Essex · England
Sand Mastic in Langdon Hills
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Langdon Hills and across Essex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Silicone on a period window that looks wrong
- Tired mastic found when preparing windows for paint
- Patchy fillers round a sash window
About our sand mastic in Langdon Hills
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. We rake it out and renew it and tidies the surround. Typical jobs include weathered mastic on the most exposed windows and wind and rain getting in round a sash window, across period & listed homes, brick reveals and sash and case windows.
Houses in smaller places like Langdon Hills can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Place
- Langdon Hills (SS16, SS15)
- Wider area
- Essex
- Cover
- One year on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
If you’re 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 does not work out, we can still put it right.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What affects the quote in Langdon Hills
There’s no set price list, because no two jobs are the same. What we look at:
- The number of rooms or windows
- Mould in or behind the old joints
- The type of sealant required
- Whether the work is at height
What it costs depends on the amount of work, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- Pictures of the joints, sent by email
- The rough size of the job
- What’s wrong with the joints now
- Any access issues, like height or stairs
To get a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Towns and villages near Langdon Hills
More services for Langdon Hills
How it works
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes a few hours per window, depending on the condition of the joints in most cases. A visit to Langdon Hills is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Clear the area around the work
- Let us know about parking restrictions
- Mention any tricky access
How to get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work.
Related advice
FAQs for Langdon Hills
Do you cover smaller places like Langdon Hills?
Yes. Langdon Hills is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Should the sealant in an older Langdon Hills home be renewed?
Often, yes: cracked, shrunken or mouldy sealant has done its job. New sealant won’t stick to old, so the old bead has to come out completely first.
Can tenants book the work?
Of course. Check with your landlord; we can send the quote to them too.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Do you offer different sealant colours?
Normally, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before work begins.
Are you fully insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that normally means someone at home.
How long does the job take?
A typical job takes anything from a few hours to a full day, depending on how many windows, including preparation and clearing up. Your quote will say how long we expect yours to take.
Langdon Hills homes and the weather
Langdon Hills is part of Basildon, one of the post-war new towns. Many homes date from the post-war decades, and many will have had their original windows replaced. That mastic ages as well, and sills and frame heads are where leaks start. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Laindon station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around Church of St Mary, the joint between an old wall and a newer frame is usually the first place rain gets in.
Langdon Hills is about 2 miles south-west of Basildon, in Essex. Homes, rented property, offices and hotels in Langdon Hills can book us for sand mastic. Every job comes with our 12-month guarantee. 644 places in Essex are on our list, from the larger towns to small villages. We also work in Chelmsford, about 12 miles from Langdon Hills.
Jobs for sand mastic in SS16 and SS15 works the same way as everywhere else we cover. That includes homes and businesses on High Road, Berry Lane and New Avenue and the roads around them. We also cover 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). We also work in nearby towns such as 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).
Local landmarks in Langdon Hills
We work in homes and buildings around 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). For a walk, there’s Langdon Nature Reserve.
Why it’s worth doing now in Langdon Hills
An open joint round the frame lets weather in. Left, water can reach the timber and the wall so renewing it early protects the window. In an older home around Langdon Hills, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.
What you get with us
- Quality sealants from Arbo and Everbuild
- Full insurance on every job
- Experience in homes, commercial sites and hotels
- Approved under the ARBOMaster scheme
Take a look at what affects the cost or our reviews.
Signs you need sand mastic in Langdon Hills
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint and we normally remove them.
The problems people normally mention when they call include:
- Crumbling sand mastic round a window
- Patchy fillers round a sash window
- A silicone bead on a sash window that spoils the look
- Failed mastic on an exposed elevation
For site and facilities teams at buildings such as Lincewood Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- How hidden problems are handled
- How the joint is cleaned and prepared
- Which colour the sealant will be
- When the joint can take water or movement
Keeping the joints in good condition
Looking after new joints is easy:
- Have rotten timber repaired before new mastic goes in
- Ask us before painting near the mastic
- Ask the planning authority about consent for listed or conservation-area homes
- Look over the window mastic once a year
Don’t run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.