West Sussex · England
Sand Mastic in Emsworth
Specialist sand mastic for Emsworth: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Mastic round period door frames that has failed
- Draughty sash windows at the surround
- Mastic that needs renewing before redecorating
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Sand mastic in Emsworth
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We work on timber door frames, period & listed homes and sash and case windows, and common reasons people get in touch are open joints round the window box and window mastic to renew ahead of painting.
Homes around Emsworth range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Place
- Emsworth (PO10)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we’re called out for in Emsworth
Timber swells and shrinks with the weather. That movement opens up the mastic joint little by little.
Common reasons people contact us are:
- Mastic worn away on windows facing the weather
- Crumbling sand mastic round a window
- Window mastic to renew ahead of painting
- Modern sealant on a period surround
If you let a flat or house near Emsworth station, older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- Whether they’re fully insured
- Who does the work, and how experienced they are
- How the joint is cleaned and prepared
- Whether VAT is included
Emsworth: your questions answered
Is sand mastic in a coastal place like Emsworth any different?
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.
I let a flat near Emsworth station. Can you help?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Are you insured?
Yes, we are fully insured for domestic and commercial work.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you work in Emsworth?
Yes, we do. Our applicators work in Emsworth, and the service is the same as everywhere else.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
How we quote for sand mastic
You will get a clear quote before work begins. It takes into account:
- How easy the joints are to reach
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
- The type of property
- Roughly how big the job is
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or email us.
How to look after the new joints
So the new joints stay in good condition:
- Leave the new mastic unpainted
- Keep sills and gutters clear so water drains away
- Inspect the joints round the windows every year or so
- Keep modern sealant off the mastic
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
What we do, step by step
You don’t need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a single window, longer for several for a typical job. In a smaller place like Emsworth, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
Getting a quote
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we will take it from there.
Related advice
Emsworth homes and the weather
Emsworth 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. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as St James Church of England Controlled Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Church of St James, the joint between an old wall and a newer frame is generally the first place rain gets in.
Emsworth is about 2 miles east of Havant, in West Sussex. Wherever you are in the PO10 postcode area, we can carry out sand mastic at your property. Our area takes in 371 places across West Sussex, from the larger towns to small villages. Our Portsmouth page covers work nearby, about 7 miles away.
Every address in PO10 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on High Street, Beacon Square and Seagull Lane or a nearby road, our applicators can take on the job. With the A27 and A259 close by, Emsworth is easy for our applicators to reach. Other places close to Emsworth include Lumley (1 mile east), Westbourne (1 mile north-east), Denvilles (1 mile west), Southbourne (1 mile east) and Warblington (2 miles south-west). Within a short drive, we also cover Bognor Regis (12 miles east), Chichester (7 miles east), Selsey (10 miles south-east), Portfield (8 miles east), Yapton (14 miles east) and East Wittering (7 miles south-east).
Local landmarks in Emsworth
Typical jobs here are in homes near The Kings Arms, Eames Farm and Bourne Community College, among other places. Emsworth has its own railway station: Emsworth station. Nearby you will also find Havant War Memorial Hospital (2.2 miles west) and Emsworth Museum (within half a mile south). Green spaces nearby include Brook Meadow (Emsworth).
Places near Emsworth
Other services in Emsworth
What sealant work cannot fix
Before you book, it’s worth knowing the limits too:
- Damaged stone surrounds
- Putty and glazing repairs
- Decayed frames that need repair
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in Emsworth
- Sash and case windows
- Period & listed homes
- Timber door frames
- Brick reveals
- Stone surrounds
- Tenement windows
Landlord and commercial work in Emsworth
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Letting agents and landlords in Emsworth can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.