Surrey · England
Ockham Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Ockham and across Surrey. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Cracked mastic round a front door frame
- Patchy fillers round a sash window
- Open joints round the window box
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Have rotten timber repaired before new mastic goes in
- Plan mastic work ahead of painting
- Make sure water runs off the sill
- Look over the window mastic once a year
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Sand mastic in Ockham
On many period windows, sand mastic looks right and suits the building. Newer frames normally get a flexible sealant instead, and we’ll talk through which suits your home. If you have crumbling sand mastic round a window and mastic that needs renewing before redecorating, we can help.
In a village or hamlet like Ockham, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
Each job carries a 12-month guarantee.
- Location
- Ockham (GU23)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Ockham
What else we do in Ockham
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere like Ockham needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
Ask for a quote
Every job is quoted individually. Just call 0345 464 0079 or send us an email with the details, and pictures are welcome.
Advice
Surface by surface
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
What sealant work cannot fix
We’d rather tell you now than do work that will not last, so these are the limits:
- Planning or listed building consent (your local planning authority decides)
- Sashes that rattle, stick or won’t open
- Broken panes
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Stone surrounds
- Tenement windows
- Timber door frames
- Brick reveals
- Sash and case windows
- Period & listed homes
Landlords, agents and businesses in Ockham
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Landlords and agents in Ockham can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Why deal with it now?
Draughts round a sash window aren’t always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them. Where a wall is exposed, as many are in small places like Ockham, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we’ll explain what it covers.
Why us?
- We never seal over old sealant
- Over 20 years’ experience
- Quality sealants from Arbo and Everbuild
- ARBOMaster approved applicator
Take a look at what affects the cost and our reviews.
Your questions about sand mastic in Ockham
Do you cover smaller places like Ockham?
Yes. Ockham is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Horsley station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Is the work guaranteed?
All our work has a 12-month guarantee, and we’re fully insured.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or email us.
Is sand mastic better than silicone for my windows?
We will talk it through with you. Period homes often look best with sand mastic and newer frames suit modern sealant.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us and we’re fully insured.
Ockham homes and the weather
Historic houses like Byfleet Manor (about 2.3 miles north) are a reminder that the area around Ockham has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
For an older house near a landmark such as All Saints' Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near Horsley station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Schools such as Ripley Court School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Ockham is about 5 miles east of Woking, in Surrey. If you need sand mastic in Ockham, please phone 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Surrey, Ockham included. 395 places in Surrey are on our list, large and small. You can also see our page for Crawley, roughly 17 miles from Ockham.
Our applicators cover all of the GU23 postcode area for sand mastic and the streets around it. Sand mastic is available to properties on Alms Heath, Ockham Lane and School Lane. We also cover West Horsley (2 miles south), Ripley (2 miles west), East Horsley (2 miles south-east), Effingham (3 miles south-east) and East Clandon (3 miles south). We also work in nearby towns such as Guildford (6 miles south-west), Woking (5 miles west), Camberley (12 miles west), Epsom (9 miles east), Horley (15 miles south-east) and Redhill (13 miles east).
Landmarks near Ockham
Typical jobs here are in homes near The Forest and the Highlands and The Black Swan pub, among other places. For rail, the closest station is Horsley station, about 1.7 miles south-east of the centre. Well-known places in the area include Send and Ripley History Society Museum (1.5 miles west) and Woking Community Hospital (4.4 miles west). Open spaces near Ockham include Boldermere Lake and Papercourt Marshes.