Surrey · England
Window Mastic in Addlestone
We cover Addlestone for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- A bead that doesn’t match the frame
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Window mastic for homes and businesses in Addlestone
Around Addlestone we seal all kinds of frames: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. If you’re dealing with black, perished sealant on frames and gaps where the sill meets the wall, we can put it right.
In smaller places like Addlestone, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Addlestone (KT15)
- Wider area
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
If you’re painting or rendering, reseal at the same time. Fresh joints finish the job neatly. Around Addlestone, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why us?
- We agree the colour with you first
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
- A sealant colour to suit the surroundings
Read how sealant jobs are priced or our reviews.
How we quote for window mastic
Your quote is based on your job. We look at:
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- Whether the work is at height
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Asking for a quote
What to tell us when you ask for a quote:
- How we’d reach the joints
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
Want a quote for window mastic? Please call 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear price before work begins.
Landlords, agents and businesses in Addlestone
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Different surfaces, different methods
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall.
How the visit works
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours for a handful of frames, longer for a whole house. For a job in Addlestone, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
Get a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. We will give you a clear price before any work starts.
Advice
Addlestone homes and the weather
Historic houses like Botleys Mansion (about 1.8 miles west) are a reminder that the area around Addlestone has older buildings as well as new. 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. 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.
Schools such as Darley Dene Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Homes close to St Paul's include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Addlestone is about 5 miles north-east of Woking, in Surrey. Jobs in Addlestone get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Surrey coverage runs to 395 places, and Addlestone is one of them. There’s also a page for London, about 19 miles away.
Our applicators cover all of KT15 for window mastic. Streets in the area include Market Street, High Street and Station Road, and we cover them all. With the A317 and A318 close by, Addlestone is easy for our applicators to reach. If you’re just outside Addlestone, we cover New Haw (1 mile south), Brooklands (2 miles south-east), Weybridge (2 miles east), St George's Hill (2 miles east) and Byfleet (2 miles south). Larger places within reach include Guildford (9 miles south), Woking (5 miles south-west), Camberley (11 miles west), Epsom (10 miles east), Ewell (10 miles east) and Egham (5 miles north-west).
Around Addlestone
In Addlestone, that means homes and buildings near Jubilee High School, Woburn Park and St George's College Weybridge and the streets around them. There’s a railway station in Addlestone itself: Addlestone station. Other landmarks nearby include Runnymede Hospital (1.5 miles west). Not far away are St Ann's Hill and Gracious Pond.
Places near Addlestone
What else we do in Addlestone
Signs you need window mastic in Addlestone
Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, and a gap filled solid cannot flex. Backing rod sets the right depth.
Common reasons people contact us include:
- Mastic that’s falling out in pieces
- Rushed sealant from a window installation
- Cracked or shrunken mastic around the frame
- Gaps where the sill meets the wall
Rented homes near Addlestone station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
What to look for in a quote
- What guarantee comes with the work
- What the cure time is
- How the colour is chosen
- What happens if they find a problem under the old sealant
Addlestone questions
Is Addlestone in your area for window mastic?
Yes. Our work covers London and the South East, and Addlestone is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will send you a clear quote.
Will you come out to Addlestone?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords and businesses?
Yes. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Do you have insurance?
Yes. We’re fully insured.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.