Bracknell Forest · England
Moss End External Mastic
External mastic for Moss End, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant that has lost its bond to the brick or render
- Failed seals between different materials
- Water getting into walls through failed joints
When to call us in Moss End
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
Keep an eye out for any of the following:
- Movement joints with cracked, split or missing sealant
- Sealant pulling away from one side of the joint
- Movement joints filled with mortar instead of sealant
- Weathered mastic that no longer stretches
For site and facilities teams at buildings such as Garth Hill College, its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before booking
- Which colour the sealant will be
- Which sealant they’ll use, and why
- How much experience the applicator has
- What the cure time is
External mastic in Moss End
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. We’re often asked to deal with panel joints letting water in and failed seals between different materials, across copings & trims, render & cladding joints and brickwork movement joints.
Outside joints can only be sealed when they’re dry, so work in Moss End is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
You get a 12-month guarantee, the same in Moss End as everywhere else we work.
- Place
- Moss End (RG42)
- Region
- Bracknell Forest
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Moss End
What else we do in Moss End
Different surfaces, different methods
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that’s happened, we rake it out and reseal it properly where it can be done safely.
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
Common questions in Moss End
Do you cover Moss End for external mastic?
Yes, Moss End is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Will you come out to Moss End?
Yes, we do. Our work covers 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 take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Is the work guaranteed?
Yes, for a year. If there’s a problem with our work in that time, tell us and we will put it right.
Is it OK to fill a movement joint with cement?
No. Rigid materials can’t move with the wall. Where a joint has been mortared, it can often be raked out and sealed properly.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
How often do external joints need resealing?
It varies from wall to wall: joints on exposed walls or with a lot of movement age sooner. A yearly look will tell you when they need doing. Our work comes with a one-year guarantee.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin, matched as closely as the range allows.
Aftercare tips
A little care helps the new joints last. We recommend:
- Tell anyone working on the walls about the movement joints
- Ask before painting over external sealant
- Walk round the building once a year and look at the joints
- Fix overflowing gutters above sealed joints
Do not paint over the new sealant unless we have said the product is paintable. Paint can crack on a flexible joint.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Catch it early and you reduce the risk.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
The process
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the building. In a small place like Moss End, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Mention if the joints have been sealed before
- Mention any tricky access
- Tell us if parking is tricky
Getting a quote
For external mastic in Moss End, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
Advice
Outside joints around Moss End
Historic houses like St Leonard's Hill (about 4.5 miles east) are a reminder that the area around Moss End has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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.
Homes close to Church of St Michael and All Angels include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. For landlords with property near Bracknell station, split movement joints are easy to miss on a rental until damp shows inside.
Moss End is about 2 miles north of Bracknell, in Bracknell Forest. Our applicators cover external mastic for homes and businesses in Moss End and the surrounding area. Moss End is one of 41 towns and villages in Bracknell Forest we cover for external mastic. You can also see our page for Reading, roughly 10 miles from Moss End.
Our applicators cover all of RG42 for external mastic. Streets in the area include Bowyer's Lane and Maidenhead Road. If you are just outside Moss End, we cover Tickleback Row (1 mile west), Jealott's Hill (1 mile north), Warfield (1 mile south-east), Hawthorn Hill (1 mile north-east) and Newell Green (1 mile south). Within a short drive, we also cover Sandhurst (7 miles south), Great Hollands (3 miles south), Forest Park (3 miles south), The Warren (3 miles south-east), Harmans Water (3 miles south) and Jennett's Park (3 miles south).
What’s near Moss End
The closest station to Moss End is Bracknell station, roughly 2.3 miles south. Nearby you will also find The Lexicon (2 miles south) and Heatherwood Hospital (3.7 miles south-east). Green spaces nearby include Bray Pit and Weycock Hill.
Landlords, agents and businesses in Moss End
For anyone letting property in or around Moss End, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
What affects the quote in Moss End
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How many rooms, windows or areas are involved
- How much there is to do
- When we can work, for business premises
- Which sealant suits the joint
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
What to tell us for a quote
When you call or email, these details help:
- Roughly how big the job is
- Any access issues, like height or stairs
- The address or postcode of the job
- If someone has resealed it before
Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.