Surrey · England
Window & door mastic in Crosswater, Surrey
Our applicators work in Crosswater on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.
- Mastic that is falling out in pieces
- Hard, cracked sealant around windows
- Untidy mastic left by window fitters
When it is not the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- Condensation trapped between the panes
- Rotten timber, which needs a joiner first
- Draughts through the window seals rather than the frame
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Crosswater
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Window sills
- Composite doors
- Patio & French doors
Window mastic in Crosswater
The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. We work on timber windows & doors, composite doors and patio & French doors, and people most often call us about gaps between the frame and the inside reveal and a bead that doesn’t match the frame.
Somewhere as small as Crosswater, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Place
- Crosswater (GU10)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Towns and villages near Crosswater
Also in Crosswater
Why it’s worth doing now in Crosswater
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Around Crosswater, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
Why book with us
- Tidy, careful work
- Domestic, commercial and hotel work
- Old sealant always removed completely
- 20+ years of sealant experience
See our cost guide or customer reviews.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Common questions in Crosswater
Do you cover Crosswater for window mastic?
Yes, Crosswater is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Farnham station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Are you insured?
Yes, we’re fully insured for every job we do.
Where are you based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
How we quote for window mastic
We quote each job individually. These are the things that affect it:
- Which sealant suits the joint
- The number and length of the joints
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
When you contact us, these details help:
- Photos by email, if that’s easy
- Any previous sealing or DIY work
- What’s wrong with the joints now
- Whether it’s a home or a business
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work and give you a clear quote.
How the visit works
Good joint work is mostly preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a morning for a couple of windows and a door. In a small place like Crosswater, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
How to prepare
- Clear items away from the joints we’re working on
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before work begins.
Advice
How to look after the new joints
After the cure time, these simple habits help:
- Don’t paint over the silicone
- Make sure the drainage slots are not blocked
- Keep jet washers away from the mastic
- Walk round the house once a year and look at the joints
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just ring 0345 464 0079 or send us an email.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Window mastic in Crosswater: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Farnham Castle (about 4.9 miles north) nearby, there’s older building stock in the area around Crosswater as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
In the older streets around St John the Evangelist, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near Farnham station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. Schools such as St John's CofE Aided Infant School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Crosswater is about 4 miles south of Farnham, in Surrey. We carry out window mastic for homeowners, landlords and businesses in Crosswater, as part of our work across Surrey. We cover 395 towns and villages across Surrey, large and small. You can also see our page for Reading, about 22 miles away.
Every address in GU10 is covered for window mastic, from the main roads to the quietest streets. We also cover the places around Crosswater: Churt (1 mile south), Green Cross (1 mile south-east), Frensham (1 mile north-west), Barford (1 mile south) and Rushmoor (1 mile north-east). Larger places within reach include Guildford (11 miles north-east), Woking (15 miles north-east), Camberley (13 miles north), Farnham (4 miles north), Frimley (12 miles north) and Haslemere (5 miles south-east).
What’s near Crosswater
Locally, jobs take us to homes and businesses close to Crossways Inn and The Flashes, among other places. For rail, the closest station is Farnham station, roughly 4.3 miles north of the centre. Well-known places in the area include Farnham Castle (4.9 miles north) and Chase Community Hospital (4.7 miles south-west). For a walk, there’s Gibbet Hill and Upper Lake.