Hampshire · England
Window & door mastic in Crofton, Hampshire
Mastic around window and door frames, sills and patio doors in Crofton, with a 12-month guarantee on every job. Call for a quick quote.
- Cracked internal joints between frame and plaster
- A bead that doesn’t match the frame
- Cracked or shrunken mastic around the frame
About our window mastic in Crofton
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. Where the air is getting in through the window itself, we will say so. Typical jobs include whistling draughts around closed windows and old mastic that has gone black or come away, on uPVC windows, composite doors and aluminium frames.
Outdoor sealant needs dry, clean surfaces, so work on frames around Crofton is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Big or small, it’s backed by our one-year guarantee.
- Where
- Crofton (PO14, PO13)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
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. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
Questions from Crofton
Do you work for landlords with property near Fareham station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Does the coastal weather in Crofton affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are normally the first to need attention.
Do you take out the old sealant first?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages to suit the site.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do you need window mastic in Crofton?
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. Failed sealant there lets rain into the wall or behind the frame.
Any of these means the joints need attention:
- Draughty joints inside around the window
- Cracked sealant at the sill ends
- Rain getting in at the frame or under the sill
- Untidy mastic left by window fitters
Homes close to Peel Common Mission Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Comparing quotes
- Whether the sealant suits the joint
- What guarantee comes with the work
- Is VAT in the price?
- How the colour is chosen
Windows and doors in Crofton
Crofton is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Fareham station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For site and facilities teams at buildings such as Crofton School, larger buildings have plenty of frames, and the mastic around each one ages.
Crofton is about 1 mile east of Stubbington, in Hampshire. For window mastic in and around Crofton, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We’re based in Crawley and cover Hampshire. Our Hampshire coverage runs to 683 places, and Crofton is one of them.
Work in PO14 and PO13 is quoted and booked the same way as anywhere else. We cover properties on Mark's Road, Gosport Road and Newgate Lane. Neighbouring places we cover for window mastic include Peel Common (1 mile east), Rowner (1 mile east), Bridgemary (1 mile east), Lee-on-the-Solent (1 mile south) and Fareham (2 miles north). Further out, we also cover Havant (10 miles east), Eastleigh (12 miles north-west), Horndean (10 miles north-east), Totton (15 miles north-west), Chandler's Ford (14 miles north-west) and Hedge End (8 miles north-west).
What’s near Crofton
We work in homes and buildings around Baycroft School and Peel Common Infant School and Nursery Unit, among other places. The closest station to Crofton is Fareham station, roughly 2.1 miles north. Other landmarks nearby include Gosport War Memorial Hospital (3 miles south-east) and Carron Row Farm Museum (3 miles north-west). The countryside around Crofton includes Portsdown Hill and West of the River Alver.
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Use gentle cleaners on frames and sealant
- Keep jet washers away from the mastic
- Repaint timber before it’s bare
- Clear any debris from frame drain holes
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Why act early in Crofton
The work is quick compared with the damage it prevents: it takes a few hours for a few frames, or a day or more for a whole house. Leave it until water is coming in and you may need plastering and decorating as well. Older cottages and farmhouses around Crofton can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why us?
- Experience in homes, commercial sites and hotels
- Colour agreed with you before work begins
- A sealant colour to suit the surroundings
- ARBOMaster approved applicator
Read our cost guide and our reviews.
Nearby places to Crofton
What else we do in Crofton
The process
You don’t need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the work takes a few hours for a few frames, or a day or more for a whole house for a typical job. Somewhere as small as Crofton, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
How to prepare
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
Ask for a quote
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Advice
Can I do it myself?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What affects the quote in Crofton
Call for a quick quote. What matters most is:
- The size of the job
- Mould in or behind the old joints
- The old material and how stubborn it is
- When we can work, for business premises
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or email us.
What to tell us for a quote
What to tell us when you ask for a quote:
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- The problem you’ve noticed
- Whether it has been sealed before
For window mastic in Crofton, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.