Surrey · England
Old Malden Window Mastic
Professional window mastic in and around Old Malden, with every bit of old sealant taken out first and a one-year guarantee.
- Untidy mastic left by window fitters
- Cracked or shrunken mastic around the frame
- Old mastic that has gone black or come away
Window mastic for homes and businesses in Old Malden
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. Typical jobs include untidy mastic left by window fitters and gaps between the frame and the inside reveal, across window sills, composite doors and patio & French doors.
Many houses in smaller places like Old Malden have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
You get a 12-month guarantee, the same in Old Malden as everywhere else we work.
- Place
- Old Malden (KT19, KT4, KT5)
- Region
- Surrey
- Cover
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Old Malden questions
Is Old Malden within the area you cover?
Yes. Old Malden 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.
I let a flat near Tolworth station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
Can new window sealant be painted?
Not generally, if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. You will know the timing when we quote.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Is the work guaranteed?
Yes. Each job is covered for 12 months.
Do you have sealant for grey or black windows?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Towns and villages near Old Malden
Other services in Old Malden
Why deal with it now?
Not every sealant suits a window. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Homes in smaller places like Old Malden can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
Why us?
- Sanitary silicone with an anti-fungal additive in wet areas
- Every job guaranteed for a year
- Domestic, commercial and hotel work
- We are fully insured
Read our cost guide or customer reviews.
The process
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes most of a day for a typical house, less for a few frames, depending on the size of the job. Parking around Old Malden is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
- Mention any tricky access
How to get a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.
Advice
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
What we can’t put right
Sealant isn’t the answer to every problem, and we’ll tell you before work begins. It will not solve:
- Worn gaskets, brush seals or a door that has dropped
- Soft or decayed wood in the frame
- A sash or casement that will not close properly
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Window sills
- Patio & French doors
- Composite doors
- uPVC windows
- Aluminium frames
- Timber windows & doors
What we’re called out for in Old Malden
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
The problems people normally mention when they call include:
- Draughts coming in around windows and doors
- Rushed sealant from a window installation
- Mastic that has split away from the wall
- Mastic that’s falling out in pieces
If you live in an older home near Parish Church of St Mary the Virgin, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Comparing quotes
- How the surfaces are prepared before sealing
- When the joint can take water or movement
- Who does the work, and how experienced they are
- Whether all the old sealant comes out first
Windows and doors in Old Malden
Historic houses like Fitznells Manor (about 1.8 miles south-east) are a reminder that the area around Old Malden has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Tolworth station, renewing tired window mastic between tenants heads off draught and damp complaints. If you look after a building such as Knollmead Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Old Malden is about 2 miles north-west of Ewell, in Surrey. Jobs in Old Malden get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Across Surrey, we cover 395 places, Old Malden among them. For nearby work, see our London page.
Work in KT19, KT4 and KT5 is quoted and booked the same way as anywhere else. Whether your property is on Curtis Road, Rowden Road and Grafton Road or anywhere close by, our applicators can take on the job. Other places close to Old Malden include Worcester Park (1 mile east), Tolworth (1 mile north-west), Stoneleigh (1 mile south-east), Berrylands (1 mile north-west) and Chessington (2 miles south-west). Within a short drive, we also cover Woking (14 miles west), Epsom (3 miles south), Horley (14 miles south), Redhill (10 miles south-east), Egham (13 miles west) and Reigate (10 miles south).
Near you in Old Malden
We work in homes and buildings around Richard Challoner School, The Plough Inn Public House and Hogsmill LNR, among other places. Old Malden’s nearest station is Tolworth station, about 0.5 miles west. A little further out are Bentall Centre (3 miles north-west) and Tolworth Hospital (0.9 miles west). The countryside around Old Malden includes The Lake and Kingston Hill Road area.
What affects the quote in Old Malden
Jobs vary more than people expect. What affects the quote:
- Whether there’s mould to deal with
- When we can work, for business premises
- The number and length of the joints
- How many areas need sealing
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, call 0345 464 0079 or email us and we will give you an honest view and a quote.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Photos by email, if that’s easy
- What’s wrong with the joints now
- Where the job is, and your postcode
- Roughly how big the job is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you’re ready, call 0345 464 0079 or drop us an email.
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.