Hampshire · England
Funtley Window Mastic
Window mastic in Funtley from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps where the sill meets the wall
- Untidy mastic left by window fitters
- Cold air getting in at the frame edge
What sealant work cannot fix
In fairness, some problems need a different trade:
- A sash or casement that won’t close properly
- Damp problems in the wall away from the window
- A failed sealed unit that has misted up
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Composite doors
- Aluminium frames
- uPVC windows
- Window sills
- Patio & French doors
- Timber windows & doors
How we handle window mastic in Funtley
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Typical jobs include gaps where the sill meets the wall and cold air getting in at the frame edge, on uPVC windows, timber windows & doors and composite doors.
Around Funtley, 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.
You’re covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or send us an email.
- Place
- Funtley (PO15, PO17, PO16)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Also near Funtley
More services for Funtley
When to call us in Funtley
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid cannot stretch. Backing rod sets the right depth.
Common reasons people contact us are:
- A bead that doesn’t match the frame
- Gaps left after new windows were fitted
- Old mastic that has gone black or come away
- Rain getting in at the frame or under the sill
Schools such as Orchard Lea Infant School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- How the surfaces are prepared before sealing
- The length of the guarantee
- Is VAT in the price?
- How hidden problems are handled
Different surfaces, different methods
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
What we do, step by step
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Funtley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
How to prepare
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
- Mention any sign-in or site rules at work premises
How to get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and give you a clear price.
Advice
Aftercare tips
So the new joints stay in good condition:
- Avoid harsh chemicals near the mastic
- Ventilate rooms so frames don’t stay wet inside
- Make sure the drainage slots aren’t blocked
- Use gentle cleaners on frames and sealant
Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What window mastic looks like in Funtley
Funtley 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’s 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Fareham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. For an older house near a landmark such as Church of St Francis, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Funtley is about 1 mile north of Fareham, in Hampshire. Funtley gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Funtley is one of 683 towns and villages in Hampshire where we work for window mastic. We also work in Portsmouth, about 7 miles from Funtley.
We work across PO15, PO17 and PO16 for window mastic. Local streets include Funtley Road, Stag Way and Roebuck Avenue, all of which we cover. We also cover Knowle (1 mile north), Heathfield (1 mile south), Tapnage (1 mile north), Catisfield (2 miles south-west) and Titchfield Park (2 miles west). Within a short drive, we also cover Winchester (14 miles north), Gosport (5 miles south-east), Havant (10 miles east), Eastleigh (9 miles north-west), Horndean (9 miles east) and Totton (13 miles west).
Around Funtley
In Funtley, that means homes and buildings near The Henry Cort Community College and The Miners Arms. The closest station to Funtley is Fareham station, roughly 1.4 miles south-east of the centre. Nearby you’ll also find Carron Row Farm Museum (1.5 miles south-west) and Fareham Shopping Centre (1.7 miles south-east). The countryside around Funtley includes Portsdown Hill and Swanwick Lakes.
FAQs for Funtley
Can you help a landlord with a rental near Fareham station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Will you come out to Funtley?
Yes, Funtley is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do the sealants smell?
Some sealants have a smell while they cure. Opening a window helps.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
Do you have sealant for grey or black windows?
Yes. White, brown, anthracite grey, black and clear sealants are all available.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What affects the quote in Funtley
The price is agreed before any work begins. It’s based on:
- Which sealant suits the joint
- The number of rooms or windows
- The amount of work
- When we can work, for business premises
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
To help us quote quickly, please include:
- The problem you’ve noticed
- Whether it has been sealed before
- Photos by email, if that is easy
- Where the property is
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
