West Berkshire · England
External Mastic in Mortimer West End
External mastic in Mortimer West End from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps where render, brick and frames meet
- Leaking joints around cladding and façade panels
- Sealant pulling away from one side of the joint
About our external mastic in Mortimer West End
On houses, flats and commercial buildings across Mortimer West End, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. If you’re dealing with joints with sealant missing in places and weeds or debris growing in open joints, we can help.
Outside joints can only be sealed when they’re dry, so work in Mortimer West End is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Mortimer West End (RG7)
- Wider area
- West Berkshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly where it can be done safely.
When it is not the sealant
New sealant cannot fix everything, and we will tell you before we start. It will not solve:
- Loose or hollow render, which needs re-rendering
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracks in the bricks or render themselves, away from the joints
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Concrete & block
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
The process
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from a few hours to several days, depending on the building. For a village or hamlet like Mortimer West End, the journey is planned in advance: 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.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- For business premises, tell us about site rules or sign-in
- Mention any parking rules near the property
- Let us know about stairs, lifts or work at height
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, ring 0345 464 0079 or send us an email.
Advice
Mortimer West End: your questions answered
I let a flat near Mortimer station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Mortimer West End?
Yes. Mortimer West End 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.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Where are you based?
Mr Mastic is based in Crawley. We cover Mortimer West End and the rest of West Berkshire.
Is there a guarantee?
Yes. All our work carries a 12-month guarantee.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we are using and why.
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Why deal with it now?
Water gets in through a failed movement joint. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Older cottages and farmhouses around Mortimer West End can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Mortimer West End
- Old sealant always removed completely
- Sealant colour chosen to suit
- 20+ years of sealant experience
- Quality sealants from Arbo and Everbuild
Take a look at what affects the cost and our reviews.
Walls and rooflines in Mortimer West End
Historic houses like Stratfield Saye House (about 4.3 miles east) are a reminder that the area around Mortimer West End has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Silchester Church of England Primary School? Then its movement joints, gutters and trims need looking after like any other building’s. Rented homes near Mortimer station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Mortimer West End is about 2 miles north-east of Tadley, in West Berkshire. From the centre of Mortimer West End to the outskirts, external mastic is available for homes and businesses alike. Our area takes in 155 places across West Berkshire, from the larger towns to small villages. For nearby work, see our Reading page (7 miles or so).
Postcode districts we cover here for external mastic: RG7. Streets in the area include Church Road, Back Lane and Chapel Road. We also cover the places around Mortimer West End: Mortimer (1 mile north-east), Three Ashes (2 miles south), Stratfield Mortimer (2 miles east), Burghfield Common (2 miles north-east) and West End Green (3 miles south-east). Larger places within reach include Newbury (10 miles west), Thatcham (8 miles west), Speenhamland (10 miles west), Spencers Wood (6 miles east), Calcot (5 miles north) and Shaw (10 miles west).
Landmarks near Mortimer West End
Typical jobs here are in homes near Padworth Common Local Nature Reserve, The Red Lion Public House and The Willink School, among other places. For rail, the closest station is Mortimer station, about 2.4 miles east. Well-known places in the area include Calleva Museum (1.1 miles south) and Beaumys Castle (4.8 miles east). The countryside around Mortimer West End includes Hosehill Lake.
Quotes for external mastic in Mortimer West End
You’ll get a clear quote before any work starts. It takes into account:
- How many areas need sealing
- How easy the joints are to reach
- Which sealant suits the joint
- How much there is to do
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- What’s wrong with the joints now
- Any access issues, like height or stairs
- Roughly how big the job is
- Where the property is
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details and send photos if you have them.
Do you need external mastic in Mortimer West End?
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, so it pulls away from the edges.
Most people get in touch when they notice one of these:
- Failed sealant between panels on a façade
- Rigid filler in a joint that should flex
- Damp patches traced to an open external joint
- Sealant that has lost its bond to the brick or render
If you live in an older home near The Parish Church of St.Saviours, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- How the joint is cleaned and prepared
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
- How much experience the applicator has