Surrey · England
Sand mastic for sash & case windows in Shamley Green, Surrey
Sand mastic across Shamley Green and nearby, with old sealant always removed completely and a 12-month guarantee.
- Silicone on a period window that looks wrong
- Crumbling sand mastic round a window
- Cracked mastic round a front door frame
Sand mastic for homes and businesses in Shamley Green
A silicone bead around a sash window can look out of place and isn’t always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on sash and case windows, timber door frames and brick reveals, and the jobs we see most are gaps round a timber door in stone or brick and crumbling sand mastic round a window.
Outdoor sealant needs dry, clean surfaces, so work on frames around Shamley Green is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
We stand behind the work with a 12-month guarantee.
- Place
- Shamley Green (GU5)
- Wider area
- Surrey
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Shamley Green homes and the weather
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Chilworth Manor (about 2.5 miles north) nearby, there’s older building stock in the area around Shamley Green as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to Christ Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Managing a site like Wonersh and Shamley Green CofE Aided Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Shamley Green is about 5 miles south-east of Guildford, in Surrey. From the centre of Shamley Green to the outskirts, sand mastic is available for homes and businesses alike. Shamley Green is one of 395 places in Surrey we cover. We also work in Crawley, around 16 miles away.
We cover every part of the GU5 postcode area for sand mastic. Whether your property is on Sweetwater Lane, Sweetwater Close and Garden Close or a nearby road, we can help. Neighbouring places we cover for sand mastic include Birtley Green (1 mile west), Stroud Common (1 mile south-east), Wonersh (1 mile north-west), Grafham (1 mile south) and Bramley (1 mile north-west). Larger places within reach include Guildford (5 miles north-west), Woking (9 miles north), Camberley (14 miles north-west), Epsom (15 miles north-east), Farnham (12 miles west) and Reigate (15 miles east).
What’s near Shamley Green
Locally, jobs take us to homes and businesses close to Red Lion Inn and Cucknell's Wood, among other places. The nearest railway station is Chilworth station, about 2.1 miles north of the centre. Other landmarks nearby include St. Luke’s Hospital (3.9 miles north) and Surrey Police Museum (3.6 miles north-west). The countryside around Shamley Green includes St Martha's Hill and Colyer's Hanger and Silent Pool.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Putty and glazing repairs
- Sashes that rattle, stick or won’t open
- Planning or listed building consent (your local planning authority decides)
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Sash and case windows
- Timber door frames
- Brick reveals
- Stone surrounds
- Period & listed homes
- Tenement windows
Shamley Green questions
Do you cover smaller places like Shamley Green?
Yes, we do. 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.
Do you cover Shamley Green for sand mastic?
Yes. Our work covers London and the South East, and Shamley Green is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear quote.
Can you replace silicone on a period window with sand mastic?
Normally, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Can tenants book the work?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
How long will you be here?
That depends on the amount of work, but most jobs take a few hours per window, depending on the condition of the joints. We’ll give you a better idea when we quote.
What is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
How the job changes by surface
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
Nearby places to Shamley Green
What else we do in Shamley Green
Keeping the joints in good condition
After the cure time, these simple habits help:
- Leave the new mastic unpainted
- Keep sills and gutters clear so water drains away
- Take care around the mastic when scraping paint
- Look over the window mastic once a year
Avoid painting over the new mastic, as traditional guidance advises. If you’re redecorating, ask us first.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
Common problems we fix in Shamley Green
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
The problems people generally mention when they call include:
- Window mastic to renew ahead of painting
- Gaps round a timber door in stone or brick
- Mastic worn away on windows facing the weather
- Modern sealant on a period surround
Letting a property close to Chilworth station? Then any sash windows need sound mastic to keep draughts and rain out.
Questions to ask before booking
- Which sealant they’ll use, and why
- How hidden problems are handled
- How the joint is cleaned and prepared
- What guarantee comes with the work
How the visit works
Before we leave, we go over the finished joints with you. The visit itself generally takes a few hours for a single window, longer for several, depending on the size of the job. Somewhere as small as Shamley Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
How to prepare
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
- Keep children and pets away from the work area
Ask for a quote
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job.
Read more
What happens if it’s left?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Older cottages and farmhouses around Shamley Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Shamley Green
- Domestic, commercial and hotel work
- Anti-fungal silicone where joints get wet
- Fully insured
- Rated 4.9 stars on Google
Read our cost guide and customer reviews.