West Berkshire · England
Window Mastic in Calcot
Mastic around window and door frames, sills and patio doors in Calcot, with a 12-month guarantee on every job. Ask us for a quote.
- Rushed sealant from a window installation
- Black, perished sealant on frames
- Draughty joints inside around the window
What we are called out for in Calcot
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
The problems people generally mention when they call are:
- Draughty joints inside around the window
- Cracked or shrunken mastic around the frame
- Cracked sealant at the sill ends
- Black, perished sealant on frames
If you look after a building such as Calcot Infant School and Nursery, its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- Whether all the old sealant comes out first
- How the colour is chosen
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
Window mastic in Calcot, done properly
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. Typical jobs include gaps where the sill meets the wall and gaps left after new windows were fitted, on timber windows & doors, aluminium frames and uPVC windows.
Homes around Calcot range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Where
- Calcot (RG31)
- Region
- West Berkshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Calcot homes and the weather
Historic houses like Mapledurham House (about 3.1 miles north) are a reminder that the area around Calcot 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. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Michael include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Theale station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Calcot is about 3 miles west of Reading, in West Berkshire. Every kind of property in Calcot is covered for window mastic. The work is guaranteed for a year. Across West Berkshire, we cover 155 places, and Calcot is one of them.
Work in RG31 works the same way as everywhere else we cover. That includes homes and businesses on Curtis Road, Barclay Road and Royal Avenue. We also cover the places around Calcot: Beansheaf Farm (1 mile south-east), Fords Farm (1 mile east), Horncastle (1 mile east), Little Heath (1 mile north) and Theale (1 mile west). Further out, we also cover Newbury (12 miles west), Thatcham (9 miles west), Burghfield Common (3 miles south), Speenhamland (12 miles west), Spencers Wood (5 miles south-east) and Shaw (12 miles west). Calcot is one of the larger places we cover in West Berkshire.
Near you in Calcot
Around Calcot, our work takes us to homes and buildings near Murdochs pub, Little Heath School and Calcot Park and the streets around them. The closest station to Calcot is Theale station, roughly 1.2 miles south-west. Well-known places in the area include Broad Street Mall (3.3 miles east) and Battle Hospital (2.5 miles north-east). Open spaces near Calcot include Moor Copse Nature Reserve and Hosehill Lake.
Towns and villages near Calcot
Also in Calcot
Common questions in Calcot
Do you cover Calcot for window mastic?
Yes. We work across London and the South East, and Calcot is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Will you come out to Calcot?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
Do you work for landlords and businesses?
Yes. We work in homes, commercial premises and hotels.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Will resealing my frames help with draughts?
It will if the frame joint is the problem. We find where the air is coming from before we reseal.
Surface by surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We’ll tell you which suits your home.
What affects the cost of window mastic
The quote reflects the job in front of us. We look at:
- Which sealant suits the joint
- The number and length of the joints
- Any working-time requirements on site
- Any mould that needs treating
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Any access issues, like height or stairs
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
- The rough size of the job
If you’re in Calcot and need window mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Landlord and commercial work in Calcot
We also work for property managers and facilities teams in Calcot and across West Berkshire. We can quote a run of properties together.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Avoid blasting the frames with a pressure washer
- Don’t paint over the silicone
- Keep drainage slots and sill grooves clear
- Keep paint and stain on wooden frames in good order
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
What happens on the day
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. In a smaller place like Calcot, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Preparing for the visit
- Keep children and pets away from the work area
- Clear the area around the work
- Let us know about stairs, lifts or work at height
Ask for a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Read more
Leave it or put it right?
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. In an older home around Calcot, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
What you get with us
- Any old sealant cut out fully, not covered over
- Full insurance on every job
- Tidy, careful work
- 180+ five-star Google reviews
Take a look at our cost guide and our reviews.