Surrey · England
Window Mastic in Flexford
Window mastic for Flexford and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Hard, cracked sealant around windows
- Rain getting in at the frame or under the sill
- Leaking joints at the ends of sills
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from an hour or two to a full day, depending on how many frames there are and we leave things clean and tidy. In a small place like Flexford, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- 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.
- Every joint is checked before we leave.
Before we arrive
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we are working on
How to get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.
Advice
Window mastic for homes and businesses in Flexford
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. Common call-outs are for cracked or shrunken mastic around the frame and gaps left after new windows were fitted, on timber windows & doors, window sills and aluminium frames.
Somewhere as small as Flexford, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Big or small, it’s backed by our 12-month guarantee in Flexford and across Surrey.
- Location
- Flexford (GU3)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
Good habits help new joints last longer. A few tips:
- Keep drainage slots and sill grooves clear
- Repaint timber before it’s bare
- Wipe condensation off the frames
- Avoid blasting the frames with a pressure washer
Keep the new mastic undisturbed while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Work for landlords, hotels and businesses
Letting agents and landlords in Flexford can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Surface by surface
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Window mastic in Flexford: local notes
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. Historic houses like Wanborough Manor (about 0.8 miles south-east) are a reminder that the area around Flexford 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 is traditional sand mastic.
If you let a flat or house near Wanborough station, renewing tired window mastic between tenants heads off draught and damp complaints. In the older streets around Church of St Bartholomew, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Flexford is about 4 miles east of Aldershot, in Surrey. For window mastic in and around Flexford, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Surrey. 395 places in Surrey are on our list. We also work in Reading, around 19 miles away.
Postcode districts we cover here for window mastic: GU3. That includes homes and businesses on Christmaspie Avenue, Orchard Close and Cull's Road and the roads around them. If you’re just outside Flexford, we cover Christmas Pie (1 mile south), Wanborough (1 mile south-east), Normandy (1 mile north), Willey Green (1 mile north-east) and Wyke (1 mile north-west). Within a short drive, we also cover Guildford (4 miles east), Woking (7 miles north-east), Camberley (7 miles north), Farnham (6 miles south-west), Egham (14 miles north-east) and Walton-on-Thames (15 miles north-east).
Around Flexford
Around Flexford, our work takes us to homes and buildings near Ash Manor School. Flexford has its own railway station: Wanborough station. Nearby you will also find Guildford Hospital (2.6 miles east) and Guildford Castle (4.3 miles east). Open spaces near Flexford include Ash Ranges and Hog's Back.
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full 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 does not move well, and the joint depth matters as much as the finish.
What sealant work cannot fix
To be straight with you, some problems need a different trade:
- Penetrating damp from a failed cavity tray or render
- A frame that has rotted at the joint
- A failed sealed unit that has misted up
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Timber windows & doors
- Window sills
- Composite doors
- uPVC windows
- Patio & French doors
- Aluminium frames
Flexford: your questions answered
Will you come out to Flexford?
Yes, smaller places are covered as well as towns. 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, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Will resealing my frames help with draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we’ll say so.
Can you reach windows above the ground floor?
Yes, in most cases. We plan safe access before the job, so mention the height and anything in the way.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Also near Flexford
Other services in Flexford
Signs you need window mastic in Flexford
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. A sealant that cannot keep up eventually tears.
Common reasons people contact us include:
- Cold air getting in at the frame edge
- Rain getting in at the frame or under the sill
- Cracked or shrunken mastic around the frame
- A bead that does not match the frame
Schools such as Wyke Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- Who turns up on the day
- What the quote includes, VAT included or not
- How long to leave it before use
- Which sealant they’ll use, and why