Bracknell Forest · England
External & façade joints in Owlsmoor, Bracknell Forest
External mastic for Owlsmoor, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant pulling away from one side of the joint
- Water getting into walls through failed joints
- Hard, crazed mastic that has stopped moving
External mastic in Owlsmoor, done properly
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a colour to suit. We work on joints between brick and frames, render & cladding joints and concrete & block, and the jobs we see most are movement joints filled with mortar instead of sealant and moss and dirt in joints with no sealant left.
In and around Owlsmoor, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
Each job carries a 12-month guarantee, whatever its size.
- Place
- Owlsmoor (GU47, RG45)
- Wider area
- Bracknell Forest
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Cracks in the bricks or render themselves, away from the joints
- Damp that is not coming from the joint
- Render that is blown, hollow or coming away
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Joints between brick and frames
- Façade panels
- Copings & trims
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
How the visit works
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes anything from a few hours to several days, depending on the building. In a smaller place like Owlsmoor, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
Getting a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.
Related advice
Landlord and commercial work in Owlsmoor
If you manage several properties in or around Owlsmoor, several properties can go on one quote. Just tell us the addresses and what each one needs.
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we’re fully insured.
Also near Owlsmoor
What else we do in Owlsmoor
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Check the sealant is paintable before painting near it
- Act on the first splits you see
- Walk round the building once a year and look at the joints
- Clear growth from the base of walls and joints
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
What external mastic looks like in Owlsmoor
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.
Schools such as Owlsmoor Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. For landlords with property near Sandhurst station, split movement joints are easy to miss on a rental until damp shows inside.
Owlsmoor is about 1 mile north of Sandhurst, in Bracknell Forest. If you need external mastic in Owlsmoor, please ring 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Bracknell Forest. Owlsmoor is one of 41 places in Bracknell Forest we cover for external mastic. We also work in Reading, around 10 miles away.
Work in GU47 and RG45 is quoted and booked the same way as anywhere else. That includes homes and businesses on Oak Avenue, South Road and Church Road. Neighbouring places we cover for external mastic include Sandhurst (1 mile south), College Town (1 mile south), Crowthorne (1 mile north-west), Blackwater (2 miles south) and Frogmore (2 miles south). We also work in nearby towns such as Bracknell (4 miles north), Wick Hill (5 miles north-east), Priestwood (5 miles north), Lawrence Hill (5 miles north), Binfield (5 miles north) and Quelm Park (5 miles north).
Local landmarks in Owlsmoor
Around Owlsmoor, our work takes us to homes and buildings near Royal Military Academy Library, Edgbarrow Woods and The Iron Duke pub. Owlsmoor’s nearest station is Sandhurst station, roughly 1.1 miles south-west. Well-known places in the area include Pinewood Hospital (2 miles north) and Staff College Museum (1.9 miles south-east). Not far away are Wildmoor Heath and Horseshoe Lake.
Why it’s worth doing now in Owlsmoor
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. Homes in smaller places like Owlsmoor can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Call for a quick quote and we’ll go through it with you.
What you get with us
- Over 20 years’ experience
- Colour agreed with you before we start
- Anti-fungal silicone where joints get wet
- Full insurance on every job
See what affects the cost and what customers say.
Common problems we fix in Owlsmoor
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
The problems people normally mention when they call include:
- Cracked joints where brick meets render or frames
- Weeds or debris growing in open joints
- Joints where the bead has come unstuck
- Movement joints filled with mortar instead of sealant
Homes close to St George's Church include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before booking
- Whether VAT is included
- How the surfaces are prepared before sealing
- What happens if they find a problem under the old sealant
- What product goes in the joint
Owlsmoor: your questions answered
Do you cover smaller places like Owlsmoor?
Yes, Owlsmoor is covered. 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.
I let a flat near Sandhurst station. Can you help?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
What is a movement joint?
Brickwork, render and cladding all move a little, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides, primed where needed.
Can you reach joints on upper floors?
It depends on the height and the site. Low-level joints are straightforward; for higher work, tell us about the building and we’ll confirm what’s needed.
Do you use backing rod?
That’s backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides, which would stop it stretching.
How long does the job take?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Bigger jobs take longer, and we’ll tell you how long to expect.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.