East Sussex · England
Sand mastic for sash & case windows in Boreham Street, East Sussex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Boreham Street, backed by a one-year guarantee. Ask us for a quote.
- Crumbling sand mastic round a window
- Draughts and rain around sash boxes
- Cracked mastic round a front door frame
Sand mastic for homes and businesses in Boreham Street
On many period windows, sand mastic looks right and suits the building. Newer frames normally get a flexible sealant instead, and we’ll talk through which suits your home. If you are dealing with draughts and rain around sash boxes and cracked mastic round a front door frame, we can help.
Outdoor sealant needs dry, clean surfaces, so work on frames around Boreham Street is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Boreham Street (BN27)
- Region
- East Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for sand mastic
There’s no set price list. What we look at:
- Any working-time requirements on site
- Mould in or behind the old joints
- The product the joint needs
- Access and height
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will go through it with you.
Helping us quote
Before you ask for a quote, have a think about:
- Any previous sealing or DIY work
- A few photos by email, if you can
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
Every job is quoted individually. Just phone 0345 464 0079 or drop us an email with the details, and photos are welcome.
Boreham Street homes and the weather
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Normans Bay station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Boreham Street is about 5 miles north-west of Bexhill-on-Sea, in East Sussex. Anywhere in BN27, we can carry out sand mastic at your property. 289 places in East Sussex are on our list. For nearby work, see our Brighton page, about 22 miles away.
Work in BN27 works the same way as everywhere else we cover. We cover properties on Boreham Lane, Wood Lane and Boreham Hill and the roads around them. Other places close to Boreham Street include Windmill Hill (1 mile north-west), Wartling (1 mile south-west), Flowers Green (2 miles west), Chapel Row (2 miles west) and Golden Cross (2 miles west). Within a short drive, we also cover Eastbourne (7 miles south-west), Hastings (9 miles east), Bexhill-on-Sea (5 miles south-east), Seaford (13 miles south-west), Hailsham (5 miles west) and Crowborough (15 miles north-west).
Local landmarks in Boreham Street
Typical jobs here are in homes near The Bulls Head Inn. Boreham Street’s nearest station is Normans Bay station, about 3.7 miles south of the centre. Well-known places in the area include Amberstone Hospital (4 miles west) and Herstmonceux Castle (1.3 miles south-west). Not far away are Gillham Wood.
Why act early in Boreham Street
If you are redecorating, renew the mastic first. Paint over cracked mastic will not stop the gaps and traditional guidance is to leave the new mastic unpainted. In a small place like Boreham Street, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first.
Why book with us
- Anti-fungal silicone where joints get wet
- ARBOMaster approved applicator
- Every job guaranteed for a year
- Neat joints and a tidy finish
Take a look at what affects the cost and what customers say.
What sealant work can’t fix
To be straight with you, there are a few things sealant won’t fix:
- Damaged stone surrounds
- Rotten sashes, sills or window boxes (a joiner’s job)
- Putty and glazing repairs
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Timber door frames
- Brick reveals
- Stone surrounds
- Tenement windows
- Period & listed homes
- Sash and case windows
Common problems we fix in Boreham Street
Timber swells and shrinks with the weather. That movement opens up the mastic joint little by little.
Look out for any of the following:
- Open joints round the window box
- Crumbling sand mastic round a window
- Mastic round period door frames that has failed
- Mastic that needs renewing before redecorating
In and around Boreham Street, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- Which colour the sealant will be
- When the joint can take water or movement
- Whether they’re fully insured
- Who does the work, and how experienced they are
What happens on the day
On the day, we start by going over the job with you. We protect the surfaces around the joints before any work begins. The work normally takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Boreham Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
- Tell us about any previous sealing or DIY attempts
Ask for a quote
Need a quote? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Different surfaces, different methods
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Questions from Boreham Street
Do you work for landlords with property near Normans Bay station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you cover smaller places like Boreham Street?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can I choose the sealant colour?
We’ll suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Do you have insurance?
Yes. We’re fully insured for every job we do.
Which is right for my windows, sand mastic or modern sealant?
It depends on the window. Period windows in stone or brick usually suit sand mastic and newer frames generally get a flexible sealant.
What guarantee comes with the work?
Our 12-month guarantee applies on every job.