Surrey · England
Aaron's Hill Sand Mastic
Sand mastic for Aaron's Hill and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Patchy fillers round a sash window
- Crumbling sand mastic round a window
- Tired mastic found when preparing windows for paint
Leave it or put it right?
If you’re redecorating, renew the mastic first. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. In an older home around Aaron's Hill, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Why book with us
- Homes, businesses and hotels
- A 12-month guarantee on all work
- Arbo and Everbuild products
- An ARBOMaster approved applicator
Take a look at our cost guide and what customers say.
About our sand mastic in Aaron's Hill
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. We are often asked to deal with gaps where the frame meets the masonry and silicone on a period window that looks wrong, on timber door frames, stone surrounds and period & listed homes.
In smaller places like Aaron's Hill, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Location
- Aaron's Hill (GU7)
- Region
- Surrey
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
At the end, we look at the finished work together. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. In a smaller place like Aaron's Hill, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- Move anything stored near the joints
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or email us.
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Quotes for sand mastic in Aaron's Hill
There’s no set price list, because jobs vary so much. What we look at:
- Whether the work is at height
- Whether there’s mould to deal with
- The number and length of the joints
- The type of sealant required
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
Helping us quote
To help us quote quickly, please include:
- How many joints, rooms or windows are involved
- The type of property
- What’s wrong with the joints now
- Whether it has been sealed before
There’s no standard price list. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or email us.
FAQs for Aaron's Hill
Is Aaron's Hill within the area you cover?
Yes, Aaron's Hill 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 you do sand mastic in Aaron's Hill?
Yes, Aaron's Hill is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we are using and why.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Will the old sealant be removed?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
I rent my home. Can I book you?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Do you work for letting agents?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.
What sealant work cannot fix
New sealant cannot fix everything, and we’d rather say so up front. Sealant will not put right:
- Putty and glazing repairs
- Decisions on consent for listed homes
- Crumbling stone or brickwork round the window
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before you book.
Where we work in Aaron's Hill
- Tenement windows
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Timber door frames
- Brick reveals
Also near Aaron's Hill
Other services in Aaron's Hill
How the job changes by surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
A careful DIYer can reseal a simple joint, 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.
Windows and doors in Aaron's Hill
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Loseley Park (about 2.5 miles north-east) are a reminder that the area around Aaron's Hill has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as St Mark and All Saints Church of England Primary, its window and door frames need their mastic kept sound, just like a home’s. 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.
Aaron's Hill is about 1 mile west of Godalming, in Surrey. From the centre of Aaron's Hill to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Aaron's Hill is one of 395 towns and villages in Surrey where we work. Crawley is on our list too, about 20 miles from Aaron's Hill.
Our applicators cover all of GU7 for sand mastic and the streets around it. Local streets include Mayen Road, Grove Road and Holly Lane, and we cover them all. Main roads around Aaron's Hill include the A3100. We also cover the places around Aaron's Hill: Upper Eashing (1 mile west), Godalming (1 mile east), Lower Eashing (1 mile west), Milford (1 mile south-west) and Tuesley (1 mile south). Further out, we also cover Guildford (5 miles north-east), Woking (10 miles north), Camberley (11 miles north), Farnham (7 miles west), Dorking (13 miles east) and Frimley (10 miles north-west).
What’s near Aaron's Hill
Typical jobs here are in homes near St Hilary's School, Phillips Memorial Park and The Inn on the Lake, among other places. For rail, the closest station is Godalming station, about 0.6 miles east of the centre. Other landmarks nearby include Godalming Museum (0.7 miles east) and Guildford Castle (4.3 miles north-east). For a walk, there’s Frith Hill and Lower Lake.
Signs you need sand mastic in Aaron's Hill
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows.
The problems people generally mention when they call include:
- A silicone bead on a sash window that spoils the look
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
- Wind and rain getting in round a sash window
If you let a flat or house near Godalming station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before you book
- What preparation is included
- Whether VAT is included
- How much experience the applicator has
- Which sealant they’ll use, and why