Surrey · England
External Mastic in Christmas Pie
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Christmas Pie. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Moss and dirt in joints with no sealant left
- Water getting into walls through failed joints
- Joints where the bead has come unstuck
How we handle external mastic in Christmas Pie
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a colour to suit. If you’re dealing with cracked joints where brick meets render or frames and sealant pulling away from one side of the joint, we can help, on brickwork movement joints, concrete & block and joints between brick and frames alike.
External sealant needs dry, clean surfaces, so work around Christmas Pie is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Location
- Christmas Pie (GU3)
- Region
- Surrey
- Cover
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Keep water from gutters off the wall
- Act on the first splits you see
- Never let anyone fill a movement joint with mortar
- Look over the joints every year, ideally after winter
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Outside joints around Christmas Pie
With historic houses such as Wanborough Manor (about 0.6 miles south-east) nearby, there’s older building stock in the area around Christmas Pie as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Puttenham CofE Infant School, its movement joints, gutters and trims need looking after like any other building’s. For landlords with property near Wanborough station, split movement joints are easy to miss on a rental until damp shows inside.
Christmas Pie is about 2 miles east of Ash, in Surrey. Wherever you are in the GU3 postcode area, we cover external mastic for homes and businesses. Across Surrey, we cover 395 places, Christmas Pie among them. For nearby work, see our Reading page, about 20 miles away.
All of GU3 is covered for external mastic, from the main roads to the quietest streets. Whether your property is on Cull's Road, Westwood Lane and Flexford Road or anywhere close by, we can help. Other places close to Christmas Pie include Flexford (1 mile north), Wanborough (1 mile south-east), Normandy (1 mile north), Puttenham (1 mile south) and Willey Green (1 mile north-east). Larger places within reach include Guildford (4 miles east), Woking (7 miles north-east), Camberley (7 miles north), Farnham (6 miles west), Egham (14 miles north) and Walton-on-Thames (15 miles north-east).
Local landmarks in Christmas Pie
We work in homes and buildings around Ash Manor School. Christmas Pie has its own railway station: Wanborough station. Other landmarks nearby include Ash Museum (2.1 miles west) and Guildford Hospital (2.6 miles east). The countryside around Christmas Pie includes Ash Ranges and Hog's Back.
Do you need external mastic in Christmas Pie?
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
Look out for these signs:
- Joints where the bead has come unstuck
- Brick movement joints where the sealant has split
- Gaps where render, brick and frames meet
- Rigid filler in a joint that should flex
For an older house near a landmark such as Church of St Bartholomew, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- When the joint can take water or movement
- Is VAT in the price?
- Which colour the sealant will be
- How long the guarantee is
What affects the cost of external mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- The old material and how stubborn it is
- How many areas need sealing
- Working hours on commercial sites
- Mould in or behind the old joints
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved and send you a clear quote.
Can I do it myself?
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.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Common questions in Christmas Pie
Is Christmas Pie in your area for external mastic?
Yes. We work across London and the South East, and Christmas Pie is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.
Do you cover smaller places like Christmas Pie?
Yes. Christmas Pie is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where are you based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is generally more efficient.
Are you fully insured?
Yes. Full insurance covers our work.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
How long does external mastic take?
That depends on the amount of work, but most jobs take a few hours for a handful of joints, longer for a whole elevation. We’ll tell you when we quote.
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 near the open joint, so the problem grows beyond the joint itself. Around Christmas Pie, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
What you get with us
- Over 20 years’ experience
- Approved under the ARBOMaster scheme
- Homes, businesses and hotels
- 180+ five-star Google reviews
Read what affects the cost and what customers say.
How it works
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to several days, depending on the building from start to finish. Somewhere like Christmas Pie needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked and the colour of the new sealant agreed.
- 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.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or drop us an email.
Read more
Nearby places to Christmas Pie
More services for Christmas Pie
Different surfaces, different methods
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.