Hampshire · England
Window & door mastic in Stonehills, Hampshire
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Stonehills. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Black, perished sealant on frames
- Leaking joints at the ends of sills
- Hard, cracked sealant around windows
The process
At the end, we look at the finished work together and tell you how long to leave it. The visit itself usually takes most of a day for a typical house, less for a few frames, depending on how much there is to do. Somewhere as small as Stonehills, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Clear the area around the work
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
Get a quote
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details, and pictures are welcome.
Related advice
Window mastic for homes and businesses in Stonehills
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. If the draught is through the window seals instead, we’ll tell you. We work on patio & French doors, window sills and timber windows & doors, and common reasons people get in touch are gaps where the sill meets the wall and black, perished sealant on frames.
In a village or hamlet like Stonehills, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.
- Location
- Stonehills (SO45)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. Neutral-cure sealant is the safe choice.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
Do you need window mastic in Stonehills?
Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, while a joint packed solid can’t stretch. Backing rod sets the right depth.
People generally contact us after spotting one of these:
- Hard, cracked sealant around windows
- Damp patches on the reveal after heavy rain
- Cold air getting in at the frame edge
- Old mastic that has gone black or come away
For landlords with property near Hamble station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Comparing quotes
- Whether all the old sealant comes out first
- Whether you can choose the colour
- Are they insured?
- What happens if the job turns out different
What affects the cost of window mastic
For a quick quote, just ask. What matters most is:
- When we can work, for business premises
- The product the joint needs
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- If it’s domestic, commercial or a hotel
- The rough size of the job
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Stonehills: your questions answered
Does the coastal weather in Stonehills affect outside sealant?
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.
Can you help a landlord with a rental near Hamble station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Are you fully insured?
Yes. We’re fully insured.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
How much does window mastic cost in Stonehills?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before any work starts.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
When something else is needed
A few problems are outside what sealant work can do:
- Worn gaskets, brush seals or a door that has dropped
- Broken hinges, locks or handles
- A failed sealed unit that has misted up
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Timber windows & doors
- Aluminium frames
- Composite doors
- Patio & French doors
- Window sills
- uPVC windows
Places near Stonehills
Also in Stonehills
Stonehills homes and the weather
Stonehills is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Fawley Infant School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Stonehills is about 4 miles south-east of Hythe, in Hampshire. For window mastic in and around Stonehills, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover Hampshire from our Crawley base, Stonehills included. Stonehills is one of 683 towns and villages in Hampshire where we work for window mastic. We also work in Southampton, about 7 miles from Stonehills.
Postcode districts we cover here for window mastic: SO45. Local streets include Stonehills and Fawley Bypass. Other places close to Stonehills include Ashlett (1 mile north-east), Fawley (1 mile north-west), Sprat's Down (1 mile south), Calshot (1 mile south-east) and Blackfield (1 mile south-west). Further out, we also cover Gosport (8 miles east), Eastleigh (10 miles north), Fareham (7 miles east), Totton (10 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north).
Local landmarks in Stonehills
Typical jobs here are in homes near Falcon Hotel and The New Forest Academy, among other places. The closest station to Stonehills is Hamble station, roughly 3.3 miles north of the centre. A little further out are Calshot Castle (1.6 miles east) and Coldeast (4.1 miles north-east). Green spaces nearby include Mercury Marshes.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
How to look after the new joints
So the new joints stay in good condition:
- Keep drainage slots and sill grooves clear
- Clean frames with a soft cloth and soapy water
- Don’t aim a pressure washer at the joints
- Keep solvents and bleach off the sealant
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just phone 0345 464 0079 or send us an email.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.