Bracknell Forest · England
External Mastic in Lawrence Hill
External mastic across Lawrence Hill and nearby, with old sealant always removed completely and a one-year guarantee.
- Sealant that has lost its bond to the brick or render
- Joints pointed up with cement by mistake
- Water getting into walls through failed joints
How we handle external mastic in Lawrence Hill
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing. If you have movement joints with cracked, split or missing sealant and rain getting behind render or cladding at a joint, we can put it right, whatever the surface.
In and around Lawrence Hill, older properties sit alongside newer ones, each with its own outside joints. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
Each job carries a 12-month guarantee, whatever its size.
- Place
- Lawrence Hill (RG42, RG12)
- Wider area
- Bracknell Forest
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. In a smaller place like Lawrence Hill, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- White, clear, grey or coloured to suit, where the product allows
- A sealant colour to suit the surroundings
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
Read our cost guide and our reviews.
Landlords, agents and businesses in Lawrence Hill
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
If you manage several properties in or around Lawrence Hill, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
Lawrence Hill: your questions answered
Will you come out to Lawrence Hill?
Yes, Lawrence Hill is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do older homes in Lawrence Hill need their sealant replacing?
Often, yes: cracked, shrunken or mouldy sealant has done its job. The key is cutting all the old sealant out, as new sealant won’t bond to it.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
Should I point up the gap in my brickwork?
No. A mortar-filled joint can’t move, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Do you seal joints where cladding meets other materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
Are you fully insured?
Yes, we’re fully insured for domestic and commercial work.
Can tenants book the work?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
How do I get a quote for external mastic in Lawrence Hill?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What we can’t put right
A few problems are outside what sealant work can do:
- Structural movement, which needs a surveyor or engineer
- Rising or penetrating damp from elsewhere in the wall
- Failed render or damaged cladding panels
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before you book.
What we seal
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Brickwork movement joints
What external mastic looks like in Lawrence Hill
Bracknell, which Lawrence Hill is part of, is one of England’s post-war new towns. Many homes date from the post-war decades and were built in phases, so neighbouring houses often have rooflines and wall joints of the same age, wearing out at the same time. With historic houses such as St Leonard's Hill (about 4.7 miles north-east) nearby, there’s older building stock in the area around Lawrence Hill as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
If you look after a building such as Warfield Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s. For an older house near a landmark such as Holy Trinity Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Bracknell station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Lawrence Hill is about 1 mile north of Bracknell, in Bracknell Forest. Whether you are in the middle of Lawrence Hill or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 41 places across Bracknell Forest, large and small. We also work in Reading, around 10 miles away.
Here we cover the RG42 and RG12 postcode area for external mastic. If you need external mastic at a property on Atte Lane, Quelm Lane and Sandy Lane or anywhere close by, we can help. Close by, we work in Newell Green (1 mile north-west), Quelm Park (1 mile west), Wick Hill (1 mile south), Whitegrove (1 mile south-east) and Warfield (1 mile north). We also work in nearby towns such as Sandhurst (6 miles south), Hanworth (3 miles south), College Town (6 miles south), Little Sandhurst (6 miles south-west), Birch Hill (3 miles south) and Owlsmoor (5 miles south). Lawrence Hill is one of the larger places we cover in Bracknell Forest.
What’s near Lawrence Hill
We work in homes and buildings around Old Manor House Hotel, Garth Hill College and Lambrook and the streets around them. The nearest railway station is Bracknell station, roughly 1.2 miles south-west. Well-known places in the area include The Lexicon (0.9 miles south-west) and Heatherwood Hospital (2.7 miles south-east). For a walk, there’s Holt Copse & Joel Park and Heath Lake.
Quotes for external mastic in Lawrence Hill
The price is agreed before any work begins. It takes into account:
- The product the joint needs
- Any working-time requirements on site
- The number and length of the joints
- Access and height
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
Asking for a quote
When you contact us, it’s useful to know:
- If someone has resealed it before
- The problem you’ve noticed
- How we’d reach the joints
- The type of property
We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or drop us an email with the details and send pictures if you have them.
What we do, step by step
There’s no need to move everything out, just the space around the work. We protect the rest, and the job takes a few hours for a handful of joints, longer for a whole elevation in most cases. A visit to Lawrence Hill 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.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Asking for a quote is easy: let us know what needs doing and where. A few pictures by email make the job easier to understand.
Read more
Nearby places to Lawrence Hill
Other services in Lawrence Hill
How the job changes by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant where it can be done safely.
How to look after the new joints
Aftercare is simple:
- Get split or bare joints resealed while the damage is small
- Keep soil, plants and ivy away from the joints
- Fix overflowing gutters above sealed joints
- Point out the joints to other trades
Only paint over the joint if we have confirmed the sealant can take paint. Paint can crack on a flexible joint.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.