Oxfordshire · England
Window Mastic in Tidmarsh
Mastic around window and door frames, sills and patio doors in Tidmarsh, with a one-year guarantee on every job. Ask us for a quote.
- Mastic that is falling out in pieces
- Rain getting in at the frame or under the sill
- Cold air getting in at the frame edge
Frames and glazing around Tidmarsh
Historic houses like Mapledurham House (about 2.5 miles north-east) are a reminder that the area around Tidmarsh 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Pangbourne station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you live in an older home near Church of St Laurence, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Tidmarsh is about 5 miles west of Reading, in Oxfordshire. Our applicators cover window mastic for homes and businesses in Tidmarsh and the surrounding area, as part of our work across Oxfordshire. 443 places in Oxfordshire are on our list, from the larger towns to small villages.
Work in RG8 works the same way as everywhere else we cover. Whether your property is on Strachey Close and Tidmarsh Lane or a nearby road, we can help. We also cover the places around Tidmarsh: Sulham (1 mile east), Pangbourne (1 mile north), Whitchurch-on-Thames (1 mile north), Little Heath (2 miles south-east) and Englefield (2 miles south). We also work in nearby towns such as Didcot (12 miles north-west), Henley-on-Thames (9 miles north-east), Benson (10 miles north), Wallingford (9 miles north), Great Western Park (12 miles north-west) and Watlington (13 miles north).
Landmarks near Tidmarsh
Locally, jobs take us to homes and businesses close to Denefield School and The Cross Keys pub, among other places. The closest station to Tidmarsh is Pangbourne station, about 1.1 miles north. Well-known places in the area include Thames Valley Police Museum (3.5 miles south) and Battle Hospital (4 miles east). The countryside around Tidmarsh includes Moor Copse Nature Reserve and Hosehill Lake.
Window mastic for homes and businesses in Tidmarsh
Around Tidmarsh we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on window sills, timber windows & doors and composite doors, and common reasons people get in touch are draughty joints inside around the window and cracked sealant at the sill ends.
In a village or hamlet like Tidmarsh, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Big or small, you get the same one-year guarantee in Tidmarsh and across Oxfordshire.

- Where
- Tidmarsh (RG8)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Tidmarsh
What else we do in Tidmarsh
Why it’s worth doing now in Tidmarsh
A quick bead over the top of old mastic looks like an easy fix, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. In a small place like Tidmarsh, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What you pay reflects the work, not guesswork. That’s why we ask about the job first.
Why book with us
- Domestic, commercial and hotel work
- You choose the colour before work begins
- Over 20 years’ experience
- Approved under the ARBOMaster scheme
Read what affects the cost or customer reviews.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes most of a day for a typical house, less for a few frames. Somewhere as small as Tidmarsh, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
- On commercial sites, let us know about site rules
Getting a quote
We quote each job on its own, so the first step is telling us about yours. Simply call 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
Read more
How to look after the new joints
So the new joints stay in good condition:
- Avoid blasting the frames with a pressure washer
- Don’t use solvent cleaners on the joint
- Keep timber frames painted
- Check the mastic once a year
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Do you need window mastic in Tidmarsh?
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
Keep an eye out for any of the following:
- Old mastic that has gone black or come away
- Cold air getting in at the frame edge
- Sealant in the wrong colour for the frame
- Cracked or shrunken mastic around the frame
Schools such as Pangbourne Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- Who does the work, and how experienced they are
- Whether VAT is included
- Whether you can choose the colour
- How the surfaces are prepared before sealing
Different surfaces, different methods
Composite doors
Composite doors are normally hung in an uPVC-type frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. If we find rot, we’ll tell you before going ahead, as that is a job for a joiner.
Tidmarsh: your questions answered
Is Tidmarsh within the area you cover?
Yes. Tidmarsh is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do window mastic in Tidmarsh?
Yes, Tidmarsh is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing.
Can I add another job to the visit?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Is the work guaranteed?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
For landlords and businesses
For anyone letting property in or around Tidmarsh, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
