Oxfordshire · England

External Mastic in Enstone

Sealing brickwork movement joints, render, cladding and façade joints for Enstone, backed by a one-year guarantee. Ask us for a quote.

  • Water getting into walls through failed joints
  • Weeds or debris growing in open joints
  • Old sealant gone brittle and cracked

Book external mastic in Enstone

How to look after the new joints

Looking after new joints is easy, and it makes a real difference:

  • Walk round the building once a year and look at the joints
  • Keep high-pressure jets off the joints
  • Leave the joints unpainted unless we have said otherwise
  • Get split or bare joints resealed while the damage is small

Avoid pressure-washing straight into the joints. High-pressure water can lift the edges and let water in behind.

Small splits are the time to act. Then it’s a straightforward cut-out and reseal.

External mastic in Enstone, done properly

Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the joint does not stand out. If you have brick movement joints where the sealant has split and panel joints letting water in, we can help.

Outside joints can only be sealed when they’re dry, so work in Enstone is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.

We stand behind the work with a 12-month guarantee, so you are covered after we’ve gone.

Location
Enstone (OX7)
Region
Oxfordshire
Cover
A year, on every job
Price
A clear price before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Common questions in Enstone

Can you help a landlord with a rental near Charlbury station?

Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.

Do you cover smaller places like Enstone?

Yes, Enstone is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Will you leave a mess?

Not at all. We work neatly, protect the area around the joints and tidy up afterwards.

Are you ARBOMaster approved?

Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.

Do you work for hotels and businesses?

Yes. Hotels, offices and other businesses use us and we are fully insured.

Can new sealant go over the old?

No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.

Can you seal joints between two different materials?

Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.

Do I need to be at home?

That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.

What happens if it’s left?

Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. In a small place like Enstone, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Combining jobs into one visit is generally more efficient than separate visits. You will get one clear quote for the whole job.

Why book with us

  • Tidy, careful work
  • 12-month guarantee on every job
  • 20+ years of sealant experience
  • Approved under the ARBOMaster scheme

Read what affects the cost and what customers say.

What sealant work cannot fix

Some problems need a builder, plumber or other trade rather than us:

  • Cracks in the bricks or render themselves, away from the joints
  • Structural movement, which needs a surveyor or engineer
  • Rising or penetrating damp from elsewhere in the wall

If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.

Where we work in Enstone

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

Enstone buildings and the weather

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.

If you let a flat or house near Charlbury station, outside joints that have cracked can let damp into a rental, so check them between lets. If you look after a building such as Enstone Primary School, its movement joints, gutters and trims need looking after like any other building’s.

Enstone is about 9 miles north of Witney, in Oxfordshire. If you need external mastic in Enstone, it’s easy to get a quote: please phone 0345 464 0079 or email us. We are based in Crawley and cover Oxfordshire, Enstone included. 443 places in Oxfordshire are on our list, large and small. We also work in Oxford, about 15 miles from Enstone.

All of OX7 is covered for external mastic. Whether your property is on Oxford Road, Venvell Close and Chapel Lane or a nearby road, our applicators can take on the job. We also cover the places around Enstone: Church Enstone (1 mile north), Kiddington (2 miles east), Little Tew (3 miles north), Great Tew (3 miles north) and Swerford (4 miles north). Within a short drive, we also cover Oxford (15 miles south-east), Banbury (11 miles north-east), Bicester (13 miles east), Witney (9 miles south), Carterton (12 miles south-west) and Kidlington (10 miles south-east).

Landmarks near Enstone

We work in homes and buildings around The Harrow Inn. For rail, the closest station is Charlbury station, roughly 3.3 miles south-west of the centre. Well-known places in the area include Old Forge Museum (Great Tew) (3.4 miles north). Green spaces nearby include Blenheim Farm.

Map of Enstone © OpenStreetMap contributors

Should I try it myself first?

If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.

If you’ve already had a go yourself, that’s fine. We cut it out and start again.

For landlords and businesses

We also work for property managers and facilities teams. Several sites can go on one quote.

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.

Signs you need external mastic in Enstone

Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.

The most common problems we see are:

  • Failed seals between different materials
  • Rigid filler in a joint that should flex
  • Rain getting behind render or cladding at a joint
  • Plants rooting in failed movement joints

For an older house near a landmark such as Church of St Kenelm, an extension built onto an older house moves differently, and the joint between them takes the strain.

Before you book anyone

  • What preparation is included
  • Whether they seal over old material or remove it
  • Whether you can choose the colour
  • What happens if they find a problem under the old sealant

Our hiring checklist

How the visit works

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Enstone, the journey is planned in advance: 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. Every bit of old sealant and any mortar or debris is cut out.
  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.

How to prepare

  • On commercial sites, let us know about site rules
  • Mention any parking rules near the property
  • Mention if the joints have been sealed before

Ask for a quote

For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work and send you a clear quote.

Ask for a quote

Related advice

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