Surrey · England
Window & door mastic in Brook, Surrey
Professional window mastic in and around Brook, with every bit of old sealant taken out first and a one-year guarantee.
- Draughts coming in around windows and doors
- Mastic that is falling out in pieces
- Leaking joints at the ends of sills
How we handle window mastic in Brook
From a single sill to a whole house of windows, you will get a clear quote before any work starts. Just phone 0345 464 0079 or email us and tell us how many frames there are and how they’re reached. We are often asked to deal with old mastic that has gone black or come away and cold air getting in at the frame edge, on window sills, timber windows & doors and composite doors.
Around Brook, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Brook (GU8)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a handful of frames, longer for a whole house. Somewhere like Brook needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job and send pictures if you have them.
Read more
More services for Brook
How the job changes by surface
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. The paint or stain needs to be sound where the sealant meets it.
Honest limits
In fairness, there are a few things sealant will not fix:
- Worn gaskets, brush seals or a door that has dropped
- Condensation trapped between the panes
- Damp problems in the wall away from the window
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before you book.
Surfaces we seal
- Window sills
- uPVC windows
- Composite doors
- Aluminium frames
- Timber windows & doors
- Patio & French doors
When to call us in Brook
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
The most common problems we see are:
- Old mastic that has gone black or come away
- Untidy mastic left by window fitters
- Cold air getting in at the frame edge
- Mastic that has split away from the wall
Rented homes near Witley station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What to look for in a quote
- How the surfaces are prepared before sealing
- How long to leave it before use
- Is VAT in the price?
- Whether they seal over old material or remove it
Leave it or put it right?
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Where a wall is exposed, as many are in small places like Brook, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or drop us an email.
Why choose Mr Mastic in Brook
- Rated 4.9 stars on Google
- Arbo and Everbuild products
- You choose the colour before work begins
- An ARBOMaster approved applicator
Frames and glazing around Brook
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as King Edward's School Witley are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Brook is about 8 miles south-east of Farnham, in Surrey. If you need window mastic in Brook, it’s easy to get a quote: please phone 0345 464 0079 or email us. We’re based in Crawley and cover Surrey, Brook included. Our Surrey coverage runs to 395 places, Brook among them. There’s also a page for Crawley, roughly 21 miles from Brook.
Work in GU8 is quoted and booked the same way as anywhere else. Local streets include Brook Road, Church Lane and Park Lane, and we cover them all. We also cover the places around Brook: Sandhills (1 mile east), Wormley (1 mile east), Bowlhead Green (1 mile west), Witley (2 miles north-east) and Hambledon (2 miles east). Within a short drive, we also cover Guildford (9 miles north-east), Woking (13 miles north), Camberley (14 miles north), Farnham (8 miles north-west), Frimley (13 miles north) and Haslemere (4 miles south-west).
Landmarks near Brook
In Brook, that means homes and buildings near Rodborough and Dog And Pheasant Public House. For rail, the closest station is Witley station, about 1 mile east of the centre. Nearby you will also find Milford Hospital (3 miles north-east). Green spaces nearby include Gibbet Hill and Upper Lake.
Brook: your questions answered
Is Brook within the area you cover?
Yes. Brook 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 Brook?
Yes, Brook is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
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.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Can you match the sealant to my frames?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
What affects the cost of window mastic
Your quote is based on your job. We take into account:
- Which sealant suits the joint
- Whether the work is at height
- Any working-time requirements on site
- Whether there’s mould to deal with
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
You do not need to know the technical terms. It helps if you can tell us:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Brook and across Surrey. We can quote a run of properties together, and we’re fully insured.
For anyone letting property in or around Brook, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.