Buckinghamshire · England
External Mastic in Hundridge
Professional external mastic in and around Hundridge, 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
- Joints pointed up with cement by mistake
External mastic in Hundridge
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. If you have rain getting behind render or cladding at a joint and weathered mastic that no longer stretches, we can put it right.
In a village or hamlet like Hundridge, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Hundridge (HP16)
- Wider area
- Buckinghamshire
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What sealant work can’t fix
To be straight with you, some problems need a different trade:
- Rising or penetrating damp from elsewhere in the wall
- Cutting new joints into brickwork, which is building work rather than sealant work
- Loose or hollow render, which needs re-rendering
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before you book.
What we seal
- Render & cladding joints
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Keep soil, plants and ivy away from the joints
- Keep movement joints as flexible joints, not mortar
- Look over the joints every year, ideally after winter
- Act on the first splits you see
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick, all bigger jobs than a reseal.
Do you need external mastic in Hundridge?
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
The problems people usually mention when they call include:
- Weathered mastic that no longer stretches
- Sealant pulling away from one side of the joint
- Panel joints letting water in
- Joints pointed up with cement by mistake
Schools such as Hyde Heath Infant School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- What preparation is included
- What insurance they hold
- Who turns up on the day
- How long the guarantee is
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
What external mastic looks like in Hundridge
With historic houses such as Cholesbury Manor House (about 3.4 miles north) nearby, there’s older building stock in the area around Hundridge 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Cholesbury Manor House, about 3.4 miles north, is one of the historic houses in the wider area around Hundridge, and older homes nearby need a sealant that suits their walls. Letting a property close to Great Missenden station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Hundridge is about 2 miles west of Chesham, in Buckinghamshire. We carry out external mastic for householders, landlords and businesses in Hundridge. Hundridge is one of 263 places in Buckinghamshire where we work for external mastic. We also work in Reading, around 23 miles away.
Here we cover the HP16 postcode area for external mastic. Nearby, we also carry out external mastic in Hyde End (1 mile west), South Heath (1 mile west), Chartridge (1 mile north), Ballinger Common (2 miles north-west) and Chesham (2 miles east). Within a short drive, we also cover Aylesbury (10 miles north-west), High Wycombe (7 miles south-west), Marlow (11 miles south-west), Amersham (3 miles south-east), Beaconsfield (7 miles south) and Chalfont St Peter (8 miles south-east).
Near you in Hundridge
Locally, jobs take us to homes and businesses close to The Plough pub and Chiltern Hills Academy. The nearest railway station is Great Missenden station, roughly 2.5 miles west. Nearby you’ll also find Chiltern Hospital (2.1 miles south-west) and Great Missenden (1.7 miles south-west). For a walk, there’s Sands Bank and Pavis Wood.
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Hundridge 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 checking each joint, agreeing the ones to redo and how we’ll reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Let us know about earlier repairs to the joints
- Mention any tricky access
- Tell us about any water getting in
How to get a quote
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We will give you a clear price before any work starts.
Advice
Towns and villages near Hundridge
More services for Hundridge
Leave it or put it right?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In a small place like Hundridge, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
What you get with us
- White, clear, grey or coloured to suit, where the product allows
- Domestic, commercial and hotel work
- Fully insured
- More than 20 years in sealant work
Take a look at our cost guide or what customers say.
Landlords, agents and businesses in Hundridge
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Hundridge: your questions answered
Do you cover Hundridge for external mastic?
Yes, Hundridge is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job.
Do you work for landlords with property near Great Missenden station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area.
When is the sealant fully cured?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
Can you do several jobs on one visit?
Yes. More than one area can go on one quote.
How do I get a quote for external mastic in Hundridge?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or email us and let us know what needs doing and where.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Do you remove the old sealant?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.