Surrey · England

Sand Mastic in Thorncombe Street

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Thorncombe Street. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Old sand mastic that has cracked, crumbled or fallen out
  • Gaps between timber frames and stone or brick
  • Old cement repairs round a window that have failed

Book sand mastic in Thorncombe Street

Common questions in Thorncombe Street

Is Thorncombe Street in your area for sand mastic?

Yes. Our work covers London and the South East, and Thorncombe Street is part of that. Just call 0345 464 0079 or email us with a few details of the job.

Do you work for landlords with property near Godalming station?

Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.

Is it possible to paint over sand mastic?

Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.

Will you leave a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

Can I choose the sealant colour?

Usually, yes. White, clear and grey are common, and other colours are available, and we’ll agree it with you first.

Can I add another job to the visit?

Yes. Just list everything you need and you’ll get one quote.

Should I check with the council before work on a listed or conservation-area home?

Checking first is sensible. Your local planning authority can say if consent is needed for listed or conservation-area properties.

Will the old sealant be removed?

Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.

How we handle sand mastic in Thorncombe Street

Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditional guidance is not to paint over it, so ask us before you decorate. Typical jobs include open joints round the window box and mastic dropping out of the joint, across brick reveals, tenement windows and period & listed homes.

Outdoor sealant needs dry, clean surfaces, so work on frames around Thorncombe Street is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.

A 12-month guarantee comes with the work, just as it does everywhere we cover.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Thorncombe Street (GU5)
Region
Surrey
Cover
12 months on all our work
Price
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026

The process

Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours for a single window, longer for several. In a small place like Thorncombe Street, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Each surround is checked first.
  2. The joint is raked out and cleaned.
  3. Large voids are packed out.
  4. We point the joint with sand mastic by hand.
  5. The finish is dressed neatly.

How to prepare

  • Keep children and pets away from the work area
  • Clear items away from the joints we’re working on
  • Where the joints are inside, avoid wetting them before we arrive

Getting a quote

We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.

Get a quick quote

Related advice

What we cannot put right

We’d rather tell you now than do work that will not last, so these are the limits:

  • Sashes that rattle, stick or will not open
  • Masonry that needs repairing
  • Cracked or broken glass

If you are not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before booking.

What we seal

  • Stone surrounds
  • Brick reveals
  • Period & listed homes
  • Tenement windows
  • Timber door frames
  • Sash and case windows

How to look after the new joints

Aftercare is simple:

  • Get any rot dealt with first
  • Keep sills and gutters clear so water drains away
  • Avoid patching sand mastic with silicone
  • Take care around the mastic when scraping paint

Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.

Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.

What sand mastic looks like in Thorncombe Street

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 frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Loseley Park, about 3.4 miles north-west, is one of the historic houses in the wider area around Thorncombe Street. For site and facilities teams at buildings such as Godalming College, its window and door frames need their mastic kept sound, just like a home’s.

Thorncombe Street is about 5 miles south of Guildford, in Surrey. We provide sand mastic to householders, landlords and businesses in Thorncombe Street and nearby. Thorncombe Street is one of 395 towns and villages in Surrey we cover for sand mastic. We also work in Crawley, about 17 miles from Thorncombe Street.

We cover every part of the GU5 postcode area for sand mastic. Streets in the area include Thorncombe Street and Alldens Hill. If you’re 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).

Local landmarks in Thorncombe Street

Thorncombe Street’s nearest station is Godalming station, about 2.3 miles north-west of the centre. Nearby you will also find Milford Hospital (2.4 miles west) and Godalming Museum (2.2 miles north-west). The countryside around Thorncombe Street includes Farncombe Wood and Hydon's Ball.

Map of Thorncombe Street © OpenStreetMap contributors

What the job involves on each surface

Stone surrounds

Stone surrounds suit sand mastic well. The finish blends with the masonry.

Brick reveals

Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.

For landlords and businesses

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.

From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

Common problems we fix in Thorncombe Street

Timber swells and shrinks with the weather. The movement cracks the mastic over time.

Most people get in touch when they notice something like this:

  • Patchy fillers round a sash window
  • Mastic that needs renewing before redecorating
  • Old sand mastic that has cracked, crumbled or fallen out
  • Wind and rain getting in round a sash window

Rented homes near Godalming station change hands often, and any sash windows need sound mastic to keep draughts and rain out.

Comparing quotes

  • How the colour is chosen
  • Whether all the old sealant comes out first
  • What the cure time is
  • Which sealant they’ll use, and why

10 questions to ask before you book

Quotes for sand mastic in Thorncombe Street

The quote reflects the job in front of us. We look at:

  • Whether old sealant or filler has to be cut out
  • Any working-time requirements on site
  • Whether the work is at height
  • Which sealant suits the joint

Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will explain what it covers.

What to tell us for a quote

The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:

  • How we’d reach the joints
  • A few pictures by email, if you can
  • Whether it’s a home or a business
  • Where the property is

Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we’ll take it from there.

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