Hampshire · England
Sand mastic for sash & case windows in Brook, Hampshire
Specialist sand mastic for Brook: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Patchy fillers round a sash window
- Mastic dropping out of the joint
- Gaps round a timber door in stone or brick
How we handle sand mastic in Brook
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on brick reveals, stone surrounds and tenement windows, and common reasons people get in touch are old cement repairs round a window that have failed and a silicone bead on a sash window that spoils the look.
Outdoor sealant needs dry, clean surfaces, so work on frames around Brook is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Whatever the size of the job, it’s backed by our 12-month guarantee.

- Where
- Brook (SO43)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
When something else is needed
Before booking, it’s worth knowing the limits too:
- Sashes that rattle, stick or won’t open
- Planning or listed building consent (your local planning authority decides)
- Masonry that needs repairing
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Where we work in Brook
- Timber door frames
- Stone surrounds
- Sash and case windows
- Tenement windows
- Brick reveals
- Period & listed homes
Surface by surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Timber door frames
Round a period front door, sand mastic gives the right look.
Keeping the joints in good condition
Aftercare is simple:
- Renew mastic before redecorating the windows
- Inspect the joints round the windows every year or so
- Find out about consent before window work on a listed home
- Leave the new mastic unpainted
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look before trying a quick fix.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Landlords, agents and businesses in Brook
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
We also work for property managers and facilities teams in Brook and across Hampshire. Several sites can go on one quote, and we are fully insured.
Common questions in Brook
Do you cover smaller places like Brook?
Yes. Brook is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Brook for sand mastic?
Yes. Our work covers London and the South East, and Brook is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Is consent needed for window work on a listed home?
Check with your local planning authority. They’ll tell you if consent is needed.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
Can you quote for more than one area?
Yes, we can. More than one area can go on one quote.
Can I paint the new mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a single window, longer for several. Somewhere like Brook 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.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Advice
Windows and doors in Brook
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Landford Manor (about 4.1 miles north) nearby, there’s older building stock in the area around Brook 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’s traditional sand mastic.
If you let a flat or house near Ashurst New Forest station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Brook is about 4 miles west of Totton, in Hampshire. If you need sand mastic in Brook, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Hampshire from our Crawley base, Brook included. Brook is one of 683 places in Hampshire where we work for sand mastic. You can also see our page for Southampton, roughly 9 miles from Brook.
Jobs for sand mastic in SO43 works the same way as everywhere else we cover. Close by, we work in Wittensford (1 mile east), Cadnam (1 mile east), Minstead (2 miles south), Newbridge (2 miles north-east) and Bramshaw (2 miles north). We also work in nearby towns such as Eastleigh (12 miles east), Totton (4 miles east), Chandler's Ford (11 miles north-east), Hedge End (13 miles east), Lymington (12 miles south) and Romsey (7 miles north-east).
Near you in Brook
Locally, jobs take us to homes and businesses close to Green Dragon Inn, among other places. Brook’s nearest station is Ashurst New Forest station, roughly 4.2 miles south-east of the centre. Well-known places in the area include Tatchbury Mount Hospital (3.5 miles east). For a walk, there’s Copythorne Common.
How we quote for sand mastic
The quote reflects the job in front of us. We take into account:
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
- Whether the work is at height
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- Where the property is
- Any access issues, like height or stairs
- Roughly how big the job is
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Do you need sand mastic in Brook?
Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.
People generally contact us after spotting one of these:
- Mastic that needs renewing before redecorating
- Weathered mastic on the most exposed windows
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
Landford Manor, about 4.1 miles north, is one of the historic houses in the wider area around Brook.
Questions to ask before booking
- How long the guarantee is
- How the surfaces are prepared before sealing
- How the colour is chosen
- Whether they seal over old material or remove it
