Surrey · England
Westborough External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Westborough, with a one-year guarantee on every job. Call for a quick quote.
- Sealant pulling away from one side of the joint
- Moss and dirt in joints with no sealant left
- Rain getting behind render or cladding at a joint
Westborough: your questions answered
I let a flat near Guildford station. Can you help?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Westborough?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
How long should I leave it?
It depends on the product. Before we leave, we’ll tell you the cure time.
Where do you work from?
We work from Crawley. We cover Westborough and the rest of Surrey, along with the rest of our area.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Is the work guaranteed?
Yes. Every job comes with a one-year guarantee.
Do you have insurance?
Yes. Mr Mastic is fully insured.
How do I get a quote for external mastic in Westborough?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or send us an email with a short description of the job.
External mastic for homes and businesses in Westborough
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. We work on copings & trims, concrete & block and façade panels, and the jobs we see most are old sealant gone brittle and cracked and plants rooting in failed movement joints.
Outbuildings, garages and conservatories around homes in places like Westborough add more joints to look after. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
We stand behind the work with a one-year guarantee.
- Where
- Westborough (GU2, GU1, GU3)
- Region
- Surrey
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
We’ll always be straight with you, so here’s what new sealant will not do:
- Adding movement joints to masonry that has none
- Render that is blown, hollow or coming away
- Subsidence or other structural problems
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Façade panels
Places near Westborough
Also in Westborough
What happens on the day
We keep the work tidy and contained to the joints we’re treating. Expect the work to take 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. In a smaller place like Westborough, 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.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
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.
Advice
How we quote for external mastic
Call for a quick quote. What matters most is:
- How many areas need sealing
- Access and height
- The amount of work
- When we can work, for business premises
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before any work starts.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- What’s wrong with the joints now
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- Where the property is
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or drop us an email.
Why deal with it now?
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together. Homes in smaller places like Westborough can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why book with us
- White, clear, grey or another colour, product permitting
- Every job guaranteed for a year
- Colour agreed with you before any work starts
- 180+ five-star Google reviews
See what affects the cost or our reviews.
Outside joints around Westborough
Historic houses like Guildford Castle (about 1.4 miles south-east) are a reminder that the area around Westborough has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Guildford station? Then outside joints that have cracked can let damp into a rental, so check them between lets. Homes close to St Francis Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Westborough is about 1 mile west of Guildford, in Surrey. Our applicators cover external mastic for homes and businesses in Westborough and the surrounding area. Westborough is one of 395 places in Surrey where we work for external mastic. Our Crawley page covers work nearby, about 20 miles away.
Jobs for external mastic in GU2, GU1 and GU3 works the same way as everywhere else we cover. Whether your property is on Cabell Road, Clover Road and Weston Road or anywhere close by, we can help. Westborough is on the A323, so it’s easy for us to get to with everything needed for external mastic. Nearby, we also carry out external mastic in Stoughton (1 mile north), Bellfields (1 mile north-east), Guildford (1 mile east), Abbotswood (2 miles east) and Jacobs Well (2 miles north-east). Larger places within reach include Woking (5 miles north), Camberley (8 miles north-west), Farnham (9 miles west), Egham (13 miles north), Walton-on-Thames (13 miles north-east) and Dorking (12 miles east).
Around Westborough
Typical jobs here are in homes near Kings College Guildford, Broadstreet and Hare and Hounds pub and the streets around them. The nearest railway station is Guildford station, roughly 1 mile south-east. Nearby you will also find Royal Surrey County Hospital (0.6 miles south-west) and Guildford Cathedral Treasury (0.5 miles south-east). The countryside around Westborough includes Littlefield Common and Pewley Hill.
Signs you need external mastic in Westborough
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
Common reasons people contact us are:
- Joints pointed up with cement by mistake
- Weeds or debris growing in open joints
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
If you look after a building such as St Joseph's Catholic Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Before you book anyone
- What happens if the job turns out different
- What insurance they hold
- Whether the sealant suits the joint
- Whether VAT is included
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the 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.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Leave the joints unpainted unless we have said otherwise
- Tell anyone working on the walls about the movement joints
- Keep movement joints as flexible joints, not mortar
- Deal with leaking gutters that soak the joints below
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick, all bigger jobs than a reseal.