
How we handle sand mastic in Chidham
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we will explain which is best for yours. We work on period & listed homes, stone surrounds and timber door frames, and people most often call us about draughty sash windows at the surround and old cement repairs round a window that have failed.
Homes in small places like Chidham often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
We stand behind the work with a one-year guarantee.
- Place
- Chidham (PO18)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Windows and doors in Chidham
Chidham is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Chidham Parochial Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Nutbourne station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Chidham is about 4 miles west of Chichester, in West Sussex. We provide sand mastic to homeowners, landlords and businesses in Chidham. Our area takes in 371 places across West Sussex. For nearby work, see our Portsmouth page, about 9 miles away.
Postcode districts we cover here for sand mastic: PO18. Sand mastic is available to properties on Chidham Lane, Harbour Way and Cot Lane. Neighbouring places we cover for sand mastic include Nutbourne (1 mile north-west), Bosham (1 mile east), Broadbridge (1 mile east), Hambrook (1 mile north) and Bosham Hoe (2 miles south-east). Further out, we also cover Bognor Regis (9 miles east), Chichester (4 miles east), Selsey (8 miles south-east), Littlehampton (15 miles east), Emsworth (3 miles north-west) and Portfield (5 miles east).
Local landmarks in Chidham
In Chidham, that means homes and buildings near Bourne Community College and the streets around them. Chidham’s nearest station is Nutbourne station, roughly 1 mile north-west. Other landmarks nearby include Warblington Castle (4.1 miles west) and St Richard's Hospital (4.6 miles east). Not far away are Nutborne Marshes and Stoke Down.
Keeping the joints in good condition
Looking after new joints is easy:
- Avoid patching sand mastic with silicone
- Keep sills and gutters clear so water drains away
- Check with your local planning authority if your home is listed
- Plan mastic work ahead of painting
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.
Landlord and commercial work in Chidham
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Signs you need sand mastic in Chidham
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
If you can see any of these, it’s time to have the joints looked at:
- Mastic dropping out of the joint
- Modern sealant on a period surround
- Wind and rain getting in round a sash window
- Open joints round the window box
If you live in an older home near The Parish Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- How much experience the applicator has
- What product goes in the joint
- What preparation is included
- How the colour is chosen
How the visit works
There is not much for you to do on the day. Point us to the joints and we will get on with it. The job generally takes anything from a few hours to a full day, depending on how many windows from start to finish. Somewhere as small as Chidham, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Clear items away from the joints we’re working on
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or send us an email.
Read more
Also near Chidham
Other services in Chidham
Different surfaces, different methods
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
When it isn’t the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- Cracked or broken glass
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
Joints and surfaces we work on
- Tenement windows
- Brick reveals
- Sash and case windows
- Timber door frames
- Stone surrounds
- Period & listed homes
Leave it or put it right?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Older cottages and farmhouses around Chidham can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- Over 20 years’ experience
- Old sealant always removed completely
- Trusted Arbo and Everbuild sealants
- Rated 4.9 stars on Google
See what affects the cost and what customers say.