West Sussex · England
Sand mastic for sash & case windows in Hambrook, West Sussex
Sand mastic in Hambrook from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Failed mastic on an exposed elevation
- Tired mastic found when preparing windows for paint
- Cement or filler used on old window joints that has cracked
About our sand mastic in Hambrook
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes, where modern sealant can look out of place. If you are dealing with weathered mastic on the most exposed windows and patchy fillers round a sash window, we can help.
Homes in small places like Hambrook often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.
- Location
- Hambrook (PO18)
- Wider area
- West Sussex
- Cover
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How the job changes by surface
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Sash cords, weights and draught-proofing of the sashes
- Timber that has rotted
- Masonry that needs repairing
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Period & listed homes
- Sash and case windows
- Brick reveals
- Stone surrounds
- Timber door frames
- Tenement windows
Frames and glazing around Hambrook
Hambrook is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Warblington Castle (about 3.8 miles west) nearby, there’s older building stock in the area around Hambrook as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Nutbourne station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. If you live in an older home near St Wilfrid's Church and Hall, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Hambrook is about 5 miles west of Chichester, in West Sussex. Every kind of property in Hambrook can book us for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. Hambrook is one of 371 towns and villages in West Sussex we cover. For nearby work, see our Portsmouth page, about 9 miles away.
Work in PO18 works the same way as everywhere else we cover. Whether your property is on Kingfisher Close, Dragonfly Grove and Pipistrelle Way or anywhere close by, we can help. Other places close to Hambrook include Nutbourne (1 mile south), Funtington (1 mile north-east), West Ashling (1 mile east), Chidham (1 mile south) and Racton (2 miles north). Further out, we also cover Bognor Regis (10 miles south-east), Chichester (5 miles east), Selsey (9 miles south-east), Emsworth (3 miles west), Portfield (5 miles east) and Yapton (12 miles east).
Near you in Hambrook
In Hambrook, that means homes and buildings near Bourne Community College and the streets around them. Hambrook’s nearest station is Nutbourne station, roughly 0.6 miles south. Well-known places in the area include Havant War Memorial Hospital (4.7 miles west) and Emsworth Museum (2.5 miles west). Green spaces nearby include Nutborne Marshes and Stoke Down.
Hambrook: your questions answered
Will you come out to Hambrook?
Yes. Hambrook is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Does the coastal weather in Hambrook 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.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do.
Which is right for my windows, sand mastic or modern sealant?
We will help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
What is sand mastic?
Sand plus a binder based on linseed oil. It’s applied by hand and shaped to suit the surround.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
How long does sand mastic take?
A typical job takes anything from a few hours to a full day, depending on how many windows, including preparation and clearing up. We’ll confirm how long when we quote.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
What we are called out for in Hambrook
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
Any of these means the joints need attention:
- Wind and rain getting in round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
- Patchy fillers round a sash window
- Gaps between timber frames and stone or brick
For site and facilities teams at buildings such as Chidham Parochial Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Before booking anyone
- Whether they seal over old material or remove it
- What guarantee comes with the work
- What product goes in the joint
- What the cure time is
Quotes for sand mastic in Hambrook
Call for a quick quote. What matters most is:
- The size of the job
- Access and height
- Mould in or behind the old joints
- Any working-time requirements on site
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
To help us quote quickly, let us know:
- If someone has resealed it before
- Any access issues, like height or stairs
- What’s wrong with the joints now
- Roughly how big the job is
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you’re ready, phone 0345 464 0079 or send us an email.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Why act early in Hambrook
Not every filler suits an old window surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. In a small place like Hambrook, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why Hambrook customers choose us
- Quality sealants from Arbo and Everbuild
- More than 20 years in sealant work
- We never seal over old sealant
- One-year guarantee on every job
Read our cost guide or customer reviews.
Also near Hambrook
Other services in Hambrook
How it works
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. The job normally takes a few hours per window, depending on the condition of the joints, and we tell you how long to leave it before we go. Somewhere like Hambrook needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- On commercial sites, let us know about site rules
- Tell us about any water getting in
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.