Surrey · England
Sand mastic for sash & case windows in Little London, Surrey
Window and door surrounds in Little London need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Mastic dropping out of the joint
- Old cement repairs round a window that have failed
- Tired mastic found when preparing windows for paint
Sand mastic in Little London
Across Little London, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. If you are dealing with cement or filler used on old window joints that has cracked and open joints round the window box, we can help.
Somewhere as small as Little London, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Place
- Little London (GU5)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. The job generally takes a few hours per window, depending on the condition of the joints. In a small place like Little London, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- On commercial sites, let us know about site rules
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved.
Related advice
Signs you need sand mastic in Little London
Water gets into small cracks in the mastic and pushes it out. Exposed elevations generally fail first.
The most common problems we see are:
- Cement or filler used on old window joints that has cracked
- Gaps where the frame meets the masonry
- Mastic that needs renewing before redecorating
- Weathered mastic on the most exposed windows
Letting a property close to Gomshall station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Comparing quotes
- When the joint can take water or movement
- The length of the guarantee
- How much experience the applicator has
- Whether they seal over old material or remove it
Why act early in Little London
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in and new mastic seals them. Where a wall is exposed, as many are in small places like Little London, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Little London
- We are fully insured
- Quality sealants from Arbo and Everbuild
- Every job guaranteed for a year
- Over 20 years’ experience
Take a look at how sealant jobs are priced or our reviews.
Also near Little London
Also in Little London
FAQs for Little London
Do you cover smaller places like Little London?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you cover Little London for sand mastic?
Yes. We work across London and the South East, and Little London is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They decide whether consent is needed for work to your windows.
Is it possible to take out silicone and use sand mastic instead?
Yes. We remove the silicone and clean the joint before the sand mastic goes in.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Where is Mr Mastic based?
We are based in Crawley, and we work across South East England, London and Scotland.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and shaped to suit the surround.
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Decayed frames that need repair
- Decisions on consent for listed homes
- Sash cords, weights and draught-proofing of the sashes
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Sash and case windows
- Tenement windows
- Stone surrounds
- Period & listed homes
- Timber door frames
- Brick reveals
Surface by surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Like-for-like sand mastic is generally favoured.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Quotes for sand mastic in Little London
You will get a clear quote before work begins. It’s based on:
- Any mould that needs treating
- Which sealant suits the joint
- How many rooms, windows or areas are involved
- Working hours on commercial sites
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
You don’t need to know the technical terms. Just tell us:
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
- If someone has resealed it before
- Roughly how big the job is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, phone 0345 464 0079 or drop us an email.
Little London homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Chilworth Manor (about 2.5 miles west) nearby, there’s older building stock in the area around Little London as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
For an older house near a landmark such as Old St Peter and St Paul's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Shere CofE Aided Infant School, larger buildings have plenty of frames, and the mastic around each one ages.
Little London is about 5 miles south-east of Guildford, in Surrey. Homes, rented property, offices and hotels in Little London is covered for sand mastic. The work is guaranteed for a year. Little London is one of 395 places in Surrey where we work. There’s also a page for Crawley, about 14 miles away.
Work in GU5 is quoted and booked the same way as anywhere else. If you’re just outside Little London, we cover Albury Heath (1 mile north-west), Shere (1 mile north-east), Albury (1 mile north-west), Gomshall (1 mile north-east) and Hoe (2 miles east). We also work in nearby towns such as Guildford (5 miles north-west), Woking (9 miles north-west), Camberley (14 miles north-west), Epsom (13 miles north-east), Horley (13 miles east) and Redhill (13 miles east).
Near you in Little London
Around Little London, our work takes us to homes and buildings near Colekitchen Down and King William IV Public House and the streets around them. Little London’s nearest station is Gomshall station, roughly 1.6 miles north-east of the centre. A little further out are Shere Museum (1 mile north-east) and St. Luke’s Hospital (4.1 miles north-west). The countryside around Little London includes Silent Pool and St Martha's Hill.