Wokingham · England
Finchampstead Window Mastic
Our applicators work in Finchampstead on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.
- Black, perished sealant on frames
- Leaking joints at the ends of sills
- Rain getting in at the frame or under the sill
Why it’s worth doing now in Finchampstead
Failed mastic is not a reason to replace sound windows. If the frames and glass are in good order, resealing the joints is often all that’s needed. If we find failed glass units or worn seals, we’ll tell you. In a small place like Finchampstead, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Why choose Mr Mastic in Finchampstead
- A 12-month guarantee on all work
- An ARBOMaster approved applicator
- Sanitary silicone with an anti-fungal additive in wet areas
- A choice of colours where the product allows
Read what affects the cost and our reviews.
About our window mastic in Finchampstead
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. If you’re dealing with cracked sealant at the sill ends and gaps left after new windows were fitted, we can help, whatever the surface.
Homes in small places like Finchampstead often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Whatever the size of the job, you get the same 12-month guarantee.
- Place
- Finchampstead (RG40)
- Region
- Wokingham
- Cover
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Finchampstead
More services for Finchampstead
The process
We bring everything the job needs with us, so you do not need to buy or prepare anything. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a morning for a couple of windows and a door. Somewhere as small as Finchampstead, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
Before we arrive
- Let us know about stairs, lifts or work at height
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
Getting a quote
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Related advice
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Finchampstead homes and the weather
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.
Rented homes near Crowthorne station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. Homes close to Church of St James include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. For site and facilities teams at buildings such as Finchampstead CofE VA Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Finchampstead is about 2 miles north-west of Yateley, in Wokingham. Every kind of property in Finchampstead can book us for window mastic, old or new, large or small. The work is guaranteed for a year. Our Wokingham coverage runs to 35 places, and Finchampstead is one of them. We also work in Reading, about 8 miles from Finchampstead.
Postcode districts we cover here for window mastic: RG40. Whether your property is on The Village, Manor Barns Lane and Longwater Lane or anywhere close by, we can help. Other places close to Finchampstead include Eversley Centre (1 mile south-west), Eversley Cross (1 mile south), California (1 mile north-west), Eversley (1 mile west) and Lower Common (2 miles west). Larger places within reach include Reading (8 miles north-west), Wokingham (3 miles north), Woodley (7 miles north), Earley (6 miles north-west), Crowthorne (3 miles east) and Lower Earley (5 miles north-west).
Local landmarks in Finchampstead
In Finchampstead, that means homes and buildings near The Queen's Oak pub, Shepperlands Farm Nature Reserve and Yateley School. The nearest railway station is Crowthorne station, about 1.7 miles east of the centre. Nearby you’ll also find Pinewood Hospital (3.2 miles north-east). Not far away are Wildmoor Heath and Horseshoe Lake.
FAQs for Finchampstead
Do you cover smaller places like Finchampstead?
Yes. Finchampstead is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is Finchampstead in your area for window mastic?
Yes. Our work covers London and the South East, and Finchampstead is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Do you work for landlords and businesses?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels.
How many windows can you do in a day?
It depends on access, the old mastic and the size of the frames. You will know the timing when we quote.
How much does window mastic cost in Finchampstead?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Can you seal the gap between the frame and the plaster indoors?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
Is the new sealant paintable?
Silicone generally will not take paint. Let us know beforehand, and we will use a paintable product where it suits.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
What affects the quote in Finchampstead
Your quote is based on your job. We take into account:
- Any mould that needs treating
- The type of sealant required
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- A few photos by email, if you can
- Access, such as stairs, a lift or height
- If someone has resealed it before
- The address or postcode of the job
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or drop us an email.
Work for landlords, hotels and businesses
For anyone letting property in or around Finchampstead, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
How the job changes by surface
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A tidy bead in anthracite grey, black or a matching colour keeps the clean look.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- A frame that has rotted at the joint
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before you book.
Surfaces we seal
- Composite doors
- Window sills
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Aluminium frames