Surrey · England
Cudworth Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Cudworth and across Surrey. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked mastic round a front door frame
- Failed mastic on an exposed elevation
- Mastic that needs renewing before redecorating
Sand mastic in Cudworth, 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. Common call-outs are for mastic that needs renewing before redecorating and wind and rain getting in round a sash window, on period & listed homes, tenement windows and stone surrounds.
In a village or hamlet like Cudworth, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
You get a one-year guarantee, the same in Cudworth as everywhere else we work.
- Where
- Cudworth (RH5)
- Wider area
- Surrey
- Cover
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What affects the cost of sand mastic
The price is agreed before any work begins. It takes into account:
- The amount of work
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
What we need to know
Photos help, but a description is a good start. Please mention:
- Pictures of the joints, sent by email
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- The rough size of the job
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
How the visit works
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours per window, depending on the condition of the joints. In a small place like Cudworth, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know about stairs, lifts or work at height
- Tell us about any previous sealing or DIY attempts
Get a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or email us.
Read more
Common questions in Cudworth
Will you come out to Cudworth?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Cudworth in your area for sand mastic?
Yes. We work across London and the South East, and Cudworth is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Can you replace silicone on a period window with sand mastic?
Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.
What exactly is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.
What sealant do you use?
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 do commercial work?
Yes. Hotels, offices and other businesses use us.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Different surfaces, different methods
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Towns and villages near Cudworth
What else we do in Cudworth
What we cannot put right
Sealant isn’t the answer to every problem, and we’ll tell you before work begins. Sealant won’t put right:
- Damaged stone surrounds
- Whether work needs listed building consent
- Decayed frames that need repair
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Surfaces we seal
- Tenement windows
- Stone surrounds
- Brick reveals
- Period & listed homes
- Timber door frames
- Sash and case windows
Frames and glazing around Cudworth
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Peter include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Holmwood station change hands often, and any sash windows need sound mastic to keep draughts and rain out. Managing a site like Newdigate CofE Endowed Aided Infant School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Cudworth is about 4 miles west of Horley, in Surrey. Anywhere in RH5, our applicators can take on sand mastic. Our Surrey coverage runs to 395 places, Cudworth among them.
Here we cover the RH5 postcode area for sand mastic. Sand mastic is available to properties on Cudworth Park, The Poplars and Burnt Oak Lane and the roads around them. Other places close to Cudworth include Newdigate (1 mile west), Russ Hill (1 mile south-east), Parkgate (2 miles north), Charlwood (2 miles east) and Norwood Hill (2 miles north-east). Further out, we also cover Guildford (15 miles north-west), Epsom (12 miles north), Horley (4 miles east), Redhill (7 miles north-east), Ewell (13 miles north) and Reigate (6 miles north-east).
Around Cudworth
Around Cudworth, our work takes us to homes and buildings near Newdigate Brickworks and the streets around them. For rail, the closest station is Holmwood station, roughly 2.8 miles north-west of the centre. Other landmarks nearby include Langley Green Hospital (3.8 miles south-east). Not far away are Vann Lake and Leith Hill.
How to look after the new joints
Looking after new joints is easy:
- Plan mastic work ahead of painting
- Clear gutters so water does not pour onto the windows
- Check with your local planning authority if your home is listed
- Leave the new mastic unpainted
Do not touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
Why deal with it now?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. In a small place like Cudworth, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Why us?
- ARBOMaster approved applicator
- Neat joints and a tidy finish
- Domestic, commercial and hotel work
- We’re fully insured
Read our cost guide and customer reviews.