Kent · England
Window & door mastic in Oldbury, Kent
Window mastic in Oldbury from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Old mastic that has gone black or come away
- Damp patches on the reveal after heavy rain
- Cold air getting in at the frame edge
Window mastic for homes and businesses in Oldbury
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you are dealing with rushed sealant from a window installation and white mastic on grey or black frames, we can help, on uPVC windows, aluminium frames and timber windows & doors alike.
In a village or hamlet like Oldbury, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
We stand behind the work with a 12-month guarantee.

- Where
- Oldbury (TN15)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common problems we fix in Oldbury
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar didn’t grip properly, so it comes away long before its time.
Keep an eye out for any of the following:
- Water coming in at the bottom corners of a door
- Gaps between the frame and the inside reveal
- Mastic that has split away from the wall
- Old mastic that has gone black or come away
Homes close to Church of St Peter include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Comparing quotes
- Whether the sealant suits the joint
- How long the guarantee is
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
What happens on the day
The work is kept neat and contained to the area we are working on, so you can get on with your day. The job normally takes a few hours for a handful of frames, longer for a whole house, and we tell you how long to leave it before we go. In a small place like Oldbury, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Keep children and pets away from the work area
- Try not to wet indoor joints just before the visit
- Mention any tricky access
Ask for a quote
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Related advice
Landlords, agents and businesses in Oldbury
We work for letting agents and landlords as well as homeowners. Sealant work between tenants keeps a property looking cared for.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
Different surfaces, different methods
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
Looking after it afterwards
After the cure time, these simple habits help:
- Keep jet washers away from the mastic
- Check the mastic once a year
- Avoid harsh chemicals near the mastic
- Use gentle cleaners on frames and sealant
Keep the new mastic undisturbed while it cures, following the cure time we give you. Do not point a pressure washer at the joints.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Towns and villages near Oldbury
Other services in Oldbury
What affects the cost of window mastic
There’s no set price list, because no two jobs are the same. What we look at:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- When we can work, for business premises
- How many areas need sealing
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Whether it’s a home or a business
- How we’d reach the joints
- How many joints, rooms or windows are involved
- Whether it has been sealed before
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, phone 0345 464 0079 or send us an email.
Why act early in Oldbury
Resealing frames is a short job: the visit takes a few hours for a handful of frames, longer for a whole house. Leave it until water is coming in and you may need plastering and decorating as well. In a small place like Oldbury, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.
Why Oldbury clients choose us
- Full insurance on every job
- Every job guaranteed for a year
- We leave the area clean and tidy
- Homes, businesses and hotels
Take a look at our cost guide or customer reviews.
Windows and doors in Oldbury
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. 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. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Schools such as Ightham Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Borough Green & Wrotham station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Oldbury is about 4 miles east of Sevenoaks, in Kent. If you need window mastic in Oldbury, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We are based in Crawley and cover Kent, Oldbury included. Our area takes in 922 places across Kent, large and small. There’s also a page for London, roughly 22 miles from Oldbury.
We work across TN15 for window mastic and the streets around it. Local streets include Oldbury Lane, Spring Lane and Sevenoaks Road, all of which we cover. We also cover the places around Oldbury: 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). Further out, we also cover 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).
Landmarks near Oldbury
We work in homes and buildings around The Old House, Ivy Hatch Nature Reserve and Wrotham School, among other places. For rail, the closest station is Borough Green & Wrotham station, roughly 1.4 miles north-east of the centre. Nearby you will also find Beechin Wood Archery Museum (2.4 miles east) and Ightham Court (0.8 miles north-east).
Common questions in Oldbury
Is Oldbury within the area you cover?
Yes. Oldbury is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Borough Green & Wrotham station?
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 drop us an email with the address and what needs doing, and we will give you a clear price.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Is there any odour?
Some sealants have a smell while they cure. Opening a window helps.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s coming through the window seals, we’ll tell you.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we are using.
