Surrey · England
Wanborough Window Mastic
Mastic around window and door frames, sills and patio doors for Wanborough, backed by a 12-month guarantee. Call for a quick quote.
- Gaps between the frame and the inside reveal
- Rushed sealant from a window installation
- Hard, cracked sealant around windows
Window mastic for homes and businesses in Wanborough
The new joint doesn’t have to be white. We can seal in white, brown, anthracite grey, black or clear, so the line suits the frame instead of standing out. Typical jobs include cracked internal joints between frame and plaster and old mastic that has gone black or come away, on aluminium frames, uPVC windows and composite doors.
Homes in small places like Wanborough often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Wanborough (GU3)
- Region
- Surrey
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Wanborough
Running fresh sealant over the old joint is tempting, but new sealant can’t bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Where a wall is exposed, as many are in small places like Wanborough, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
- 12-month guarantee on every job
Read our cost guide and customer reviews.
Towns and villages near Wanborough
Other services in Wanborough
How the job changes by surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. If we find rot, we’ll tell you before going ahead, as that is a job for a joiner.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Use gentle cleaners on frames and sealant
- Air rooms to keep condensation down around windows
- Check the mastic once a year
- Keep solvents and bleach off the sealant
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
What we’re called out for in Wanborough
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
It’s worth asking for a quote if you see:
- Mastic that has split away from the wall
- Leaking joints at the ends of sills
- Rain getting in at the frame or under the sill
- Untidy mastic left by window fitters
Schools such as Puttenham CofE Infant School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- What happens if the job turns out different
- Who does the work, and how experienced they are
- Is VAT in the price?
- How the colour is chosen
When it is not the sealant
We will always be straight with you, so here’s what new sealant will not do:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Composite doors
- Window sills
- Aluminium frames
What happens on the day
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 morning for a couple of windows and a door. Somewhere as small as Wanborough, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Keep pets and children clear of the area while we work
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
Ask for 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 add pictures by email if you can.
Advice
Quotes for window mastic in Wanborough
You’ll get a clear quote before any work starts. It takes into account:
- Whether there’s mould to deal with
- The number and length of the joints
- How many rooms, windows or areas are involved
- Any working-time requirements on site
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Helping us quote
When you contact us, these details help:
- Photos by email, if that is easy
- Roughly how big the job is
- Access, such as stairs, a lift or height
- Where the property is
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details and send photos if you have them.
Wanborough questions
Do you cover smaller places like Wanborough?
Yes. Wanborough is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Wanborough station?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can you match the sealant to my frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Where are you based?
We work from Crawley. Our applicators cover Wanborough.
Is the work guaranteed?
Yes. Every job comes with our 12-month guarantee, and we are fully insured.
Are you fully insured?
Yes. We are fully insured, and we can confirm the details when we quote.
How long before the joint can be used?
That depends on the sealant used, so follow the cure time we give you.
What window mastic looks like in Wanborough
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. Historic houses like Wanborough Manor (about 0.1 miles east) are a reminder that the area around Wanborough has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you live in an older home near Church of St Bartholomew, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Wanborough station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Wanborough is about 4 miles west of Guildford, in Surrey. Every kind of property in Wanborough can book us for window mastic, old or new, large or small. The work is guaranteed for a year. Wanborough is one of 395 towns and villages in Surrey where we work for window mastic. Reading is on our list too, about 20 miles from Wanborough.
Here we cover the GU3 postcode area for window mastic. Nearby, we also carry out window mastic in Christmas Pie (1 mile north-west), Flexford (1 mile north-west), Puttenham (1 mile south-west), Normandy (2 miles north) and Willey Green (2 miles north). We also work in nearby towns such as Guildford (4 miles east), Woking (7 miles north-east), Camberley (8 miles north), Farnham (6 miles west), Egham (15 miles north) and Walton-on-Thames (15 miles north-east).
Landmarks near Wanborough
Around Wanborough, our work takes us to homes and buildings near Pucks Oak Barn and McAlmont Reserves and The Good Intent pub, among other places. Wanborough’s nearest station is Wanborough station, about 0.9 miles north of the centre. Well-known places in the area include Guildford Castle (4 miles east) and Guildford Hospital (2.4 miles east). Open spaces near Wanborough include Ash Ranges and Lower Lake.