Kent · England
Oldbury Sand Mastic
Specialist sand mastic for Oldbury: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Mastic dropping out of the joint
- Mastic that needs renewing before redecorating
- Old cement repairs round a window that have failed
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Go gently near the mastic when preparing windows
- Plan mastic work ahead of painting
- Don’t paint over the new mastic
- Ask a joiner to look at soft timber first
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
Sand mastic in Oldbury
Silicone on a period window often looks wrong and doesn’t suit the building. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. Typical jobs include draughty sash windows at the surround and window mastic to renew ahead of painting, on period & listed homes, stone surrounds and tenement windows.
Around Oldbury, 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.
Big or small, you get the same one-year guarantee in Oldbury and across Kent.
- Where
- Oldbury (TN15)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Oldbury
What else we do in Oldbury
Oldbury homes and the weather
London and the South East are among the drier parts 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 Ightham Mote (about 1.9 miles south) nearby, there’s older building stock in the area around Oldbury 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.
If you let a flat or house near Borough Green & Wrotham station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Ightham Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of St Peter, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Oldbury is about 4 miles east of Sevenoaks, in Kent. For sand mastic in and around Oldbury, please phone 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Kent. Across Kent, we cover 922 places, Oldbury among them. You can also see our page for London, about 22 miles away.
Our applicators cover all of TN15 for sand mastic and the streets around it. Whether your property is on Oldbury Lane, Spring Lane and Sevenoaks Road or a nearby road, we can help. Close by, we work in Ightham (1 mile south), Styants Bottom (1 mile west), Ivy Hatch (1 mile south), Sheet Hill (1 mile south-east) and Stone Street (1 mile south-west). Larger places within reach include Maidstone (11 miles east), Dartford (11 miles north), Sevenoaks (4 miles west), Royal Tunbridge Wells (10 miles south), Gravesend (11 miles north-east) and Tonbridge (6 miles south).
What’s near Oldbury
Around Oldbury, our work takes us to homes and buildings near The Old House, Ivy Hatch Nature Reserve and Wrotham School and the streets around them. The closest station to Oldbury is Borough Green & Wrotham station, about 1.4 miles north-east. Other landmarks nearby include Beechin Wood Archery Museum (2.4 miles east) and Ightham Court (0.8 miles north-east).
When it is not the sealant
Sealant isn’t the answer to every problem, and we’ll tell you before work begins. It won’t solve:
- Timber that has rotted
- Broken panes
- Crumbling stone or brickwork round the window
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Period & listed homes
- Brick reveals
- Timber door frames
- Stone surrounds
- Sash and case windows
- Tenement windows
How we quote for sand mastic
We quote each job individually. This is what makes a difference:
- The number of rooms or windows
- Any mould that needs treating
- The type of sealant required
- Whether the work is at height
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The address or postcode of the job
- How we’d reach the joints
- If someone has resealed it before
- A few photos by email, if you can
We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details, and photos are welcome.
What we do, step by step
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours for a single window, longer for several, including the tidy-up. In a small place like Oldbury, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- 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
- Mention any tricky access
- Let us know about parking restrictions
- Tell us about any previous sealing or DIY attempts
How to get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
Read more
Oldbury: your questions answered
Is Oldbury within the area you cover?
Yes, Oldbury is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you cover Oldbury for sand mastic?
Yes, Oldbury is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
How long does sand mastic take to go off?
A skin forms quite soon, but full hardening takes longer. We’ll tell you what to expect for your job.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages.
How much does sand mastic cost in Oldbury?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before any work starts.
How long will you be here?
As a guide, most jobs take a few hours for a single window, longer for several. Bigger jobs take longer, and we’ll say how long yours will take.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Should I try it myself first?
A careful DIYer can reseal a simple joint, 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.
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 fails, we can still redo it.
Why deal with it now?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic suits the building and finishes neatly against the masonry. Around Oldbury, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why Oldbury customers choose us
- We are fully insured
- Homes, businesses and hotels
- Every job guaranteed for a year
- Tidy, careful work
Take a look at how sealant jobs are priced and customer reviews.
For landlords and businesses
Housing providers, facilities teams and property managers book us too in Oldbury and across Kent. We can quote a run of properties together, and we are fully insured.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.