Southampton · England
Window & door mastic in Coxford, Southampton
Mastic around window and door frames, sills and patio doors for homes and businesses in Coxford and across Southampton. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps left after new windows were fitted
- White mastic on grey or black frames
- Gaps where the sill meets the wall
Window mastic in Coxford, done properly
Colour matters on a frame. We can seal in white, brown, anthracite grey, black or clear, so the line suits the frame instead of standing out. If you’re dealing with draughts coming in around windows and doors and sealant in the wrong colour for the frame, we can help, whatever the surface.
Many houses in smaller places like Coxford have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Location
- Coxford (SO16, SO15)
- Wider area
- Southampton
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. Each is cleaned, backed where deep and resealed.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We’ll point out any rot we find, as a joiner will need to deal with it.
Frames and glazing around Coxford
Coxford is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around window and door frames, especially on the side facing the sea. 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.
If you let a flat or house near Redbridge station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. In the older streets around St Jude's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Coxford is about 2 miles north-west of Southampton, in Southampton. If you need window mastic in Coxford, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We cover Southampton from our Crawley base. We cover 40 towns and villages across Southampton, from the larger towns to small villages.
All of SO16 and SO15 is covered for window mastic. Local streets include Link Road, Palm Road and Vine Road. We also cover Maybush (1 mile south-west), Lordswood (1 mile north-east), Shirley (1 mile south-east), Regents Park (1 mile south) and Hillyfields (1 mile west). Larger places within reach include Townhill Park (4 miles east), Midanbury (3 miles east), Thornhill (5 miles east), Chartwell Green (4 miles east), Harefield (4 miles east) and Itchen (4 miles south-east).
Local landmarks in Coxford
Around Coxford, our work takes us to homes and buildings near Bridge Tavern, St James' Park and Millbrook Community School, among other places. The nearest railway station is Redbridge station, roughly 1.6 miles south-west of the centre. Other landmarks nearby include Princess Anne Hospital (within half a mile east) and Foresters Museum & Archive (2 miles south-east). Not far away are Testwood Lakes.
Landlord and commercial work in Coxford
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Why act early in Coxford
If you’re painting or rendering, reseal at the same time. Fresh joints finish the job neatly. Around Coxford, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What you get with us
- We agree the colour with you first
- Domestic, commercial and hotel work
- A choice of colours where the product allows
- More than 20 years in sealant work
Take a look at how sealant jobs are priced and our reviews.
Coxford: your questions answered
Do you work for landlords with property near Redbridge station?
Yes. We work for landlords and letting agents as well as homeowners. You can call 0345 464 0079 or email us with the details for a clear quote.
Is Coxford within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee, and we’re fully insured.
Can new window sealant be painted?
It depends on the sealant. Silicone isn’t paintable, but some hybrid sealants are. Mention any painting plans before work begins.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for a few frames, or a day or more for a whole house, depending on the size of the job. Parking around Coxford is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- 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.
Before we arrive
- Let us know about stairs, lifts or work at height
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
How to get a quote
Need a quote? Please phone 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and give you a clear quote before work begins.
Advice
Places near Coxford
What else we do in Coxford
When to call us in Coxford
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
People normally contact us after spotting one of these:
- Whistling draughts around closed windows
- Mastic that’s falling out in pieces
- Draughty joints inside around the window
- Rushed sealant from a window installation
Schools such as Shirley Warren Primary & Nursery School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- Who does the work, and how experienced they are
- Whether VAT is included
- How long to leave it before use
- How the colour is chosen
What affects the cost of window mastic
There’s no set price list, because no two jobs are the same. What we look at:
- Whether old sealant or filler has to be cut out
- The type of sealant required
- How easy the joints are to reach
- The number and length of the joints
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Where the job is, and your postcode
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
If you are in Coxford and need window mastic, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before we start.