Surrey · England
Ottershaw Sand Mastic
Sand mastic for Ottershaw, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- A silicone bead on a sash window that spoils the look
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps round a timber door in stone or brick
Windows and doors in Ottershaw
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Botleys Mansion (about 0.8 miles north) nearby, there’s older building stock in the area around Ottershaw as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Chertsey station change hands often, and any sash windows need sound mastic to keep draughts and rain out. Schools such as Ottershaw Christchurch Church of England Junior School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Ottershaw is about 4 miles west of Weybridge, in Surrey. Homes, rented property, offices and hotels in Ottershaw can book us for sand mastic. Every job comes with our one-year guarantee. Our area takes in 395 places across Surrey. Reading is on our list too, about 20 miles from Ottershaw.
Every address in KT16 is covered for sand mastic. That includes homes and businesses on Ottermead Lane, Chaworth Close and Crawshaw Road. If you’re just outside Ottershaw, we cover Row Town (1 mile east), Stonehill (1 mile west), Woodham (1 mile south-east), Lyne (2 miles north) and Chertsey (2 miles north-east). Within a short drive, we also cover Guildford (8 miles south), Woking (4 miles south-west), Camberley (9 miles west), Epsom (11 miles east), Ewell (12 miles east) and Egham (5 miles north).
Near you in Ottershaw
In Ottershaw, that means homes and buildings near Jubilee High School and White Lodge Children's Centre, among other places. The nearest railway station is Chertsey station, about 1.9 miles north-east. A little further out are The Hockey Museum (3.3 miles south) and St. Peter's Hospital (1 mile north). For a walk, there’s St Ann's Lake and St Ann's Hill.
Sand mastic in Ottershaw
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. We’re often asked to deal with cement or filler used on old window joints that has cracked and open joints round the window box, across sash and case windows, stone surrounds and period & listed homes.
In smaller places like Ottershaw, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
We stand behind the work with a 12-month guarantee, so you are covered after we’ve gone.
- Where
- Ottershaw (KT16)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. In an older home around Ottershaw, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
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 will go through it with you.
Why us?
- 12-month guarantee on every job
- Arbo and Everbuild products
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
When to call us in Ottershaw
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
Any of these means the joints need attention:
- Weathered mastic on the most exposed windows
- Open joints round the window box
- A silicone bead on a sash window that spoils the look
- Cement or filler used on old window joints that has cracked
Homes close to Christ Church include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Questions to ask before booking
- The length of the guarantee
- Whether all the old sealant comes out first
- When the joint can take water or movement
- What happens if they find a problem under the old sealant
What affects the quote in Ottershaw
We quote each job individually. This is what makes a difference:
- The number and length of the joints
- The type of sealant required
- Mould in or behind the old joints
- Access and height
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What we need to know
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
- If someone has resealed it before
- What the problem is, such as mould, gaps, leaks or cracking
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
What happens on the day
At the end, we look at the finished work together. The visit itself normally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. A visit to Ottershaw is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- 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.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Read more
Should I try it myself first?
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 fails, we can still redo it.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
When something else is needed
A few problems are outside what sealant work can do:
- Decayed frames that need repair
- Damaged stone surrounds
- Whether work needs listed building consent
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Where we work in Ottershaw
- Period & listed homes
- Sash and case windows
- Tenement windows
- Timber door frames
- Stone surrounds
- Brick reveals
Landlord and commercial work in Ottershaw
We work for landlords and agents as well as householders. Sealant work between tenants keeps a property looking cared for.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
More services for Ottershaw
Questions from Ottershaw
Do you cover smaller places like Ottershaw?
Yes, smaller places are covered as well as towns. We work across 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 Chertsey station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
What does sand mastic cost?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Where are you based?
We’re based in Crawley, and we work across South East England, London and Scotland.