Reading · England
Window & door mastic in Norcot, Reading
Mastic around window and door frames, sills and patio doors in Norcot, with a 12-month guarantee on every job. Call for a quick quote.
- Mastic that’s falling out in pieces
- Mastic that has split away from the wall
- Whistling draughts around closed windows
Norcot homes and the weather
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Mapledurham House (about 1.8 miles north) nearby, there’s older building stock in the area around Norcot as well as newer homes. 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.
If you live in an older home near Tilehurst Methodist Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Tilehurst station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Norcot is about 2 miles west of Reading, in Reading. We carry out window mastic for homes and businesses in Norcot. 34 places in Reading are on our list, large and small.
Every address in RG30 and RG31 is covered for window mastic, from the main roads to the quietest streets. Streets in the area include Ash Road, Tay Road and Tyle Road, all of which we cover. Other places close to Norcot include Tilehurst Within (1 mile south-west), Tilehurst (1 mile west), Horncastle (1 mile south), Little Heath (1 mile west) and Fords Farm (1 mile south). Within a short drive, we also cover Caversham (3 miles north-east), Shinfield (5 miles south-east), Arborfield Garrison (8 miles south-east), Whitley Wood (4 miles south-east), Sonning Common (4 miles north-east) and Whitley (4 miles south-east). As one of the bigger places in Reading, Norcot has homes, rented property and businesses of every kind.
What’s near Norcot
We work in homes and buildings around The Butchers Arms, Prospect School and Round Copse, among other places. The closest station to Norcot is Tilehurst station, roughly 0.8 miles north of the centre. A little further out are Battle Hospital (1.3 miles east) and Royal Berkshire Regiment Museum (1 mile east). For a walk, there’s South Lake and Moor Copse Nature Reserve.
About our window mastic in Norcot
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on uPVC windows, aluminium frames and window sills, and people most often call us about cracked internal joints between frame and plaster and cracked or shrunken mastic around the frame.
Many houses in smaller places like Norcot have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- Norcot (RG30, RG31)
- Region
- Reading
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Broken hinges, locks or handles
- Draughts through the window seals rather than the frame
- A failed sealed unit that has misted up
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Where we work in Norcot
- Timber windows & doors
- Patio & French doors
- Window sills
- Aluminium frames
- Composite doors
- uPVC windows
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Wipe condensation off the frames
- Don’t use solvent cleaners on the joint
- Do not aim a pressure washer at the joints
- Wash the frames with mild soapy water
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.
Towns and villages near Norcot
What else we do in Norcot
What affects the quote in Norcot
For a quick quote, just ask. The main things that affect it are:
- The product the joint needs
- How much there is to do
- The number of rooms or windows
- Access and height
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a morning for a couple of windows and a door. A visit to Norcot is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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
- Plan for the work area to be out of bounds to pets and children
- Mention any tricky access
- Try not to wet indoor joints just before the visit
How to get a quote
We quote each job on its own. Just ring 0345 464 0079 or send us an email with the details, and photos are welcome.
Read more
How the job changes by surface
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Patio & French doors
Patio and French doors have the longest joints on most houses. Most leaks start at the bottom corners, so we pay close attention there.
What happens if it’s left?
Resealing frames is a short job: it takes anything from an hour or two to a full day, depending on how many frames there are. Leave it until water is coming in and you may need plastering and decorating as well. Homes in smaller places like Norcot can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start.
Why choose Mr Mastic in Norcot
- We never seal over old sealant
- We agree the colour with you first
- Fully insured
- 20+ years of sealant experience
Take a look at what affects the cost and customer reviews.
Signs you need window mastic in Norcot
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. A sealant that cannot keep up eventually tears.
If you can see any of these, it’s time to have the joints looked at:
- Rain getting in at the frame or under the sill
- Gaps left after new windows were fitted
- Black, perished sealant on frames
- A bead that does not match the frame
For site and facilities teams at buildings such as Meadow Park Academy, its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- Who does the work, and how experienced they are
- Which sealant they’ll use, and why
- How long to leave it before use
- Is the old sealant removed completely?
Norcot questions
Can you help a landlord with a rental near Tilehurst station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Will you come out to Norcot?
Yes. Norcot 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.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we’re using and why.
Should I try DIY first?
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.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you when we finish.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Is the work guaranteed?
Yes. Every job comes with our 12-month guarantee, and we are ARBOMaster approved applicators.