Kent · England
Sand mastic for sash & case windows in Five Oak Green, Kent
Sand mastic for Five Oak Green, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic round period door frames that has failed
- A silicone bead on a sash window that spoils the look
- Open joints round the window box
What we’re called out for in Five Oak Green
Shallow joints are a common cause. A thin layer doesn’t hold well, which is why we pack deep voids first and get the depth right.
Any of these means the joints need attention:
- Mastic that needs renewing before redecorating
- Open joints round the window box
- Mastic worn away on windows facing the weather
- Gaps round a timber door in stone or brick
Homes close to Five Oak Green Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before you book
- Are they insured?
- What guarantee comes with the work
- Who does the work, and how experienced they are
- Is the old sealant removed completely?
How we handle sand mastic in Five Oak Green
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we’ll advise if you are redecorating. Typical jobs include patchy fillers round a sash window and weathered mastic on the most exposed windows, across stone surrounds, period & listed homes and brick reveals.
In a village or hamlet like Five Oak Green, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Every job comes with a one-year guarantee.
- Where
- Five Oak Green (TN12)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
At the end, we look at the finished work together. The visit itself generally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. Somewhere like Five Oak Green needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Before we arrive
- Clear the area around the work
- Let us know about earlier repairs to the joints
- Mention any parking rules near the property
Getting a quote
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Advice
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Get any rot dealt with first
- Ask the planning authority about consent for listed or conservation-area homes
- Do not run silicone over sand mastic
- Inspect the joints round the windows every year or so
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
What affects the cost of sand mastic
The price is agreed before any work begins. It’s based on:
- Access and height
- Working hours on commercial sites
- The number and length of the joints
- The old material and how stubborn it is
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.
What to tell us for a quote
When you contact us, it’s useful to know:
- The problem you’ve noticed
- Whether it’s a home or a business
- If someone has resealed it before
- Where the job is, and your postcode
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Leave it or put it right?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall, so dealing with it now protects both. In a small place like Five Oak Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why choose Mr Mastic in Five Oak Green
- Trusted Arbo and Everbuild sealants
- An ARBOMaster approved applicator
- 12-month guarantee on every job
- Tidy, careful work
Read what affects the cost and customer reviews.
Windows and doors in Five Oak Green
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Paddock Wood station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Capel Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Five Oak Green is about 3 miles east of Tonbridge, in Kent. We carry out sand mastic for homes and businesses in Five Oak Green. 922 places in Kent are on our list, large and small. For nearby work, see our Crawley page (24 miles or so).
All of TN12 is covered for sand mastic. You will find streets such as Oak Road, Nortons Way and Ellis Close, all of which we cover. Nearby, we also carry out sand mastic in Capel (1 mile south-west), Colt's Hill (1 mile south), Whetsted (1 mile north-east), Crockhurst Street (1 mile west) and Tudeley Hale (2 miles west). Further out, we also cover Maidstone (9 miles north-east), Sevenoaks (10 miles north-west), Royal Tunbridge Wells (5 miles south-west), Tonbridge (3 miles west), Kings Hill (7 miles north) and Foley Park (10 miles north-east).
Around Five Oak Green
Locally, jobs take us to homes and businesses close to Foal Hurst Wood, Queens Head pub and Mascalls School and the streets around them. Five Oak Green’s nearest station is Paddock Wood station, about 1.6 miles east. A little further out are The Hop Farm Museum (2 miles north-east) and Tonbridge Castle (3.6 miles west). The countryside around Five Oak Green includes Tudeley Woods RSPB reserve and Barden Lake.
Common questions in Five Oak Green
I let a flat near Paddock Wood station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Can you do sand mastic in Five Oak Green?
Yes, Five Oak Green is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Should I check with the council before work on a listed or conservation-area home?
Check with your local planning authority. They decide whether consent is needed for work to your windows.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Where are you based?
We work from Crawley. We cover Five Oak Green and the rest of Kent.