South East England and London
Window Mastic in Slough
From the largest town to the smallest village in Slough, we can help with window mastic. A clear quote before we start, and a one-year guarantee.
Towns we cover in Slough
Mastic around window and door frames, sills and patio doors. Pick your town below to see the details for your area, and call or email us for a quick quote.
Larger towns
Also in Slough
- Fire-rated sealant
- New-build mastic & snagging
- Remedial sealant & repairs
- Commercial & hotel sealant
- Regrouting
- Glazing & conservatory sealant
- External & façade joints
- Gutter, fascia & soffit sealing
- Bathroom & kitchen resealing
- Floor & skirting joints
- Sand mastic for sash & case windows
Postcode areas we cover
About window mastic in Slough
Over two decades of sealing frames has taught us which products suit which walls. We’re fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. We work on uPVC windows, timber windows & doors and composite doors, and people most often call us about whistling draughts around closed windows and water coming in at the bottom corners of a door.
You don’t need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the job takes anything from an hour or two to a full day, depending on how many frames there are in most cases.
- We start by checking each window and door with you.
- 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.
Pricing in Slough
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What you get with us
- Rated 4.9 stars on Google
- Over 20 years’ experience
- Fully insured
- A sealant colour to suit the surroundings
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Landmarks near Slough
Around Slough, our work takes us to homes and buildings near Herschel Grammar School, St Michael and All Angels and Westgate School. Other local landmarks include Herschel Park (1.1 miles south-east), The Godolphin Junior Academy (0.6 miles north) and The Moon and Spoon pub (0.6 miles south-east). The nearest railway station is Slough station, roughly 0.7 miles east of the centre. Other landmarks nearby include Upton Hospital (0.9 miles south-east) and Windsor Castle (2.1 miles south). Not far away are Taplow Lake and Burnham Beeches.
Frames and weather across Slough
In Slough, window mastic work takes in houses, flats, conservatories and commercial glazing, in Cippenham, Chalvey and Britwell and well beyond. Every outside joint is sealed dry and clean, so the forecast plays its part.
From Victorian terraces to post-war new towns and modern estates, homes across the South East and London cover every era. Each needs the right sealant for its age and materials.
Slough: For an older house near a landmark such as St Michael and All Angels, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Herschel Grammar School, the mastic around its windows and doors needs looking after like any other building’s.
What we’re called out for in Slough
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.
The most common problems we see are:
- Mastic that has split away from the wall
- Water coming in at the bottom corners of a door
- Draughts coming in around windows and doors
- Cracked internal joints between frame and plaster
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Walk round the house once a year and look at the joints
- Paint up to the joint, not over it
- Keep timber frames painted
- Air rooms to keep condensation down around windows
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
Why act early?
Draughts and leaks don’t always mean new 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 will tell you.
Comparing quotes
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first
Surface by surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal and we avoid acetoxy silicones, which can react with some metals. We use a neutral-cure product.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Your questions about window mastic in Slough
Can you do upstairs windows?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we will confirm what’s needed.
Can new window sealant be painted?
Silicone generally will not take paint. Let us know beforehand, and we’ll use a paintable product where it suits.
What information do you need?
Let us know what needs doing and where, plus pictures if you have them. If we need more, we’ll ask.
Can you seal the gap between the frame and the plaster indoors?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
When is the sealant fully cured?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.