Surrey · England
External & façade joints in Penton Hook, Surrey
Our applicators work in Penton Hook on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Damp patches traced to an open external joint
- Joints with sealant missing in places
- Weathered mastic that no longer stretches
Common questions in Penton Hook
Do you work for landlords with property near Chertsey station?
Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Is Penton Hook within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What does external mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
What colours does the sealant come in?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. Exterior sealants come in a good range of colours.
Do you use backing rod?
Backing rod goes into deeper joints as a matter of course. It sets the sealant depth and prevents three-sided bonding so the bead can stretch.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Are you fully insured?
Yes, we are fully insured for every job we do.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
External mastic in Penton Hook
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. If you are dealing with leaking joints around cladding and façade panels and old sealant gone brittle and cracked, we can help, on façade panels, render & cladding joints and joints between brick and frames alike.
External sealant needs dry, clean surfaces, so work around Penton Hook is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Whatever the size of the job, it’s backed by our 12-month guarantee in Penton Hook and across Surrey.
- Place
- Penton Hook (KT16)
- Region
- Surrey
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Penton Hook
What else we do in Penton Hook
Walls and rooflines in Penton Hook
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Botleys Mansion (about 2.8 miles south-west) nearby, there’s older building stock in the area around Penton Hook as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
For landlords with property near Chertsey station, split movement joints are easy to miss on a rental until damp shows inside. For an older house near a landmark such as Church of All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Penton Hook is about 2 miles south of Staines-upon-Thames, in Surrey. Penton Hook gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Surrey, we cover 395 places, and Penton Hook is one of them. London is on our list too, about 19 miles from Penton Hook.
We cover every part of the KT16 postcode area for external mastic. We cover properties on Midway Avenue, Bourne Avenue and Albert Avenue and the roads around them. Other places close to Penton Hook include Thorpe (1 mile west), Staines-upon-Thames (2 miles north), Egham Hythe (2 miles north-west), Thorpe Green (2 miles west) and Stroude (2 miles west). We also work in nearby towns such as Guildford (12 miles south), Woking (7 miles south-west), Camberley (11 miles south-west), Epsom (11 miles south-east), Ewell (11 miles east) and Walton-on-Thames (4 miles east).
Near you in Penton Hook
We work in homes and buildings around Three Horse Shoes Public House, Penton Park and The Matthew Arnold School. For rail, the closest station is Chertsey station, about 1.5 miles south. Nearby you will also find Runnymede Hospital (2.3 miles south-west) and Spelthorne Museum (1.9 miles north). For a walk, there’s Fleet Lake and St Ann's Hill.
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Penton Hook, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about earlier repairs to the joints
Ask for a quote
We do not publish a price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or email us.
Related advice
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Avoid pressure-washing directly into sealant joints
- Look over the joints every year, ideally after winter
- Deal with leaking gutters that soak the joints below
- Point out the joints to other trades
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.
What affects the cost of external mastic
The quote reflects the job in front of us. We take into account:
- When we can work, for business premises
- How easy the joints are to reach
- The type of sealant required
- How much there is to do
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. Your quote takes all of that into account.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- If someone has resealed it before
- The address or postcode of the job
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
Getting a quote is simple: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand.
Common problems we fix in Penton Hook
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
If you can see any of these, it’s time to have the joints looked at:
- Brick movement joints where the sealant has split
- Joints pointed up with cement by mistake
- Damp patches traced to an open external joint
- Leaking joints around cladding and façade panels
For site and facilities teams at buildings such as Laleham CofE VA Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Comparing quotes
- Which sealant they’ll use, and why
- How long the guarantee is
- Are they insured?
- Whether VAT is included
What happens if it’s left?
Running new sealant over the old bead rarely lasts. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. Older cottages and farmhouses around Penton Hook can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Penton Hook
- A choice of colours where the product allows
- ARBOMaster approved applicator
- 20+ years of sealant experience
- Sanitary silicone with an anti-fungal additive in wet areas
Take a look at what affects the cost or customer reviews.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
Different surfaces, different methods
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.