Surrey · England
Fetcham Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Fetcham and across Surrey. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rushed sealant from a window installation
- Leaking joints at the ends of sills
- Whistling draughts around closed windows
Signs you need window mastic in Fetcham
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, so it comes away long before its time.
People usually contact us after spotting one of these:
- Leaking joints at the ends of sills
- Rushed sealant from a window installation
- Cold air getting in at the frame edge
- White mastic on grey or black frames
If you look after a building such as Oakfield Junior School, larger buildings have plenty of frames, and the mastic around each one ages.
Comparing quotes
- What happens if they find a problem under the old sealant
- The length of the guarantee
- What product goes in the joint
- How much experience the applicator has
How we handle window mastic in Fetcham
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. The sealant then grips the two sides it should. We work on uPVC windows, patio & French doors and timber windows & doors, and common reasons people get in touch are water coming in at the bottom corners of a door and gaps left after new windows were fitted.
In smaller places like Fetcham, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
All our work is covered by our one-year guarantee.
- Location
- Fetcham (KT22, KT23)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Fetcham homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Polesden Lacey (about 2.4 miles south) are a reminder that the area around Fetcham 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.
In the older streets around Church of St. Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Leatherhead station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Fetcham is about 5 miles south-west of Epsom, in Surrey. Anywhere in KT22, we cover window mastic for homes and businesses. Fetcham is one of 395 places in Surrey we cover for window mastic. For nearby work, see our Crawley page (14 miles or so).
We work across the KT22 and KT23 postcode area for window mastic and the streets around it. We cover properties on The Street, Bell Lane and Gatesden Road. Fetcham is on the B2122, so it’s easy for us to get to with everything needed for window mastic. Other places close to Fetcham include Great Bookham (1 mile south-west), Leatherhead (1 mile east), Mickleham (2 miles south-east), Little Bookham (2 miles south-west) and Westhumble (3 miles south). Within a short drive, we also cover Guildford (10 miles west), Woking (10 miles west), Epsom (5 miles north-east), Horley (11 miles south-east), Redhill (9 miles south-east) and Ewell (6 miles north-east).
Around Fetcham
We work in homes and buildings around River Mole LNR, Therfield School and Yehudi Menuhin School. The closest station to Fetcham is Leatherhead station, about 1.2 miles north-east. Well-known places in the area include Headley Court (3.4 miles east) and Betchworth Castle (4.5 miles south-east). For a walk, there’s Claremont Lake and Box Hill.
When it isn’t the sealant
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Broken hinges, locks or handles
- Rotten timber, which needs a joiner first
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Where we work in Fetcham
- Window sills
- uPVC windows
- Composite doors
- Aluminium frames
- Timber windows & doors
- Patio & French doors
Different surfaces, different methods
Patio & French doors
Heavy door frames can move more than windows. A flexible sealant copes with that without cracking.
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. It comes out, deep gaps get backing rod and the joint is resealed.
How we quote for window mastic
Jobs vary more than people expect. The main factors:
- Working hours on commercial sites
- How many areas need sealing
- Mould in or behind the old joints
- Access and height
What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- If someone has resealed it before
- What’s wrong with the joints now
- Where the property is
- Photos by email, if that is easy
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.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Nearby places to Fetcham
Other services in Fetcham
The process
There’s no need to move everything out, only the area right around the joints. We protect the rest, and the work takes anything from an hour or two to a full day, depending on how many frames there are in most cases. For a job in Fetcham, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
How to prepare
- Clear the area around the work
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved before giving you a price.
Related advice
Fetcham questions
Can you help a landlord with a rental near Leatherhead station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Can you do window mastic in Fetcham?
Yes. Our work covers London and the South East, and Fetcham is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
How much does window mastic cost in Fetcham?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or email us with a short description of the job.
Are you fully insured?
Yes. Full insurance covers our work.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Is the new sealant paintable?
Silicone generally won’t take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
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.
Do you work on first-floor windows?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Landlords, agents and businesses in Fetcham
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.