Hampshire · England
Window & door mastic in Fair Oak, Hampshire
Our applicators work in Fair Oak on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Rain getting in at the frame or under the sill
- Black, perished sealant on frames
- Draughty joints inside around the window
FAQs for Fair Oak
Will you come out to Fair Oak?
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 do window mastic in Fair Oak?
Yes, Fair Oak is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
What do you need from me for a quote?
Tell us what needs doing and where, with photos by email if possible. We’ll ask anything else we need to know.
Can you seal over the old sealant?
No. The old sealant always comes out first.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
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.
Window mastic for homes and businesses in Fair Oak
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We’re often asked to deal with rushed sealant from a window installation and whistling draughts around closed windows, across composite doors, patio & French doors and window sills.
Houses in smaller places like Fair Oak can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.

- Place
- Fair Oak (SO50)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Fair Oak
What else we do in Fair Oak
Signs you need window mastic in Fair Oak
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
Signs it’s time to call us include:
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
- Mastic that has split away from the wall
- Gaps between the frame and the inside reveal
Letting a property close to Hedge End station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- Which colour the sealant will be
- Who does the work, and how experienced they are
- Whether all the old sealant comes out first
- How long the guarantee is
Honest limits
We will always be straight with you, so here’s what sealant cannot fix:
- Faulty window hardware
- Worn gaskets, brush seals or a door that has dropped
- Damp coming through the wall itself rather than the frame joint
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before you book.
What we seal
- Patio & French doors
- Composite doors
- Window sills
- Aluminium frames
- uPVC windows
- Timber windows & doors
Landlord and commercial work in Fair Oak
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes most of a day for a typical house, less for a few frames. A visit to Fair Oak 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.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Tell us about any water getting in
- Mention any parking rules near the property
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, and we’ll come back to you with a quote.
Read more
Window mastic in Fair Oak: local notes
With historic houses such as South Stoneham House (about 3.9 miles south-west) nearby, there’s older building stock in the area around Fair Oak as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Fair Oak Junior School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near Saint Thomas, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Fair Oak is about 2 miles east of Eastleigh, in Hampshire. Fair Oak gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Hampshire, we cover 683 places, and Fair Oak is one of them.
Work in SO50 works the same way as everywhere else we cover. You’ll find streets such as Dean Road, Witt Road and Sandy Lane, and we cover them all. We also cover Horton Heath (1 mile south), Wintershill (2 miles east), Durley (2 miles south-east), Lower Upham (2 miles east) and Durley Street (2 miles east). Larger places within reach include Winchester (7 miles north), Gosport (13 miles south-east), Havant (15 miles south-east), Fareham (9 miles south-east), Horndean (13 miles east) and Totton (10 miles west).
Local landmarks in Fair Oak
Around Fair Oak, our work takes us to homes and buildings near The Old George Public House, Wyvern Technology College and Wyvern Technology College and the streets around them. The closest station to Fair Oak is Hedge End station, roughly 2.2 miles south of the centre. Well-known places in the area include Moorgreen Hospital (2.7 miles south-west) and Eastleigh Museum (2.5 miles west). For a walk, there’s Bishops Waltham Branch LNR.
Different surfaces, different methods
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We will tell you which suits your home.
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
Why it’s worth doing now in Fair Oak
The work is quick compared with the damage it prevents: it takes most of a day for a typical house, less for a few frames. Wait for damp to appear and there may be plaster and decorating to sort out too. In a smaller place like Fair Oak, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first.
Why Fair Oak customers choose us
- We never seal over old sealant
- Quality sealants from Arbo and Everbuild
- Homes, businesses and hotels
- Colour picked to suit the job
See our cost guide or what customers say.
Quotes for window mastic in Fair Oak
We quote each job individually. These are the things that affect it:
- How many rooms, windows or areas are involved
- The size of the job
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
Rather than a set price list, 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.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The rough size of the job
- Where the property is
- Photos by email, if that is easy
- Whether it has been sealed before
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, phone 0345 464 0079 or email us.
