Greater London · England
Window Mastic in Roehampton
Window and door frames in Roehampton need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- A bead that does not match the frame
- Whistling draughts around closed windows
- Leaking joints at the ends of sills
How we handle window mastic in Roehampton
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. To get one, call 0345 464 0079 or drop us an email with the number of frames and any access details for window mastic in Roehampton. We work on uPVC windows, window sills and aluminium frames, and common reasons people get in touch are sealant in the wrong colour for the frame and whistling draughts around closed windows.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Location
- Roehampton (SW15, SW13)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Aluminium frames
Coated aluminium needs a compatible sealant, and acetoxy silicones are not used, as they can attack some metals. Neutral-cure sealant is the safe choice.
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
What we cannot put right
It helps to know what we can’t do too:
- Broken hinges, locks or handles
- Damp problems in the wall away from the window
- Rotten timber, which needs a joiner first
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Surfaces we seal
- Aluminium frames
- Timber windows & doors
- Window sills
- uPVC windows
- Patio & French doors
- Composite doors
Aftercare tips
A little care helps the new joints last. Our advice:
- Avoid blasting the frames with a pressure washer
- Check the mastic once a year
- Wipe condensation off the frames
- Avoid harsh chemicals near the mastic
Most silicone sealants will not take paint, so if you’re planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
Leave it or put it right?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Why book with us
- Approved under the ARBOMaster scheme
- Full insurance on every job
- More than 20 years in sealant work
- Arbo and Everbuild products
Read what affects the cost and what customers say.
Landlords, agents and businesses in Roehampton
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.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Roehampton homes and the weather
In a converted house or block, who looks after the windows depends on the lease, so check that before you book. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around St Margaret's Church, the joint between an old wall and a newer frame is generally the first place rain gets in. As a London address, Roehampton can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. For landlords with property near Barnes station, renewing tired window mastic between tenants heads off draught and damp complaints.
Roehampton is about 2 miles south-west of Fulham, in Greater London. We provide window mastic to homeowners, landlords and businesses in Roehampton and the surrounding area, as part of our work across Greater London. Our area takes in 764 places across Greater London, from the larger towns to small villages. London is on our list too, around 7 miles away.
We cover every part of SW15 and SW13 for window mastic and the streets around it. That includes homes and businesses on Rodway Road, Cortis Road and Torwood Road and the roads around them. Neighbouring places we cover for window mastic include Putney (1 mile north-east), Barnes (1 mile north), Mortlake (1 mile north-west), East Sheen (1 mile north-west) and Putney Vale (2 miles south-west). Further out, we also cover London (7 miles north-east), City of Westminster (5 miles north-east), Marylebone (6 miles north-east), Kensington (3 miles north-east), St Pancras (7 miles north-east) and Shoreditch (8 miles north-east).
Local landmarks in Roehampton
In Roehampton, that means homes and buildings near King's Head pub, The Falcons School for Girls and ARK Putney Academy and the streets around them. Roehampton’s nearest station is Barnes station, roughly 0.8 miles north of the centre. Well-known places in the area include Queen Mary's Hospital (under half a mile west) and Putney Exchange (1 mile north-east). Not far away are Kew Gardens Lake and Duke's Hollow.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
How it works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. It usually takes a few hours for a handful of frames, longer for a whole house. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Before we arrive
- Mention if the joints have been sealed before
- Let us know about parking restrictions
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
Every job is quoted individually. Just ring 0345 464 0079 or send us an email with the details, and photos are welcome.
Read more
Towns and villages near Roehampton
Other services in Roehampton
Your questions about window mastic in Roehampton
Do you work for landlords with property near Barnes station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do window mastic in Roehampton?
Yes, Roehampton is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Does the work come with a guarantee?
Yes. Our one-year guarantee covers every job.
Is the new sealant paintable?
Not usually, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Do you seal inside as well as outside?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
Can I add another job to the visit?
Yes. More than one area can go on one quote.