Surrey · England

Upper Eashing Sand Mastic

Window and door surrounds in Upper Eashing need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Draughty sash windows at the surround
  • Tired mastic found when preparing windows for paint
  • Silicone on a period window that looks wrong

Need sand mastic in Upper Eashing?

What affects the cost of sand mastic

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

  • Mould in or behind the old joints
  • How much old sealant there is and how hard it is to remove
  • How many areas need sealing
  • How easy the joints are to reach

Combining jobs into one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.

What we need to know

Before you ask for a quote, have a think about:

  • Whether it has been sealed before
  • What the problem is, such as mould, gaps, leaks or cracking
  • Where the property is
  • The rough size of the job

If you are in Upper Eashing and need sand mastic, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.

Sand mastic in Upper Eashing, done properly

For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. If you’re dealing with mastic round period door frames that has failed and a silicone bead on a sash window that spoils the look, we can help, on stone surrounds, period & listed homes and timber door frames alike.

In a village or hamlet like Upper Eashing, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.

All our work comes with our one-year guarantee.

Where
Upper Eashing (GU7)
Region
Surrey
Guarantee
12 months on all our work
Price
A clear price before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

What we cannot put right

To be straight with you, some problems need a different trade:

  • Rotten sashes, sills or window boxes (a joiner’s job)
  • Damaged stone surrounds
  • Sashes that rattle, stick or won’t open

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

Where we work in Upper Eashing

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

How to look after the new joints

Good habits help new joints last longer. A few tips:

  • Do not run silicone over sand mastic
  • Plan mastic work ahead of painting
  • Take care around the mastic when scraping paint
  • Keep sills and gutters clear so water drains away

Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.

An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.

Common questions in Upper Eashing

Do you cover Upper Eashing for sand mastic?

Yes. Our work covers London and the South East, and Upper Eashing is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.

Will you come out to Upper Eashing?

Yes, Upper Eashing is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Can I paint the new mastic?

Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we will advise.

Do you offer different sealant colours?

In most cases you can choose. We’ll explain which colours are available.

Do you do commercial work?

Yes, regularly. We can plan bigger jobs in stages to suit the site.

When will the new mastic be hard?

The surface skins quite quickly, then hardens over a longer period. Timing depends on the weather and the joint.

Is it OK to seal over old sealant?

No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.

Can I add another job to the visit?

Yes. Just list everything you need and you will get one quote.

Why act early in Upper Eashing

A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. Around Upper Eashing, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

The cost depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.

Why us?

  • 4.9 on Google from 180+ five-star reviews
  • 20+ years of sealant experience
  • Approved under the ARBOMaster scheme
  • A 12-month guarantee on all work

Read how sealant jobs are priced and our reviews.

What the job involves on each surface

Brick reveals

Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.

Period and listed homes

Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.

What we’re called out for in Upper Eashing

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

Keep an eye out for these signs:

  • Mastic worn away on windows facing the weather
  • Mastic dropping out of the joint
  • Silicone on a period window that looks wrong
  • Old cement repairs round a window that have failed

In the older streets around St Mark's Church and Community Centre, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Comparing quotes

  • What insurance they hold
  • Is VAT in the price?
  • How long to leave it before use
  • Whether they seal over old material or remove it

Choosing a sealant specialist

Sand mastic in Upper Eashing: local notes

With historic houses such as Loseley Park (about 2.7 miles north-east) nearby, there’s older building stock in the area around Upper Eashing as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you look after a building such as St Mark and All Saints Church of England Primary, the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Godalming station? Then any sash windows need sound mastic to keep draughts and rain out.

Upper Eashing is about 5 miles south-west of Guildford, in Surrey. Every kind of property in Upper Eashing is covered for sand mastic. Every job comes with our 12-month guarantee. Upper Eashing is one of 395 towns and villages in Surrey where we work. Our Crawley page covers work nearby.

Every address in GU7 is covered for sand mastic, from the main roads to the quietest streets. Local streets include Eashing Lane and Lower Eashing. If you’re just outside Upper Eashing, we cover Lower Eashing (1 mile north-west), Aaron's Hill (1 mile east), Norney (1 mile north-west), Milford (1 mile south) and Peper Harow (1 mile west). Within a short drive, we also cover Guildford (5 miles north-east), Woking (10 miles north), Camberley (11 miles north), Farnham (7 miles west), Dorking (14 miles east) and Frimley (10 miles north-west).

What’s near Upper Eashing

Locally, jobs take us to homes and businesses close to Under Green, St Hilary's School and The Stag on the River pub, among other places. For rail, the closest station is Godalming station, about 1.1 miles east of the centre. A little further out are Milford Hospital (1.4 miles south-east) and Guildford Castle (4.6 miles north-east). The countryside around Upper Eashing includes Frith Hill and Lower Lake.

Map of Upper Eashing © OpenStreetMap contributors

What happens on the day

At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. Somewhere as small as Upper Eashing, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Each surround is checked first.
  2. We rake out the old mastic and clean the joint.
  3. We fill deep gaps so the new mastic isn’t too thick.
  4. New sand mastic is applied and shaped by hand.
  5. We finish the mastic to a tidy line.

Before we arrive

  • Try not to wet indoor joints just before the visit
  • Clear items away from the joints we are working on
  • Let us know about earlier repairs to the joints

Ask for a quote

To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We will send you a clear quote before any work starts.

Ask for a quote

Advice

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