Kent · England
Sand mastic for sash & case windows in Broad Street, Kent
We cover Broad Street for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Mastic worn away on windows facing the weather
- Modern sealant on a period surround
- Tired mastic found when preparing windows for paint
Why it’s worth doing now in Broad Street
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. Around Broad Street, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- Homes, businesses and hotels
- We leave the area clean and tidy
- 12-month guarantee on every job
- We’re fully insured
How we handle sand mastic in Broad Street
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. If you have weathered mastic on the most exposed windows and silicone on a period window that looks wrong, we can put it right.
Somewhere as small as Broad Street, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
Whatever the size of the job, you get the same 12-month guarantee.
- Location
- Broad Street (ME17)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we are called out for in Broad Street
Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
Common reasons people contact us include:
- Mastic that needs renewing before redecorating
- Silicone on a period window that looks wrong
- Draughty sash windows at the surround
- Gaps where the frame meets the masonry
Rented homes near Hollingbourne station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- Is VAT in the price?
- Are they insured?
- Whether you can choose the colour
- How the surfaces are prepared before sealing
Your questions about sand mastic in Broad Street
Is Broad Street within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Hollingbourne station?
Yes. We work for landlords and agents as well as householders. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Should I try DIY first?
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 will you be here?
Most jobs take a few hours for a single window, longer for several. We’ll confirm how long when we quote.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
Where are you based?
We are based in Crawley, and we work across South East England, London and Scotland.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like, but they decide.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Broad Street homes and the weather
Rainfall in the South East is lower than in much 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 Leeds Castle (about 2.3 miles south) nearby, there’s older building stock in the area around Broad Street 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.
Historic houses such as Leeds Castle, about 2.3 miles south, show how far back building around Broad Street goes.
Broad Street is about 4 miles east of Maidstone, in Kent. For sand mastic in and around Broad Street, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover Kent, Broad Street included. 922 places in Kent are on our list. For nearby work, see our Chelmsford page, about 32 miles away.
All of ME17 is covered for sand mastic. If you need sand mastic at a property on Broad Street Hill and Pilgrims Way or a nearby road, we can help. We also cover the places around Broad Street: Hucking (1 mile north-east), Hollingbourne (1 mile south-east), Eyhorne Street (1 mile south), Ashbank (2 miles south) and Bicknor (2 miles north-east). Larger places within reach include Maidstone (4 miles west), Ashford (14 miles south-east), Sittingbourne (6 miles north-east), Gravesend (15 miles north-west), Faversham (12 miles east) and Minster (12 miles north-east).
Near you in Broad Street
We work in homes and buildings around Hook and Hatchet pub and White Horse Wood. Broad Street’s nearest station is Hollingbourne station, roughly 1.1 miles south. Well-known places in the area include Leeds Castle (2.3 miles south) and KIMS hospital (2.9 miles west). The countryside around Broad Street includes Detling Hill.
How the visit works
Once we’re on site, 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. For a village or hamlet like Broad Street, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
How to get a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Related advice
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Keep sills and gutters clear so water drains away
- Don’t run silicone over sand mastic
- Check the mastic when you check the paintwork
- Get any rot dealt with first
Don’t touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.
DIY versus a professional finish
If you’re set on DIY, put the effort into 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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
How the job changes by surface
Timber door frames
Door frames get knocked and soaked, so their mastic can fail sooner. We rake it out and renew it.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Like-for-like sand mastic is generally favoured.
What affects the quote in Broad Street
Call for a quick quote. What matters most is:
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- The number and length of the joints
- Whether there’s mould to deal with
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Helping us quote
When you call or email, these details help:
- Whether it’s a home or a business
- Where the property is
- How we’d reach the joints
- Roughly how big the job is
For sand mastic in Broad Street, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.