Buckinghamshire · England
External & façade joints in Baker's Wood, Buckinghamshire
Professional external mastic in and around Baker's Wood, with old sealant always removed completely and a one-year guarantee.
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
- Hard, crazed mastic that has stopped moving
What happens on the day
We keep the work tidy and contained to the joints we are treating, so you can get on with your day. Expect the work to take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Baker's Wood needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Tell us about any water getting in
- On commercial sites, let us know about site rules
- Try not to wet indoor joints just before the visit
Get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear quote.
Advice
External mastic in Baker's Wood, done properly
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement where mortar or filler would crack. We work on copings & trims, concrete & block and brickwork movement joints, and the jobs we see most are hard, crazed mastic that has stopped moving and sealant that has lost its bond to the brick or render.
Older homes in small places like Baker's Wood may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in, and they need the right sealant at the right depth.
Big or small, you get the same 12-month guarantee.
- Where
- Baker's Wood (UB9)
- Wider area
- Buckinghamshire
- Cover
- One year on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for external mastic
We don’t publish a price list, because jobs vary so much. The quote depends on:
- How much there is to do
- The number of rooms or windows
- Any working-time requirements on site
- Mould in or behind the old joints
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
What to tell us for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- What’s wrong with the joints now
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- A few photos by email, if you can
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.
Places near Baker's Wood
More services for Baker's Wood
Questions from Baker's Wood
Is Baker's Wood within the area you cover?
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.
Do you cover Baker's Wood for external mastic?
Yes, Baker's Wood is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
How long does external mastic last?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges, and reseal at that point.
Will the new joint stand out?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin from the range available.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
How long will you be here?
Most jobs take anything from a few hours to several days, depending on the building, including preparation and clearing up. We will confirm how long when we quote.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Surface by surface
Copings and trims
Metal and stone copings both move with temperature, so the joints need a sealant that stays flexible year round.
Render joints
Render is weaker at the surface than brick, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
What sealant work cannot fix
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Subsidence or other structural problems
- Cracks in the bricks or render themselves, away from the joints
- Cutting new joints into brickwork, which is building work rather than sealant work
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before you book.
Surfaces we seal
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Copings & trims
- Joints between brick and frames
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Show decorators and builders where the movement joints are
- Don’t let climbing plants root in the sealant
- Make sure movement joints aren’t pointed over
- Check the sealant is paintable before painting near it
Keep pressure washers away from the sealant. High-pressure water can lift the edges.
A joint that has stopped moving pushes the movement elsewhere, normally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
Landlord and commercial work in Baker's Wood
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Walls and rooflines in Baker's Wood
Historic houses like Ickenham Hall (about 3.4 miles east) are a reminder that the area around Baker's Wood has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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.
For landlords with property near Denham Golf Club station, outside joints that have cracked can let damp into a rental, so check them between lets. Managing a site like Denham Village School? Then its movement joints, gutters and trims need looking after like any other building’s. In the older streets around Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Baker's Wood is about 4 miles north-west of Hillingdon, in Buckinghamshire. Jobs in Baker's Wood get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. 263 places in Buckinghamshire are on our list, large and small. There’s also a page for London, roughly 19 miles from Baker's Wood.
Postcode districts we cover here for external mastic: UB9. If you need external mastic at a property on Bakers Wood, Redhill and Broken Gate Lane or a nearby road, we can help. Other places close to Baker's Wood include Higher Denham (1 mile north), Tatling End (1 mile west), Rush Green (1 mile south), Gerrards Cross (2 miles west) and Fulmer (2 miles south-west). We also work in nearby towns such as High Wycombe (11 miles west), Chesham (10 miles north-west), Marlow (11 miles west), Amersham (8 miles north-west), Beaconsfield (6 miles north-west) and Chalfont St Peter (3 miles north-west).
What’s near Baker's Wood
We work in homes and buildings around Toby Carvery pub, among other places. Baker's Wood’s nearest station is Denham Golf Club station, roughly 0.5 miles north of the centre. Well-known places in the area include The Pavilions (2.4 miles south-east) and Hillingdon Museum and Archives Services (2.6 miles south-east). Open spaces near Baker's Wood include Horse Shoe Bay and Kingcup Meadows and Oldhouse Wood.