West Berkshire · England

Beech Hill External Mastic

Professional external mastic in and around Beech Hill, with old sealant always removed completely and a 12-month guarantee.

  • 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 Beech Hill

Can I do it myself?

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

About our external mastic in Beech Hill

Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a colour to suit. If you have brick movement joints where the sealant has split and weathered mastic that no longer stretches, we can help, on brickwork movement joints, render & cladding joints and façade panels alike.

Around Beech Hill, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.

Every job comes with our one-year guarantee.

Where
Beech Hill (RG7)
Wider area
West Berkshire
Guarantee
12 months on all our work
Price
Quoted before any work starts
Call
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

What we do, step by step

There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. Somewhere like Beech Hill needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. First, the joints are inspected and the access agreed.
  2. We cut out the old mastic and rake out anything in the joint.
  3. Joint faces are cleaned back and primed if the sealant needs it.
  4. We fit closed-cell backing rod to control the depth.
  5. The exterior sealant is applied, tooled and checked along its length.

Before we arrive

  • Move anything stored near the joints
  • Mention any sign-in or site rules at work premises
  • Keep children and pets away from the work area

How to get a quote

To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.

Get a price

Related advice

What sealant work can’t fix

It helps to know what we cannot do too:

  • Cracked brickwork or render that needs a builder or plasterer
  • Walls that need new movement joints cut into them
  • Subsidence or other structural problems

Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before booking.

Where we work in Beech Hill

  • Brickwork movement joints
  • Render & cladding joints
  • Concrete & block
  • Joints between brick and frames
  • Copings & trims
  • Façade panels

How we quote for external mastic

Every job gets its own quote. This is what makes a difference:

  • The number of rooms or windows
  • Any mould that needs treating
  • The number and length of the joints
  • Whether old sealant or filler has to be cut out

We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.

Helping us quote

To make quoting easier, please include:

  • Access, such as stairs, a lift or height
  • Roughly how big the job is
  • What the problem is, such as mould, gaps, leaks or cracking
  • Photos by email, if that’s easy

Need a quote? Please ring 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before we start.

When to call us in Beech Hill

Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.

Common reasons people contact us include:

  • Joints where the bead has come unstuck
  • Moss and dirt in joints with no sealant left
  • Water getting into walls through failed joints
  • Failed sealant between panels on a façade

If you look after a building such as Lambs Lane Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Before you book anyone

  • What insurance they hold
  • When the joint can take water or movement
  • What guarantee comes with the work
  • Whether you can choose the colour

Choosing a sealant specialist

Landlords, agents and businesses in Beech Hill

Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.

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.

Surface by surface

Cladding and façade panels

Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.

Joints between dissimilar materials

Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant so the movement is taken up.

External mastic in Beech Hill: local notes

Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Stratfield Saye House (about 1.7 miles south) are a reminder that the area around Beech Hill 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.

Rented homes near Mortimer station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. For an older house near a landmark such as Church of St Mary the Virgin, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Beech Hill is about 5 miles south of Reading, in West Berkshire. Across the RG7 area, we cover external mastic for homes and businesses. Across West Berkshire, we cover 155 places, Beech Hill among them.

All of RG7 is covered for external mastic. If you need external mastic at a property on Wood Lane and Vale View Drive or a nearby road, our applicators can take on the job. Other places close to Beech Hill include Grazeley (2 miles north), Swallowfield (2 miles east), Riseley (2 miles south-east), Spencers Wood (2 miles north-east) and Heckfield Heath (2 miles south-east). Larger places within reach include Newbury (14 miles west), Thatcham (11 miles west), Burghfield Common (3 miles north-west), Speenhamland (14 miles west), Calcot (5 miles north-west) and Shaw (14 miles west).

Local landmarks in Beech Hill

Typical jobs here are in homes near Swallowfield Meadow and Oakbank, among other places. For rail, the closest station is Mortimer station, roughly 1.8 miles west. A little further out are Royal Berkshire Hospital (5.5 miles north) and Beaumys Castle (0.6 miles east). Green spaces nearby include Longwater and The Marshes Local Nature Reserve.

Map of Beech Hill © OpenStreetMap contributors

Beech Hill questions

Is Beech Hill within the area you cover?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

I let a flat near Mortimer station. Can you help?

Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.

Do the sealants smell?

There can be a smell while the sealant cures, but it fades. Ventilation helps.

Why is there a gap in my brick wall?

A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.

Does someone need to be in?

If the work is inside, we need someone to let us in. After that, you can carry on with your day.

How long does the job take?

Typically it takes a few hours for a handful of joints, longer for a whole elevation. Bigger jobs take longer.

Can you reach joints on upper floors?

It depends on the height and the site. Ground-floor joints are simple; for higher work, tell us about the building and we will confirm what’s needed.

How long does external mastic last?

There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Our work comes with a one-year guarantee.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job