Hampshire · England
Window & door mastic in Stubbington, Hampshire
Professional window mastic in and around Stubbington, with every bit of old sealant taken out first and a 12-month guarantee.
- Leaking joints at the ends of sills
- Old mastic that has gone black or come away
- Cold air getting in at the frame edge
How we quote for window mastic
Jobs vary more than people expect. The main factors:
- How much there is to do
- The old material and how stubborn it is
- The number of rooms or windows
- Any working-time requirements on site
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Where the property is
- A few pictures by email, if you can
- Whether it has been sealed before
- The problem you’ve noticed
Want a quote for window mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
How we handle window mastic in Stubbington
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on aluminium frames, window sills and uPVC windows, and the jobs we see most are sealant in the wrong colour for the frame and draughts coming in around windows and doors.
Homes around Stubbington range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
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
- Stubbington (PO14, PO13)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
FAQs for Stubbington
Is window mastic in a coastal place like Stubbington any different?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Is Stubbington within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can I do it myself?
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.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear.
Do you take out the old sealant first?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Can you do the inside joint as well?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
Will resealing my frames help with draughts?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
Nearby places to Stubbington
What else we do in Stubbington
When something else is needed
It helps to know what we cannot do:
- A frame that has rotted at the joint
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Broken hinges, locks or handles
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
What we seal
- Window sills
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Aluminium frames
- Composite doors
Why deal with it now?
Running fresh sealant over the old joint is tempting, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. Around Stubbington, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
What you get with us
- Rated 4.9 stars on Google
- Fully insured
- We never seal over old sealant
- A sealant colour to suit the surroundings
Take a look at our cost guide and what customers say.
Different surfaces, different methods
Patio & French doors
Heavy door frames can move more than windows. A flexible sealant copes with that, where a rigid one would crack.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Window mastic in Stubbington: local notes
Stubbington is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Crofton Anne Dale Junior School? Then its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near Holy Rood Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Letting a property close to Fareham station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Stubbington is about 2 miles south-west of Fareham, in Hampshire. Across the PO14 area, we can carry out window mastic at your property. 683 places in Hampshire are on our list, from the larger towns to small villages. You can also see our page for Portsmouth, roughly 6 miles from Stubbington.
Our applicators cover all of the PO14 and PO13 postcode area for window mastic. If you need window mastic at a property on Park Lane, Croftlands Avenue and Bells Lane or a nearby road, our applicators can take on the job. Other places close to Stubbington include Hill Head (1 mile south-west), Little Posbrook (1 mile north-west), Titchfield (2 miles north-west), Catisfield (2 miles north) and Heathfield (2 miles north). Larger places within reach include Gosport (3 miles south-east), Havant (10 miles east), Eastleigh (11 miles north-west), Horndean (11 miles north-east), Totton (14 miles north-west) and Chandler's Ford (13 miles north-west).
Local landmarks in Stubbington
In Stubbington, that means homes and buildings near The Osborne View pub, Crofton School and Stubbington House School and the streets around them. For rail, the closest station is Fareham station, roughly 2.3 miles north-east. Nearby you will also find Gosport War Memorial Hospital (3.7 miles south-east) and Carron Row Farm Museum (2.5 miles north). The countryside around Stubbington includes West of the River Alver.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Walk round the house once a year and look at the joints
- Make sure the drainage slots aren’t blocked
- Repaint timber before it’s bare
- Don’t use solvent cleaners on the joint
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
Signs to watch for: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
The process
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. The work normally takes a morning for a couple of windows and a door. Parking around Stubbington is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Keep children and pets away from the work area
- Clear the area around the work
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.