Hampshire · England
Broxhill Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Broxhill, with a one-year guarantee on every job. Call for a quick quote.
- Gaps where the frame meets the masonry
- Old cement repairs round a window that have failed
- Mastic that needs renewing before redecorating
How we handle sand mastic in Broxhill
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. We rake it out and renew it and tidies the surround. If you’re dealing with mastic round period door frames that has failed and draughty sash windows at the surround, we can put it right, on tenement windows, period & listed homes and brick reveals alike.
Around Broxhill, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
We stand behind the work with a one-year guarantee, so you’re covered after we have gone.
- Where
- Broxhill (SP6, BH21)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we’re called out for in Broxhill
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint, and they generally need raking out.
Signs it’s time to call us include:
- Old cement repairs round a window that have failed
- Silicone on a period window that looks wrong
- Mastic that needs renewing before redecorating
- Crumbling sand mastic round a window
In and around Broxhill, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- What product goes in the joint
- Are they insured?
- How long the guarantee is
- How the surfaces are prepared before sealing
When it is not the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- Sashes that rattle, stick or will not open
- Timber that has rotted
- Putty and glazing repairs
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Broxhill
- Timber door frames
- Brick reveals
- Sash and case windows
- Tenement windows
- Stone surrounds
- Period & listed homes
What sand mastic looks like in Broxhill
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Church of St James, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Broxhill is in Hampshire. We carry out sand mastic for householders, landlords and businesses in Broxhill, as part of our work across Hampshire. Broxhill is one of 683 places in Hampshire we cover. Our Southampton page covers work nearby (21 miles or so).
We cover every part of SP6 and BH21 for sand mastic and the streets around it. Neighbouring places we cover for sand mastic include Alderholt (2 miles east), Damerham (2 miles north), Sandleheath (2 miles north-east), Ashford (3 miles east) and Rockbourne (4 miles north). Within a short drive, we also cover New Milton (14 miles south-east), Ringwood (6 miles south-east), Barton on Sea (15 miles south-east), Ashley (14 miles south-east), Fordingbridge (3 miles east) and St Leonards (6 miles south).
Local landmarks in Broxhill
A little further out are Cranborne Castle Hill (2.1 miles west) and Fordingbridge Museum (3.6 miles east). Open spaces near Broxhill include Blashford Lakes.
Questions from Broxhill
Is there a guarantee on sand mastic in Broxhill?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Will you come out to Broxhill?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is consent needed for window work on a listed home?
Yes, it’s worth checking. Your local planning authority can say if consent is needed for listed or conservation-area properties.
How much does sand mastic cost in Broxhill?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or drop us an email and let us know what needs doing and where.
Is it worth trying it myself?
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.
How long does the job take?
It depends on the size of the job, but most jobs take anything from a few hours to a full day, depending on how many windows. We will give you a better idea when we quote.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Should I use sand mastic or silicone?
That depends on your windows. Period windows in stone or brick generally suit sand mastic and newer frames normally get a flexible sealant.
Keeping the joints in good condition
Aftercare is simple:
- Avoid heavy scraping on the mastic joint
- Get any rot dealt with first
- Ask the planning authority about consent for listed or conservation-area homes
- Do not paint over the new mastic
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Landlords, agents and businesses in Broxhill
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.
Also near Broxhill
What else we do in Broxhill
Leave it or put it right?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in and new mastic seals them. In a small place like Broxhill, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
What you get with us
- 4.9 on Google from 180+ five-star reviews
- Every job guaranteed for a year
- Anti-fungal sanitary silicone in wet areas
- Homes, businesses and hotels
Read our cost guide or our reviews.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
What happens on the day
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Broxhill, 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.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
- Keep children and pets away from the work area
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, ring 0345 464 0079 or send us an email.