Surrey · England
External & façade joints in Great Bookham, Surrey
Sealing brickwork movement joints, render, cladding and façade joints in Great Bookham, with a one-year guarantee on every job. Call for a quick quote.
- Old sealant gone brittle and cracked
- Leaking joints around cladding and façade panels
- Sealant that has lost its bond to the brick or render
How we handle external mastic in Great Bookham
Low-level joints can normally be done from the ground. For joints higher up, give us some details of the building and we’ll confirm what’s needed to reach them safely. We work on façade panels, concrete & block and render & cladding joints, and common reasons people get in touch are joints pointed up with cement by mistake and failed seals between different materials.
Around Great Bookham, garages, outbuildings and extensions all add to the joints on the outside of a home. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Great Bookham (KT23, KT22)
- Wider area
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours to a few days, depending on the length of joint and the access. In a smaller place like Great Bookham, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- 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.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Advice
Places near Great Bookham
What else we do in Great Bookham
Walls and rooflines in Great Bookham
With historic houses such as Polesden Lacey (about 1.6 miles south) nearby, there’s older building stock in the area around Great Bookham as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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.
Rented homes near Bookham station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. Schools such as The Dawnay School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Great Bookham is about 6 miles south-west of Epsom, in Surrey. Every kind of property in Great Bookham is covered for external mastic, old or new, large or small. The work is guaranteed for a year. Our Surrey coverage runs to 395 places, Great Bookham among them. You can also see our page for Crawley, roughly 14 miles from Great Bookham.
Every address in KT23 and KT22 is covered for external mastic. If you need external mastic at a property on High Street, Church Road and Beeches Drive or anywhere close by, our applicators can take on the job. We also cover Fetcham (1 mile north-east), Little Bookham (1 mile south-west), Leatherhead (2 miles north-east), Mickleham (2 miles east) and Westhumble (3 miles south-east). Further out, we also cover Guildford (9 miles west), Woking (9 miles west), Epsom (6 miles north-east), Horley (11 miles south-east), Redhill (9 miles east) and Ewell (7 miles north-east).
Around Great Bookham
Around Great Bookham, our work takes us to homes and buildings near Howard of Effingham School, Manor House School and The Old Crown pub and the streets around them. The nearest railway station is Bookham station, about 0.8 miles north-west. A little further out are Headley Court (4.1 miles east) and Betchworth Castle (4.4 miles south-east). Not far away are Box Hill and Jubilee Wood.
What we cannot put right
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
- Movement that is more than a sealant joint can take
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before you book.
Surfaces we seal
- Copings & trims
- Façade panels
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
Do you need external mastic in Great Bookham?
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
Look out for any of the following:
- Rigid filler in a joint that should flex
- Failed seals between different materials
- Damp patches traced to an open external joint
- Old sealant gone brittle and cracked
For an older house near a landmark such as Church of St Nicolas, an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before booking
- Whether all the old sealant comes out first
- What insurance they hold
- How the joint is cleaned and prepared
- When the joint can take water or movement
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Surface by surface
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so its sealant has to stay flexible.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
What affects the quote in Great Bookham
Call for a quick quote. The main things that affect it are:
- The old material and how stubborn it is
- How easy the joints are to reach
- Any mould that needs treating
- The product the joint needs
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What we need to know
There’s no need for technical detail. Just tell us:
- Photos by email, if that’s easy
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- Where the property is
If you’re in Great Bookham and need external mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Keep water from gutters off the wall
- Never let anyone fill a movement joint with mortar
- Act on the first splits you see
- Leave the joints unpainted unless we’ve said otherwise
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
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.
FAQs for Great Bookham
Can you help a landlord with a rental near Bookham station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Do you cover Great Bookham for external mastic?
Yes. Our work covers London and the South East, and Great Bookham is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
What colours does the sealant come in?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We pick the one that suits your wall best so it doesn’t stand out.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
Is the work guaranteed?
Yes. There’s a 12-month guarantee on every job, large or small.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
What does external mastic cost?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or send us an email and tell us what needs doing and where.