Hampshire · England
Window & door mastic in Ashley, Hampshire
Mastic around window and door frames, sills and patio doors for homes and businesses in Ashley and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Black, perished sealant on frames
- Draughts coming in around windows and doors
- Hard, cracked sealant around windows
Window mastic for homes and businesses in Ashley
There are two joints on most windows. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. We are often asked to deal with mastic that has split away from the wall and untidy mastic left by window fitters, on timber windows & doors, composite doors and uPVC windows.
Around Ashley, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months.
- Location
- Ashley (SO20)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
We will not take on work that will not last, so here’s what sealant cannot put right:
- Rotten timber, which needs a joiner first
- Damp problems in the wall away from the window
- Draughts through the window seals rather than the frame
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Surfaces we seal
- Timber windows & doors
- Patio & French doors
- Aluminium frames
- Composite doors
- uPVC windows
- Window sills
Why act early in Ashley
Choosing the product is half the job. Interior caulk and bathroom silicone are not made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. Around Ashley, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Why book with us
- We’re fully insured
- 4.9 on Google from 180+ five-star reviews
- Quality sealants from Arbo and Everbuild
- More than 20 years in sealant work
Read our cost guide or what customers say.
How the visit works
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes most of a day for a typical house, less for a few frames, depending on the amount of work. Somewhere like Ashley needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
Ask for a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
Related advice
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Avoid blasting the frames with a pressure washer
- Use gentle cleaners on frames and sealant
- Don’t use solvent cleaners on the joint
- Wipe condensation off the frames
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Leaks normally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Quotes for window mastic in Ashley
Call for a quick quote. The main things that affect it are:
- How easy the joints are to reach
- Which sealant suits the joint
- Any mould that needs treating
- The old material and how stubborn it is
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
You don’t need to know the technical terms. Just tell us:
- Photos by email, if that’s easy
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Frames and glazing around Ashley
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. Historic houses like Mottisfont Abbey (about 4.3 miles south-west) are a reminder that the area around Ashley has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Homes close to St Mary's Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Ashley is about 6 miles north of Romsey, in Hampshire. Every kind of property in Ashley can book us for window mastic. The work is guaranteed for a year. Ashley is one of 683 places in Hampshire we cover for window mastic. You can also see our page for Southampton, roughly 11 miles from Ashley.
Postcode districts we cover here for window mastic: SO20. We also cover the places around Ashley: Little Somborne (1 mile north), Up Somborne (1 mile north-east), King's Somborne (1 mile west), Lower Slackstead (3 miles south) and Braishfield (4 miles south). Within a short drive, we also cover Winchester (6 miles east), Eastleigh (9 miles south-east), Andover (9 miles north), Totton (11 miles south), Chandler's Ford (7 miles south-east) and Hedge End (13 miles south-east).
Near you in Ashley
Ashley’s nearest station is Mottisfont & Dunbridge station, about 5 miles south-west of the centre. Nearby you will also find Royal Hampshire County Hospital (5.4 miles east).
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
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. All the old material has to come out first.
Common questions in Ashley
Do you cover Ashley for window mastic?
Yes, Ashley is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.
Do you cover smaller places like Ashley?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Will the old sealant be removed?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
Do you work for letting agents?
Yes. We work for householders, landlords, letting agents, businesses and hotels.
Where are you based?
We work from Crawley. We cover Ashley and the rest of Hampshire.
Do you work on first-floor windows?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we will confirm what’s needed.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Common problems we fix in Ashley
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
These are the problems we’re asked about most:
- Rushed sealant from a window installation
- Draughty joints inside around the window
- Gaps where the sill meets the wall
- Black, perished sealant on frames
Letting a property close to Mottisfont & Dunbridge station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Before you book anyone
- How much experience the applicator has
- How long the guarantee is
- Are they insured?
- What happens if the job turns out different