Surrey · England

External Mastic in Thorncombe Street

Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Thorncombe Street. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Sealant pulling away from one side of the joint
  • Joints with sealant missing in places
  • Failed seals between different materials

Book external mastic in Thorncombe Street

External mastic for homes and businesses in Thorncombe Street

On houses, flats and commercial buildings across Thorncombe Street, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We work on brickwork movement joints, joints between brick and frames and façade panels, and people most often call us about gaps where render, brick and frames meet and weathered mastic that no longer stretches.

In a village or hamlet like Thorncombe Street, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.

Each job carries a 12-month guarantee, large or small.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Thorncombe Street (GU5)
Region
Surrey
Cover
One year on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Page updated
26 October 2026

Keeping the joints in good condition

Joint life depends on how it’s used and looked after. We suggest:

  • Deal with leaking gutters that soak the joints below
  • Never let anyone fill a movement joint with mortar
  • Clear growth from the base of walls and joints
  • Leave the joints unpainted unless we’ve said otherwise

Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.

An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.

For landlords and businesses

For anyone letting property in or around Thorncombe Street, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.

Housing providers, facilities teams and property managers book us too in Thorncombe Street and across Surrey. Several sites can go on one quote, and we’re fully insured for the work.

Thorncombe Street buildings and the weather

Historic houses like Loseley Park (about 3.4 miles north-west) are a reminder that the area around Thorncombe Street has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Loseley Park, about 3.4 miles north-west, is one of the historic houses in the wider area around Thorncombe Street. Managing a site like Godalming College? Then its movement joints, gutters and trims need looking after like any other building’s. Letting a property close to Godalming station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.

Thorncombe Street is about 5 miles south of Guildford, in Surrey. We provide external mastic to householders, landlords and businesses in Thorncombe Street and nearby, as part of our work across Surrey. Across Surrey, we cover 395 places, Thorncombe Street among them. We also work in Crawley, about 17 miles from Thorncombe Street.

Postcode districts we cover here for external mastic: GU5. You’ll find streets such as Thorncombe Street and Alldens Hill, all of which we cover. If you are just outside Thorncombe Street, we cover Munstead Heath (1 mile west), Birtley Green (1 mile north-east), Grafham (1 mile east), Hascombe (1 mile south) and Bramley (2 miles north-east). Larger places within reach include Guildford (5 miles north), Woking (10 miles north), Camberley (13 miles north-west), Farnham (10 miles west), Dorking (11 miles east) and Frimley (12 miles north-west).

Near you in Thorncombe Street

For rail, the closest station is Godalming station, about 2.3 miles north-west of the centre. A little further out are Milford Hospital (2.4 miles west) and Godalming Museum (2.2 miles north-west). For a walk, there’s Farncombe Wood and Hydon's Ball.

Map of Thorncombe Street © OpenStreetMap contributors

Why act early in Thorncombe Street

Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Around Thorncombe Street, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.

Why Thorncombe Street clients choose us

  • Neat joints and a tidy finish
  • Trusted Arbo and Everbuild sealants
  • 12-month guarantee on every job
  • Experience in homes, commercial sites and hotels

Read how sealant jobs are priced and customer reviews.

What affects the quote in Thorncombe Street

We do not publish a price list. What we look at:

  • Any working-time requirements on site
  • The number of rooms or windows
  • The product the joint needs
  • How much old sealant there is and how hard it is to remove

Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.

What to tell us for a quote

You do not need to know the technical terms. Just tell us:

  • The rough size of the job
  • A few photos by email, if you can
  • Access, such as stairs, a lift or height
  • Any previous sealing or DIY work

We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.

Can I do it myself?

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

How it works

All our tools and materials come with us in the van, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours to a few days, depending on the length of joint and the access. Somewhere like Thorncombe Street 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 we look over the joints with you, agree which to renew and talk through access.
  2. The old mastic and anything lodged in the joint is removed.
  3. We clean both faces of the joint and prime them where the product calls for it.
  4. We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
  5. We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.

Getting ready for the visit

  • Plan for the work area to be out of bounds to pets and children
  • Clear items away from the joints we’re working on
  • Let us know about earlier repairs to the joints

How to get a quote

Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.

Ask for a quote

Advice

What we can’t put right

New sealant can’t fix everything, and we’ll tell you before we start. Sealant will not put right:

  • Movement that’s more than a sealant joint can take
  • Cracks in the bricks or render themselves, away from the joints
  • Adding movement joints to masonry that has none

If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.

Where we work in Thorncombe Street

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

Thorncombe Street: your questions answered

Can you do external mastic in Thorncombe Street?

Yes. We work across London and the South East, and Thorncombe Street is part of that. You can call 0345 464 0079 or email us and tell us what needs doing, and we will send you a clear quote.

Is Thorncombe Street within the area you cover?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

Do you work for landlords and businesses?

Yes, regularly. We can quote for several properties at once.

Can you seal joints between render and window frames?

Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.

Do you remove the old sealant?

Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

Which products do you use?

Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we’re using.

Is it worth trying it myself?

It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Can a movement joint be filled with mortar?

No. Cement or mortar can’t stretch. Where a joint has been mortared, it can often be raked out and sealed properly.

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