Hampshire · England
Window & door mastic in Farringdon, Hampshire
Professional window mastic in and around Farringdon, with old sealant always removed completely.
- Cracked sealant at the sill ends
- Sealant in the wrong colour for the frame
- Gaps between the frame and the inside reveal
How the visit works
Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes most of a day for a typical house, less for a few frames. Somewhere like Farringdon needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Let us know about earlier repairs to the joints
- On commercial sites, let us know about site rules
- Let us know about stairs, lifts or work at height
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or email us.
Related advice
How we handle window mastic in Farringdon
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. Where the air is getting in through the window itself, we’ll say so. We work on patio & French doors, composite doors and timber windows & doors, and the jobs we see most are leaking joints at the ends of sills and cold air getting in at the frame edge.
In a village or hamlet like Farringdon, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Place
- Farringdon (GU34)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

What affects the cost of window mastic
Jobs vary more than people expect. The main factors:
- The number and length of the joints
- Any working-time requirements on site
- Whether there’s mould to deal with
- The type of sealant required
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Asking for a quote
To make quoting easier, let us know:
- Access, such as stairs, a lift or height
- The address or postcode of the job
- Whether it’s a home or a business
- The rough size of the job
Want a quote for window mastic? Please call 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
Surface by surface
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
Looking after it afterwards
After the cure time, these simple habits help:
- Keep jet washers away from the mastic
- Do not paint over the silicone
- Walk round the house once a year and look at the joints
- Make sure the drainage slots are not blocked
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just ring 0345 464 0079 or email us.
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.
Towns and villages near Farringdon
Other services in Farringdon
Landlord and commercial work in Farringdon
We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured for the work.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
When it is not the sealant
It helps to know what we cannot do too:
- Draughts through the window seals rather than the frame
- Broken hinges, locks or handles
- Misting between the panes of a double-glazed unit (that needs a new unit)
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Timber windows & doors
- Patio & French doors
- Window sills
- Composite doors
- uPVC windows
- Aluminium frames
Window mastic in Farringdon: local notes
With historic houses such as Bentworth Hall (about 3.7 miles north-west) nearby, there’s older building stock in the area around Farringdon as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Alton station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Farringdon is about 3 miles south of Alton, in Hampshire. We carry out window mastic for homes and businesses in Farringdon, as part of our work across Hampshire. Our area takes in 683 places across Hampshire, large and small. You can also see our page for Portsmouth, about 21 miles away.
Jobs for window mastic in GU34 is quoted and booked the same way as anywhere else. You’ll find streets such as Hall Lane, Crows Lane and Gaston Lane, all of which we cover. Neighbouring places we cover for window mastic include Upper Farringdon (1 mile north-east), Lower Farringdon (1 mile west), Chawton (2 miles north), Hartley Mauditt (2 miles east) and Alton (3 miles north). Within a short drive, we also cover Basingstoke (12 miles north-west), Winchester (15 miles west), Fleet (13 miles north-east), Horndean (14 miles south), Aldershot (14 miles north-east) and Petersfield (8 miles south).
Landmarks near Farringdon
We work in homes and buildings around Rose and Crown Inn and the streets around them. Farringdon’s nearest station is Alton station, about 3 miles north. Well-known places in the area include The Romany Museum (2.3 miles south-east) and Alton Community Hospital (2 miles north). Not far away are Selborne Hill.
Farringdon questions
Do you cover Farringdon for window mastic?
Yes. We work across London and the South East, and Farringdon is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Do you work for landlords with property near Alton station?
Yes. We work for letting agents and landlords as well as householders. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
Do you do commercial work?
Yes. We can plan bigger jobs in stages.
Can I paint over the new sealant?
Not if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can resealing stop a draught around my window?
Often, yes. Air often gets in between the frame and the wall, and resealing inside and out closes it.
Why deal with it now?
Resealing frames is a short job: the visit takes anything from an hour or two to a full day, depending on how many frames there are. Wait for damp to appear and there may be plaster and decorating to sort out too. Where a wall is exposed, as many are in small places like Farringdon, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is usually more efficient than separate visits. We will give you a clear price for the lot.
What you get with us
- Any old sealant cut out fully, not covered over
- 180+ five-star Google reviews
- Domestic, commercial and hotel work
- Tidy, careful work
