Surrey · England
External Mastic in Bramshott Chase
External mastic for Bramshott Chase, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Water getting into walls through failed joints
- Weeds or debris growing in open joints
- Failed sealant between panels on a façade
Questions from Bramshott Chase
Do you cover smaller places like Bramshott Chase?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is Bramshott Chase in your area for external mastic?
Yes, Bramshott Chase is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
How long does external mastic last?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away and have them redone then.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
How long will you be here?
A typical job takes anything from a few hours to several days, depending on the building. Your quote will say how long we expect yours to take.
Can you seal joints between render and window frames?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
About our external mastic in Bramshott Chase
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. Common call-outs are for hard, crazed mastic that has stopped moving and gaps where render, brick and frames meet, on façade panels, render & cladding joints and joints between brick and frames.
External sealant needs dry, clean surfaces, so work around Bramshott Chase is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
Your job is guaranteed for a year, as with all our work.
- Location
- Bramshott Chase (GU26)
- Wider area
- Surrey
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Honest limits
We will always be straight with you, so here’s what new sealant will not do:
- Rising or penetrating damp from elsewhere in the wall
- Cracks in the bricks or render themselves, away from the joints
- Failed render or damaged cladding panels
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
What we seal
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Copings & trims
- Concrete & block
- Brickwork movement joints
What happens on the day
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. It usually takes anything from a few hours to several days, depending on the building. Somewhere as small as Bramshott Chase, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Let us know about stairs, lifts or work at height
- Mention any parking rules near the property
- Mention if the joints have been sealed before
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Read more
Common problems we fix in Bramshott Chase
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it cannot stretch and rips as the joint opens.
Common reasons people contact us include:
- Damp patches traced to an open external joint
- Cracked joints where brick meets render or frames
- Panel joints letting water in
- Joints with sealant missing in places
If you look after a building such as Woolmer Hill School, larger buildings have long runs of movement joint that eventually need resealing.
Comparing quotes
- The length of the guarantee
- Whether all the old sealant comes out first
- Whether you can choose the colour
- How the surfaces are prepared before sealing
Surface by surface
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two so neither cracks the other.
Why deal with it now?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. Around Bramshott Chase, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What you get with us
- Colour picked to suit the job
- We leave the area clean and tidy
- Sanitary silicone with an anti-fungal additive in wet areas
- Every job guaranteed for a year
See our cost guide and our reviews.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Get split or bare joints resealed while the damage is small
- Deal with leaking gutters that soak the joints below
- Look over the joints every year, ideally after winter
- Do not let climbing plants root in the sealant
Do not let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Bramshott Chase buildings and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as Church of St Luke, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Haslemere station, outside joints that have cracked can let damp into a rental, so check them between lets.
Bramshott Chase is about 8 miles south of Farnham, in Surrey. We provide external mastic to homes and businesses in Bramshott Chase and nearby. Our area takes in 395 places across Surrey, large and small. Our Portsmouth page covers work nearby (24 miles or so).
Postcode districts we cover here for external mastic: GU26. That includes homes and businesses on Upper Hammer Lane, Old Bramshott Chase and Portsmouth Road and the roads around them. If you are just outside Bramshott Chase, we cover Hammer Bottom (1 mile south), Hammer (1 mile south), Shottermill (1 mile south-east), Woolmer Hill (1 mile south) and Haslemere (2 miles south-east). We also work in nearby towns such as Guildford (13 miles north-east), Farnham (8 miles north), Frimley (15 miles north), Cranleigh (12 miles east), Ash (10 miles north) and Godalming (9 miles north-east).
Local landmarks in Bramshott Chase
We work in homes and buildings around Shottermill Junior School and The Prince of Wales pub, among other places. The nearest railway station is Haslemere station, roughly 1.7 miles east. Other landmarks nearby include Haslemere and District Hospital (2.1 miles east). The countryside around Bramshott Chase includes Upper Lake and Gibbet Hill.