Oxfordshire · England
Window Mastic in Frieth
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Frieth. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked internal joints between frame and plaster
- Cold air getting in at the frame edge
- Gaps where the sill meets the wall
About our window mastic in Frieth
Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. We’re often asked to deal with sealant in the wrong colour for the frame and mastic that has split away from the wall, across aluminium frames, composite doors and patio & French doors.
Mastic can only go onto a dry, clean joint, so window work in Frieth is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
We stand behind the work with a one-year guarantee.
- Location
- Frieth (RG9)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Frames and glazing around Frieth
Historic houses like West Wycombe Park House (about 3.2 miles north-east) are a reminder that the area around Frieth 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. 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.
Homes close to Church of St John the Evangelist include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Frieth Church of England Combined School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Frieth is about 4 miles north-west of Marlow, in Oxfordshire. Every kind of property in Frieth is covered for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Our area takes in 443 places across Oxfordshire, large and small. Our Reading page covers work nearby (12 miles or so).
We work across the RG9 postcode area for window mastic and the streets around it. Local streets include Frieth Hill, Ellery Rise and Hayles Field, and we cover them all. Other places close to Frieth include Little Frieth (1 mile north-west), Lane End (1 mile north-east), Bolter End (1 mile north), Fingest (1 mile north-west) and Cadmore End (2 miles north-west). Further out, we also cover Thame (11 miles north-west), Henley-on-Thames (6 miles south-west), Benson (11 miles west), Chinnor (7 miles north), Tilehurst (13 miles south-west) and Wallingford (12 miles west).
Near you in Frieth
In Frieth, that means homes and buildings near Yew Tree pub and the streets around them. For rail, the closest station is Marlow station, about 4.3 miles south-east of the centre. Well-known places in the area include Chiltern Sound Phonograph Museum (3.9 miles south-east) and High Wycombe Castle (4.7 miles east). For a walk, there’s Yoesden.
The process
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. It normally takes a few hours for a few frames, or a day or more for a whole house. Somewhere like Frieth 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.
- 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.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Mention any parking rules near the property
- Move anything stored near the joints
- Let us know about stairs, lifts or work at height
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details and send photos if you have them.
Related advice
When something else is needed
A few problems are outside what sealant work can do:
- Condensation trapped between the panes
- Rotten timber, which needs a joiner first
- Damp problems in the wall away from the window
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before you book.
Where we work in Frieth
- Patio & French doors
- uPVC windows
- Window sills
- Aluminium frames
- Timber windows & doors
- Composite doors
When to call us in Frieth
On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
People usually contact us after spotting something like this:
- Cracked or shrunken mastic around the frame
- Cracked internal joints between frame and plaster
- Cold air getting in at the frame edge
- Rain getting in at the frame or under the sill
Letting a property close to Marlow station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
What your quote should include
- What guarantee comes with the work
- What product goes in the joint
- Is VAT in the price?
- How much experience the applicator has
Landlord and commercial work in Frieth
We work for letting agents and landlords as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Places near Frieth
More services for Frieth
Questions from Frieth
Can you do window mastic in Frieth?
Yes, Frieth is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Will you come out to Frieth?
Yes. Frieth is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Where is Mr Mastic based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
Can you do upstairs windows?
Yes, in most cases. We plan safe access before the job, so mention the height and anything in the way.
Will new mastic stop draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that’s a different fix, and we will say so.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Different surfaces, different methods
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.
Timber windows & doors
Timber moves with moisture as well as heat, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Leave it or put it right?
If you are painting or rendering, reseal at the same time. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. Around Frieth, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why book with us
- 12-month guarantee on every job
- Fully insured
- Over 20 years’ experience
- Old sealant always removed completely
Take a look at our cost guide or customer reviews.