Oxfordshire · England

External & façade joints in Fyfield, Oxfordshire

External mastic for Fyfield, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Joints with sealant missing in places
  • Leaking joints around cladding and façade panels
  • Movement joints filled with mortar instead of sealant

Book external mastic in Fyfield

External mastic for homes and businesses in Fyfield

Low-level joints can usually be done from the ground. For joints higher up, give us some details of the building and we will confirm what access is needed. We work on render & cladding joints, brickwork movement joints and copings & trims, and people most often call us about panel joints letting water in and failed seals between different materials.

Older homes in small places like Fyfield may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in.

Your job is guaranteed for a year, as with all our work.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Fyfield (OX13)
Region
Oxfordshire
Guarantee
One year on every job
Price
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026

What affects the quote in Fyfield

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • Which sealant suits the joint
  • How much old sealant there is and how hard it is to remove
  • When we can work, for business premises
  • Access and height

What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.

Helping us quote

When you call or email, these details help:

  • The rough size of the job
  • What the problem is, such as mould, gaps, leaks or cracking
  • Where the job is, and your postcode
  • Access, such as stairs, a lift or height

Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

Looking after it afterwards

How long the joints last depends on use and care. Here’s what we suggest:

  • Make sure movement joints are not pointed over
  • Avoid pressure-washing directly into sealant joints
  • Clear growth from the base of walls and joints
  • Get split or bare joints resealed while the damage is small

Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.

Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage.

Why deal with it now?

Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. Older cottages and farmhouses around Fyfield can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

What you get with us

  • Experience in homes, commercial sites and hotels
  • Anti-fungal silicone where joints get wet
  • We’re fully insured
  • Old sealant always removed completely

Read our cost guide or what customers say.

What we’re called out for in Fyfield

Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall.

It’s worth asking for a quote if you see:

  • Old sealant gone brittle and cracked
  • Leaking joints around cladding and façade panels
  • Moss and dirt in joints with no sealant left
  • Cracked joints where brick meets render or frames

Schools such as Abingdon Preparatory School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Questions to ask before you book

  • How much experience the applicator has
  • Whether all the old sealant comes out first
  • Whether they’re fully insured
  • Which colour the sealant will be

How to choose a mastic man

Outside joints around Fyfield

With historic houses such as Appleton Manor (about 2.2 miles north-east) nearby, there’s older building stock in the area around Fyfield as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For an older house near a landmark such as Church of St Nicholas, older walls, gutters and the joints where extensions meet them need a flexible sealant.

Fyfield is about 5 miles west of Abingdon-on-Thames, in Oxfordshire. Every kind of property in Fyfield is covered for external mastic, old or new, large or small. The work is guaranteed for a year. Fyfield is one of 443 places in Oxfordshire where we work. Our Oxford page covers work nearby, about 8 miles away.

All of OX13 is covered for external mastic, from the main roads to the quietest streets. If you need external mastic at a property on Main Road, Netherton Lane and St John's Close or anywhere close by, our applicators can take on the job. Other places close to Fyfield include Netherton (1 mile north-west), Tubney (1 mile east), Frilford Heath (2 miles east), Frilford (2 miles south-east) and Marcham (2 miles south-east). Larger places within reach include Oxford (8 miles north-east), Didcot (8 miles south-east), Abingdon-on-Thames (5 miles east), Witney (8 miles north-west), Carterton (10 miles north-west) and Wantage (7 miles south).

What’s near Fyfield

Typical jobs here are in homes near The White Hart Inn and the streets around them. Nearby you will also find Hinton Waldrist Castle (2.9 miles west) and Abingdon Community Hospital (4 miles east). For a walk, there’s Cumnor Hill and Hitchcopse Pit.

Map of Fyfield © OpenStreetMap contributors

What happens on the day

At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on the building, depending on how much there is to do. Somewhere like Fyfield 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. We look at every joint and agree a colour to suit the wall.
  2. Failed sealant is removed back to clean, sound faces.
  3. Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
  4. We prime the faces where required.
  5. A low-modulus exterior sealant is gunned in and tooled to a neat finish.

Before we arrive

  • Where the joints are inside, avoid wetting them before we arrive
  • Mention if the joints have been sealed before
  • Move anything stored near the joints

Get a quote

To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.

Get a price

Read more

What sealant work cannot fix

New sealant can’t fix everything, and we’ll tell you before work begins. It won’t solve:

  • Damp that isn’t coming from the joint
  • Walls that need new movement joints cut into them
  • Movement that is more than a sealant joint can take

If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.

Surfaces we seal

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

Common questions in Fyfield

Is there a guarantee on external mastic in Fyfield?

Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.

Is Fyfield within the area you cover?

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

Is it OK to seal over old sealant?

No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.

How long does external mastic take?

That depends on how much there is to do, but as a guide it takes a few hours to a few days, depending on the length of joint and the access. We’ll give you a better idea when we quote.

How long does external mastic last?

It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.

What does external mastic cost?

It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or send us an email with a short description of the job.

Do you do commercial work?

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

Does someone need to be in?

That depends on where the joints are. Inside work needs someone to give us access.

Can I do it myself?

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.

A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.

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