Surrey · England
External & façade joints in Mytchett, Surrey
Movement joints in Mytchett need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Joints where the bead has come unstuck
- Movement joints with cracked, split or missing sealant
- Water getting into walls through failed joints
External mastic in Mytchett, done properly
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. We work on brickwork movement joints, façade panels and concrete & block, and people most often call us about joints where the bead has come unstuck and weeds or debris growing in open joints.
Outbuildings, garages and conservatories around homes in places like Mytchett add more joints to look after. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
You are covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Location
- Mytchett (GU16)
- Region
- Surrey
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the quote in Mytchett
The quote reflects the job in front of us. We take into account:
- How many areas need sealing
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
Instead of a standard rate, 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.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- A few photos by email, if you can
We quote each job on its own, so the first step is telling us about yours. Just ring 0345 464 0079 or email us with the details.
Also near Mytchett
What else we do in Mytchett
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.
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We also work for property managers and facilities teams in Mytchett and across Surrey. Several sites can be quoted together, and we are fully insured for the work.
Mytchett: your questions answered
Is Mytchett in your area for external mastic?
Yes. We work across London and the South East, and Mytchett is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Do you cover smaller places like Mytchett?
Yes, Mytchett is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
How long does external mastic last?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away and have them redone then.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Can you seal joints between two different 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.
How long does external mastic take?
A typical job takes a few hours to a few days, depending on the length of joint and the access, including preparation and clearing up. We’ll confirm how long when we quote.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. Indoors, that normally means someone at home.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin from the range available.
Surface by surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. We size the backing rod to the gap.
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Leave it or put it right?
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render, so the damage spreads beyond the joint. In an older home around Mytchett, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and agree the price before starting.
What you get with us
- Experience in homes, commercial sites and hotels
- Approved under the ARBOMaster scheme
- A sealant colour to suit the surroundings
- Anti-fungal sanitary silicone in wet areas
Read our cost guide or our reviews.
What external mastic looks like in Mytchett
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Wanborough Manor (about 4.9 miles south-east) are a reminder that the area around Mytchett has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
For landlords with property near Farnborough North station, outside joints that have cracked can let damp into a rental, so check them between lets. If you look after a building such as Mytchett Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Mytchett is about 2 miles south of Frimley, in Surrey. If you need external mastic in Mytchett, please call 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Surrey. Across Surrey, we cover 395 places, Mytchett among them. For nearby work, see our Reading page, about 15 miles away.
Every address in GU16 is within our area for external mastic. You’ll find streets such as Wynfields, Coleford Close and Burgess Close. You will find Mytchett on the B3411, so it’s easy for us to get to with everything needed for external mastic. If you are just outside Mytchett, we cover North Camp (1 mile south-west), Ash Vale (2 miles south), Farnborough (2 miles west), Cove (3 miles west) and Southwood (3 miles west). Further out, we also cover Guildford (7 miles south-east), Woking (7 miles east), Camberley (3 miles north), Farnham (6 miles south-west), Egham (12 miles north-east) and Walton-on-Thames (15 miles north-east).
Landmarks near Mytchett
In Mytchett, that means homes and buildings near Henry Tyndale School, Prince of Wales pub and Sixth Form College. Nearby too are Frimley Lodge Park (0.6 miles north) and National Aerospace Library (1.4 miles west). For rail, the closest station is Farnborough North station, roughly 1.1 miles north-west of the centre. Nearby you’ll also find Frimley Park Hospital (2 miles north) and Royal Army Dental Corps Historical Museum (1.8 miles south-west). Open spaces near Mytchett include Danger Hill and Aunt's Pool.
How it works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours for a handful of joints, longer for a whole elevation. Parking around Mytchett is usually easier than in a town centre, but mention any lanes, gates or long drives. 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.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
How to get a quote
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and send you a clear quote before we start.
Related advice
What we’re called out for in Mytchett
Some movement joints have been pointed up with mortar, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
These are the problems we are asked about most:
- Rigid filler in a joint that should flex
- Sealant pulling away from one side of the joint
- Old sealant gone brittle and cracked
- Water getting into walls through failed joints
Homes close to Church of St Andrew include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Before booking anyone
- Whether they seal over old material or remove it
- Whether VAT is included
- How hidden problems are handled
- How the surfaces are prepared before sealing