West Berkshire · England
External Mastic in Hampstead Norreys
Specialist external mastic for Hampstead Norreys: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Brick movement joints where the sealant has split
- Movement joints filled with mortar instead of sealant
- Sealant that has lost its bond to the brick or render
How we handle external mastic in Hampstead Norreys
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. If you are dealing with sealant that has lost its bond to the brick or render and damp patches traced to an open external joint, we can help, on copings & trims, façade panels and concrete & block alike.
Outside joints can only be sealed when they’re dry, so work in Hampstead Norreys is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Location
- Hampstead Norreys (RG18)
- Region
- West Berkshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
The process
Every visit runs the same way: we check the joints, protect the area around them, do the work and tidy away. It generally takes a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Hampstead Norreys, the journey is planned in advance: let us know about lanes, gates and parking. 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.
- Every bit of old sealant and any mortar or debris is cut out.
- 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.
Preparing for the visit
- Move anything stored near the joints
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
How to get a quote
Quotes start with a quick conversation. 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 email us.
Related advice
Why act early in Hampstead Norreys
Resealing a run of joints in one go is generally better than patching one at a time. They’ve weathered the same way. Older cottages and farmhouses around Hampstead Norreys can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why Hampstead Norreys customers choose us
- We are fully insured
- Arbo and Everbuild products
- We agree the colour with you first
- A choice of colours where the product allows
Take a look at what affects the cost and what customers say.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
For anyone letting property in or around Hampstead Norreys, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Adding movement joints to masonry that has none
- Cracking across the wall rather than at a joint
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before you book.
What we seal
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Render & cladding joints
Questions from Hampstead Norreys
Do you cover smaller places like Hampstead Norreys?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is there a guarantee on external mastic in Hampstead Norreys?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Where are you based?
We work from Crawley. We cover Hampstead Norreys and the rest of West Berkshire.
How long does the job take?
A typical job takes a few hours to a few days, depending on the length of joint and the access, including preparation and clearing up. We’ll confirm how long when we quote.
Walls and rooflines in Hampstead Norreys
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.
If you look after a building such as Hampstead Norreys C.E. Primary School, its movement joints, gutters and trims need looking after like any other building’s. If you live in an older home near Church of St Mary, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Hampstead Norreys is about 6 miles north of Thatcham, in West Berkshire. We provide external mastic to homes and businesses in Hampstead Norreys. We cover 155 towns and villages across West Berkshire, from the larger towns to small villages. Our Reading page covers work nearby (12 miles or so).
Jobs for external mastic in RG18 works the same way as everywhere else we cover. Local streets include Church Street, Scottalls Lane and Forge Hill, all of which we cover. Nearby, we also carry out external mastic in Yattendon (2 miles south-east), Little Hungerford (2 miles south-west), Oare (2 miles south-west), Frilsham (2 miles south-east) and Wellhouse (2 miles south). Further out, we also cover Newbury (7 miles south-west), Thatcham (6 miles south), Burghfield Common (10 miles south-east), Speenhamland (6 miles south-west), Hungerford (13 miles west) and Spencers Wood (13 miles south-east).
Near you in Hampstead Norreys
In Hampstead Norreys, that means homes and buildings near The Downs School and The White Hart pub. Well-known places in the area include Hampstead Norris Castle (under half a mile south) and West Berkshire Community Hospital (5.8 miles south-west).
Towns and villages near Hampstead Norreys
More services for Hampstead Norreys
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What affects the cost of external mastic
There’s no set price list. The quote depends on:
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
- Access and height
- Working hours on commercial sites
The cost depends on the amount of work, 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.
Helping us quote
Before you ask for a quote, have a think about:
- Whether it’s a home or a business
- The address or postcode of the job
- Any access issues, like height or stairs
- Photos by email, if that’s easy
We don’t publish a price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Keep movement joints as flexible joints, not mortar
- Deal with leaking gutters that soak the joints below
- Walk round the building once a year and look at the joints
- Leave the joints unpainted unless we’ve said otherwise
Keep pressure washers away from the sealant. High-pressure water can lift the edges.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.