Essex · England
Window Mastic in Langdon Hills
Specialist window mastic for Langdon Hills: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Leaking joints at the ends of sills
- Rushed sealant from a window installation
- Cracked or shrunken mastic around the frame
How we handle window mastic in Langdon Hills
Over two decades of sealing frames has taught us which products suit which walls. We’re ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. If you have rushed sealant from a window installation and cracked internal joints between frame and plaster, we can help, on aluminium frames, timber windows & doors and composite doors alike.
Homes around Langdon Hills range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Langdon Hills (SS16, SS15)
- Region
- Essex
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
We work for letting agents and landlords as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Frames and glazing around Langdon Hills
Langdon Hills is part of Basildon, one of the post-war new towns. With many homes from the post-war decades, replacement windows and doors are common. The mastic around replacement frames ages too, and gaps at sills and frame heads are where water gets in. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St Mary include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in. Managing a site like Lincewood Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Langdon Hills is about 2 miles south-west of Basildon, in Essex. We carry out window mastic for homes and businesses in Langdon Hills and nearby, as part of our work across Essex. We cover 644 towns and villages across Essex. Our Chelmsford page covers work nearby, about 12 miles away.
Here we cover the SS16 and SS15 postcode area for window mastic. Streets in the area include High Road, Berry Lane and New Avenue. Other places close to Langdon Hills include Great Berry (1 mile north-west), Laindon (1 mile north), Lee Chapel (1 mile north-east), Steeple View (2 miles north) and Basildon (2 miles north-east). Further out, we also cover Chelmsford (12 miles north), Brentwood (7 miles north-west), Canvey Island (8 miles east), Billericay (5 miles north), Rayleigh (8 miles east) and Wickford (5 miles north-east).
Near you in Langdon Hills
Typical jobs here are in homes near Gloucester Park and The James Hornsby School and the streets around them. Langdon Hills has its own railway station: Laindon station. Other landmarks nearby include The Motor Boat Museum (2.6 miles east) and Basildon University Hospital (1.4 miles east). The countryside around Langdon Hills includes Langdon Nature Reserve.
What the job involves on each surface
Composite doors
Draughts round the door leaf normally come from worn seals or adjustment, not the mastic. We’ll tell you if that is what we find.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall.
Do you need window mastic in Langdon Hills?
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
The most common problems we see are:
- Draughty joints inside around the window
- Gaps left after new windows were fitted
- Cracked or shrunken mastic around the frame
- Damp patches on the reveal after heavy rain
If you let a flat or house near Laindon station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- How long the guarantee is
- How long to leave it before use
- What happens if the job turns out different
- Who does the work, and how experienced they are
Why it’s worth doing now in Langdon Hills
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. In a smaller place like Langdon Hills, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
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 play a part.
Why book with us
- Any old sealant cut out fully, not covered over
- Colour picked to suit the job
- Every job guaranteed for a year
- Arbo and Everbuild products
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Avoid harsh chemicals near the mastic
- Make sure the drainage slots aren’t blocked
- Keep paint off silicone joints
- Keep jet washers away from the mastic
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.
What we do, step by step
We keep the work tidy and contained to the area we are working on, so you can get on with your day. Expect the work to take anything from an hour or two to a full day, depending on how many frames there are, and we tell you how long to leave it before we go. A visit to Langdon Hills is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
Ask for a quote
For window mastic in Langdon Hills, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Advice
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
Questions from Langdon Hills
Do you cover smaller places like Langdon Hills?
Yes, Langdon Hills is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you work for landlords with property near Laindon 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 email us with the address and what needs doing, and we will send you a clear quote.
Are you insured?
Yes. We are fully insured.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Do you have sealant for grey or black windows?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
What should I tell you?
A short description and the location, plus pictures if you have them. We’ll ask anything else we need to know.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Langdon Hills, along with the rest of our area.