Hertfordshire · England
External & façade joints in Puttenham, Hertfordshire
External mastic across Puttenham and nearby, with every bit of old sealant taken out first.
- Rigid filler in a joint that should flex
- Rain getting behind render or cladding at a joint
- Cracked joints where brick meets render or frames
External mastic in Puttenham
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. If you have water getting into walls through failed joints and sealant pulling away from one side of the joint, we can help, on joints between brick and frames, façade panels and render & cladding joints alike.
In a village or hamlet like Puttenham, 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.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Puttenham (HP23)
- Wider area
- Hertfordshire
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Keeping the joints in good condition
After the cure time, these simple habits help:
- Ask before painting over external sealant
- Fix overflowing gutters above sealed joints
- Act on the first splits you see
- Keep soil, plants and ivy away from the joints
Don’t let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Once a joint cannot move, the wall finds another way, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
DIY sealant or a professional job?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Walls and rooflines in Puttenham
With historic houses such as Ascott House (about 4.9 miles north) nearby, there’s older building stock in the area around Puttenham 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, 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 Long Marston VA Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Cheddington station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Puttenham is about 4 miles east of Aylesbury, in Hertfordshire. From the centre of Puttenham to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Puttenham is one of 381 places in Hertfordshire we cover. There’s also a page for Oxford, roughly 23 miles from Puttenham.
Here we cover the HP23 postcode area for external mastic. Local streets include Church Road, Astrope Lane and Draytonmead Farm Road, and we cover them all. We also cover the places around Puttenham: Astrope (1 mile east), Long Marston (1 mile north-east), Buckland (1 mile south), Aston Clinton (2 miles south) and Broughton (2 miles west). We also work in nearby towns such as Hemel Hempstead (12 miles south-east), Berkhamsted (7 miles south-east), Tring (3 miles south-east), Chorleywood (15 miles south-east), Grovehill (12 miles south-east) and Woodhall Farm (12 miles south-east).
What’s near Puttenham
The nearest railway station is Cheddington station, about 3.3 miles north-east of the centre. Well-known places in the area include Tindal Centre (3.8 miles west) and Pitstone Green Museum (3.2 miles east). The countryside around Puttenham includes Haddington Hill and College Lake nature reserve.
What affects the cost of external mastic
Your quote is based on your job. We look at:
- Which sealant suits the joint
- When we can work, for business premises
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The type of property
- How many joints, rooms or windows are involved
- How we’d reach the joints
- Any previous sealing or DIY work
We don’t publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.
Honest limits
Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. Sealant won’t put right:
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Render that is blown, hollow or coming away
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before booking.
What we seal
- Render & cladding joints
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Façade panels
- Joints between brick and frames
What happens on the day
The work is kept neat and contained to the area we’re working on, so you can carry on as normal. Expect the work to take anything from a few hours to several days, depending on the building, and we explain the cure time before we leave. In a small place like Puttenham, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the joints are inspected and the access agreed.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Mention any parking rules near the property
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Advice
What we are called out for in Puttenham
If plants are growing out of a joint, the sealant has normally failed or was never there. Dirt and roots then trap moisture in the joint and speed up the damage.
The most common problems we see are:
- Joints with sealant missing in places
- Sealant pulling away from one side of the joint
- Failed seals between different materials
- Old sealant gone brittle and cracked
Homes close to Church of St Mary (Church of England) include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Questions to ask before you book
- Whether all the old sealant comes out first
- How the joint is cleaned and prepared
- Are they insured?
- When the joint can take water or movement
Your questions about external mastic in Puttenham
Can you do external mastic in Puttenham?
Yes, Puttenham is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Do you work for landlords with property near Cheddington station?
Yes. We work for letting agents and landlords as well as householders. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Do you work at height?
That depends on the building and the joints. We work on joints that can be reached safely. Tell us about the building and we’ll confirm what access is needed.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
What colours does the sealant come in?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
Do you guarantee your work?
Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.
Towns and villages near Puttenham
Other services in Puttenham
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.