Essex · England
Laindon Window Mastic
Professional window mastic in and around Laindon, with every bit of old sealant taken out first.
- Leaking joints at the ends of sills
- A bead that does not match the frame
- Draughts coming in around windows and doors
Aftercare tips
A little care helps the new joints last. Our advice:
- Keep drainage slots and sill grooves clear
- Keep jet washers away from the mastic
- Avoid harsh chemicals near the mastic
- Check the mastic once a year
Most silicone sealants will not take paint, so mention any painting plans before we start. We can use a paintable sealant where that matters.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Window mastic in Laindon, done properly
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. If you’re dealing with cold air getting in at the frame edge and black, perished sealant on frames, we can help, whatever the surface.
In smaller places like Laindon, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Place
- Laindon (SS15, SS16)
- Region
- Essex
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Honest limits
To be straight with you, some problems need a different trade:
- A failed sealed unit that has misted up
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer before booking.
Where we work in Laindon
- Window sills
- Composite doors
- Aluminium frames
- Patio & French doors
- uPVC windows
- Timber windows & doors
The process
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It generally takes anything from an hour or two to a full day, depending on how many frames there are. A visit to Laindon 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.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or send us an email.
Related advice
What window mastic looks like in Laindon
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. Laindon 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.
Schools such as Merrylands Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around Church of St Nicholas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Laindon is about 2 miles west of Basildon, in Essex. We carry out window mastic for homes and businesses in Laindon and the surrounding area. We cover 644 towns and villages across Essex, from the larger towns to small villages. You can also see our page for Chelmsford, roughly 12 miles from Laindon.
All of SS15 and SS16 is covered for window mastic. That includes homes and businesses on High Road, Drake Road and Spire Road. Neighbouring places we cover for window mastic include Great Berry (1 mile south-west), Langdon Hills (1 mile south), Steeple View (1 mile north), Lee Chapel (1 mile east) and Noak Bridge (2 miles north-east). Further out, we also cover Chelmsford (12 miles north), Brentwood (6 miles north-west), Canvey Island (8 miles south-east), Billericay (4 miles north), Rayleigh (8 miles east) and Wickford (5 miles north-east).
Around Laindon
Around Laindon, our work takes us to homes and buildings near The James Hornsby School and Gloucester Park and the streets around them. For rail, the closest station is Laindon station, roughly 0.5 miles south-east of the centre. Well-known places in the area include Basildon University Hospital (1.8 miles south-east) and Eastgate Shopping Centre (1.8 miles east). Green spaces nearby include Langdon Nature Reserve.
Towns and villages near Laindon
Other services in Laindon
What affects the cost of window mastic
You’ll get a clear quote before any work starts. It takes into account:
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- How many rooms, windows or areas are involved
- Any mould that needs treating
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
Helping us quote
You do not need to know the technical terms. Just tell us:
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
- Where the job is, and your postcode
To get a quote, phone 0345 464 0079 or drop 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.
Landlord and commercial work in Laindon
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Laindon questions
I let a flat near Laindon station. Can you help?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Should the sealant in an older Laindon 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.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit. We confirm the timing with your quote.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Will there be a smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Signs you need window mastic in Laindon
On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
Common reasons people contact us are:
- Rain getting in at the frame or under the sill
- Cold air getting in at the frame edge
- Gaps between the frame and the inside reveal
- Cracked sealant at the sill ends
Rented homes near Laindon station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Questions to ask before booking
- Are they insured?
- How long the guarantee is
- Whether you can choose the colour
- What the cure time is
Surface by surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the new bead is laid against the frame and the wall.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we’ll tell you before going ahead, as that’s a job for a joiner.
