Hampshire · England
Window Mastic in Mottisfont
Mastic around window and door frames, sills and patio doors for Mottisfont, backed by a 12-month guarantee. Call for a quick quote.
- Black, perished sealant on frames
- Draughts coming in around windows and doors
- Gaps left after new windows were fitted
About our window mastic in Mottisfont
Around Mottisfont we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We work on composite doors, uPVC windows and window sills, and the jobs we see most are damp patches on the reveal after heavy rain and black, perished sealant on frames.
Around Mottisfont, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Every job is covered by a 12-month guarantee, wherever you are in Hampshire.
- Place
- Mottisfont (SO51)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
Resealing frames is a short job: the visit takes a few hours for a handful of frames, longer for a whole house. Leave it until water is coming in and you may need plastering and decorating as well. Where a wall is exposed, as many are in small places like Mottisfont, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What you pay reflects the work, not guesswork. That is why we ask a few questions first and agree the price before starting.
Why Mottisfont customers choose us
- Neat joints and a tidy finish
- More than 20 years in sealant work
- Rated 4.9 stars on Google
- White, clear, grey or coloured to suit, where the product allows
Take a look at our cost guide or customer reviews.
What the job involves on each surface
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
Composite doors
An exposed front door gets wind-driven rain, and the top and bottom corners tend to fail first. Those corners get the most care.
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep paint off silicone joints
- Do not use solvent cleaners on the joint
- Clean frames with a soft cloth and soapy water
- Check the mastic once a year
A yearly look round the frames is enough. Small splits are simple to catch before they leak.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Frames and glazing around Mottisfont
Historic houses like Mottisfont Abbey (about 0.2 miles north-east) are a reminder that the area around Mottisfont has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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 Mottisfont & Dunbridge station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Mottisfont is about 4 miles north-west of Romsey, in Hampshire. Wherever you are in the SO51 postcode area, we can carry out window mastic at your property. Our area takes in 683 places across Hampshire, large and small. We also work in Southampton, around 10 miles away.
Jobs for window mastic in SO51 is quoted and booked the same way as anywhere else. Streets in the area include Mottisfont Lane, Church Lane and Hatt Lane. Other places close to Mottisfont include Stonymarsh (1 mile east), Dunbridge (1 mile south-west), Kimbridge (1 mile south), Michelmersh (1 mile east) and Timsbury (2 miles south-east). Further out, we also cover Winchester (10 miles east), Eastleigh (10 miles south-east), Andover (12 miles north), Totton (8 miles south), Chandler's Ford (7 miles south-east) and Hedge End (13 miles south-east).
Local landmarks in Mottisfont
We work in homes and buildings around The Bear And Ragged Staff Public House and the streets around them. The closest station to Mottisfont is Mottisfont & Dunbridge station, about 0.6 miles south-west. A little further out are King Johns House (3.7 miles south-east) and Romsey Community Hospital (4 miles south-east).
Also near Mottisfont
Other services in Mottisfont
For landlords and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
How the visit works
There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes most of a day for a typical house, less for a few frames in most cases. For a village or hamlet like Mottisfont, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- 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.
Preparing for the visit
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
- Keep pets and children clear of the area while we work
Getting a quote
Want a quote for window mastic? Please ring 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Related advice
How we quote for window mastic
You will get a clear quote before work begins. It’s based on:
- The number and length of the joints
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
Combining jobs into one visit generally makes better use of the time than several visits. You will get one clear quote for the whole job.
Asking for a quote
When you call or email, it’s useful to know:
- If it’s domestic, commercial or a hotel
- The rough size of the job
- Photos by email, if that is easy
- If someone has resealed it before
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 email photos if that is easy.
Mottisfont: your questions answered
Do you cover Mottisfont for window mastic?
Yes, Mottisfont is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
I let a flat near Mottisfont & Dunbridge station. Can you help?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Is the new sealant paintable?
Most silicone can’t be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we’re done.
Does the work come with a guarantee?
Yes. Every job comes with our 12-month guarantee, and we are ARBOMaster approved applicators.
When to call us in Mottisfont
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. That’s what backing rod is for.
Keep an eye out for these signs:
- Rain getting in at the frame or under the sill
- Leaking joints at the ends of sills
- Untidy mastic left by window fitters
- Cracked or shrunken mastic around the frame
For an older house near a landmark such as Church of St Andrew, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before booking
- What the cure time is
- How long the guarantee is
- Whether the sealant suits the joint
- How much experience the applicator has