Hampshire · England
Sand Mastic in Chithurst
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Chithurst, with a one-year guarantee on every job. Ask us for a quote.
- Draughty sash windows at the surround
- Mastic dropping out of the joint
- Gaps round a timber door in stone or brick
FAQs for Chithurst
Do you work for landlords with property near Liphook station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you cover Chithurst for sand mastic?
Yes. We work across London and the South East, and Chithurst is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Can you replace silicone on a period window with sand mastic?
Yes. The silicone is cut out and the joint cleaned, then point it with sand mastic.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
Is sand mastic better than silicone for my windows?
Sand mastic normally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Can I paint the new mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we’ll advise.
Sand mastic for homes and businesses in Chithurst
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you have window mastic to renew ahead of painting and silicone on a period window that looks wrong, we can put it right.
Outdoor sealant needs dry, clean surfaces, so work on frames around Chithurst is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Big or small, it’s backed by our one-year guarantee in Chithurst and across Hampshire.
- Where
- Chithurst (GU31)
- Region
- Hampshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Sand mastic in Chithurst: local notes
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. With historic houses such as Cowdray House (about 3.1 miles east) nearby, there’s older building stock in the area around Chithurst as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Liphook station, any sash windows need sound mastic to keep draughts and rain out. If you look after a building such as Stedham Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Chithurst is about 6 miles east of Petersfield, in Hampshire. Whether you’re in the middle of Chithurst or further out, we cover sand mastic for every kind of property. Chithurst is one of 683 towns and villages in Hampshire where we work for sand mastic. Portsmouth is on our list too, about 18 miles from Chithurst.
We cover every part of the GU31 postcode area for sand mastic and the streets around it. We also cover Trotton Marsh (1 mile north-west), Borden (1 mile north-west), Rogate (2 miles west), Milland (2 miles north) and Rake (4 miles north-west). We also work in nearby towns such as Havant (13 miles south-west), Horndean (11 miles south-west), Alton (13 miles north-west), Waterlooville (13 miles south-west), Petersfield (6 miles west) and Purbrook (14 miles south-west).
Local landmarks in Chithurst
We work in homes and buildings around The Keeper's Arms Public House, among other places. For rail, the closest station is Liphook station, about 4.9 miles north of the centre. A little further out are Midhurst Museum (2.9 miles east) and Midhurst Community Hospital (2.9 miles east). For a walk, there’s Wheeler's Down and Iping and Stedham Commons.
Surface by surface
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we will confirm access.
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.
What affects the cost of sand mastic
For a quick quote, just ask. What matters most is:
- Working hours on commercial sites
- How many rooms, windows or areas are involved
- Whether the work is at height
- Whether old sealant or filler has to be cut out
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Whether it’s a home or a business
- Photos by email, if that is easy
- The problem you’ve noticed
- Where the property is
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
For landlords and businesses
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
The process
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. The work usually takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Chithurst, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Mention any parking rules near the property
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Related advice
Looking after it afterwards
Aftercare is simple:
- Take care around the mastic when scraping paint
- Ask the planning authority about consent for listed or conservation-area homes
- Ask a joiner to look at soft timber first
- Renew mastic before redecorating the windows
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Common problems we fix in Chithurst
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
The most common problems we see are:
- Weathered mastic on the most exposed windows
- A silicone bead on a sash window that spoils the look
- Cement or filler used on old window joints that has cracked
- Gaps where the frame meets the masonry
Homes close to Chithurst Church include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Questions to ask before booking
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
- How hidden problems are handled