Surrey · England
Whitmoor Vale External Mastic
External mastic in Whitmoor Vale from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps where render, brick and frames meet
- Water getting into walls through failed joints
- Movement joints filled with mortar instead of sealant
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Never let anyone fill a movement joint with mortar
- Clear growth from the base of walls and joints
- Show decorators and builders where the movement joints are
- Deal with leaking gutters that soak the joints below
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.
External mastic in Whitmoor Vale
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. If you are dealing with moss and dirt in joints with no sealant left and gaps where render, brick and frames meet, we can help.
Outside joints can only be sealed when they’re dry, so work in Whitmoor Vale is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
A 12-month guarantee comes as standard, so you’re covered after we’ve gone.
- Place
- Whitmoor Vale (GU26)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
The work is kept neat and contained to the joints we are treating, so you can carry on as normal. The job usually takes a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. Somewhere as small as Whitmoor Vale, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
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. Whenever you are ready, phone 0345 464 0079 or drop us an email.
Related advice
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
If you manage several properties in or around Whitmoor Vale, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Walls and rooflines in Whitmoor Vale
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Haslemere station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Schools such as Beacon Hill Community Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For an older house near a landmark such as Church of St Luke, an extension built onto an older house moves differently, and the joint between them takes the strain.
Whitmoor Vale is about 6 miles south of Farnham, in Surrey. Whether you are in the middle of Whitmoor Vale or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Surrey coverage runs to 395 places, Whitmoor Vale among them. Our Reading page covers work nearby (24 miles or so).
Our applicators cover all of the GU26 postcode area for external mastic. External mastic is available to properties on Whitmoor Vale Road and Whitmore Vale and the roads around them. Nearby, we also carry out external mastic in Barford (1 mile north-west), Beacon Hill (1 mile east), Green Cross (1 mile north-east), Churt (1 mile north) and Grayshott (1 mile south-east). We also work in nearby towns such as Guildford (12 miles north-east), Camberley (15 miles north), Farnham (6 miles north), Frimley (13 miles north), Haslemere (3 miles south-east) and Cranleigh (13 miles east).
Landmarks near Whitmoor Vale
Locally, jobs take us to homes and businesses close to The Flashes, Woolmer Hill School and Crossways Inn, among other places. The nearest railway station is Haslemere station, roughly 3.3 miles south-east of the centre. Other landmarks nearby include Haslemere and District Hospital (3.5 miles south-east). For a walk, there’s Lynchmere Commons and Gibbet Hill.
Leave it or put it right?
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and does not last. Where a wall is exposed, as many are in small places like Whitmoor Vale, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
What you get with us
- Any old sealant cut out fully, not covered over
- Homes, businesses and hotels
- Colour agreed with you before work begins
- 4.9 on Google from 180+ five-star reviews
See our cost guide or our reviews.
Towns and villages near Whitmoor Vale
Also in Whitmoor Vale
What affects the cost of external mastic
There’s no set price list, because jobs vary so much. What we look at:
- How easy the joints are to reach
- Whether there’s mould to deal with
- When we can work, for business premises
- Which sealant suits the joint
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- The address or postcode of the job
- How we’d reach the joints
- The problem you’ve noticed
- Any previous sealing or DIY work
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.
Questions from Whitmoor Vale
Is Whitmoor Vale in your area for external mastic?
Yes. We work across London and the South East, and Whitmoor Vale is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
Will you come out to Whitmoor Vale?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
I rent my home. Can I book you?
Of course. Check with your landlord; we can send the quote to them too.
How long does the job take?
A typical job takes a few hours for a handful of joints, longer for a whole elevation. We will confirm how long when we quote.
Where is Mr Mastic based?
We work from Crawley. We cover Whitmoor Vale and the rest of Surrey, along with the rest of our area.
Do you have insurance?
Yes. We’re fully insured, and we can confirm the details when we quote.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
When something else is needed
We won’t take on work that will not last, so these are the limits:
- Failed render or damaged cladding panels
- Cracked brickwork or render that needs a builder or plasterer
- Subsidence or other structural problems
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Surfaces we seal
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Façade panels
- Brickwork movement joints
- Copings & trims