Greater London · England
Window & door mastic in Raynes Park, Greater London
Problem with your window and door frames in Raynes Park? We remove the old material, prepare the joints and seal them properly.
- Draughts coming in around windows and doors
- Draughty joints inside around the window
- Leaking joints at the ends of sills
About our window mastic in Raynes Park
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and we give a one-year guarantee on the work. We are often asked to deal with whistling draughts around closed windows and mastic that has split away from the wall, across timber windows & doors, composite doors and aluminium frames.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. The mastic around them dries out and cracks with age, which is when draughts and damp patches appear in homes in Raynes Park.
Big or small, you get the same 12-month guarantee.
- Place
- Raynes Park (SW20, KT3, SM4)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the quote in Raynes Park
Jobs vary more than people expect. What affects the quote:
- Whether the work is at height
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Helping us quote
To help us quote quickly, please include:
- The type of property
- How many joints, rooms or windows are involved
- Where the property is
- How we’d reach the joints
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
When something else is needed
It helps to know what we cannot do too:
- Damp problems in the wall away from the window
- Condensation trapped between the panes
- Draughts through the window seals rather than the frame
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before booking.
Surfaces we seal
- Patio & French doors
- Window sills
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Composite doors
Why it’s worth doing now in Raynes Park
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. In a flat in Raynes Park, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why us?
- One-year guarantee on every job
- Colour picked to suit the job
- Trusted Arbo and Everbuild sealants
- More than 20 years in sealant work
Read our cost guide or customer reviews.
Landlord and commercial work in Raynes Park
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
Towns and villages near Raynes Park
Other services in Raynes Park
What happens on the day
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes most of a day for a typical house, less for a few frames, including the tidy-up. For a job in Raynes Park, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- 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.
How to prepare
- Move anything stored near the joints
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know if you’ve seen damp or leaks
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Read more
Raynes Park homes and the weather
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Southside House (about 0.9 miles north) are a reminder that the area around Raynes Park has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Raynes Park is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you let a flat or house near Raynes Park station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Raynes Park is about 2 miles south-west of Wimbledon, in Greater London. Across the SW20 area, we can carry out window mastic at your property. Raynes Park is one of 764 towns and villages in Greater London we cover. London is on our list too, about 9 miles from Raynes Park.
All of SW20, KT3 and SM4 is covered for window mastic. You’ll find streets such as Gore Road, Edna Road and Wyke Road. Being close to the A238 and A298, Raynes Park is easy for our applicators to reach for window mastic. We also cover West Barnes (1 mile south-west), Bushey Mead (1 mile north-east), Cannon Hill (1 mile east), Motspur Park (1 mile north-west) and Wimbledon Chase (1 mile north-east). We also work in nearby towns such as London (9 miles north-east), City of Westminster (8 miles north-east), Marylebone (9 miles north-east), Kensington (7 miles north), St Pancras (10 miles north-east) and Shoreditch (11 miles north-east).
Around Raynes Park
We work in homes and buildings around Raynes Park High School, The Raynes Park Tavern and Cannon Hill Common. There’s a railway station in Raynes Park itself: Raynes Park station. Well-known places in the area include Wimbledon Museum (1.5 miles north-east) and Atkinson Morley Hospital (1 mile north). The countryside around Raynes Park includes Henman Hill and Derwent Floodwash.
Signs you need window mastic in Raynes Park
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
These are the problems we are asked about most:
- Leaking joints at the ends of sills
- Gaps between the frame and the inside reveal
- Hard, cracked sealant around windows
- Whistling draughts around closed windows
Managing a site like West Wimbledon Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- What insurance they hold
- The length of the guarantee
- Whether VAT is included
- Which sealant they’ll use, and why
Common questions in Raynes Park
Can you help a landlord with a rental near Raynes Park station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Can parking be tricky for a visit in Raynes Park?
Parking in Raynes Park, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or email us.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
Can new window sealant be painted?
That depends on the product. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before we start.
Is the work guaranteed?
Yes. Each job is covered for 12 months.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we are fully insured.
How long before the joint can be used?
Different products cure at different speeds, so follow the cure time we give you.