West Berkshire · England
External Mastic in Old Warren
External mastic in Old Warren from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Movement joints with cracked, split or missing sealant
- Water getting into walls through failed joints
- Weeds or debris growing in open joints
What happens on the day
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Old Warren, 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 checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for 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.
How to prepare
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
Getting a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we will take it from there.
Advice
External mastic in Old Warren
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, leaving it bonded to two faces so it can move with the wall. Typical jobs include rain getting behind render or cladding at a joint and sealant that has lost its bond to the brick or render, across copings & trims, render & cladding joints and joints between brick and frames.
Outside joints can only be sealed when they’re dry, so work in Old Warren is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Old Warren (RG7)
- Region
- West Berkshire
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Old Warren buildings and the weather
With historic houses such as The Vyne (about 4.8 miles south) nearby, there’s older building stock in the area around Old Warren as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to The Parish Church of St.Saviours include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Old Warren is about 2 miles north-east of Tadley, in West Berkshire. Anywhere in RG7, we can carry out external mastic at your property. Across West Berkshire, we cover 155 places, Old Warren among them. Reading is on our list too, about 8 miles from Old Warren.
We cover every part of RG7 for external mastic and the streets around it. We also cover Aldermaston Soke (1 mile south), Padworth Common (1 mile north), Pamber Heath (1 mile south), Padworth (1 mile north) and Silchester (2 miles south-east). We also work in nearby towns such as Newbury (9 miles west), Thatcham (6 miles west), Burghfield Common (3 miles north-east), Speenhamland (9 miles west), Spencers Wood (6 miles east) and Calcot (5 miles north-east).
Around Old Warren
Typical jobs here are in homes near Padworth Common Local Nature Reserve and the streets around them. For rail, the closest station is Aldermaston station, about 2.1 miles north-west of the centre. Other landmarks nearby include Calleva Museum (1.5 miles south-east). Green spaces nearby include Hosehill Lake.
What sealant work can’t fix
To be straight with you, some problems need a different trade:
- Adding movement joints to masonry that has none
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Render that’s blown, hollow or coming away
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Where we work in Old Warren
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Façade panels
Signs you need external mastic in Old Warren
Some movement joints have been pointed up with mortar by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
The most common problems we see are:
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Weeds or debris growing in open joints
- Cracked joints where brick meets render or frames
Rented homes near Aldermaston station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What to look for in a quote
- Whether they seal over old material or remove it
- Whether the sealant suits the joint
- How the surfaces are prepared before sealing
- Whether VAT is included
What affects the quote in Old Warren
There’s no set price list, because jobs vary so much. The quote depends on:
- How many rooms, windows or areas are involved
- The amount of work
- The type of sealant required
- Working hours on commercial sites
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, ring 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What we need to know
You do not need to know the technical terms. Just tell us:
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- Roughly how big the job is
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work and send you a clear quote.
Old Warren: your questions answered
Is Old Warren in your area for external mastic?
Yes, Old Warren is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear quote.
Do you cover smaller places like Old Warren?
Yes. Old Warren is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is the work guaranteed?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we’ll sort it.
When will the joints need doing again?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away.
Can you match the colour of my brickwork?
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.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you.
Where are you based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Places near Old Warren
What else we do in Old Warren
How the job changes by surface
Render joints
Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
We work for letting agents and landlords as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.