Hampshire · England
Farleigh Wallop Window Mastic
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Farleigh Wallop. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that’s falling out in pieces
- Rain getting in at the frame or under the sill
- White mastic on grey or black frames
Window mastic in Farleigh Wallop, done properly
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on aluminium frames, composite doors and patio & French doors, and the jobs we see most are cracked sealant at the sill ends and rushed sealant from a window installation.
Homes in small places like Farleigh Wallop often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
You get a one-year guarantee, the same in Farleigh Wallop as everywhere else we work.
- Place
- Farleigh Wallop (RG25)
- Region
- Hampshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Paint up to the joint, not over it
- Repaint timber before it’s bare
- Wipe condensation off the frames
- Make sure the drainage slots are not blocked
Try not to touch the new joint while it cures, for as long as we advise. Do not point a pressure washer at the joints.
Leaks usually 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.
Frames and glazing around Farleigh Wallop
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Hall Place (about 5 miles south-east) are a reminder that the area around Farleigh Wallop has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you live in an older home near Church of St. Andrew, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Managing a site like Brighton Hill Community School? Then the mastic around its windows and doors needs looking after like any other building’s.
Farleigh Wallop is about 3 miles south of Basingstoke, in Hampshire. Wherever you are in the RG25 postcode area, we cover window mastic for homes and businesses. Our area takes in 683 places across Hampshire, from the larger towns to small villages. Reading is on our list too, about 17 miles from Farleigh Wallop.
All of RG25 is within our area for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on The Avenue and Grammarsham Lane. Other places close to Farleigh Wallop include Hatch Warren (1 mile north), Dummer (2 miles west), Kempshott (2 miles north-west), Brighton Hill (2 miles north) and South Ham (3 miles north). Further out, we also cover Basingstoke (3 miles north), Winchester (14 miles south-west), Fleet (12 miles east), Aldershot (15 miles east), Alton (8 miles south-east) and Yateley (15 miles north-east).
Around Farleigh Wallop
The closest station to Farleigh Wallop is Basingstoke station, roughly 3.7 miles north of the centre. Well-known places in the area include Basing House (4.4 miles north-east) and Festival Place (3.6 miles north). For a walk, there’s The Mill Field and Farleigh Hill.
Landlords, agents and businesses in Farleigh Wallop
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Surface by surface
Window sills
The end joints of a sill tend to fail before the rest. We reseal them so rain can’t run into the wall.
Aluminium frames
Coated aluminium needs a compatible sealant, and acetoxy silicones aren’t used, as they can attack some metals. We use a neutral-cure product.
Why deal with it now?
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly. In a small place like Farleigh Wallop, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we will go through it with you.
Why book with us
- We agree the colour with you first
- Trusted Arbo and Everbuild sealants
- One-year guarantee on every job
- Rated 4.9 stars on Google
Take a look at what affects the cost and customer reviews.
Farleigh Wallop: your questions answered
Can you do window mastic in Farleigh Wallop?
Yes. We work across London and the South East, and Farleigh Wallop is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Will you come out to Farleigh Wallop?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Do you seal inside as well as outside?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
What affects the quote in Farleigh Wallop
We don’t publish a price list. What we look at:
- The number and length of the joints
- Any working-time requirements on site
- Any mould that needs treating
- How easy the joints are to reach
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
When you contact us, these details help:
- The rough size of the job
- A few pictures by email, if you can
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.
Nearby places to Farleigh Wallop
What else we do in Farleigh Wallop
Common problems we fix in Farleigh Wallop
Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
Common reasons people contact us include:
- Draughty joints inside around the window
- Untidy mastic left by window fitters
- Mastic that has split away from the wall
- Draughts coming in around windows and doors
Letting a property close to Basingstoke station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What your quote should include
- Who turns up on the day
- Is the old sealant removed completely?
- What the cure time is
- How the surfaces are prepared before sealing
What happens on the day
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take a morning for a couple of windows and a door. For a village or hamlet like Farleigh Wallop, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- 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
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
- Move anything stored near the joints
Ask for a quote
For window mastic in Farleigh Wallop, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.