Brighton and Hove · England
Brunswick Sand Mastic
We cover Brunswick for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Tired mastic found when preparing windows for paint
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Brunswick and across Brighton and Hove. Several sites can be quoted together, and we are fully insured.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
About our sand mastic in Brunswick
We work across Brunswick renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand for a neat, traditional finish. We work on brick reveals, timber door frames and sash and case windows, and the jobs we see most are cracked mastic round a front door frame and wind and rain getting in round a sash window.
Homes around Brunswick 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.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Brunswick (BN1, BN3, BN50)
- Wider area
- Brighton and Hove
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Brunswick
Other services in Brunswick
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Don’t run silicone over sand mastic
- Clear gutters so water does not pour onto the windows
- Ask a joiner to look at soft timber first
- Ask us before painting near the mastic
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Different surfaces, different methods
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
FAQs for Brunswick
Do you work for landlords with property near Brighton station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Do you cover smaller places like Brunswick?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you guarantee sand mastic work?
There’s a 12-month guarantee on every job, sand mastic included.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we are using.
What’s sand mastic made of?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
Can you match the sealant colour?
In most cases you can choose. We’ll explain which colours are available and agree one before any work starts.
How long does sand mastic take to harden?
It skins over fairly quickly but takes longer to harden fully. We will explain what to expect before we leave.
Why act early in Brunswick
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. Around Brunswick, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Combining jobs into one visit normally makes better use of the time than several visits. You will get one clear quote for the whole job.
Why us?
- Experience in homes, commercial sites and hotels
- An ARBOMaster approved applicator
- More than 20 years in sealant work
- 12-month guarantee on every job
Read what affects the cost or what customers say.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours per window, depending on the condition of the joints. Parking around Brunswick is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- 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.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Tell us about any water getting in
- Mention any parking rules near the property
- Clear the area around the work
How to get a quote
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
Advice
What affects the cost of sand mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- How much there is to do
- The product the joint needs
- Mould in or behind the old joints
- Any working-time requirements on site
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
To make quoting easier, please include:
- The address or postcode of the job
- The rough size of the job
- Photos by email, if that’s easy
- Whether it’s a home or a business
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Sand mastic in Brunswick: local notes
Brunswick is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Historic houses like Royal Pavilion (about 0.7 miles east) are a reminder that the area around Brunswick has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For landlords with property near Brighton station, any sash windows need sound mastic to keep draughts and rain out. In the older streets around St Stephen's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as St Mary Magdalen Catholic Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Brunswick is about 1 mile south-west of Brighton, in Brighton and Hove. Every kind of property in Brunswick is covered for sand mastic. The work is guaranteed for a year. We cover 30 towns and villages across Brighton and Hove, large and small.
All of BN1, BN3 and BN50 is within our area for sand mastic, from the main roads to the quietest streets. Whether your property is on Farm Road, York Road and Powis Road or a nearby road, we can help. Close by, we work in Seven Dials (1 mile north-east), West Hill (1 mile north-east), Prestonville (1 mile north), Hove (1 mile north-west) and Carlton Hill (1 mile east). Within a short drive, we also cover Hangleton (3 miles north-west), Patcham (3 miles north), Hollingbury (3 miles north), Bevendean (3 miles north-east), Saltdean (5 miles east) and East Saltdean (6 miles east). Brunswick is among the bigger towns we cover in Brighton and Hove.
Around Brunswick
We work in homes and buildings around St. Ann's Well Gardens, Maris & Otter pub and The Drive Prep School. For rail, the closest station is Brighton station, roughly 0.6 miles north-east of the centre. Well-known places in the area include Old Police Cells Museum (0.7 miles south-east) and Churchill Square (within half a mile east). Not far away are Whitehawk Hill and Newmarket Hill.